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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1989. Отображено 100.
24-05-2012 дата публикации

Method of preparing 1-chloroacetamido-1,3,3,5,5-pentamethylcyclohexane

Номер: US20120130127A1
Автор: Herbert Koller, Michael Pyerin
Принадлежит: Mer Pharma GmbH and Co KGaA

Method of preparing 1-chloroacetamido-1,3,3,5,5-pentamethylcyclohexane, an intermediate in the synthesis of 1-amino-1,3,3,5,5-pentamethylcyclohexane (Neramexane) or a pharmaceutically acceptable salt thereof, comprising step (iii): (iii) reacting 1-hydroxy-1,3,3,5,5-pentamethylcyclohexane with chloroacetonitrile in the presence of an acid, wherein 1-hydroxy-1,3,3,5,5-pentamethylcyclohexane is employed in step (iii) as obtained in the reaction of a methylmagnesium halide with 3,3,5,5-tetramethylcyclohexanone without having been subjected to a purification step.

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Номер записи: 1
04-04-2013 дата публикации

PROCESS FOR THE PREPARATION OF CU-CR OXIDES FOR SELECTIVE OXIDATION REACTIONS

Номер: US20130085305A1
Автор: Bal Rajaram, Ghosh Shilpi, Jagdish Kumar, Pendem Chandrashekar, Sarkar Bipul, Shankha Shubhra Acharyya
Принадлежит: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH

The present invention provides a process for the preparation of Cu—Cr oxides by hydrothermal synthesis method using hydrazine as a reducing agent and cetyltrimethylammonium bromide as a surfactant and these oxides are very active for selective oxidation of benzene, toluene and ethylbenzene to produce phenol, benzaldehyde and acetophenone, respectively. 1. A process for the preparation of Cu—Cr oxide as catalyst , the process comprising the steps of:{'sub': 3', '2', '2', '3', '3', '2, 'a. mixing of Cu(NO).3HO and Cr(NO).9HO to obtain a solution, wherein the molar ratio of Cu to Cr is in the range of 0.05-0.7,'}b. adding a surfactant drop wise into the solution as obtained in step (a) with constant stirring, wherein the molar ratio of Cu to surfactant in the obtained solution is in the range of 0.5 to 1.5,c. adding a reducing agent drop wise into the solution as obtained in step (b) with constant stirring to obtain a gel wherein the molar ratio of Cu to reducing agent is in the range of between 0.5 to 1.5,d. heating the gel as obtained in step (c) at temperature ranging between 30-55° C. for a period ranging between 2-4 hrs followed by heating the gel at temperature ranging between 100-200° C. hydrothermally for a period ranging between 12-30 hours to obtain solid catalyst followed by washing the solid catalyst with excess water,e. drying the solid catalyst as obtained in step (d) at 80-110° C. for a period in the range of 6-12 h.f. calcining the solid catalyst as obtained in step (e) at temperature ranging between 300-900° C. for a period of 5-12 hrs to obtain Cu—Cr oxide catalyst.2. The process according to claim 1 , wherein the surfactant used in step (b) is cetyltrimethyl ammonium bromide (CTAB).3. The process according to claim 1 , wherein the reducing agent used in step (c) is hydrazine.4. A process for single step selective oxidation of aromatic compounds using catalyst of claim 1 , wherein the process comprises the steps of:{'claim-ref': {'@idref': 'CLM-00001 ...

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Номер записи: 2
11-04-2013 дата публикации

SELECTIVE HYDROCARBON OXIDATION USING HETEROGENOUS CATALYSTS

Номер: US20130090495A1
Автор: Dimitratos Nikolaos, Dummer Nicholas Fracois, Hammond Ceri, Hutchings Graham John, Lopez-Sanchez Jose Antonio
Принадлежит:

A process for the complete or partial oxidation of hydrocarbons comprises contacting a C-Chydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C-Chydrocarbon to at least one corresponding C-Coxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry and Lewis acid centers. Particularly useful catalysts may include, for example, metal-modified ZSM-5 and other zeolites. 1. A process for the complete or partial oxidation of hydrocarbons , comprising{'sub': 1', '8', '1', '8', '1', '8, 'contacting a C-Chydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C-Chydrocarbon to at least one corresponding C-Coxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry acid centers and Lewis acid centers.'}2. The process of claim 1 , wherein the conditions include a temperature from 0° C. to 90° C.3. The process of claim 1 , wherein the conditions include a total system pressure of from 1 to 140 standard atmospheres (0.1 MPa to 14 MPa).4. The process of claim 1 , wherein the C-Chydrocarbon is selected from methane claim 1 , ethane claim 1 , propane claim 1 , and combinations thereof.5. The process of claim 1 , wherein the conditions include the C-Chydrocarbon and the hydrogen peroxide being in a phase selected from (a) a condensed phase; (b) a gas phase; and (c) a combination thereof.6. The process of claim 1 , wherein the catalyst includes silicon (Si) claim 1 , oxygen (O) claim 1 , and at least one modifying metal or modifying metal oxide selected from the group consisting of aluminum (Al) claim 1 , gallium (Ga) claim 1 , iron (Fe) claim 1 , zinc (Zn) claim 1 , copper (Cu) claim 1 , titanium (Ti) claim 1 , phosphorus (P) claim 1 , oxides thereof claim 1 , and combinations thereof.7. The process of claim 6 , wherein the catalyst includes an oxide of ...

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Номер записи: 3
09-05-2013 дата публикации

PROCESS FOR THE PREPARATION OF OXOVINYLIONOL AND ITS O-PROTECTED DERIVATIVES

Номер: US20130116473A1
Автор: BENSON Stefan, Ernst Hansgeorg, PUHL Michael, SIEGEL Wolfgang
Принадлежит: BASF SE

The present invention relates to the preparation of oxovinylionol and its O-protected derivatives of the formula I 123.-. (canceled)25. The process according to claim 24 , wherein the oxidant comprises an organic hydroperoxide which is selected from among alkyl hydroperoxides and arylalkyl hydroperoxides.26. The process according to claim 25 , wherein the organic hydroperoxide is selected from among tertiary C-C-alkyl hydroperoxides.27. The process according to claim 24 , wherein the oxidant is employed in an amount of from 1 to 10 mol per mole of the compound of the formula II.28. The process according to claim 24 , wherein the transition metal is employed in the form of a transition metal compound.29. The process according to claim 24 , wherein the transition metal is selected from among Cu claim 24 , Co claim 24 , Fe and Mn and their mixtures.30. The process according to claim 29 , wherein the transition metal is employed in the form of at least one compound which is selected from among CuCl claim 29 , CuCl claim 29 , CuI claim 29 , CoCl claim 29 , Cu(II)oxalate claim 29 , Co(II) salts of organic monocarboxylic acids claim 29 , such as Co(acetate) claim 29 , Co(2-ethylhexanoate)or Co(naphthenate) claim 29 , Co(II)oxalate claim 29 , Co(acac) claim 29 , Co(acac) claim 29 , Co(salen) claim 29 , Co(salen)Cl claim 29 , Mn(salen) and Mn(salen)Cl claim 29 , and Mn(acac) claim 29 , where acac is acetylacetonate and salen is the N claim 29 ,N′-bis(salicylidene)ethylenediamino ligand.31. The process according to claim 24 , wherein the at least one transition metal is employed in a total amount of from 5×10to 0.5 mol per mole of the compound of the formula II.32. The process according to claim 24 , wherein the reaction with the oxidant is carried out in the presence of a complex ligand which has at least one nitrogen atom suitable for coordination with the transition metal.33. The process according to claim 34 , wherein the ligand has at least one group suitable for ...

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Номер записи: 4
06-06-2013 дата публикации

BIOMASS GASIFICATION AND INTEGRATED PROCESSES FOR MAKING INDUSTRIAL CHEMICALS THROUGH AN ESTER INTERMEDIATE

Номер: US20130143973A1
Автор: Arora Dinesh, Shuff Andrew M., Townsend David W.
Принадлежит: Celanese International Corporation

The invention relates to integrated processes for producing industrial chemicals, such as alcohols, carboxylic acids, esters, aldehydes, olefins and polymers from biomass. In one embodiment, the invention is to a process comprising the steps of: introducing biomass and an oxygen stream to a gasifier and converting the biomass into a product gas, wherein the gasifier is operated at a pressure of at least 10 bar; compressing the product gas at a compression ratio that is less than 3:1 to form a compressed product gas; directing a first portion of the compressed product gas to an alcohol synthesis reactor to produce methanol; reacting carbon monoxide with the methanol to produce acetic acid; esterifying the acetic acid with ethanol to form ethyl acetate; and reducing the ethyl acetate with hydrogen in the presence of a catalyst to form ethanol. 1. An integrated process for producing ethanol from biomass , comprising:introducing biomass and an oxygen stream to a gasifier and converting the biomass into a product gas, wherein the gasifier is operated at a pressure of at least 10 bar;compressing the product gas at a compression ratio that is less than 3:1 to form a compressed product gas;directing a first portion of the compressed product gas to an alcohol synthesis reactor to produce methanol;reacting carbon monoxide with the methanol to produce acetic acid;reducing a first portion of the acetic acid with hydrogen to produce ethanol in the presence of a catalyst having a selectivity to ethanol that is greater than 50%;esterifying a second portion of the acetic acid and the ethanol to produce ethyl acetate; andreducing the ethyl acetate with hydrogen to produce ethanol, provided that at least times more ethanol is produced by reducing the ethyl acetate than is formed by reducing the acetic acid, and wherein none of the ethanol produced by reducing the ethyl acetate is esterified with acetic acid.2. The process of claim 1 , wherein the gasifier is operated at a pressure of ...

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Номер записи: 5
11-07-2013 дата публикации

PRODUCTION OF ETHANOL FROM SYNTHESIS GAS

Номер: US20130178671A1
Автор: BUREAU Charles, Chornet Esteban, Lynch David, Marie-Rose Stephane
Принадлежит:

A process for producing ethanol from synthesis gas by reacting the hydrogen and carbon monoxide of the synthesis gas to provide methanol, which then is subjected to dehydration to produce at least one ether, such as dimethyl ether. The ether, such as dimethyl ether, then is subjected to carbonylation with unreacted carbon monoxide from the synthesis gas to provide at least one acetate, such as methyl acetate. The acetate then is subjected to hydrogenolysis to produce ethanol. 1. A process for producing ethanol from synthesis gas , comprising:(a) reacting synthesis gas, said synthesis gas containing hydrogen and carbon monoxide under conditions to provide a first product including at least one ether, unreacted hydrogen, and unreacted carbon monoxide; and(b) reacting said first reaction product under conditions to provide a second reaction product including ethanol.2. The process of wherein said at least one ether is dimethyl ether.3. The process of wherein step (a) comprises:(i) reacting said hydrogen with said carbon monoxide of said synthesis gas to produce methanol; and(ii) converting said methanol to said at least one ether, thereby providing said first reaction product including said at least one ether, said unreacted hydrogen and said unreacted carbon monoxide.4. The process of wherein step (a) is conducted in the presence of a catalyst.5. The process of wherein said catalyst is selected from the group consisting of copper chromite claim 4 , copper oxide claim 4 , zinc oxide claim 4 , and mixtures thereof.6. The process of wherein said catalyst is supported on a support selected from the group consisting of alumina and zeolites.7. The process of wherein said catalyst further includes a transition metal.8. The process of wherein step (b) comprises:(i) reacting said at least one ether with carbon monoxide to produce at least one acetate; and(ii) subjecting said at least one acetate to hydrogenolysis to produce ethanol.9. The process of wherein step (b) is ...

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Номер записи: 6
25-07-2013 дата публикации

Process for the Preparation of Oxidized Phospholipids

Номер: US20130190523A1
Автор: Halperin Gideon, Kovalevski-Ishai Eti
Принадлежит: Vascular Biogenics Ltd.

Novel synthetic routes, which are highly applicable for industrial preparation of therapeutically beneficial oxidized phospholipids are disclosed. Particularly, novel methods for efficiently preparing compounds having a glycerolic backbone and one or more oxidized moieties attached to the glycerolic backbone, which are devoid of column chromatography are disclosed. Further disclosed are novel methods of introducing phosphorous-containing moieties such as phosphate moieties to compounds having glycerolic backbone and intermediates firmed thereby. 1. A method of preparing a compound having a glycerolic backbone and at least one oxidized moiety-containing residue attached to the glycerolic backbone via an ether bond , the method comprising:providing a first compound having a glycerolic backbone and at least one free hydroxyl group;providing a second compound having at least one unsaturated bond and at least one reactive group capable of forming an ether bond with said free hydroxyl group;reacting said first compound and said second compound to thereby obtain a third compound, said third compound having a glycerolic backbone and an unsaturated bond-containing residue being attached to said glycerolic backbone via an ether bond:isolating said third compound. to thereby obtain a purified third compound;reacting said purified third compound with an oxidizing agent, to thereby obtain a fourth compound, said fourth compound having a glycerolic backbone and an oxidized moiety-containing residue attached to said glycerolic backbone via an ether bond; andisolating said fourth compound to thereby obtain a purified fourth compound, thereby obtaining the compound having a glycerolic backbone and at least one oxidized moiety-containing residue attached to said glycerolic backbone via an ether bond,the method being devoid of column chromatography.2. The method of claim 1 , wherein isolating said third compound comprises:collecting said third compound;providing a solution of said ...

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Номер записи: 7
01-08-2013 дата публикации

Organometallic Molybdenum Acetylide Dioxo Complex And Process For The Preparation Thereof

Номер: US20130197245A1
Автор: Acham Vaibhav Ravindrakumar, Biradar Ankush, Dongare Mohan Keraba, Umbarkar Shubhangi Bhalchandra
Принадлежит:

An organometallic molybdenum acetylide dioxo complex of formula (η-CH)MoO(—Cs≡CPh) and provides a simple, short, efficient process for the synthesis of organometallic molybdenum dioxo complex which is used as catalyst for a number of oxidation reactions. 1. Organometallic molybdenum acetylide dioxo complex of formula (η-CH)MoO(—C≡CPh).2. Organometallic molybdenum acetylide dioxo complex as claimed in is useful as catalyst for the oxidation of olefins claim 1 , alcohols claim 1 , anilines claim 1 , sulfides and alkanes.3. Organometallic molybdenum acetylide dioxo complex as claimed in claim 1 , wherein said complex is recyclable.4. Organometallic molybdenum acetylide dioxo complex as claimed in claim 1 , wherein catalytically active species (η-CH) MoO(O)(—C≡CPh) of the said organometallic molybdenum dioxo complex (η-CH) MoO(—C≡CPh) formed after reacting with hydrogen peroxide is water soluble.5. A process for preparation of organometallic molybdenum acetylide dioxo complex of formula (η-CH)MoO(—C≡CPh) as claimed in and the said process comprising the steps of:{'sub': 2', '2', '2, 'i. treating molybdenum trioxide with aqueous halo acids HX wherein X═F, Cl, Br or I in the molar ratio of the trioxide to HX ranging between 1:6 to 1:15 at temperature in the range of 40° C. to 90° C. for period in the range of 2 to 5 hr to obtain aqua complex of dihalo dioxo molybdenum of formula MoOX.2HO wherein X═F, Cl, Br or I;'}{'sub': 2', '2', '2', '2, 'ii. adding dimethylsulphoxide or N,N-dimethylformamide to dihalo dioxo molybdenum as obtained in step (i) in the molar ratio ranging between 1:2 to 1:20 to form greenish adduct of formula MoOX.2DMSO or MoOX.2DMF wherein X═F, Cl, Br or I;'}{'sub': '2', 'iii. treating greenish adduct as obtained in step (ii) with sodium cyclopentadiene in molar ration of 1:1 to 1:20 followed by stirring at the rate of 100 to 1000 rpm to form cyclopentadiene dioxomolybdenum halo complex of formula CpMoOX wherein X═F, Cl, Br or I;'}{'sup': '5', 'sub': 5', ...

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Номер записи: 8
08-08-2013 дата публикации

"OXIDATION OF HYDROCARBONS"

Номер: US20130203984A1
Автор: Becker Christopher L., Benitez Franisco M., Dakka Jihad M., Mozeleski Edmund J.
Принадлежит:

In a process for oxidizing a hydrocarbon to a product comprising at least one of the corresponding hydroperoxide, alcohol, ketone, carboxylic acid and dicarboxylic acid, the hydrocarbon is contacted with an oxygen-containing compound in at least one oxidation zone in the presence of a catalyst comprising a cyclic imide having an imide group of formula (I): 2. The process of claim 1 , wherein the oxygen-containing compound is air that has been at least partially dehydrated.3. The process of claim 1 , wherein said hydrocarbon comprises an alkane or cycloalkane.4. The process of claim 1 , wherein said hydrocarbon comprises isobutane or cyclohexane.5. The process of claim 1 , wherein said hydrocarbon comprises cyclohexane claim 1 , the product comprises cyclohexanol and the process further comprises converting the cyclohexanol to adipic acid.6. The process of claim 1 , wherein said hydrocarbon comprises cyclohexane claim 1 , the product comprises cyclohexanone and the process further comprises converting the cyclohexanone to caprolactam.7. The process of claim 1 , wherein said hydrocarbon comprises iso-butane claim 1 , the product comprises tert-butyl hydroperoxide and the process further comprises using the tert-butyl hydroperoxide as an oxidation catalyst.9. The process of claim 8 , wherein said alkylaromatic compound of general formula (II) is selected from ethyl benzene claim 8 , cumene claim 8 , sec-butylbenzene claim 8 , sec-pentylbenzene claim 8 , p-methyl-sec-butylbenzene claim 8 , 1 claim 8 ,4-diphenylcyclohexane claim 8 , sec-hexylbenzene claim 8 , and cyclohexylbenzene.10. The process of claim 8 , and further comprising cleaving the hydroperoxide to produce phenol or a substituted phenol.13. The process of claim 1 , wherein said cyclic imide comprises N-hydroxyphthalimide.14. The process of claim 1 , wherein said oxygen-containing compound supplied to said oxidation zone has a water content of less than or equal to 0.3% by weight of the oxygen-containing ...

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Номер записи: 9
08-08-2013 дата публикации

Process for the oxidation of hydrocarbons

Номер: US20130204038A1
Автор: Françoise Igersheim, Serge Veracini, Sophie Galinat
Принадлежит: Rhodia Operations SAS

A method for oxidizing hydrocarbons, in particular saturated hydrocarbons, for producing peroxides, alcohols, ketones, aldehydes and/or diacids is described. Also described, is a method for oxidizing a cycloaliphatic saturated hydrocarbon using molecular oxygen for producing ketones/alcohols, and more precisely for oxidizing cyclohexane into cyclohexanol and cyclohexanone using molecular oxygen.

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Номер записи: 10
12-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND PROPYLENE

Номер: US20130237713A1
Автор: CHEWTER Leslie Andrew, RAMESH Rajaram, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst to retrieve an olefinic product stream comprising ethylene and/or propylene, and a C4+ hydrocarbon fraction, comprising paraffins, normal olefins and iso-olefins. The C4+ hydrocarbon fraction is subjected to an etherification process with wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether and an etherification product stream is retrieved and separated into an ether-enriched stream and an iso-olefin-depleted C4+ hydrocarbon stream. Part of the iso-olefin-depleted C4+ hydrocarbon stream from the process to purge part of the paraffinic C4+ hydrocarbons while another part of the iso-olefin-depleted C4+ hydrocarbon stream is recycled. The tert-alkyl ether in the ether-enriched stream is converted to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst. 1. A process for preparing ethylene and/or propylene , comprising the steps of ethylene and/or propylene, and', 'a C4+ hydrocarbon fraction, comprising paraffins, normal olefins and iso-olefins;, 'a) contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving an olefinic product stream comprisingb) subjecting at least part of the C4+ hydrocarbon fraction to an etherification process with methanol and/or ethanol wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream;c) separating at least part of the etherification product stream into at least an ether-enriched stream and an iso-olefin-depleted C4+ hydrocarbon stream;d) withdrawing part of the iso-olefin-depleted C4+ hydrocarbon stream from the process to purge part of the ...

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Номер записи: 11
12-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE AND AN ISO-OLEFIN-DEPLETED C4 OLEFINIC PRODUCT

Номер: US20130237714A1
Автор: SADASIVAN VIJAYAKUMARI Sivakumar, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and/or propylene and an iso-olefin-depleted C4 olefinic product, comprising the steps of: 1. A process for preparing ethylene and/or propylene and an iso-olefin-depleted C4 olefinic product , comprising the steps of:a) providing a C4 hydrocarbon stream, comprising normal olefins and iso-olefins;b) subjecting the C4 hydrocarbon stream to an etherification process with methanol and/or ethanol wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream;c) separating at least part of the etherification product stream into at least an ether-enriched stream and a first iso-olefin-depleted C4 olefinic product;d) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving a second olefinic product comprising ethylene and/or propylene.2. A process according to claim 1 , wherein the second olefinic product further comprises C4 olefins and wherein the process comprises the further step of:e) contacting at least part of the C4 olefins in the second olefinic product with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and converting at least part of the olefinic product into a further olefinic product comprising ethylene and/or propylene.3. A process according to claim 2 , wherein the zeolite-comprising catalyst comprises at least one zeolite selected from MFI claim 2 , MEL claim 2 , TON and MTT type zeolites.4. A process according to claim 2 , wherein the molecular sieve-comprising catalyst comprises at least one SAPO claim 2 , AlPO claim 2 , or MeAlPO type molecular sieve.5. A process according to claim 3 , wherein the molecular sieve-comprising catalyst comprises at least ...

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Номер записи: 12
19-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND PROPYLENE

Номер: US20130245290A1
Автор: VAN WESTRENEN Jeroen, VIJAYAKUMARI Sivakumar Sadasivan
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and propylene, comprising the step of: 1. A process for preparing ethylene and propylene , comprising the step of:a) contacting a feed comprising methanol, ethanol and C4+ olefins with a catalyst, comprising ZSM-5 having a silica to alumina ratio in the range of from 40 to 100, at a temperature in the range of from 350 to 1000° C. to obtain a olefinic product comprising ethylene and propylene.2. A process according to claim 1 , wherein the olefinic product comprises ethylene and propylene in a weight ratio of ethylene to propylene equal to or below 1 claim 1 , preferably a weight ratio of ethylene to propylene in the range of from 1:2 to 1:1.3. A process according to claim 1 , wherein the molar ratio of ethanol to C4+ olefin in the feed to step is in the range of from 1:1 to 1:500.4. A process according to claim 1 , wherein the catalyst further comprises at least one zeolite selected from MEL claim 1 , TON and MTT type zeolites.5. A process according to claim 1 , wherein the ZSM-5 has a silica to alumina ratio of in the range of from 60 to 90.6. A process according to claim 1 , wherein the olefinic product further comprises C4+ olefins and at least part of the C4+ olefins are provided to step (a) as part of the feed.7. A process according to claim 1 , wherein the olefinic product further comprises C4+ olefins and at least part of the C4+ olefins are provided to a further step (b) and converted to a further olefinic product comprising ethylene and propylene in an olefin cracking process using a zeolite-comprising catalyst.8. A process according to claim 7 , wherein the catalyst of step (b) is the same as the catalyst in step (a).9. A process according to claim 1 , wherein the feed comprises methanol and ethanol and the weight ratio of methanol to ethanol in the feed is in the range of from 1:3 to 20:1.10. A process according to claim 1 , wherein the ethylene is further converted into at least one of ...

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Номер записи: 13
19-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND PROPYLENE

Номер: US20130245291A1
Автор: SADASIVAN VIJAYAKUMARI Sivakumar, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and/or propylene, comprising the steps of contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving an olefinic product stream comprising: 1. A process for preparing ethylene and/or propylene , comprising the steps of: ethylene and/or propylene, and', 'a C4+ hydrocarbon fraction, comprising paraffins, normal olefins and iso-olefins;, 'a) contacting a stream comprising C4+ olefins with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving an olefinic product stream comprisingb) recycling a first part of the C4+ hydrocarbon fraction to step (a).c) subjecting a second part of the C4+ hydrocarbon fraction to an etherification process with methanol and/or ethanol wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream;d) separating at least part of the etherification product stream into at least an ether-enriched stream and an iso-olefin-depleted C4+ hydrocarbon stream;e) withdrawing at least part of the iso-olefin-depleted C4+ hydrocarbon stream from the process to purge part of the paraffinic C4+ hydrocarbons;f) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000° C.2. A process according claim 1 , wherein step (f) comprises recycling at least part of the ether-enriched stream to step (a).3. A process according claim 1 , further comprising providing an oxygenate—comprising stream to step (a) and contacting the oxygenate-comprising stream with the zeolite-comprising catalyst together with the C4+ olefins.4. A process according claim 1 , wherein part of the stream comprising C4 ...

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Номер записи: 14
19-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE AND AN ISO-OLEFIN-DEPLETED OLEFINIC PRODUCT

Номер: US20130245292A1
Автор: CHEWTER Leslie Andrew, RAMESH Rajaram, SADASIVAN VIJAYAKUMARI Sivakumar, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and/or propylene and an iso-olefin-depleted olefinic product, comprising the steps of: 1. A process for preparing ethylene and/or propylene and an iso-olefin-depleted olefinic product , comprising the steps of:a) providing a C5 hydrocarbon-comprising stream, comprising C5 cyclopentene and C5 iso-olefins;b) subjecting the C5 hydrocarbon-comprising stream to an etherification process with methanol and/or ethanol wherein at least part of the C5 iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether, and retrieving an etherification product stream;c) separating at least part of the etherification product stream into at least an ether-enriched stream and a first iso-olefin-depleted olefinic product;d) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving a second olefinic product comprising ethylene and/or propylene.2. A process according to claim 1 , wherein the second olefinic product further comprises C5 olefins and wherein the process comprises the further steps:e) contacting at least part of the C5 olefins in the second olefinic product with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and converting at least part of the olefinic product into a further olefinic product comprising ethylene and/or propylene.3. A process according to claim 2 , wherein the zeolite-comprising catalyst comprises at least one zeolite selected from MFI claim 2 , MEL claim 2 , TON and MTT type zeolites.4. A process according to claim 2 , wherein the molecular sieve-comprising catalyst comprises at least one SAPO claim 2 , AlPO claim 2 , or MeAlPO type molecular sieve.5. A process according to claim 3 , wherein the molecular sieve-comprising catalyst ...

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Номер записи: 15
19-09-2013 дата публикации

METHOD FOR START-UP OF AN OXYGENATE-TO-OLEFIN PROCESS

Номер: US20130245294A1
Автор: CHEWTER Leslie Andrew, RAMESH Rajaram, SADASIVAN VIJAYAKUMARI Sivakumar, VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a method for start-up of an Oxygenate-to-Olefins process, which process comprises the steps: 2. A method according to claim 1 , wherein the oxygenate-comprising feedstock initially consists of components selected from the group of externally supplied tert-alkyl ether claim 1 , methanol claim 1 , dimethyl ether and diluent.3. A method according to claim 1 , wherein the oxygenate-comprising feedstock initially consists of components selected from the group of externally supplied tert-alkyl ether claim 1 , methanol and steam.4. A method according to claim 1 , wherein the oxygenate-comprising feedstock initially contains in the range of from 3 to 50 wt % of tert-alkyl ether based on the oxygenates in the oxygenate-comprising feedstock.5. A method according to claim 1 , wherein subsequently at least part of the first amount of externally supplied tert-alkyl ether is substituted by at least part of the C4+ olefins in the product fraction containing C4+ olefins.6. A method according to claim 1 , wherein subsequently at least part of the first amount of externally supplied tert-alkyl ether is substituted by a further tert-alkyl ether obtained by etherification of iso-olefins contained the product fraction containing C4+ olefins with methanol and/or ethanol.7. A method according to claim 6 , wherein the iso-olefins contained in the product fraction containing C4+ olefins include at least one of isobutene and isopentene.8. A method according to claim 6 , wherein the iso-olefins are converted with methanol to the tert-alkyl ether by contacting the iso-olefin with methanol in the presence of an etherification catalyst at a temperature in the range of from 30 to 100° C.9. A method according to claim 7 , wherein the iso-olefins are converted with methanol to the tert-alkyl ether by contacting the iso-olefin with methanol in the presence of an etherification catalyst at a temperature in the range of from 30 to 100° C.10. A method according to claim 8 ...

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Номер записи: 16
19-09-2013 дата публикации

PROCESS FOR PREPARING ETHYLENE AND/OR PROPYLENE AND A BUTADIENE-ENRICHED PRODUCT

Номер: US20130245295A1
Автор: VAN WESTRENEN Jeroen
Принадлежит: SHELL OIL COMPANY

The present invention provides a process for preparing ethylene and propylene and a butadiene-enriched product, comprising the steps of: 1. A process for preparing ethylene and/or propylene and a butadiene-enriched product , comprising the steps of:a) providing a C4 hydrocarbon stream, comprising iso-olefins and in the range of from 10 to 90 wt % of butadiene, based on the weight of the C4 hydrocarbon stream.b) subjecting the C4 hydrocarbon stream to an etherification process, wherein at least part of the iso-olefins are converted with methanol and/or ethanol to an tert-alkyl ether in the presence of an etherification catalyst, wherein the molar ratio of methanol and/or ethanol to iso-olefin is maintained above 1, and retrieving an etherification product stream;c) separating at least part of the etherification product stream into at least an ether-enriched stream and a butadiene-enriched product;d) converting at least part of the tert-alkyl ether in the ether-enriched stream to ethylene and/or propylene by contacting at least part of the ether-enriched stream with a molecular sieve-comprising catalyst at a temperature in the range of from 350 to 1000° C. and retrieving an olefinic product comprising ethylene and/or propylene.2. A process according to claim 1 , wherein the olefinic product further comprises C4 olefins and wherein the process comprises the further step of:e) contacting at least part of the C4 olefins in the olefinic product with a zeolite-comprising catalyst at a temperature in the range of from 350 to 1000° C. and converting at least part of the olefinic product into a further olefinic product comprising ethylene and/or propylene.3. A process according to claim 2 , wherein the zeolite-comprising catalyst comprises at least one zeolite selected from MFI claim 2 , MEL claim 2 , TON and MTT type zeolites.4. A process according to claim 2 , wherein the molecular sieve-comprising catalyst comprises at least one SAPO claim 2 , AlPO claim 2 , or MeAlPO type ...

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Номер записи: 17
19-09-2013 дата публикации

PROCESS FOR PREPARING ADAMANTANE POLYOL

Номер: US20130245329A1
Автор: NISHIMURA Yoshio, Ouchi Takashi
Принадлежит: MITSUBISHI GAS CHEMICAL COMPANY, INC.

The present invention provides a process for preparing an adamantane polyol by reacting an adamantane with a ruthenium compound and a hypochlorite in a biphasic water/organic solvent system. The process includes the steps of adding an inorganic adsorbent to a reaction system; and adding an alkali to a reaction mixture to separate the ruthenium compound together with the inorganic adsorbent, and reusing the separated ruthenium compound and inorganic adsorbent in a subsequent reaction. 2. The process for preparing an adamantane polyol according to claim 1 , wherein the inorganic adsorbent is put into a reactor in advance or added immediately before the reaction is finished.3. The process for preparing an adamantane polyol according to claim 1 , wherein the alkali is added such that a reaction water phase has a pH value of 7 or higher.4. The process for preparing an adamantane polyol according to claim 1 , wherein the inorganic adsorbent is at least one selected from the group consisting of a calcium phosphate claim 1 , a talcite claim 1 , and an amorphous aluminosilicate.5. The process for preparing an adamantane polyol according to claim 4 , wherein the calcium phosphate is tricalcium phosphate.6. The process for preparing an adamantane polyol according to claim 4 , wherein the talcite is hydrotalcite.7. The process for preparing an adamantane polyol according to claim 4 , wherein the calcium phosphate is hydroxyapatite.8. The process for preparing an adamantane polyol according to claim 2 , wherein the inorganic adsorbent is at least one selected from the group consisting of a calcium phosphate claim 2 , a talcite claim 2 , and an amorphous aluminosilicate.9. The process for preparing an adamantane polyol according to claim 3 , wherein the inorganic adsorbent is at least one selected from the group consisting of a calcium phosphate claim 3 , a talcite claim 3 , and an amorphous aluminosilicate. The present invention relates to a process for preparing an adamantane ...

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Номер записи: 18
05-12-2013 дата публикации

HYDROCARBONS SELECTIVE OXIDATION WITH HETEROGENEOUS CATALYSTS

Номер: US20130324761A1
Автор: Dimitratos Nikolaos, Dummer Nicholas Fracois, Hammond Ceri, Hutchings Graham John, Lopez-Sanchez Jose Antonio
Принадлежит: University College Cardiff Consulltants Limited

A process for the complete or partial oxidation of hydrocarbons comprises contacting a C-Chydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C-Chydrocarbon to at least one corresponding C-Coxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry and Lewis acid centers. Examples include zeolites modified with selected metals or metal oxides. Including copper, either in the catalyst, in a second catalyst of similar description, or as a homogeneous salt, increases both selectivity and activity of the process, particularly where an iron-containing catalyst is used. 1. A process for the complete or partial oxidation of hydrocarbons , comprising{'sub': 1', '8', '1', '8', '1', '8, 'contacting a C-Chydrocarbon and hydrogen peroxide in the presence of a heterogeneous catalyst under conditions suitable to convert the C-Chydrocarbon to at least one corresponding C-Coxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry acid centers and Lewis acid centers.'}2. The process of claim 1 , wherein the conditions include a temperature from 0° C. to 90° C.3. The process of claim 1 , wherein the conditions include a total system pressure of from 1 to 140 standard atmospheres (0.1 MPa to 14 MPa).4. The process of claim 1 , wherein the C-Chydrocarbon is selected from methane claim 1 , ethane claim 1 , propane claim 1 , and combinations thereof.5. The process of claim 1 , wherein the conditions include the C-Chydrocarbon and the hydrogen peroxide being in a phase selected from (a) a condensed phase; (b) a gas phase; and (c) a combination thereof.6. The process of claim 1 , wherein the catalyst includes silicon (Si) claim 1 , oxygen (O) claim 1 , and at least one modifying metal or modifying metal oxide selected from the group consisting of aluminum (Al) claim 1 , gallium (Ga) claim 1 , iron (Fe) claim 1 , zinc (Zn) ...

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Номер записи: 19
02-01-2014 дата публикации

METHOD FOR CONVERTING METHANE INTO OXYGENATED DERIVATIVES OF ONE CARBON ATOM

Номер: US20140001028A1
Автор: CORMA CANOS Avelino, GARCÍA GÓMEZ Hermenegildo, Sastre Calabuig Francesc
Принадлежит:

Method for converting methane into oxygenated derivates, characterized in that it comprises irradiating a solid surface using UV light with a wavelength of less than 200 nm and in that it takes place on the surface of a solid, preferably a microporous solid, wherein the selectivities achieved are greater than 90% for conversions of about 10%. 1. Method for converting methane , wherein it comprises: irradiating a solid with wavelengths equal to or less than 200 nm and producing a free-radical reaction in a photochemical reactor , forming oxygenated compounds of one carbon atom on the surface of said solid.2. Method according to claim 1 , wherein the photochemical reactor has a deuterium lamp and a magnesium fluoride window.3. Method according to claim 1 , wherein the photochemical reactor has a mercury lamp and a quartz window.4. Method according to claim 1 , wherein the solid used is a mesoporous or microporous aluminosilicate.5. Method according to claim 4 , wherein the solid used is a medium or small pore size zeolite.6. Method according to claim 5 , wherein the zeolite is a zeolite beta with a silicon to aluminum ratio between 10 and infinity.7. Method according to claim 1 , wherein it may be carried out by means of one cycle in two stages:the first stage comprises the photochemical irradiation, in which the methane derivatives are formed both in the gaseous phase and, preferably, inside the solid, andthe second stage comprises the desorption of the oxygenate compounds present in the solid.8. Method according to claim 7 , wherein the second stage is carried out by washing the material with water at 150° C.9. A method according to claim 1 , wherein it is carried out continuously by introducing into the photo-reactor a gas flow claim 1 , which includes methane and oxygen and wherein the exit gases contain methanol and other oxygenated derivatives.10. A method according to claim 9 , wherein it is carried out at a temperature of 80° C.12. Use of a mesoporous or ...

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Номер записи: 20
16-01-2014 дата публикации

CATALYSTS FOR THE CONVERSION OF SYNTHESIS GAS TO ALCOHOLS

Номер: US20140018452A1
Автор: Bardin Billy B., Barton David G., Ferrari Daniela, Gulotty, JR. Robert J., Liu Yu, McAdon Mark H., Millar Dean
Принадлежит: Dow Global Technologies LLC

A catalyst suitable for manufacturing a mixture of alcohols from synthesis gas comprises a combination of nickel, two or more metals selected from ruthenium, palladium, gold, chromium, aluminum and tin, and at least one of an alkali metal or alkaline earth series metal as a promoter. The catalyst may be used in a process for converting synthesis gas wherein the primary product is a mixture of ethanol (EtOH), propanol (PrOH), and butanol (BuOH), optionally in conjunction with higher alcohols. 1. A synthesis gas conversion catalyst comprising:nickel;two or more metals selected from a group consisting of ruthenium, palladium, gold, chromium, aluminum and tin;a promoter comprising at least one of an alkali metal or alkaline earth metal; anda catalyst support selected from a group consisting of silica, alumina, and magnesium oxide, or a mixture thereof.2. The catalyst of claim 1 , wherein the two or more metals comprise palladium and aluminum; or ruthenium and chromium; or gold and aluminum.3. The catalyst of claim 1 , wherein the promoter is cesium.4. The catalyst of claim 3 , wherein the promoter further comprises calcium.5. A process for producing one or more C—Calcohols claim 1 , which method comprises placing synthesis gas in contact with the catalyst of under conditions sufficient to convert at least a portion of the synthesis gas to at least one of ethanol claim 1 , propanol and butanol.6. The process for producing C—Calcohols according to claim 5 , wherein the catalyst is reduced using a reducing agent prior to contact with the synthesis gas.7. The process for producing C—Calcohols according to claim 5 , wherein at least a portion of the synthesis gas is converted to methanol.8. The process for producing C—Calcohols according to claim 5 , wherein at least a portion of the synthesis gas is converted to acetaldehyde.9. The process for producing C—Calcohols according to claim 5 , wherein the conditions include a minimum pressure of 500 psig (3.4 MPa). In various ...

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Номер записи: 21
27-02-2014 дата публикации

PRODUCTION OF OXYGENATES FROM A METHANE CONVERSION PROCESS

Номер: US20140058135A1
Автор: Bricker Jeffery C., Chen John Q., Coughlin Peter K.
Принадлежит:

Methods and systems are provided for converting methane in a feed stream to acetylene. The method includes processing acetylene as an intermediate stream to form a stream having oxygenates. The hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream may be treated to convert acetylene to oxygenates through subsequent reactors. 1. A method for producing aldehydes comprising:introducing a feed stream comprising methane into a supersonic reactor;converting the methane in the supersonic reactor to form a reactor effluent stream comprising acetylene;passing the reactor effluent stream to a hydrogenation reactor at hydrogenation reaction conditions to form a second effluent stream comprising olefins; andpassing the second effluent stream to an aldehyde conversion reactor at aldehyde conversion reaction conditions to form an effluent stream comprising aldehydes.2. The method of further comprising:passing the second effluent stream to an oligomerization reactor to generate an oligomerization effluent stream; andpassing the oligomerization effluent stream to the aldehyde conversion reactor, to generate an effluent stream comprising C4+ aldehydes.3. The method of further comprising passing an oxygen stream comprising oxygen to the aldehyde conversion reactor.4. The method of wherein the aldehyde reaction conditions include an aldehyde conversion catalyst.5. The method of wherein the oxidation catalyst is a metal chloride. (PdCl2 claim 4 , CuCl2).6. The method of further comprising passing a second stream comprising water to the aldehyde conversion reactor.7. The method of wherein the aldehyde conversion reaction conditions include basic reaction conditions over a catalyst.8. The method of wherein in the basic reaction conditions include the addition of an alkali compound.9. The method of wherein the conversion reaction in the supersonic reactor is a pyrolysis reaction.10. A ...

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Номер записи: 22
27-02-2014 дата публикации

PRODUCTION OF BUTANEDIOL FROM A METHANE CONVERSION PROCESS

Номер: US20140058138A1
Автор: Bricker Jeffery C., Chen John Q., Coughlin Peter K.
Принадлежит:

Methods and systems are provided for converting methane in a feed stream to butanediol. The method includes processing acetylene as an intermediate stream to form a hydrocarbon stream including butanediol. A hydrocarbon stream is introduced into a supersonic reactor and pyrolyzed to convert at least a portion of the methane to acetylene. The reactor effluent stream is treated to convert acetylene to another hydrocarbon process. The method according to certain aspects includes controlling the level of carbon monoxide to prevent undesired reactions in downstream processing units. 1. A method for producing butanediol comprising:introducing a feed stream comprising methane into a supersonic reactor;converting the methane in the supersonic reactor to form a reactor effluent stream comprising acetylene;passing the reactor effluent stream and a second stream comprising formaldehyde to a second reactor at second reaction conditions to form a second effluent stream comprising butyne diol; andpassing the second effluent stream to a hydrogenation reactor at hydrogenation reaction conditions to form a butanediol effluent stream.2. The method of further comprising:passing the reactor effluent stream to an acetylene enrichment unit to generate an enriched acetylene stream and a waste stream comprising CO and hydrogen; andpassing the enriched acetylene stream to the second reactor.3. The method of claim 1 , wherein pyrolyzing the methane includes accelerating the hydrocarbon stream to a velocity of between about mach 1.0 and about mach 4.0 and slowing down the hydrocarbon stream to increase the temperature of the hydrocarbon process stream.4. The method of claim 1 , wherein pyrolyzing the methane includes heating the methane to a temperature of between about 1200° C. and about 3500° C. for a residence time of between about 0.5 ms and about 100 ms.5. The method of claim 1 , wherein treating the reactor effluent stream includes removing carbon dioxide to a level below about 1000 wt- ...

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Номер записи: 23
13-03-2014 дата публикации

METHOD FOR PREPARING 2-METHYL-4-PHENYLBUTAN-2-OL

Номер: US20140073819A1
Автор: Rüdenauer Stefan
Принадлежит: BASF SE

For the preparation of 2-methyl-4-phenylbutan-2-ol, a benzylmagnesium halide is reacted with isobutylene oxide. 2-Methyl-4-phenylbutan-2-ol is suitable as a fragrance. 111-. (canceled)12. A method for preparing 2-methyl-4-phenylbutan-2-ol , said method comprising reacting a benzylmagnesium halide with isobutylene oxide.13. The method of claim 12 , wherein the benzylmagnesium halide is benzylmagnesium bromide or benzylmagnesium chloride.14. The method of claim 12 , wherein 0.5 to 5 mol of benzylmagnesium halide is used per mole of isobutylene oxide.15. The method of claim 12 , wherein the reaction is carried out in the presence of at least one Cu(I) compound.16. The method of claim 15 , wherein the Cu(I) compound is copper(I) iodide.17. The method of claim 15 , wherein 0.05 to 0.3 mol of the Cu(I) compound is used per mole of isobutylene oxide.18. The method of claim 12 , wherein the benzylmagnesium halide is obtained by reaction of a benzyl halide with magnesium.19. The method of claim 18 , wherein 1 to 10 mol of magnesium is used per mole of benzyl halide.20. The method of claim 18 , wherein the reaction of the benzyl halide with magnesium and the reaction of the thus formed benzylmagnesium halide with isobutylene oxide take place in the same diluent.21. The method of claim 20 , wherein the diluent is an ether.22. The method of claim 21 , wherein the ether is tetrahydrofuran or 2-methyltetrahydrofuran. This application claims benefit of U.S. Provisional Application Ser. No. 61/697,821, filed Sep. 7, 2012, which is incorporated herein by reference in its entirety.The present invention relates to a method for preparing 2-methyl-4-phenylbutan-2-ol.2-Methyl-4-phenylbutan-2-ol, also referred to as dimethylphenylethylcarbinol or “muguet carbinol”, is a fragrance with a floral aroma which is somewhat verdant and herbal, reminiscent of hyacinths and lilies (WO 2004/076393 A1). 2-Methyl-4-phenylbutan-2-ol is used for improving the aroma and/or flavour of a product or else ...

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Номер записи: 24
27-03-2014 дата публикации

PROCESS OF EPOXIDISING CYCLOHEXANE

Номер: US20140088327A1
Автор: Lin Min, Ru Yingchun, SHI Chunfeng, ZHU Bin
Принадлежит: CHINA PETROLEUM & CHEMICAL CORPORATION

A process of oxidizing cyclohexane, comprising feeding cyclohexane, an aqueous hydrogen peroxide solution and optionally an organic solvent into a reaction zone through a feed inlet thereof under the oxidation reaction conditions for contact, and providing all or most of the oxidation product at the reaction zone bottom, wherein a part or all of the packing in the reaction zone is a titanium silicate molecular sieve-containing catalyst. The process of oxidizing cyclohexane according to the present invention carries out the oxidation in the reaction zone, which, firstly, utilizes the latent heat from reaction sufficiently so as to achieve energy-saving; secondly, increases the yield of target product and the availability of oxidizer; and thirdly, allows the separation of the oxidation product from the raw material cyclohexane as the reaction proceeds, such that the cost for subsequent separations can be saved. 1. A process of oxidizing cyclohexane , comprising feeding cyclohexane , an aqueous hydrogen peroxide solution and optionally an organic solvent into a reaction zone through a feed inlet thereof under the oxidation reaction conditions for contact , and providing all or most of the oxidation product at the reaction zone bottom , wherein a part or all of the packing in the reaction zone is a titanium silicate molecular sieve-containing catalyst , and the organic solvent is one or more of an alcohol , a ketone and an organic carboxylic acid having a boiling point of about 40-about 250 degrees C.; wherein the titanium silicate molecular sieve catalyst is prepared by a process comprising:hydrolyzing an organic silicon compound and an templating agent useful for producing the titanium silicate molecular sieve under hydrolysis conditions to obtain a colloidal solution; then mixing homogeneously the titanium silicate molecular sieve and the colloidal solution to obtain a slurry; and granulating the slurry to obtain the catalyst in the form of microsphere.2. The process ...

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Номер записи: 25
03-02-2022 дата публикации

Chromium-Catalyzed Production of Alcohols From Hydrocarbons

Номер: US20220033332A1
Автор: Carlos A. Cruz, Jared L. BARR, Kathy S. CLEAR, Masud M. Monwar, Max P. McDaniel, William C. Ellis
Принадлежит: Chevron Phillips Chemical Co LP

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of forming a supported chromium catalyst comprising chromium in a hexavalent oxidation state, irradiating the hydrocarbon reactant and the supported chromium catalyst with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound. The supported chromium catalyst can be formed by heat treating a supported chromium precursor, contacting a chromium precursor with a solid support while heat treating, or heat treating a solid support and then contacting a chromium precursor with the solid support.

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Номер записи: 26
19-01-2017 дата публикации

METHANOL PRODUCTION FROM METHANE AND CARBON DIOXIDE

Номер: US20170015611A1
Автор: STAUFFER John E.
Принадлежит:

Carbon dioxide is reacted with methane in a free radical reaction to produce methanol and carbon monoxide. A system for producing carbon dioxide as a feed ingredient for the process through electric power generator is disclosed. 1. A process for the production of methanol and carbon monoxide from methane and carbon dioxide in a single step comprising a free radical reaction conducted at about one atmosphere pressure and at a temperature in the range of 600° C. to 10000° C.2. A process for the production of methanol comprising the steps of:a. mixing carbon dioxide with methane at a temperature of between about 600° C. and 1000° C. in a free radical reaction to produce methanol and carbon monoxide; andb. separating the carbon monoxide from the methanol.3. The process of wherein the reactants carbon dioxide and methane are quenched after high temperature mixing.4. A process for the production of electric powers comprising the steps of:a. driving a turbine by combustion gas to produce flue gases;b. recovering carbon dioxide from flue gases produced in step (a); and{'claim-ref': {'@idref': 'CLM-00003', 'claim 3'}, 'c. using the carbon dioxide in the process of to produce methanol.'} Existing technology relates to a process for the production of methanol wherein carbon dioxide is reacted with methane.Existing technology is capable of producing methanol from methane and carbon dioxide, however it is a long, tedious and expensive undertaking. Multiple reactions are required for which dedicated equipment is needed. Like many organic preparations, conversions are low and repeated separations are involved. At the heart of the process is the generation of synthesis gas with all that such chemistry implies: high pressure, elevated temperatures and finicky catalysts.To illustrate the known procedures for producing methanol, the following equations are helpful.CO+3 H→CHOH+HO   1.CH+HO→CO+3 H  2.Equation no. 1 represents the classical reaction for producing methanol from synthesis ...

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Номер записи: 27
28-01-2016 дата публикации

Production Of Acrylic Acid and Ethanol From Carbonaceous Materials

Номер: US20160023981A1
Автор: Chornet Esteban, Marie-Rose Stephane
Принадлежит:

A process for producing acrylic acid from carbonaceous materials such as biomass. The carbonaceous material, such as biomass, is gasified to produce synthesis gas. The synthesis gas then is subjected to a plurality of reactions to produce acrylic acid. 13-. (canceled)4. A process for producing acrylic acid and ethanol from biomass comprising:(a) contacting said biomass with an oxidizing gas comprising oxygen and steam at a temperature of at least 550° C. and no greater than 800° C., thereby oxidizing said biomass;(b) treating at least a portion of said oxidized biomass produced in step (a) with an oxidizing gas comprising oxygen and steam to heat said oxidized biomass to a temperature which is at least 800° C. and does not exceed a maximum of 850° C.;(c) treating at least a portion of said oxidized biomass produced in step (b) with an oxidizing gas comprising oxygen and steam to heat said oxidized biomass to a temperature from about 800° C. to about 1500° C., thereby producing a crude synthesis gas;(d) purifying the crude synthesis gas to provide a purified synthesis gas;(e) reacting at least a portion of the carbon monoxide from said purified synthesis gas with hydrogen from said purified synthesis gas to provide methanol;(f) reacting said methanol in the presence of a dehydration catalyst to produce dimethyl ether;(g) reacting said dimethyl ether to provide a product comprising propylene and ethylene;(h) reacting said ethylene to produce ethanol; and(i) subjecting said propylene to one or more reaction steps to produce acrylic acid.5. The process of wherein claim 4 , in step (c) claim 4 , said biomass is heated to a temperature of from about 800° C. to about 1 claim 4 ,200° C.6. The process of wherein claim 5 , in step (c) claim 5 , said biomass is heated to a temperature of from about 900° C. to about 1 claim 5 ,100° C.7. The process of wherein claim 6 , in step (c) claim 6 , said biomass is heated to a temperature of from about 925° C. to about 1 claim 6 ,000° C ...

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Номер записи: 28
06-02-2020 дата публикации

SYNTHESIS OF BICYCLO[2.2.2]OCTANES

Номер: US20200039906A1
Автор: Burk Christopher Harlan, Hembre Robert Thomas, Hu Yue Rachel, Tustin Gerald Charles
Принадлежит: EASTMAN CHEMICAL COMPANY

Provided is a process for the preparation of certain 1,4-bicyclo[2.2.2]octane derivatives. The new synthetic procedure involves treating 1,4-dimethylene cyclohexane with an oxidizing agent in the presence of a transition metal catalyst comprising a palladium compound to afford certain oxo-substituted bicyclo[2.2.2]octane species. The process of the invention thus affords a novel and simplified means for the commercial production of a wide variety of bicyclo[2.2.2]octane derivatives. 3. The process of or , wherein R* is hydrogen.4. The process of or , wherein R is methyl.5. The process of any one of or , wherein the palladium compound is selected from palladium acetate , bis(propionyloxy)palladium , bis(butyryloxy)palladium , sodium palladium tetraacetate , sodium palladium tetrachloride , palladium trifluoroacetate , (1 ,2-bis(phenylsulfinyl)ethane)palladium diacetate , aluminum hexachloropalladate(IV) , palladium nitrate , palladium sulfate , palladium chloride , palladium bromide , and palladium iodide.6. The process of any one of or , wherein the palladium compound selected from palladium acetate , palladium chloride , ammonium hexachloropalladate(IV) , sodium palladium tetrachloride , and palladium trifluoroacetate.7. The process of any one of or , wherein the palladium compound is palladium chloride.8. The process of any one of or , wherein the palladium compound is palladium acetate.9. The process of claim any one of or , wherein the palladium compound is immoblized on an organic or inorganic support.10. The process of any one of or , wherein the oxidizing agent is chosen from organic and inorganic peroxides.11. The process of any one of or , wherein the oxidizing agent is hydrogen peroxide.12. The process of any one of or , wherein the oxidizing agent is peracetic acid.13. The process of any one of or , wherein the oxidizing agent selected from oxygen and oxygen-containing gases.14. The process of any one of or , wherein the oxidizing agent is oxygen or air. ...

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Номер записи: 29
18-02-2016 дата публикации

METHOD FOR PRODUCING 2,7-OCTADIEN-1-OL

Номер: US20160046549A1
Автор: TSUJI Tomoaki, YOSHIKAWA Tatsuya
Принадлежит: KURARAY CO., LTD.

Provided is a simple and industrially advantageous method for producing 2,7-octadien-1-ol, in which an expensive palladium catalyst is recovered in high efficiency and the reaction rate per atom of palladium is enhanced. Specifically, provided is a method for producing 2,7-octadien-1-ol by subjecting butadiene and water to a telomerization in the presence of a palladium catalyst containing a water-soluble triarylphosphine having two or more sulfonate groups in the molecule and a palladium compound, a tertiary amine, and carbon dioxide, including a step of mixing the telomerization solution obtained by the telomerization with an organic solvent having a dielectric constant at 25° C. of 2 to 18, followed by carrying out phase separation in the presence of carbon dioxide, thereby obtaining 2,7-octadien-1-ol from an organic phase while recovering an aqueous phase including the palladium catalyst. By this production method, the selectivity for 2,7-octadien-1-ol is enhanced. 1. A method for producing 2 ,7-octadien-1-ol comprising:subjecting butadiene and water to a telomerization in the presence of a palladium catalyst, a tertiary amine and carbon dioxide, the palladium catalyst comprising a water-soluble triarylphosphine and a palladium compound, the water-soluble triarylphosphine comprising two or more sulfonate groups;mixing a telomerization solution obtained by the telomerization with an organic solvent having a dielectric constant of 2 to 18 at 25° C. to form a liquid having an aqueous phase and an organic phase; andcarrying out phase separation of the liquid in the presence of carbon dioxide by recovering the 2,7-octadien-1-ol from the organic phase while retaining the palladium catalyst in the aqueous phase.3. The method according to claim 2 , wherein:{'sup': 1', '3', '5', '7', '8', '9, 'R, R, R, R, R, and Reach independently represent a hydrogen atom, a methyl group, or a methoxy group;'}{'sup': 2', '4', '6, 'R, R, and Rare a hydrogen atom;'}M's each independently ...

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Номер записи: 30
15-02-2018 дата публикации

Modifying Cementitious Compositions Using Ketone Alcohol Oil Waste

Номер: US20180044240A1
Автор: Byong-Wa Chun, Felek Jachimowicz, Hua Zhong, Shuqiang Zhang, Yin-Zar HNIN
Принадлежит: GCP Applied Technologies Inc

The present invention relates to modification of hydratable cement and cementitious materials, such as mortar cement and masonry or ready-mix concrete using ketone alcohol oil waste (“KAOW”) material, obtained as an alkali-soluble liquor waste byproduct at a certain stage in the commercial production of cyclohexanol and cyclohexanone. Preferred applications for KAOW are in chemical admixture formulations whereby KAOW is used to substitute for a portion of a cement dispersant such as sodium lignosulfonate, sodium gluconate, or other conventional dispersant. Another preferred use is in mortar cement and masonry concrete units such as blocks, pavers, curbstones, and other concrete masonry units wherein air void systems advantageously foster freeze-thaw durability.

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Номер записи: 31
03-03-2022 дата публикации

METHOD FOR MANUFACTURING CYCLODODECANONE

Номер: US20220064094A1
Автор: KIM Jiyeon, PARK Jeongseok, Park Jinho, SONG Kyuho
Принадлежит:

The present invention relates to a method of preparing cyclododecanone. According to the present invention, a method of preparing cyclododecanone which allows implementation of a high conversion rate and minimization of production of unreacted materials and reaction by-products may be provided. In addition, the present invention implements a high conversion rate and a high selectivity even by a simplified process configuration, and thus may be usefully utilized in an economical method of preparing laurolactam, allowing commercially easy mass production.

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Номер записи: 32
03-03-2022 дата публикации

PROCESS FOR PRODUCTION OF USEFUL HYDROCARBON MATERIALS FROM PLASTIC WASTE AND REACTION SYSTEM THEREFOR

Номер: US20220064540A1
Автор: Hemmings John William
Принадлежит:

A process for production of useful hydrocarbon materials from plastic waste and reaction system therefor is provided. The process includes frequentatively thermolyzing of high molecular weight hydrocarbons such as plastic waste to produce useful medium molecular weight hydrocarbons and low molecular weight hydrocarbons. The process utilizes low molecular weight hydrocarbons as solution reactants which helps in reducing the viscosity of the material for more effective heat transfer. The process also includes addition of one or more low molecular weight olefins and solution reactants to high molecular weight hydrocarbons to augment the free radical environment. The process also includes hydrogenating and oxidizing the high molecular weight hydrocarbons. The process enables production of the useful, predominantly hydrocarbon materials such as waxes, lube oil base-stocks, refinery feedstocks, intermediates or fuel additives. The present invention also provides a reaction system comprising thermolysis reactor including a primary zone and an optional secondary zone for production of useful hydrocarbon materials from plastic waste. 1. A reaction system , comprisingat least one surge hopper adapted to receive high molecular weight hydrocarbons, wherein the high molecular weight hydrocarbons being selected from a group consisting shredded waste plastic and un-shredded waste plastic; wherein the melter is adapted to mix the high molecular weight hydrocarbons and the lower molecular weight hydrocarbons, via mixing means, to obtain a uniform mixture representative of low viscosity dissolved polymer phase, and heat the uniform mixture to yield a molten state, and', 'wherein the melter comprises one or more openings to receive at least one of low molecular weight hydrocarbons as solution reactant and heavy wax, and one or more openings to release dissolved hydrocarbon gases including light naphtha range material, and a molten uniform mixture of the high molecular weight ...

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Номер записи: 33
22-02-2018 дата публикации

OPEN-FLASK HYDROBORATION AND THE USE THEREOF

Номер: US20180050972A1
Автор: Drolet Michael Patrick, Kulkarni Ameya Sanjay, Ramachandran P Veeraraghavan
Принадлежит: PURDUE RESEARCH FOUNDATION

The present disclosure generally relates to a process for hydroboration of an alkene or alkyne using ammonia borane (AB). In particular, the present invention relates to hydroboration of an alkene or alkyne in the presence of air or moisture, and a clean process for facile preparation of an alcohol by oxidizing the organoborane so formed with hydrogen peroxide. The products, including aminodialkylboranes, ammonia trialkylborane complexes, as well as various alcohols so prepared, are within the scope of this disclosure. 1. A process for hydroboration of an alkene or alkyne , comprising the steps ofa. preparing a solution of an ammonia borane (AB);b. adding an alkene or alkyne to said AB solution; andc. refluxing with heating and stirring to afford an organoborane, wherein the effectiveness of this process is not affected by the presence of air or moisture.2. The process of claim 1 , wherein the solution of an ammonia borane is prepared using an ethereal solvent.3. The process of claim 2 , wherein said ethereal solvent is THF (tetrahydrofuran).4. The process of claim 1 , wherein the solution of an ammonia borane in THF has a concentration of about 0.5˜2 M (moles/liter).5. The process of claim 1 , wherein said refluxing is performed at about 90° C.6. The process of claim 1 , wherein said alkene or alkyne is part of an aromatic molecule claim 1 , an aliphatic molecule claim 1 , or a combination thereof.7. The process of claim 1 , wherein said alkene or alkyne is part of a cyclic structure claim 1 , a linear structure claim 1 , or a combination thereof.8. The process of claim 1 , wherein the molar ratio of said AB to said alkene or alkyne ranges from about 2 to about 0.2.9. An aminodialkylborane or ammonia-trialkylborane complex prepared according to the process ofa. preparing a solution of an ammonia borane (AB);b. adding an alkene or alkyne to said AB solution; andc. refluxing with heating and stirring to afford an organoborane, wherein the effectiveness of this ...

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Номер записи: 34
03-03-2016 дата публикации

Cycloalkane oxidation catalysts and method to produce alcohols and ketones

Номер: US20160060199A1
Автор: Floryan Decampo, Wenjuan Zhou
Принадлежит: ECOLE NORMALE SUPERIEURE DE LYON, Rhodia Operations SAS

The present invention concerns a method of oxidizing a cycloalkane to form a product mixture containing a corresponding alcohol and ketone, said method comprising contacting a cycloalkane with an oxidant agent in the presence of catalytic effective amount of metal triflates or metal triflmidates catalysts.

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Номер записи: 35
03-03-2016 дата публикации

Tetrapeptide Copper Catalysts Capable Of Oxidizing Hydrocarbons At Room Temperature

Номер: US20160060292A1
Автор: NICHOLAS-LEWIS Latisha Candice, SINGH Gurdial
Принадлежит:

The present invention relates to peptide copper catalysts capable of oxidizing hydrocarbons at room temperature. 1. A catalyst containing a copper metal and peptide , wherein the peptide is a tetrapeptide or pentapeptide is capable of catalytic oxidation of a hydrocarbon.2. The catalyst in claim 1 , wherein the peptide is a tetrapeptide.3. The catalyst in claim 1 , wherein the tetrapeptide is a straight chain tetrapeptide comprising four amino acids.4. The catalyst in claim 3 , wherein the straight chain tetrapeptide comprises four amino acids selected from the group consisting of Alanine claim 3 , Aspartate claim 3 , Glutamate claim 3 , Glycine claim 3 , Histidine claim 3 , Methionine and Tryptophan.5. The catalyst in claim 3 , wherein the straight chain tetrapeptide comprises four amino acids selected from the group consisting of Alanine claim 3 , Aspartate claim 3 , Glutamate claim 3 , Histidine claim 3 , Methionine and Tryptophan.6. The catalyst in claim 5 , wherein the straight chain tetrapeptide comprises four amino acids selected from the group consisting of Alanine claim 5 , Glutamate and Histidine.7. The catalyst in claim 5 , wherein the straight chain tetrapeptide comprises four amino acids selected from the group consisting of Alanine claim 5 , Aspartate claim 5 , Methionine and Tryptophan.8. The catalyst in claim 3 , wherein the straight chain tetrapeptide comprises four amino acids having at least Glutamate and Histidine.9. The catalyst in claim 3 , wherein the peptide is selected from any one of the following straight chain tetrapeptides having a peptide sequence comprising: AlaHisAlaGlu; AlaMetAspTrp; AlaHisGlyGlu; AlaHisHisHis; GlyHisHisHis; GluHisAspHis; HisMetAspTrp; and AspHisAspHis.10. The catalyst in claim 3 , wherein the peptide is selected from any one of the following straight chain tetrapeptides having a peptide sequence comprising: AlaHisAlaGlu; and AlaMetAspTrp.11. A method for catalytic oxidation of a hydrocarbon using a catalyst ...

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Номер записи: 36
05-03-2015 дата публикации

METAL OXIDE-ORGANIC HYBRID MATERIALS FOR HETEROGENEOUS CATALYSIS AND METHODS OF MAKING AND USING THEREOF

Номер: US20150065339A1
Автор: Anastas Paul T., Bloomfield Aaron J., Collom Samuel L., Crabtree Robert H., Sheehan Stafford W.
Принадлежит:

Catalysts prepared from abundant, cost effective metals, such as cobalt, nickel, chromium, manganese, iron, and copper, and containing one or more neutrally charged ligands (e.g., monodentate, bidentate, and/or polydentate ligands) and methods of making and using thereof are described herein. Exemplary ligands include, but are not limited to, phosphine ligands, nitrogen-based ligands, sulfur-based ligands, and/or arsenic-based ligands. In some embodiments, the catalyst is a cobalt-based catalyst or a nickel-based catalyst. The catalysts described herein are stable and active at neutral pH and in a wide range of buffers that are both weak and strong proton acceptors. While its activity is slightly lower than state of the art cobalt-based water oxidation catalysts under some conditions, it is capable of sustaining electrolysis at high applied potentials without a significant degradation in catalytic current. This enhanced robustness gives it an advantage in industrial and large-scale water electrolysis schemes. 1. A heterogeneous catalyst having the chemical formula{'br': None, 'sub': a', 'b', 'c', 'd', '2', 'e, 'MY(CO)O(OH)(HO)'} M is a d-block transition metal;', 'Y is a monodentate ligand, bidentate ligand, polydentate ligand, or combinations thereof;', 'a is any value from about 0 to about 3;', 'b is any value from about 0 to about 3;', 'c is any value from about 1 to about 4; and', 'd is any value from about 0 to about 4; and', 'e is any value from about 0 to about 6., 'wherein'}2. The catalyst of claim 1 , wherein M is selected from the group consisting of Cr claim 1 , Mn claim 1 , Fe claim 1 , Co claim 1 , Ni claim 1 , Cu claim 1 , Rh claim 1 , Ir claim 1 , or combinations thereof.3. The catalyst of claim 1 , wherein M is cobalt.4. The catalyst of claim 1 , wherein M is nickel.5. The catalyst of claim 1 , wherein the M is chromium.6. The catalyst of claim 1 , wherein the M is copper.7. The catalyst claim 1 , wherein the M is iron.8. The catalyst of claim 1 , ...

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Номер записи: 37
03-03-2016 дата публикации

CATALYST AND METHOD FOR THE ELECTROCHEMICAL OXIDATION OF METHANE

Номер: US20160064743A1
Автор: LU YU-WEI
Принадлежит:

The invention relates to a catalyst, to the use thereof for the electrochemical conversion of methane to methanol and for the direct electrochemical conversion of methane to CO. The invention also relates to an electrode, in particular for a fuel cell including such a catalyst, as well as to a method for manufacturing such an electrode. The invention further relates to a fuel cell including the catalyst or the electrode. The catalyst according to the invention includes a platinum precursor (II), and optionally a metal-ion precursor M supported by particles of a heteropolyanion (HPA). The invention can be used in particular in the field of the electrochemical oxidation of methane into methanol or CO. 1. A process for converting methane to methanol comprising a step of contacting methane with a catalyst comprising a platinum(II) precursor and optionally a precursor of metal ion(s) M which is (are) supported on particles of a heteropolyanion HPA , in which: [{'sup': +', '2+', '2+', '2+', '2+, 'M is a metal ion chosen from Ag, Ru, Ni, Co, Fe and the mixtures of two or more of these,'}, {'sub': 4', '12', '40', '6', '2', '18', '62, 'the heteropolyanion HPA is chosen from HSiWOand KPWO,'}], 'the platinum(II) precursor is a platinum precursor having an oxidation state of II which is optionally complexed by an organic or inorganic ligand,'}at a temperature between 15 and 80° C.2. The process of claim 1 , wherein the catalyst comprises at least one ion(s) metal M.4. The process as claimed in claim 1 , wherein the platinum(II) precursor claim 1 , in the catalyst claim 1 , is (Bipy)PtClor Pt(NH)Cl.5. The process as claimed in claim 1 , wherein the precursor of metal ion(s) claim 1 , in the catalyst claim 1 , is an Ag precursor.6. The process as claimed in claim 1 , wherein the heteropolyanion HPA claim 1 , in the catalyst claim 1 , is KPWO.7. A process for converting methane to COcomprising a step of contacting methane with a catalyst comprising a platinum (II) precursor and ...

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Номер записи: 38
27-02-2020 дата публикации

PROCESS FOR PREPARING POROUS IRON OXIDE-ZIRCONIA COMPOSITE CATALYST, POROUS IRON OXIDE-ZIRCONIA COMPOSITE CATALYST PREPARED THEREBY, AND METHOD FOR PRODUCING ALCOHOL USING THE CATALYST

Номер: US20200061586A1
Автор: LEE Jae Hyun, MOON Jun Hyuk
Принадлежит:

The present invention relates to a porous iron oxide-zirconia composite catalyst, a preparation method thereof, and a method for producing alcohol using the same, and the iron oxide-zirconia composite catalyst having a porous structure may produce alcohol at low cost by carrying out an excellent methane reforming reaction even under room temperature and room pressure conditions through an electrochemical reaction. 1. A method for preparing a porous iron oxide-zirconia composite catalyst , the method including:impregnating a polymer template mold with a precursor mixture of iron oxide precursor and a zirconia precursor;drying the polymer template mold impregnated with the precursor mixture; andsintering the dried polymer template mold.2. The method of claim 1 ,wherein the iron oxide precursor is one or more selected from the group consisting of iron (III) nitrate, iron (III) chlorate, and iron (III) sulfate.3. The method of claim 1 ,wherein the zirconia precursor is one or more selected from the group consisting of zirconium oxynitrate, zirconium nitrate, and zirconium sulfate.4. The method of claim 1 ,wherein the iron oxide precursor and the zirconia precursor are mixed at a molar ratio of 8:1 to 2:1.5. The method of claim 1 ,wherein the polymer template mold includes a spherical polymer arranged in a face centered cubic (fcc) structure.6. The method of claim 1 ,wherein the polymer template mold is manufactured by a method including emulsion polymerization of monomers, followed by drying step.7. The method of claim 1 ,wherein the polymer template mold includes one or more polymers selected from the group consisting of poly(methyl methacrylate) [PMMA], poly(butyl methacrylate) [PBMA], poly(methyl methacrylate)(butyl methacrylate), poly(hydroxyethyl methacrylate) [PHEMA], and polystyrene.8. A porous iron oxide-zirconia composite catalyst manufactured by a method comprising:impregnating a polymer template mold with a precursor mixture of iron oxide precursor and a ...

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Номер записи: 39
08-03-2018 дата публикации

CHAIN MULTIYNE COMPOUND, PREPARATION METHOD AND APPLICATION THEREOF

Номер: US20180065908A1
Автор: CHEN Zhixin, HE Xumin, Lin Jianfeng, SHAO Yifan, XIA Haiping, ZHANG Hong, ZHOU Xiaoxi, ZHUO Qingde
Принадлежит:

The present invention relates to fields of organic chemistry and organometallic chemistry. The present invention discloses a chain multiyne compound, a preparation method thereof and an application in synthesizing a fused-ring metallacyclic compound. A structure of the chain multiyne compound in the present invention is shown as Formula I below. The present invention also provides a preparation method of the chain multiyne compound and an application thereof in a synthesis of a fused-ring metallacyclic compound. The chain multiyne compound disclosed in the present invention has multiple functional groups and the structure of the chain multiyne compound is adjustable. The chain multiyne compound can also be used to synthesize the fused-ring metallacyclic compound efficiently. The preparation method of the chain multiyne compound disclosed in the present invention is simple, which can be used to prepare the chain multiyne compound rapidly and efficiently. 5. The preparation method of the chain multiyne compound according to claim 4 , characterized in that the preparation method 1 also comprises using a deprotection agent to take off the protection group Y from the obtained chain multiyne compound with a protection group Y of Formula IV; wherein the deprotection agent is at least any one of KCO claim 4 , NaCO claim 4 , CsCO claim 4 , KF claim 4 , (n-Bu)NF (tetrabutylammonium fluoride) claim 4 , (Et)NF (tetraethylammonium fluoride) claim 4 , (Me)NF (tetramethylammonium fluoride) and (n-Pr)NF (tetrapropylammonium fluoride).6. The preparation method of the chain multiyne compound according to claim 5 , characterized in that before the deprotection agent takes off the protection group Y from the obtained chain multiyne compound with a protection group Y of Formula IV claim 5 , quenching and purifying processes are performed on the reaction mixture of step a.7. The preparation method of the chain multiyne compound according to claim 5 , characterized in that after the ...

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Номер записи: 40
29-05-2014 дата публикации

Process for Preparing C4-Oxygenates

Номер: US20140148619A1
Автор: Ebel Klaus, PORTA GARCIA Marta, Rüdenauer Stefan
Принадлежит: BASF SE

Preparation of C-oxygenates, in particular 2-butanol and butanone, which comprises the reaction of ethene with ethanol to form 2-butanol under conditions under which ethanol is present in the supercritical state. 1. A process for preparing C-oxygenates , which comprises the reaction of ethene with ethanol to form 2-butanol under conditions under which ethanol is present in the supercritical state.2. The process according to claim 1 , wherein ethanol is placed in a pressure-rated vessel claim 1 , ethene is introduced and the mixture is heated under autogenous pressure.3. The process according to claim wherein the ethene and the ethanol are used in a molar ratio in the range from 1:2 to 1:200.4. The process according to claim 1 , wherein the reaction of ethene with ethanol takes place at a temperature in the range from 241° C. to 500° C.5. The process according to claim 1 , wherein the reaction of ethene with ethanol takes places at a pressure in the range from 6.3 MPa to 50 MPa.6. The process according to claim 1 , wherein the reaction of ethene with ethanol takes place without addition of a free-radical initiator.7. The process according to claim 1 , which further comprises dehydrogenation of the 2-butanol to form butanone. The present invention relates to a process for preparing C4-oxygenates, in particular 2-butanol and butanone, from ethane and ethanol.Butanone, also referred to as methyl ethyl ketone or MEK, is, apart from acetone, the most important industrially produced ketone and is used as solvent in many fields. Butanone can be obtained by direct oxidation of n-butene, e.g. by the Wacker process, or as by-product from the preparation of phenol from benzene. However, the predominant proportion by far (88%) of butanone is prepared by catalytic dehydrogenation of 2-butanol. This very economical process gives high yields and displays a long life of the catalyst used, simple isolation of the product and low energy consumption. The 2-butanol used for the ...

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Номер записи: 41
15-03-2018 дата публикации

Method for the Conversion of Abienol to Sclarediol

Номер: US20180072644A1
Автор: Schröder Fridtjof
Принадлежит:

A method of selective conversion of Abienol, represented by formula 1, to Sclareodiol, represented by formula 2 2. The method of wherein the ozonolysis is carried out at a temperature above −20° C.3. The method of wherein the ozonolysis and/or the reduction takes place in a flow reactor.4. The method of claim 1 , wherein the ozonolysis and/or reduction takes place in a non-halogenated solvent or a mixture of non-halogenated solvents.5. The method of wherein the non-halogenated solvent is an alcoholic solvent comprising one or more —OH moieties.6. The method of wherein the non-halogenated solvent is ethanol.7. The method of wherein the ozonolysis takes place in a solvent claim 1 , and the reduction takes place in the same solvent.8. The method of claim 1 , wherein a borohydride reducing agent is used in the reduction.9. The method of wherein NaBH4 is used as reducing agent in a concentration of 0.5-5 mol equiv.12. The method of claim 11 , wherein the compound of formula 1 is protected on the OH-function and yields the corresponding compound of formula 2 protected on the OH-function.13. The method of claim 12 , wherein the compound of formula 2 protected on the OH-function is directly cyclized to the compound of formula 3.14. The method of claim 12 , wherein the compound of formula 2 protected on the OH-function claim 12 , is deprotected and subsequently cyclized to the compound of formula 3. This invention relates generally to methods of preparing perfumery raw materials and to key intermediates used in, or prepared during such methods. In particular, this invention relates to a novel method for the preparation of (−)-Sclareodiol 2a (R=H) or a Sclareodiol derivative 2 from Z-(+)-Abienol 1a (R=H, R′=—CH═CH) or an Abienol derivative 1. (−)-Sclareodiol 2a is an important intermediate that can be further cyclized to the compound of formula 3, also known as (−)-Ambrox® ((3aR,5aS,9aS,9bR)-3a,6,6,9a-tetra methyldodecahydro-naphtho[2,1-b]furan), an important base note in ...

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Номер записи: 42
19-03-2015 дата публикации

METHOD FOR PRODUCING MODIFIED-GRAPHENE-LIKE CARBON MATERIAL, MODIFIED-GRAPHENE-LIKE CARBON MATERIAL, AND RESIN COMPOSITE MATERIAL CONTAINING MODIFIED-GRAPHENE-LIKE CARBON MATERIAL

Номер: US20150080513A1
Автор: Tsubokawa Norio, WADA Takuya
Принадлежит:

Providing a modified-graphene-like carbon material into which hydroxyl groups are introduced. By reacting a graphene-like carbon material with hydrogen peroxide, a hydroxyl group is introduced into the graphene-like carbon material. 1. A method for producing a modified-graphene-like carbon material , wherein , by reacting a graphene-like carbon material with hydrogen peroxide , a hydroxyl group is introduced into the graphene-like carbon material.2. The method for producing a modified-graphene-like carbon material according to claim 1 , wherein the introduction of the hydroxyl group into the graphene-like carbon material is performed in the presence of an iron catalyst.3. A modified-graphene-like carbon material obtained by the method according to .4. A modified-graphene-like carbon material claim 1 , wherein an amount of a hydroxyl group as measured by a quantitative method using 2 claim 1 ,2′-diphenyl-1-picrylhydrazyl is 0.3 mmol/g to 10.0 mmol/g.5. The modified-graphene-like carbon material according to claim 4 , wherein an amount of a carboxyl group as measured by a quantitative method using NaHCOis 1.0 mmol/g or less.6. A resin composite material obtained by dispersing the modified-graphene-like carbon material according to in a resin.7. A modified-graphene-like carbon material obtained by the method according to .8. A resin composite material obtained by dispersing the modified-graphene-like carbon material according to in a resin. The present invention relates to a method for producing a modified-graphene-like carbon material into which a hydroxyl group is introduced, a modified-graphene-like carbon material, and a resin composite material containing a modified-graphene-like carbon material.Graphite is a laminated body formed by laminating exfoliated graphite. By peeling graphite, a graphene-like carbon material such as exfoliated graphite having the number of lamination smaller than graphite, graphene or the like is obtained. Since the graphene-like carbon ...

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Номер записи: 43
12-06-2014 дата публикации

PROCESS FOR THE PREPARATION OF CYCLOHEXYL-SUBSTITUTED TERTIARY ALKANOLS

Номер: US20140163117A1
Автор: Bock Martin, Ebel Klaus, PELZER Ralf, Rüdenauer Stefan
Принадлежит: BASF SE

The present invention relates to processes for the preparation of compounds of the formula (Ia) 115-. (canceled)17. The process according to claim 16 , wherein Rand R claim 16 , independently of one another claim 16 , are selected from the group consisting of C-alkyl claim 16 , C-cycloalkyl and C-cycloalkylalkyl.18. The process according to claim 16 , wherein the reaction in step a) takes place under conditions under which the compound of the formula (II) is present in the supercritical state.20. The process according to claim 16 , wherein the reaction in step a) takes place at a temperature in the range from 250 to 500° C. and a pressure in the range from 5 to 50 MPa.21. The process according to claim 16 , wherein the molar ratio of the styrene used in step a) to the compound of the formula (II) used in step a) is in the range from 1:5 to 1:200.22. The process according to claim 16 , wherein the catalyst used in step b) comprises at least one active metal selected from the group consisting of palladium claim 16 , platinum claim 16 , cobalt claim 16 , nickel claim 16 , rhodium claim 16 , iridium and ruthenium.23. The process according to claim 21 , wherein the catalyst used in step b) comprises ruthenium as active metal.24. The process according to claim 21 , wherein the catalyst used in step b) comprises at least one further active metal of sub-groups IB claim 21 , VIIB or VIIIB of the Periodic Table (CAS version).25. The process according to claim 16 , wherein step b) is carried out in trickle mode.26. The process according to claim 16 , wherein Ris methyl and Ris ethyl.28. The compound according to claim 27 , wherein Rand R claim 27 , independently of one another claim 27 , are selected from the group consisting of C-alkyl claim 27 , C-cycloalkyl and C-cycloalkylalkyl.30. The compound according to claim 29 , wherein Rand R claim 29 , independently of one another claim 29 , are selected from the group consisting of C-alkyl claim 29 , C-cycloalkyl and C- ...

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Номер записи: 44
12-03-2020 дата публикации

Hydrocarbon Oxidation

Номер: US20200079711A1
Автор: Graham HUTCHINGS, Nishtha Agarwal, Simon FREAKLEY, Stuart Taylor
Принадлежит: University College Cardiff Consultants Ltd

A method of direct oxidation of a hydrocarbon to produce an oxygenated reaction product, wherein said method comprises contacting a peroxide and oxygen and the hydrocarbon with a suspension of catalyst particles dispersed in a liquid reaction medium, wherein the catalyst particles are unsupported and comprise at least one transition metal.

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Номер записи: 45
19-06-2014 дата публикации

METHOD OF OXIDIZING AN ORGANIC COMPOUND

Номер: US20140171689A1
Автор: Gautam Ujjal Kam, Lingampalli Srinivasa Rao, Rao Chintamani Nagesa Ramachandra
Принадлежит: JAWAHARLAL NEHRU CENTRE FOR ADVANCED SCIENTIFIC RESEARCH

The disclosure relates to a method of oxidation of an aliphatic C—H bond in an organic compound using CdOor ZnOnanoparticles as oxidizing agents. The instant disclosure relates to a method of oxidizing toluene using metal peroxide nanoparticles such as CdO, ZnOas oxidizing agents to obtain oxidized products predominantly comprising benzaldehyde. 1. A method of oxidizing an aliphatic C—H bond in an organic compound , said method comprising acts of mixing the organic compound with metal peroxide nanoparticle selected from group comprising cadmium peroxide or zinc peroxide to obtain reaction mixture; and heating the reaction mixture to obtain oxidized product.2. A method of using metal peroxide nanoparticle selected from group comprising CdOor ZnO , for oxidizing an aliphatic C—H bond in an organic compound to obtain oxidized product.3. The method as claimed in and , wherein the organic compound has atleast one methyl group and is selected from group comprising aromatic compound and aliphatic compound.4. The method as claimed in and , wherein the organic compound is selected from group comprising toluene , cyclohexane and n-hexane , preferably toluene.5. The method as claimed in and , wherein the metal peroxide nanoparticle is optionally doped with nickel.6. The method as claimed in and , wherein the organic compound is at volume ranging from about 5 ml to about 18 ml , preferably about 15 ml; the metal peroxide nanoparticle is at amount ranging from about 200 mg to about 500 mg , preferably about 300 mg for zinc peroxide and about 440 mg for cadmium peroxide; and the metal peroxide nanoparticle has diameter ranging from about 5 nm to about 10 nm.7. The method as claimed in and , wherein the heating is carried out at temperature ranging from about 140° C. to about 200° C. , preferably about 160° C. to about 180° C. , for time duration ranging from about 1 h to about 15 h , preferably about 4 h to about 12 h.8. The method as claimed in and , wherein the oxidized product ...

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Номер записи: 46
09-04-2015 дата публикации

Molecular Catalysts Capable of Catalyzing Oxidation of Hydrocarbons and Method for Oxidizing Hydrocarbons

Номер: US20150099876A1
Автор: Chih-Cheng Liu, Chung-Yuan Mou, Penumaka NAGABABU, Ping-Yu Chen, Ravirala RAMU, Sheng-Fa Yu, Suman MAJI, Sunney Ignatius CHAN
Принадлежит: Academia Sinica, National Taiwan University NTU

This invention relates to molecular catalysts and chemical reactions utilizing the same, and particularly to molecular catalysts for efficient catalytic oxidation of hydrocarbons, such as hydrocarbons from natural gas. The molecular catalytic platform provided herein is capable of the facile oxidation of hydrocarbons, for example, under ambient conditions such as near room temperature and atmospheric pressure.

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Номер записи: 47
26-06-2014 дата публикации

Plasma arc furnace and applications

Номер: US20140179959A1
Автор: Martin A. Stuart, Stephen L. Cunningham
Принадлежит: Individual

A Plasma Arc Reformer for creating a useful fuel, such as Methanol, using any of Methane, Municipal Solid Waste, farm or forest waste, coal orchar rock from oil shale production, petrochemical hydrocarbons, (any carbon containing charge), water, and/or Municipal Sewage, as the source material. A High temperature Plasma Arc de-polymerizes the source material into atoms which, upon partial cooling, creates a gas stream rich in CO and H 2 (syngas). Subsequent molecular filter and catalyst stages in the system remove contaminants and produce the output fuel. The system is closed loop with regard to the syngas production in that it recycles the residual unconverted gas and even the exhaust gases if desired. The large amount of heat produced is captured and converted to electric power using a supercritical CO 2 Rankin cycle resulting in potentially high efficiencies.

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Номер записи: 48
12-04-2018 дата публикации

METHOD FOR REACTING FLOWING LIQUID AND GAS IN A PLASMA DISCHARGE REACTOR

Номер: US20180099258A1
Автор: Alabugin Igor, Bresch Stefan, Hsieh Kevin, LOCKE Bruce R., WANDELL Robert
Принадлежит:

The activation of the C—H bond using low temperature plasma with an inlet liquid stream such that value added products are formed effectively. An organic liquid (e.g., hexane which is immiscible with liquid water) is injected into a flowing gas (argon) stream followed by mixing with a liquid water stream. Thereafter, the mixture contacts a plasma region formed by a pulsed electric discharge. The plasma formed with the flowing liquid and gas between the two electrodes causes chemical reactions that generate various compounds. 132.-. (canceled)33. A reactor comprising:a body portion having one or more internal walls that define an internal cavity, at least one electrically-conductive inlet capillary having an inlet capillary body extending between a fluid-receiving tip and a fluid-injecting tip, wherein the fluid-receiving tip is positioned outside the internal cavity, and wherein the fluid-injecting tip is positioned inside the internal cavity;at least one electrically-conductive outlet capillary having an outlet capillary body extending between a fluid-collecting tip and a fluid-ejecting tip, wherein the fluid-collecting tip is positioned inside the internal cavity, and wherein the fluid-ejecting tip is positioned outside the internal cavity; anda power source, supplying a voltage across the at least one electrically-conductive inlet capillary and the at least one electrically-conductive outlet capillary,wherein the fluid injecting tip is disposed relative to the fluid collecting tip to generate a flowing liquid film region on the one or more internal walls and a gas stream flowing through the flowing liquid film region, when a fluid is injected into the internal cavity via the at least one electrically conductive inlet capillary;wherein the fluid injecting tip is disposed relative to the fluid collecting tip to propagate a plasma discharge along the flowing liquid film region between the at least one electrically-conductive inlet capillary and the at least one ...

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Номер записи: 49
26-03-2020 дата публикации

PROCESS FOR OXIDATION OF A LOWER ALKANE AT LOW TEMPERATURES IN AMMONIA-CONTAINING GAS MIXTURES

Номер: US20200095182A1
Автор: Beato Pablo, Janssens Ton V.W.
Принадлежит: Haldor Topsoe A/S

In a process for the oxidation of a lower alkane, such as methane, over a catalyst containing Cu and one or more zeolite or zeotype materials, the oxidation is conducted in the presence of ammonia in the feed gas at a process temperature below 350° C. The oxidation can be performed in a continuous process. 1. A process for the oxidation of a lower alkane over a catalyst containing Cu and one or more zeolite or zeotype materials , wherein the oxidation is conducted in the presence of ammonia in the feed gas at a process temperature below 350° C.2. Process according to claim 1 , wherein a zeolite or zeotype material is mixed with an oxide of Cu.3. Process according to claim 1 , in which the oxidation is performed in a continuous process.4. Process according to claim 1 , wherein the lower alkane is methane.5. Process according to claim 1 , wherein the reaction product is methanol.6. Process according to claim 1 , wherein the zeotype is a silico-alumino phosphate material.7. Process according to claim 1 , wherein the content of ammonia in the feed gas is between 1 and 5000 ppmv.8. Process according to claim 1 , wherein the content of oxygen in the feed gas is 10 vol % or lower.9. Process according to claim 1 , wherein the content of water in the feed gas is 10 vol % or lower.10. Process according to claim 1 , wherein the process temperature is 250° C. or lower.11. Process according to wherein one or more zeolite or zeotype materials in the catalyst have structures selected from the group consisting of AEI claim 1 , AFX claim 1 , CHA claim 1 , KFI claim 1 , ERI claim 1 , GME claim 1 , LTA claim 1 , IMF claim 1 , ITH claim 1 , MEL claim 1 , MFI claim 1 , SZR claim 1 , TUN claim 1 , *BEA claim 1 , BEC claim 1 , FAU claim 1 , FER claim 1 , MOR and LEV.12. Process according to claim 11 , wherein the Cu-zeolite catalyst is selected from the group consisting of Cu-CHA claim 11 , Cu-MOR claim 11 , Cu-MFI claim 11 , Cu-BEA claim 11 , Cu-ZSM-5 and Cu-FER.13. Process according to ...

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Номер записи: 50
26-03-2020 дата публикации

PROCESS FOR OXIDATION OF A LOWER ALKENE AT LOW TEMPERATURES IN AMMONIA-CONTAINING GAS MIXTURES

Номер: US20200095216A1
Автор: Beato Pablo, Janssens Ton V.W.
Принадлежит: Haldor Topsoe A/S

In a process for the oxidation of a lower alkene, such as ethylene, over a catalyst containing Cu and one or more zeolite or zeotype materials, the oxidation is conducted in the presence of ammonia in the feed gas at a process temperature below 350° C. The oxidation can be performed in a continuous process. 1. A process for the oxidation of a lower alkene over a catalyst containing Cu and one or more zeolite or zeotype materials , wherein the oxidation is conducted in the presence of ammonia in the feed gas at a process temperature below 350° C.2. Process according to claim 1 , wherein a zeolite or zeotype material is mixed with an oxide of Cu.3. Process according to claim 1 , wherein the zeotype is a silico-alumino phosphate material.4. Process according to claim 1 , in which the oxidation is performed in a continuous process.5. Process according to claim 1 , wherein the lower alkene is ethylene.6. Process according to claim 1 , wherein the reaction product is ethylene oxide.7. Process according to claim 1 , wherein the reaction product is ethylene glycol.8. Process according to claim 1 , wherein the reaction product is acetaldehyde.9. Process according to claim 1 , wherein the lower alkene is propylene.10. Process according to claim 1 , wherein the reaction product is propylene oxide.11. Process according to claim 1 , wherein the content of ammonia in the feed gas is between 1 and 5000 ppmv.12. Process according to claim 1 , wherein the content of oxygen in the feed gas is 10 vol % or lower.13. Process according to claim 1 , wherein the content of water in the feed gas is 10 vol % or lower.14. Process according to claim 1 , wherein the process temperature is 250° C. or lower.15. Process according to claim 1 , wherein one or more zeolite or zeotype materials in the catalyst have structures selected from the group consisting of AEI claim 1 , AFX claim 1 , CHA claim 1 , KFI claim 1 , ERI claim 1 , GME claim 1 , LTA claim 1 , IMF claim 1 , ITH claim 1 , MEL claim 1 , ...

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Номер записи: 51
13-04-2017 дата публикации

PROCESS TO PRODUCE PARAFFINIC HYDROCARBON FLUIDS FROM LIGHT PARAFFINS

Номер: US20170101355A1
Автор: Wang Kun
Принадлежит:

A process for converting light paraffins to heavier paraffinic hydrocarbon fluids is disclosed. The process involves: (1) oxidation of iso-paraffins to alkyl hydroperoxides and alcohols; (2) conversion of the alkyl hydroperoxides and alcohols to dialkyl peroxides; and (3) radical-initiated coupling of paraffins and/or iso-paraffins using the dialkyl peroxides as radical initiators, thereby forming heavier hydrocarbon products. Fractionation of the heavy hydrocarbon products can then be used to isolate fractions for use as hydrocarbon fluids. 1. A process for the conversion of paraffins to paraffinic hydrocarbon fluids , comprising:a) oxidizing iso-paraffins from a first paraffinic feed with air or oxygen to form alkyl hydroperoxides and alcohols;b) catalytically converting the alkyl hydroperoxides and alcohols to dialkyl peroxides; andc) coupling a second paraffinic feed using the dialkyl peroxides as radical initiators to create hydrocarbon fluids.2. The process of claim 1 , wherein the first paraffinic feed comprises normal paraffins claim 1 , iso-paraffins claim 1 , or mixtures thereof.3. The process of claim 2 , further comprising isomerizing at least a fraction of the normal paraffins to iso-paraffins prior to step (a).4. The process of claim 1 , wherein the second paraffinic feed comprises normal paraffins claim 1 , iso-paraffins claim 1 , or mixtures thereof.5. The process of claim 1 , further comprising fractionating the paraffinic hydrocarbon fluids to isolate a desired fraction.6. The process of claim wherein the first paraffinic feed and the second paraffinic feed are independently selected from normal paraffins with 4 or 5 carbon numbers claim 1 , iso-paraffins with 4 or 5 carbon numbers claim 1 , and mixtures thereof.7. The process of claim 1 , wherein the iso-paraffins of step (a) are selected from iso-butane claim 1 , iso-pentane claim 1 , and mixtures thereof.8. The process of claim 1 , wherein the iso-paraffins of step (a) comprise 60 to 99 wt % iso ...

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Номер записи: 52
13-04-2017 дата публикации

High octane gasoline and process for making same

Номер: US20170101357A1
Автор: Kun Wang
Принадлежит: ExxonMobil Research and Engineering Co

A process for converting light paraffins to a high octane gasoline composition is disclosed. The process involves: (1) oxidation of iso-paraffins to alkyl hydroperoxides and alcohol; (2) conversion of the alkyl hydroperoxides and alcohol to dialkyl peroxides; and (3) radical coupling of iso-paraffins using the dialkyl peroxides as radical initiators, thereby forming gasoline-range molecules. Fractionation of the gasoline-range molecules can then be used to isolate high octane gasoline fractions having a road octane number [(RON+MON)/2] greater than 110.

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Номер записи: 53
04-04-2019 дата публикации

Simultaneous on-site production of hydrogen peroxide and nitrogen oxides from air and water in a low power flowing liquid film plasma discharge for use in agriculture

Номер: US20190099733A1
Автор: Bruce R. Locke, Robert WANDELL
Принадлежит: Florida State University Research Foundation Inc

A reactor system that includes a single reactor or a plurality of parallel reactors. A method that includes injecting a mixture including liquid water and a gas, into at least one electrically-conductive inlet capillary tube of a continuously-flowing plasma reactor to generate a flowing liquid film region on one or more internal walls of the continuously-flowing plasma reactor with a gas stream flowing through the flowing liquid film region; propagating a plasma discharge along the flowing liquid film region from at least one electrically-conductive inlet capillary to an electrically-conductive outlet capillary tube at an opposing end of the continuously-flowing plasma reactor; dissociating the liquid water in the plasma discharge to form a plurality of dissociation products; producing hydrogen peroxide and nitrogen oxides from the plurality of dissociation products.

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Номер записи: 54
29-04-2021 дата публикации

Integrated Aromatics Formation and Methylation

Номер: US20210122688A1
Автор: Detjen Todd E., Dorsi Catherine M., Go Anthony, Shekhar Mayank
Принадлежит:

Systems and methods are provided for integration of an aromatic formation process for converting non-aromatic hydrocarbon to an aromatic product and subsequent methylating of a portion of the aromatic product to produce a methylated product, with improvements in the aromatic formation process and/or the methylation process based on integrating portions of the secondary processing trains associated with the aromatic formation process and the methylation process. The aromatic formation process and methylation process can be used, for example, for integrated production of specialty aromatics or gasoline blending components. 1. A method for forming aromatic compounds , comprising:providing a feed comprising non-aromatic hydrocarbon, at least a portion of the the non-aromatic hydrocarbon being obtained from each of a recycle portion of a first light ends stream and a recycle portion of a second light ends stream;{'sub': 7', '8, "aromatizing at least a portion of the feed's non-aromatic hydrocarbon to produce an aromatic formation effluent comprising benzene, Caromatic hydrocarbon, and Caromatic hydrocarbon, the aromatization being carried out in an aromatic formation process under effective aromatic formation conditions;"}{'sub': 7', '8', '7', '8', '7', '6', '7, 'separating from the aromatic formation effluent a first higher boiling intermediate stream, a first lower boiling intermediate stream, and a first light ends stream which includes the recycle portion of the first light ends stream, the first higher boiling intermediate stream having a Caromatic hydrocarbon concentration (weight percent), a Caromatic hydrocarbon concentration (weight percent) or a combined C-Caromatic hydrocarbon concentration (weight percent) greater than those of the aromatic formation effluent, the first lower boiling intermediate stream having a benzene concentration (weight percent), a Caromatic hydrocarbon concentration (weight percent) or a combined C-Caromatic hydrocarbon concentration ( ...

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Номер записи: 55
14-05-2015 дата публикации

EMISSIONS CONTROL OF SPENT AIR FROM CUMENE OXIDATION

Номер: US20150133702A1
Автор: Wong Eric Wing-Tak
Принадлежит:

Methods and systems for removing volatile organic compounds from spent air are provided. The method can include oxidizing cumene in the presence of an oxidant to produce an oxidized product containing methanol and a spent air, separating the spent air from the oxidized product, contacting the spent air with an absorbent, an adsorbent, or a mixture thereof to remove at least a portion of any impurities in the spent air to produce a first purified air, and contacting the first purified air with a biological material to produce a treated air. 1. A method for purifying spent air , comprising:oxidizing cumene in the presence of an oxidant to produce an oxidized product comprising methanol and a spent air;separating the spent air from the oxidized product;contacting the spent air with an absorbent, an adsorbent, or a mixture thereof to remove at least a portion of any impurities in the spent air to produce a first purified air; andcontacting the first purified air with a biological material to produce a treated air; wherein no supplemental water is injected into the spent air prior to the spent air being cooled.2. The method of claim 1 , wherein the treated air contains less than 1 ppmw volatile organic compounds claim 1 , and further comprising:cooling the spent air after separating the spent air from the oxidized product; andseparating water from the cooled spent air.3. The method of claim 1 , wherein the oxidant comprises air claim 1 , oxygen claim 1 , oxygen-enriched air claim 1 , or combination thereof and wherein the spent air comprises molecular oxygen claim 1 , nitrogen claim 1 , water claim 1 , methyl hydrogen peroxide claim 1 , formic acid claim 1 , benzene claim 1 , toluene claim 1 , and cumene.4. The method of claim 1 , further comprising separating water from the spent air prior to contacting the spent air with the absorbent claim 1 , the adsorbent claim 1 , or the mixture thereof.5. The method of claim 1 , wherein the adsorbent comprises at least one bed of ...

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Номер записи: 56
11-05-2017 дата публикации

PRINS REACTION ON HINDERED SUBSTRATES

Номер: US20170129834A1
Автор: FONTENY Fabien, Knopff Oliver
Принадлежит: FIRMENICH SA

The present invention relates to the field of organic synthesis and more specifically it concerns a process for the preparation of homoallylic alcohol derivatives as defined in formula (I) via a reaction of alkene of formula (II) with an aldehyde. 2. A process according to claim 1 , wherein the compound of formula (II) are C-Ccompounds.5. A process according to claim 1 , wherein the compound of formula (IV) is 1 claim 1 ,1 claim 1 ,4a claim 1 ,6-tetramethyl-5-methylenedecahydronaphthalene in the form of an essentially pure stereoisomer or in the form of a mixture of stereoisomers.6. A process according to claim 1 , wherein compound of formula RCHO is paraformaldehyde.7. A process according to claim 1 , wherein temperature at which the reaction can be carried out is comprised in the range between 160° C. and 230° C.8. A process according to claim 1 , wherein the process is carried out in the presence of carboxylic derivative selected amongst a Ccarboxylic acid claim 1 , Ccarboxylic anhydride or a mixture of said carboxylic acid and said carboxylic anhydride.9. A process according to claim 1 , wherein the process is carried out in the presence of a solvent. The present invention relates to the field of organic synthesis and more specifically it concerns a process for the preparation of homoallylic alcohol derivatives as defined in formula (I) via a reaction of highly sterically hindered alkene of formula (II) with an aldehyde.Many homoallylic alcohol derivatives as defined in formula (I) are useful products as such or useful intermediates of the preparation of other important raw materials in particular for the perfumery industry (e.g. 2-(2,5,5,8a-tetramethyl-3,4,4a,5,6,7,8,8a-octahydronaphthalen-1-yl)ethan-1-ol). The latter compound is an important intermediate for the preparation of industrially relevant compounds such as Cetalox® (3a,6,6,9a-tetramethyldodecahydronaphtho[2,1-b]furan; origin: Firmenich SA, Geneva, Switzerland) or Ambrox® (mixture of diastereomers of ...

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Номер записи: 57
03-06-2021 дата публикации

METHODS AND COMPOSITIONS FOR THE CATALYTIC UPGRADING OF ALCOHOLS

Номер: US20210163386A1
Автор: Dinca Mircea, Neumann Constanze Nicole
Принадлежит: Massachusetts Institute of Technology

Compositions and methods of use related to metal organic frameworks (MOFs) and/or nanoparticles are generally described. In some embodiments, methods and compositions for the catalytic upgrading of alcohols using MOFs and/or nanoparticles associated with MOFs are generally described. In some embodiments, a catalytic MOF composition is provided, wherein the MOF composition comprises a MOF compound and a plurality of metal catalytic compounds. In some embodiments, an alcohol may be exposed to the MOF composition and/or a plurality of nanoparticles associated with the MOF composition such that the alcohol is converted to a higher order alcohol. Advantageously, in some embodiments, the alcohol conversion occurs at a relatively high turnover frequency and/or with a relatively high selectivity as compared to traditional methods for converting alcohols. 15-. (canceled)6. A MOF composition , comprising:a MOF compound comprising a plurality of cobalt atoms or nickel atoms; anda plurality of metal catalytic compounds,wherein at least a portion of the plurality of metal catalytic compounds are bonded with and at least a portion of the cobalt atoms or nickel atoms in the form of an alloy.7. The composition of claim 6 , wherein the alloy is a nickel-based alloy or a cobalt-based alloy.8. The composition of claim 6 , wherein the alloy is a ruthenium-based alloy.9. The composition of claim 6 , wherein the alloy comprises RuCoor RuNinanoparticles.10. The composition of claim 6 , wherein the MOF compound comprises a plurality of ligands.11. (canceled)12. The composition of claim 10 , wherein each ligand comprises at least one N-substituted aromatic group.13. The composition of claim 10 , wherein each ligand comprises at least one pyrazole group.14. The composition of claim 10 , wherein each ligand comprises at least two pyrazole groups.1517-. (canceled)20. The composition of claim 18 , wherein each Ris the same and is optionally substituted alkyl.21. The composition of claim 18 , ...

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Номер записи: 58
19-05-2016 дата публикации

PREPARATION OF GRIGNARD REAGENTS USING A FLUIDIZED BED

Номер: US20160137669A1
Автор: Goldbach Michel, Poechlauer Peter, Reintjens Rafael Wilhelmus Elisabeth Ghislain, Thathagar Mehul
Принадлежит:

The present invention relates to a process of preparing a Grignard reagent comprising reacting magnesium particulates in a fluid bed reactor. The present invention further relates to a continuous process comprising fluidizing magnesium particulates in a reactor, forming the Grignard reagent continuously, and reacting the Grignard reagent with a substrate. 1. A process of preparing a Grignard reagent comprising the steps of creating a fluid of magnesium particulates and a solvent in a reactor; and contacting the magnesium particulates with at least one organohalide to form the Grignard reagent; wherein the fluid comprises the solvent flowing against gravity through a bed of magnesium particulates ranging in size from 10 to 1000 μm when added , with a flow rate ranging from 0.1 to 0.3 cm/s to create a fluidized bed of magnesium particulates in the solvent.2. The process of claim 1 , wherein the solvent comprises the at least one organohalide.3. (canceled)4. The process according to claim any one of claim 1 , wherein the solvent is a liquid.5. The process according to claim 1 , wherein the solvent is a gas.6. The process according to claim 1 , wherein the particulates range in size from 100 to 500 μm.7. The process according to claim 6 , wherein the particulates range in size from 200 to 400 μm.8. The process according to claim 2 , wherein the solvent further comprises at least one ether solvent.9. The process according to claim 8 , wherein the ether solvent is selected from the group consisting of cyclopentyl methyl ether (CPME) claim 8 , tetrahydrofuran claim 8 , methyltetrahydrofuran claim 8 , dioxane and dimethoxyethane.10. The process according to claim 1 , wherein the solvent flows at a rate higher than the settling velocity of the magnesium particulates in at least a part of the process.11. The process according to claim 1 , wherein the flow rate is in the range of 0.1 to 0.2 cm/s in a part of the process where magnesium particulates create the fluidized bed.12. ...

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Номер записи: 59
18-05-2017 дата публикации

Carbon Efficient Process for Converting Methane to Olefins and Methanol by Oxidative Coupling of Methane

Номер: US20170137355A1
Автор: Liang Wugeng, MAMEDOV Aghaddin, SARSANI Vidya Sagar Reddy, WEST David
Принадлежит:

A method for producing olefins and methanol comprising introducing a first reactant mixture comprising CHand Oto a first reaction zone; allowing the first reactant mixture to react via an OCM reaction to form a first product mixture characterized by a first H/CO molar ratio; introducing a second reactant mixture comprising the first product mixture and an ethane stream to a second reaction zone, wherein ethane of the second reactant mixture undergoes a cracking reaction to produce ethylene; recovering a second product mixture from the second reaction zone, wherein the second product mixture is characterized by a second H/CO molar ratio, and wherein the second H/CO molar ratio is greater than the first H/CO molar ratio; recovering from the second product mixture a methanol production feed stream comprising methane, Hand CO; and introducing the methanol production feed stream to a third reaction zone to produce methanol. 1. A method for producing olefins and methanol comprising:{'sub': 4', '2, '(a) introducing a first reactant mixture to a first reaction zone, wherein the first reactant mixture comprises methane (CH) and oxygen (O), and wherein the first reaction zone is characterized by a first reaction zone temperature of from about 700° C. to about 1,100° C.;'}{'sub': 4', '2+', '2', '2', '2', '2', '2+', '2', '3+', '2', '2', '6', '2', '4, '(b) allowing at least a portion of the first reactant mixture to react via an oxidative coupling of CH(OCM) reaction to form a first product mixture, wherein the first product mixture comprises C hydrocarbons, hydrogen (H), carbon monoxide (CO), water, CO, and unreacted methane, wherein the first product mixture is characterized by a first hydrogen (H) to carbon monoxide (CO) (H/CO) molar ratio, wherein the C hydrocarbons comprise Chydrocarbons and C hydrocarbons, and wherein the Chydrocarbons comprise ethane (CH) and ethylene (CH);'}(c) introducing a second reactant mixture comprising at least a portion of the first product ...

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Номер записи: 60
30-04-2020 дата публикации

PROCESS FOR PREPARING POROUS IRON OXIDE-ZIRCONIA COMPOSITE CATALYST, POROUS IRON OXIDE-ZIRCONIA COMPOSITE CATALYST PREPARED THEREBY, AND METHOD FOR PRODUCING ALCOHOL USING THE CATALYST

Номер: US20200129965A1
Автор: LEE Jae Hyun, MOON Jun Hyuk
Принадлежит:

The present invention relates to a porous iron oxide-zirconia composite catalyst, a preparation method thereof, and a method for producing alcohol using the same, and the iron oxide-zirconia composite catalyst having a porous structure may produce alcohol at low cost by carrying out an excellent methane reforming reaction even under room temperature and room pressure conditions through an electrochemical reaction. 1. A method for preparing a porous iron oxide-zirconia composite catalyst , the method including:impregnating a polymer template mold with a precursor mixture of iron oxide precursor and a zirconia precursor;drying the polymer template mold impregnated with the precursor mixture; andsintering the dried polymer template mold.2. The method of claim 1 ,wherein the iron oxide precursor is one or more selected from the group consisting of iron (III) nitrate, iron (III) chlorate, and iron (III) sulfate.3. The method of claim 1 ,wherein the zirconia precursor is one or more selected from the group consisting of zirconium oxynitrate, zirconium nitrate, and zirconium sulfate.4. The method of claim 1 ,wherein the iron oxide precursor and the zirconia precursor are mixed at a molar ratio of 8:1 to 2:1.5. The method of claim 1 ,wherein the polymer template mold includes a spherical polymer arranged in a face centered cubic (fcc) structure.6. The method of claim 1 ,wherein the polymer template mold is manufactured by a method including emulsion polymerization of monomers, followed by drying step.7. The method of claim 1 ,wherein the polymer template mold includes one or more polymers selected from the group consisting of poly(methyl methacrylate) [PMMA], poly(butyl methacrylate) [PBMA], poly(methyl methacrylate)(butyl methacrylate), poly(hydroxyethyl methacrylate) [PHEMA], and polystyrene.815-. (canceled) This application is a divisional of U.S. patent application Ser. No. 16/134,424, filed Sep. 18, 2018, which claims priority to Korean Patent Application No. 10-2018- ...

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Номер записи: 61
11-06-2015 дата публикации

Method for Producing Isononanoic Acid Esters, Starting from 2-Ethyl Hexanol

Номер: US20150158805A1
Автор: Eisenacher Matthias, Frey Guido D., Kockrick Kristina, Strutz Heinz
Принадлежит:

A Process for preparing carboxylic esters of a mixture of structurally branched C9 monocarboxylic acids proceeding from 2-ethylhexanol is characterized in that 1. Process for preparing carboxylic esters of a mixture of structurally branched C9 monocarboxylic acids proceeding from 2-ethylhexanol , characterized in that(a) 2-ethylhexanol is dehydrated to an octene mixture in the presence of a catalyst;(b) the octene mixture obtained in step a) is reacted in the presence of a transition metal compound of group VIII of the periodic table of the elements with carbon monoxide and hydrogen to give a mixture of isomeric isononanals;(c) the mixture of isomeric isononanals obtained in step b) is oxidized to a mixture of structurally branched C9 monocarboxylic acids; and(d) the mixture of structurally branched C9 monocarboxylic acids obtained in step c) is reacted with alcohols to give carboxylic esters.2. Process according to claim 1 , characterized in that the catalyst used in step a) is alumina claim 1 , nickel precipitated on alumina claim 1 , or phosphoric acid precipitated on silica or alumina.3. Process according to claim 1 , characterized in that 2-ethylhexanol is dehydrated in the gas phase in step a).4. Process according to claim 1 , characterized in that the transition metal compound of group VIII of the periodic table of the elements used in step b) is a cobalt or rhodium compound.5. Process according to claim 1 , characterized in that the reaction in step b) is performed in the absence of complex-forming organoelemental compounds.6. Process according to claim 1 , characterized in that the mixture of isomeric isononanals obtained in step b) is distilled.7. Process according to claim 1 , characterized in that the oxidation in step c) is effected in the presence of alkali metal or alkaline earth metal carboxylates.8. Process according to claim 7 , characterized in that the alkali metal or alkaline earth metal carboxylate used is lithium isononanoate claim 7 , ...

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Номер записи: 62
09-06-2016 дата публикации

PROCESS FOR PRODUCING 1,6-HEXANEDIOL

Номер: US20160159715A1
Автор: Davis Ronald James, Menning Carl Andrew, MURPHY JOSEPH E., Ritter Joachim C., Sengupta Sourav Kumar
Принадлежит:

Disclosed herein are processes for producing 1,6-hexanediol. In one embodiment, the process comprises a step of contacting 3,4-dihydro-2H-pyran-2-carbaldehyde, a solvent, and hydrogen in the presence of a catalyst at a reaction temperature between about 0° C. and about 120° C. at a pressure and for a reaction time sufficient to form a product mixture comprising 1,6-hexanediol. In one embodiment, the catalyst comprises a metal M1, a metal M2 or an oxide of M2, and a support, wherein M1 is Rh, Ir, Ni, Pd, or Pt, and M2 is Mo, W, or Re; or M1 is Cu and M2 is Ni, Mn, or W. 1. A process comprising the step:contacting 3,4-dihydro-2H-pyran-2-carbaldehyde, a solvent, and hydrogen in the presence of a catalyst at a reaction temperature between about 0° C. and about 120° C. at a pressure and for a reaction time sufficient to form a product mixture comprising 1,6-hexanediol.2. The process of claim 1 , wherein the solvent comprises an alcohol claim 1 , an ether claim 1 , an ester claim 1 , an aromatic hydrocarbon claim 1 , an aliphatic hydrocarbon claim 1 , or mixtures thereof.3. The process of claim 2 , wherein the solvent is miscible with water and further comprises from about 0 weight percent to about 75 weight percent water claim 2 , based on the total weight of water and solvent.4. The process of claim 1 , wherein the catalyst comprises a metal M1 claim 1 , a metal M2 or an oxide of M2 claim 1 , and a support claim 1 , wherein:M1 is Rh, Ir, Ni, Pd, or Pt, and M2 is Mo, W, or Re; orM1 is Cu and M2 is Ni, Mn, or W.5. The process of claim 4 , wherein:M1 is Cu and M2 is Ni, Mn, or W.6. The process of claim 4 , wherein:M1 is Rh, Ir, Ni, Pd, or Pt, and M2 is Mo, W, or Re.7. The process of claim 4 , wherein M1 is Pt and M2 is W.8. The process of claim 4 , wherein the support comprises WO claim 4 , VO claim 4 , MoO claim 4 , SiO claim 4 , AlO claim 4 , TiO claim 4 , ZrO claim 4 , tungstated ZrO claim 4 , SiO—AlO claim 4 , SiO—TiO claim 4 , montmorillonite claim 4 , zeolites claim ...

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Номер записи: 63
09-06-2016 дата публикации

METHOD FOR PRODUCING OXIDE

Номер: US20160159722A1
Автор: HARASAKI Yoshiya, ISHII Yasutaka, Suzuki Takamasa, Takase Ichiro
Принадлежит: Daicel Corporation

Provided is a method of oxidizing a substrate with excellent oxidizing power to yield a corresponding oxide. The method can employ a commercially available imide compound as intact as a catalyst and can produce the oxide in a high yield under mild conditions. 2. The method according to for producing an oxide claim 1 ,wherein a metallic compound is used as a promoter in combination with the imide compound as a catalyst.3. The method according to for producing an oxide claim 2 ,wherein the metallic compound includes at least one metal element selected from the group consisting of cobalt, manganese, zirconium, and molybdenum.4. The method according to for producing an oxide claim 1 ,wherein the oxidation as a reaction is performed using approximately no solvent.5. The method according to for producing an oxide claim 1 ,wherein the oxidation as a reaction is performed under normal atmospheric pressure.6. The method according to for producing an oxide claim 1 ,wherein the oxidation as a reaction is performed in the presence of at least one selected from the group consisting of nitric acid and nitrogen oxides.7. The method according to for producing an oxide claim 1 ,wherein the oxidation as a reaction is performed at a temperature of 100° C. or lower.10. The method according to for producing an oxide claim 2 ,wherein the oxidation as a reaction is performed using approximately no solvent.11. The method according to for producing an oxide claim 3 ,wherein the oxidation as a reaction is performed using approximately no solvent.12. The method according to for producing an oxide claim 2 ,wherein the oxidation as a reaction is performed under normal atmospheric pressure.13. The method according to for producing an oxide claim 3 ,wherein the oxidation as a reaction is performed under normal atmospheric pressure.14. The method according to for producing an oxide claim 4 ,wherein the oxidation as a reaction is performed under normal atmospheric pressure.15. The method according ...

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Номер записи: 64
07-06-2018 дата публикации

OXIDATION OF LIMONENE

Номер: US20180155262A1
Автор: Dilk Erich, Geisel Detlef, Lambrecht Stefan
Принадлежит:

The invention discloses a process for the oxidation of limonene, comprising the reaction of limonene with hydrogen peroxide in the presence of a catalyst containing atoms and/or ions of at least one metal, selected from the group consisting of molybdenum, tungsten, scandium, vanadium, titanium, lanthanum, zirconium, praseodymium, neodymium, samarium, europium, terbium, dysprosium, erbium or ytterbium, characterised in that the molecular weight of the catalyst is less than 2,000 g/mol and that the reaction is performed at a pH value of more than 7.5. 1. A process for the oxidation of limonene , comprising the reaction of limonene with hydrogen peroxide in the presence of a catalyst containing atoms and/or ions of at least one metal selected from the group consisting of molybdenum , tungsten , scandium , vanadium , titanium , lanthanum , zirconium , praseodymium , neodymium , samarium , europium , terbium , dysprosium , erbium or ytterbium and mixtures thereof , wherein the molecular weight of the catalyst is less than 2 ,000 g/mol and the reaction is performed at a pH value of more than 7.5.2. The process of claim 1 , wherein the catalyst contains atoms and/or ions of at least one metal selected from the group consisting of molybdenum claim 1 , tungsten claim 1 , scandium claim 1 , vanadium claim 1 , titanium and lanthanum and mixtures thereof.3. The process of claim 1 , wherein the catalyst is selected from the group consisting of sodium molybdate claim 1 , sodium molybdate dihydrate claim 1 , sodium tungstate claim 1 , sodium tungstate dihydrate and lanthanum nitrate and mixtures thereof.4. The process of claim 1 , wherein the reaction is performed in at least one organic solvent.5. The process of claim 4 , wherein the solvent is selected from the group consisting of C1-C8 alcohols and amides and mixtures thereof.6. The process of claim 1 , wherein the pH value is more than 8.7. The process of claim 1 , wherein the temperature is from 25 to 90° C.8. The process of ...

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Номер записи: 65
07-06-2018 дата публикации

CATALYTIC OXIDATION OF 3,5,5-TRIMETHYLCYCLOHEXA-3-ENE-1-ONE (ß-ISOPHORONE) WITH HYDROGEN PEROXIDE TO AFFORD 2,6,6-TRIMETHYL-2-CYCLOHEXENE-1,4-DIONE (KETO-ISOPHORONE)

Номер: US20180155264A1
Автор: BAJUS Stephanie, Caßens Jan, DÖRING Jens, Jansen Robert, KOHLSTRUK Stephan, Nitz Jörg-Joachim
Принадлежит:

The present invention provides a novel process for producing 2,6,6-trimethyl-2-cyclohexene-1,4-dione (keto-isophorone) by catalytic oxidation of 3,5,5-trimethylcyclohexa-3-ene-1-one (β-isophorone) with hydrogen peroxide as the oxidant. In particular, the novel process includes phase transfer reagent in a biphasic system including an organic phase and an aqueous phase wherein the biphasic system includes 1) a tungsten polyoxyometallate as catalyst and hydrogen peroxide, and/or 2) a mixture of a) a mineral acid, b) hydrogen peroxide, and c) a metal tungstate. 1. A process for producing keto-isophorone , the process comprising the step of oxidizing β-isophorone in the presence of a catalyst and hydrogen peroxide in a one-pot synthesis , in the presence of a phase transfer reagent in a biphasic system comprisingA) an organic phaseandB) an aqueous phasewherein the biphasic system comprises:1) a tungsten polyoxyometallate as catalyst and hydrogen peroxide,and/or a) a mineral acid,', 'b) hydrogen peroxide, and', 'c) a metal tungstate., '2) a mixture of'}2. The process according to claim 1 , wherein the oxidizing is performed at a temperature of from 30 to 120° C.3. The process according to claim 1 , wherein the ratio of β-isophorone to HOis from 1:0.7 to 1:3 wt %.4. The process according to claim 1 , wherein the ratio of organic phase to aqueous phase varies from 1:10 to 5:1 wt %.5. The process according to claim 1 , wherein the hydrogen peroxide concentration in the aqueous phase is from 1 to 50 wt %.6. The process according to claim 1 , wherein the molar ratio of catalyst to hydrogen peroxide is from 1:10 to 1:400 wt %.7. The process according to claim 1 , wherein the phase transfer agent is selected from the group consisting of quaternary ammonium salts claim 1 , tertiary amines or quaternary phosphonium salts claim 1 , alone or in mixtures.8. The process according to claim 7 , wherein the phase transfer agent is selected from the group consisting of ...

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Номер записи: 66
08-06-2017 дата публикации

HETEROCYCLIC SELENABISPHOSPHITES AND PROCESS FOR PREPARATION THEREOF

Номер: US20170158590A1
Автор: BÖRNER Armin, DYBALLA Katrin Marie, Franke Robert, SELENT Detlef, WEILBEER Claudia
Принадлежит: EVONIK DEGUSSA GmbH

Novel heterocyclic selenabisphosphites, process for preparation thereof and use thereof as ligand unit for preparing ligands for use in complexes. 6. Compound according to claim 1 , characterized in that{'sup': 1', '1*, 'the —Rand —Rare selected from the alternatives'}{'sup': 1', '1*, 'a) —Rand —Rin structure (I) or (Ia) are the same and are selected from (II), (III), (IV), (V), (VI) and (VII)'}{'sup': 1', '1*, 'b) in structure (I) or (Ia), —Ris —H and —Ris selected from (II), (III), (IV), (V), (VI) and (VII),'}{'sup': 1', '1, 'c) in structure (I) or (Ia), —Ris —H and —Ris selected from (II), (III), (IV), (V), (VI) and (VII),'}d) the compound of alternative a) is in the form of a mixture with b) and/or c).11. Process according to claim 7 , wherein (i) the reaction is conducted in the presence of a base claim 7 , especially an amine or a pyridine base.12. Complex comprising{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'at least one compound of the general structure (I) or (Ia) of and'}at least one metal atom selected from Rh, Ru, Co, Ir.13. Use of a compound according to as ligand in a complex comprising at least one metal atom.14. Use of a compound according to for catalysis of a hydroformylation reaction or as an intermediate for preparation of ligands.15. Process comprising the process steps of(i) initially charging at least one olefin,{'claim-ref': {'@idref': 'CLM-00012', 'claim 12'}, 'claim-text': 'and a substance including a metal atom selected from: Rh, Ru, Co, Ir,', '(ii) adding a complex according to ,'}{'sub': '2', '(iv) feeding in Hand CO,'} 'wherein the olefin is converted to an aldehyde.', '(v) heating the reaction mixture,'}16. Process comprising the process steps of {'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, '(ii) adding a compound according to , and a substance including a metal atom selected from: Rh, Ru, Co, Ir,'}, '(i) initially charging at least one olefin,'}{'sub': '2', '(iv) feeding in Hand CO,'} 'wherein the olefin Is converted to an ...

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Номер записи: 67
08-06-2017 дата публикации

COMPLEXES OF DIPHENYL SELENOXIDES, USE THEREOF AND CATALYSIS METHODS

Номер: US20170158632A1
Автор: BÖRNER Armin, DYBALLA Katrin Marie, Franke Robert, SELENT Detlef, WEILBEER Claudia
Принадлежит: EVONIK DEGUSSA GmbH

Novel complexes of diphenyl selenoxides and also use thereof and methods in which the complexes are used. 8. Use of a diphenyl selenoxide of the general structure (I) according to{'sup': 2', '3', '4', '5', '6', '7', '8', '9, 'sub': 1', '12, 'a) where R, R, R, R, R, R, Rand Rare each independently selected from —H, —(C-C)-alkyl, -halogen, where alkyl is linear, branched or cyclic,'}{'sup': 1', '10, 'sub': 1', '12, 'where R, Rare —H or and —(C-C)-alkyl, where alkyl is linear, branched or cyclic, for the catalysis of a hydroformylation reaction, or'}{'sup': 2', '3', '4', '5', '6', '7', '8', '9, 'sub': 1', '12, 'b) where R, R, R, R, R, R, Rand Rare each independently selected from —H, —(C-C)-alkyl, -halogen, where alkyl is linear, branched or cyclic,'}{'sup': 1', '1, 'as intermediate for preparing ligands where Rand Rare halogen.'} Novel complexes of diphenyl selenoxides and also use thereof and methods in which the complexes are used.A synthetic route for the preparation of diphenyl selenides, as disclosed in the experimental section, is also described in the European patent application EP15168377.8. The resulting diphenyl selenides may subsequently be oxidized to diphenyl selenoxides.In hydroformylation, monophosphites and biphosphites are generally used, which are often formed from biphenol units, The development of novel ligands is frequently limited by the available ligand building blocks. For instance, diphenyl selenoxides represent a highly interesting compound class which is suitable as a ligand in complexes or as ligand building blocks for the preparation of ligands.The object of the invention was to provide a further wholly novel substance class of ligand building blocks and catalysts in order to broaden the field of available ligands for the respective specific complexes in catalysis. The object also consisted of providing or producing ligands for rhodium hydroformylation catalysts. The object therefore also consisted of providing novel ligand building blocks ...

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Номер записи: 68
14-05-2020 дата публикации

Method of Preparing Bio-Polyols from Epoxidized Fatty Acid Esters

Номер: US20200148614A1
Автор: Li Chiu-Ping, Lin Ya-Shiuan, Tsai Ming-Tsang, Tu You-Liang
Принадлежит:

A method of preparing bio-polyols from epoxidized fatty acid esters, wherein the bio-polyols are synthesized via hydroxylation with epoxidized fatty acid esters and ring-opening reagent, using the acidic ionic liquids as catalysts. The bio-polyols are used to synthesize bio-polyurethane and bio-polyurethane foams. The acidic ionic liquids in this process is used in esterification, epoxidation, and ring-opening reaction to synthesize bio-polyols. The ionic liquids catalysts have several advantages such as easy to separate, reusable, and may reduce pollution. 1. A method of preparing bio-polyols from epoxidized fatty acid esters comprising steps of:replacing amphoteric compound by using alkyl sulfonic acid, wherein the alkyl sulfonic acid are synthesized with Brønsted strong acid to produce Brønsted acid IL, a molar ratio of the alkyl sulfonic acid and the Brønsted strong acid is within 1.0 to 1.5;mixing the epoxidized fatty acid esters and the Brønsted acid IL at a predetermined ratio, adding alcohols for using as ring-opening reagent, thus producing reaction solution, wherein the reaction solution is heated within a temperature of 30° C. to 100° C. for 1 to 24 hours to cause ring-opening hydroxylation, wherein a molar ratio of the alcohols and the epoxidized fatty acid esters is within 4 to 20, and a molar ratio of the Brønsted acid IL and the epoxidized fatty acid esters is within 0.01 to 0.15; andextracting and layering the reaction solution by using deionized water to acquire upper-layer solution and lower-layer solution, wherein the lower-layer solution consists of ionic liquid which is concentrated and dried to recycle reusable ionic liquid, and the upper-layer solution consists of bio-polyols which are extracted by using the deionized water and alkaline water and then dehydrated.2. The method as claimed in claim 1 , wherein the alkyl sulfonic acid is CH claim 1 , and the n is a positive integer within 3 to 6.3. The method as claimed in claim 1 , wherein the Br ...

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Номер записи: 69
24-06-2021 дата публикации

PRODUCTION OF HIGH-VALUE FUEL MIXTURES FROM SYNTHETIC AND BIOLOGICALLY DERIVED HYDROCARBON MOLECULES

Номер: US20210189276A1
Автор: AbuSalim Deyaa I., CHOI Eugine, Gupta Himanshu, Kang Dongil, Mitchell Jonathan E., Park Jung, Wang Kun
Принадлежит:

A process for converting light paraffins and/or light hydrocarbons to a high octane gasoline composition is disclosed. The process involves: (1) oxidation of iso-paraffins to alkyl hydroperoxides and alcohol; (2) conversion of the alkyl hydroperoxides and alcohol to dialkyl peroxides; and (3) radical coupling of one or more iso-paraffins and/or iso-hydrocarbons using the dialkyl peroxides as radical initiators, thereby forming a gasoline composition comprising gasoline-range molecules including a C7 enriched gasoline composition having a road octane number (RON) greater than 100. 1. A process for the production of a high octane gasoline composition comprising gasoline-range molecules , the process comprising the steps of:(a) providing a first feed stream comprising one or more iso-paraffins and oxiding the iso-parrafins to form alkyl hydroperoxides and alcohol;(b) converting the alkyl hydroperoxides and alcohols to dialkyl peroxides; and(c) providing a second feed stream comprising two or more light paraffins or light hydricarbons and coupling the light paraffins and/or light hydrocarbons using the dialkyl peroxides as a radical initiator to form a gasoline composition comprising gasoline-range molecules;(d) optionally fractionating the gasoline-range molecules to isolate a desired gasoline fraction having a road octane number (RON) greater than about 100.2. The process of claim 1 , wherein the one or more iso-paraffins in the first feed stream is iso-butane.3. The process of claim 1 , wherein the second feed stream comprises two or more C3-C8 paraffins.4. The process of claim 1 , wherein the second feed stream comprises two or more C3-C8 hydrocarbons.5. The process of claim 3 , wherein the second feed stream comprises two or more C3-C5 paraffins.6. The process of claim 4 , wherein the second feed stream comprises two or more C3-C5 hydrocarbons.7. The process of claim 6 , wherein the second feed stream comprises a mixture of propane and isobutane; a mixture of ...

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Номер записи: 70
11-09-2014 дата публикации

METHOD FOR PRODUCING SYNTHESIS GAS FOR METHANOL PRODUCTION

Номер: US20140256994A1
Автор: Antonetti Elena, Cucchiella Barbara, Iaquaniello Gaetano
Принадлежит: STAMICARBON B.V. ACTING UNDER THE NAME OF MT INNOVATION CENTER

Method for producing synthesis gas for methanol production The present invention relates to a method for producing synthesis gas from a hydrocarbon containing feed, which synthesis gas is particularly suitable for subsequent use in methanol production. In this method, a hydrocarbon containing feed, particularly natural gas (100), is subjected to catalytic partial oxidation (CPO) (2), followed by the water gas shift (WGS) (4) reaction of a part of the reformed feed. At least part of the shifted feed is then subjected to hydrogen purification, preferably by pressure swing adsorption (PSA) (5) to obtain pure hydrogen (108), which hydrogen is subsequently combined with the remaining parts of the feeds to yield synthesis gas particularly suitable for methanol synthesis. The recombined stream preferably has an R ratio, being the molar ratio (H—CO)/(CO+CO), in the range 1.9-2.2 and preferably about 2. The invention further relates to a method for producing methanol from a hydrocarbon containing feed, wherein first synthesis gas is obtained according to the method of the invention, which synthesis gas is further used to produce methanol.

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Номер записи: 71
21-06-2018 дата публикации

CYCLOPROPANATION OF SUBSTITUTED ALKENES

Номер: US20180170830A1
Автор: BECKER Yigal, GARA Mohamad
Принадлежит:

Disclosed is a cyclopropanation process comprising the step of reacting an alkene compound having at least one carbon-carbon double bond with at least one dihaloalkane. The reaction is carried out in the presence of (i) particulate metal Zn, (ii) catalytically effective amount of particulate metal Cu or a salt thereof, (iii) at least one haloalkylsilane, and (iv) at least one solvent. 1. A cyclopropanation process comprising the step of reacting an alkene compound having at least one carbon-carbon double bond with at least one dihaloalkane in the presence of (i) particulate metal Zn , (ii) catalytically effective amount of particulate metal Cu or a salt thereof , (iii) at least one haloalkylsilane , and (iv) at least one solvent; thereby producing a cyclopropane derivative of said compound.2. A cyclopropanation process according to claim 1 , wherein said alkene compound has at least two carbon-carbon double bonds.3. A cyclopropanation process according to claim 1 , wherein said at least one dihaloalkane is dibromomethane claim 1 , chlorobromomethane claim 1 , or a combination thereof.4. A cyclopropanation process according to claim 1 , wherein said particulate metal Zn has particle size of less than 10 μm.5. A cyclopropanation process according to claim 1 , wherein said particulate metal Cu has particle size of less than 50 μm.6. A cyclopropanation process according to claim 1 , wherein said haloalkylsilane is chlorotrialkyl silane.7. A cyclopropanation process according to claim 6 , wherein said chlorotrialkyl silane is selected from the group consisting of chlorotrimethylsilane claim 6 , chlorotriethylsilane claim 6 , chlorotributylsilane claim 6 , chlorotriisobutylsilane claim 6 , chlorotrihexylsilane claim 6 , and any combinations thereof.8. A cyclopropanation process according to claim 1 , wherein said at least one solvent is an ether solvent.9. A cyclopropanation process according to claim 8 , wherein said at least one ether solvent is selected from the group ...

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Номер записи: 72
21-06-2018 дата публикации

METHOD FOR POLYOL SYNTHESIS FROM TRIACYLGLYCERIDE OILS

Номер: US20180170845A1
Автор: CURTIS Jonathan M., Kharraz Ereddad, Kong Xiaohua, OMONOV Tolibjon S., TAVASSOLI-KAFRANI Hossein M.
Принадлежит:

A method for preparation of polyols from an unsaturated TAG oil that involves first epoxidizing the unsaturated TAG oil; then subjecting the epoxidized TAG oil to transesterification using a diol and/or triol in the presence of a catalyst to produce hydroxyalkyl esters of fatty acid epoxides; and finally hydroxylating the transesterification product using a diol and/or triol and a solid acid catalyst to obtain a polyol with relatively high hydroxyl value and low viscosity. 1. A method for the preparation of polyols from an unsaturated triacylglycerol (TAG) oil comprising the steps of:(a) fully or partially epoxidizing the unsaturated TAG oil to obtain an epoxidized TAG oil;(b) transesterifying the epoxidized TAG oil using a diol and/or triol in the presence of a catalyst and a solvent, to produce a hydroxyalkyl esters of fatty acid epoxides; and(c) hydroxylating the transesterification product using a diol and/or triol and a catalyst to obtain a polyol.2. The method of claim 1 , wherein the unsaturated TAGs comprises canola oil claim 1 , high oleic canola oil claim 1 , sunflower oil claim 1 , juvenile canola oil claim 1 , flax oil claim 1 , camelina oil claim 1 , solin oil claim 1 , yellow mustard oil claim 1 , brown mustard oil claim 1 , oriental mustard oil claim 1 , palm oil olein claim 1 , palm oil claim 1 , palm kernel oil claim 1 , soy oil claim 1 , high erucic acid rapeseed oil claim 1 , hemp oil claim 1 , corn oil claim 1 , olive oil claim 1 , peanut oil claim 1 , safflower oil claim 1 , cottonseed oil or mixtures thereof claim 1 , and the catalyst of step (c) comprises a solid acid catalyst.3. The method of claim 2 , wherein the unsaturated TAG oil comprises canola oil.4. The method of wherein the unsaturated TAG oil comprises flax oil.5. The method of claim 1 , wherein in step (a) claim 1 , the acid comprises formic acid.6. The method of claim 5 , wherein the oxidizing agent comprises hydrogen peroxide.7. The method of claim 1 , wherein the unsaturated TAG ...

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Номер записи: 73
21-06-2018 дата публикации

PHOTOLABILE PRO-FRAGRANCES

Номер: US20180170849A1
Автор: Gerke Thomas, Griesbeck Axel, Huchel Ursula, Kropf Christian, PORSCHEN Björn
Принадлежит:

A method for producing photo-cleavable fragrance pre-cursors is described, which includes potential stereoselective method steps, agents containing the fragrance pre-cursors and the use of the fragrance pre-cursors for prolonging the scent impression in the agent and on surfaces treated with said agent. 2. The method according to claim 1 , wherein the ketone of the general formula (II) has at least one semicyclic or exocyclic double bond.3. The method according to claim 1 , wherein the bridging part —R7-Q-R6 of the ketone of the general formula (II) is a hydrocarbon.4. The method according to claim 1 , wherein the ketone of the general formula (II) is selected from the group consisting of (+)-dihydrocarvone claim 1 , (+)-isodihydrocarvone claim 1 , (−)-dihydrocarvone claim 1 , (−)-isodihydrocarvone claim 1 , or mixtures thereof.5. The method according to claim 1 , wherein the radicals Rand Rof the phosphonate of the general formula (III) claim 1 , in each case independently of one another claim 1 , are methoxy claim 1 , ethoxy claim 1 , n-propoxy claim 1 , i-propoxy radicals claim 1 , or combinations thereof.6. The method according to claim 1 , wherein the radical Rof the phosphonate of the general formula (III) is a methyl claim 1 , ethyl claim 1 , n-propyl claim 1 , i-propyl claim 1 , n-butyl claim 1 , sec-butyl claim 1 , i-butyl claim 1 , or t-butyl radical.7. The method according to claim 1 , wherein the reduction in method step d) takes place in the presence of an organic catalyst.8. The method according to claim 1 , wherein the reduction in method step d) is stereoselective.9. The method according to claim 1 , wherein the reduction in method step d) takes place in the presence of a chiral catalyst.10. The method according to claim 1 , wherein the reduction in method step d) takes place in the presence of a chiral imidazolidinone.16. The agent of claim 15 , wherein the agent is selected from the group consisting ofa washing agent, a cleaning agent, a cosmetic ...

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Номер записи: 74
06-06-2019 дата публикации

REGENERATIVE ADSORBENTS OF MODIFIED AMINES ON SOLID SUPPORTS

Номер: US20190168185A1
Автор: GOEPPERT Alain, Olah George A., Prakash G.K. Surya, Zhang Hang
Принадлежит:

The invention relates to regenerative, solid sorbents for adsorbing carbon dioxide from a gas mixture, including air, with the sorbent including a modified polyamine and a solid support. The modified polyamine is the reaction product of an amine and an epoxide. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple cycles of adsorption-desorption. 1. A method for capturing and separating carbon dioxide from a gas mixture , which comprises:exposing a carbon dioxide sorbent to a gas mixture that contains carbon dioxide to effect adsorption of the carbon dioxide by the sorbent; andtreating the sorbent that contains adsorbed carbon dioxide under conditions sufficient to release the adsorbed carbon dioxide either at a higher carbon dioxide concentration or as purified carbon dioxide;wherein the sorbent has a sufficiently high surface area for solid-gas contact and sufficient structural integrity for adsorbing carbon dioxide from the gas mixture without degrading, the sorbent comprising a modified polyamine which is supported upon and within a solid support, with the modified polyamine formed as a reaction product that includes amine functionalities from reaction of an excess of amine and an epoxide, and with the solid support being (a) a nano-structured support of silica, silica-alumina, alumina, titanium oxide, calcium silicate, carbon nanotubes, carbon, or a mixture thereof and having a primary particle size of less than about 100 nm; or (b) a natural or synthetic clay or a mixture thereof.2. The method of claim 1 , wherein the sorbent is provided in a fixed claim 1 , moving claim 1 , or fluidized bed and the gas and bed are in contact for a sufficient time to trap the carbon dioxide in the sorbent claim 1 , wherein the sorbent is treated with sufficient heat claim 1 , reduced pressure claim ...

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Номер записи: 75
06-06-2019 дата публикации

1-HYDROXYMETHYL-1,2,2,6-TETRAMETHYL-CYCLOHEXANE AND DERIVATIVES THEREOF AND THEIR USE AS AROMA CHEMICALS

Номер: US20190169108A1
Автор: ARDEKAR Sadanand, GUPTE Nitin, Hickmann Volker, HINDALEKAR Shrirang, KADAM Mileen, PELZER Ralf, RUEDENAUER Stefan, Swaminathan Vijay Narayanan
Принадлежит:

The invention relates to compounds of formula (A) as defined herein, and esters of the compound of formula (A), and ketones of the compound of formula (A). The invention further relates to a method for preparing compounds of formula (A) and esters of the compound of formula (A), and ketones of the compound of formula (A). The invention further relates to the use of at least one compound selected from compounds of formula (A) and the esters of a compound of formula (A) and the ketones of a compound of formula (A) as aroma chemical. 7. The method according to claim 5 , for preparing a compound of formula (A.b) claim 5 , wherein in step iib) claim 5 , the nucleophilic agent is selected from metal C-C-alkyl compounds and metal C-C-alkenyl compounds claim 5 , which comprise at least one ligand R.10. The use of a compound according to as aroma chemical.13. The perfumed or aromatized product according to claim 12 , wherein the product is preferably selected from scent dispensers and fragrances perfumes claim 12 , detergents and cleaners claim 12 , cosmetic compositions claim 12 , body care compositions claim 12 , hygiene articles claim 12 , products for oral and dental hygiene claim 12 , scent dispensers claim 12 , fragrances claim 12 , pharmaceutical compositions and crop protection compositions. Despite a large number of existing aroma chemicals (fragrances and flavorings), there is a constant need for new components in order to be able to satisfy the multitude of properties desired for extremely diverse areas of application. These include, firstly, the organoleptic properties, i.e. the compounds should have advantageous odiferous (olfactory) or gustatory properties. Furthermore, aroma chemicals should, however, also have additional positive secondary properties, such as e.g. an efficient preparation method, the possibility of providing better sensory profiles as a result of synergistic effects with other fragrances, a higher stability under certain application ...

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Номер записи: 76
02-07-2015 дата публикации

RELATING TO EPOXIDATION CATALYSTS

Номер: US20150182959A1
Автор: Nenu Nicoleta Cristina
Принадлежит:

A process for the preparation of a titanium-based catalyst active in epoxidation reactions, which process comprises the steps of: 1. A process for the preparation of a titanium-based catalyst active in epoxidation reactions , which process comprises the steps of:(a) impregnating a silica carrier with a liquid solution of a titanium compound in an inorganic solvent system, to form an impregnated silica carrier bearing the solution of the titanium compound;(b) drying the impregnated silica carrier obtained in step (a);(c) calcining the product obtained in step (b) at a temperature of at most 750° C.; and(d) silylating the product obtained in step (c), to give a titanium-based catalyst active in epoxidation reactions.2. The process of claim 1 , wherein the inorganic solvent system comprises water.3. The process of claim 2 , wherein the inorganic solvent system comprises water combined with sulphuric acid or ammonia.4. The process of claim 1 , wherein the titanium compound is a titanium(IV) compound.5. The process of claim 1 , wherein the titanium compound is a titanium complex comprising one or more organic ligands.6. The process of claim 5 , wherein the titanium compound is titanium(IV) bis(ammonium lactato)-dihydroxide.7. The process of claim 1 , wherein the titanium compound is titanium(IV) oxysulphate.8. The process of claim 1 , wherein the solution of the titanium compound has a pH of from 6 to 9.9. The process of claim 1 , wherein the solution of the titanium compound has a pH of less than 5.10. The process of claim 1 , wherein step (a) is carried out by pore volume impregnation.11. A titanium-based catalyst active in epoxidation claim 1 , which is obtainable by the process according to .12. A process for the preparation of an epoxide claim 1 , which process comprises contacting a hydroperoxide and an alkene with a titanium-based catalyst prepared in accordance with the process of claim 1 , and withdrawing a product stream comprising an epoxide and an alcohol and ...

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Номер записи: 77
28-06-2018 дата публикации

OXIDATIVE COUPLING OF METHANE METHODS AND SYSTEMS

Номер: US20180179125A1
Автор: Bridges Robert, Cizeron Joel, Duggal Suchia, LAKHAPATRI Satish, McCormick Jarod, Patel Bipinkumar, Radaelli Guido, Rafique Humera A., Vuddagiri Srinivas
Принадлежит:

The present disclosure provides natural gas and petrochemical processing systems including oxidative coupling of methane reactor systems that integrate process inputs and outputs to cooperatively utilize different inputs and outputs of the various systems in the production of higher hydrocarbons from natural gas and other hydrocarbon feedstocks. 1252.-. (canceled)253. A method for producing methanol (MeOH) and hydrocarbon compounds containing at least two carbon atoms (C compounds) , comprising:{'sub': 4', '2', '2+', '2', '4, '(a) directing methane (CH) and oxygen (O) into an oxidative coupling of methane (OCM) reactor to produce a product stream comprising the C compounds, carbon monoxide (CO) and/or carbon dioxide (CO), and un-reacted CH;'}{'sub': 2', '2', '2, '(b) generating an effluent stream comprising the CO and/or COfrom the product stream, wherein a concertation of the CO and/or COin the effluent stream is greater than a concentration of CO and/or COin the product stream; and'}(c) directing the effluent stream to an MeOH reactor to produce MeOH.254. The method of claim 253 , further comprising generating a CHstream comprising the un-reacted CHfrom the product stream claim 253 , wherein a concentration of the un-reacted CHin the CHstream is greater than a concentration of the un-reacted CHin the product stream.255. The method of claim 254 , further comprising directing at least a portion of the CHstream to a steam methane reformer (SMR) that produces hydrogen (H) and CO and/or CO claim 254 , wherein at least a portion of the CO and/or COis used to produce MeOH.256. The method of claim 255 , further comprising directing the CO and/or COproduced in the SMR to the MeOH reactor.257. The method of claim 256 , wherein all of the CO and/or COfrom the product stream and all of the CO and/or COfrom the SMR is converted to MeOH in the MeOH reactor.258. The method of claim 255 , wherein the un-reacted CHis provided as fuel to the SMR.259. The method of claim 255 , ...

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Номер записи: 78
28-06-2018 дата публикации

CATALYST FOR PRODUCING METHANOL PRECURSOR, METHANOL PRECURSOR PRODUCED USING THE CATALYST AND METHANOL PRODUCED USING THE METHANOL PRECURSOR

Номер: US20180179130A1
Автор: CHOO Hyunah, DANG Tran Huyen, HONG Soon Hyeok, LEE Dabon, Lee Hyun Joo, LEE Jieon, Lee Sang Deuk, YEO Seungmi
Принадлежит: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Disclosed is a novel catalyst for producing a methanol precursor. The use of the catalyst enables the production of a methanol precursor and methanol with high efficiency under low temperature and low pressure conditions. Also disclosed are a methanol precursor produced using the catalyst and methanol produced using the methanol precursor. 2. The catalyst according to claim 1 , wherein R and R′ in Formula 1 and R″ in Formula 2 are each independently substituted with one or more atoms or groups selected from the group consisting of a hydrogen atom claim 1 , a cyano group claim 1 , halogen atoms claim 1 , a hydroxyl group claim 1 , a nitro group claim 1 , C-Calkyl groups claim 1 , and C-Calkoxy groups.4. A methanol precursor produced by reacting the catalyst according to with methane gas in an acid solution.5. The methanol precursor according to claim 4 , wherein the catalyst is mixed with the acid solution in a weight ratio of 0.000001-0.1:1.6. The methanol precursor according to claim 4 , wherein the methanol precursor is a methyl ester.7. The methanol precursor according to claim 4 , wherein the acid solution is an aqueous sulfuric acid solution or fuming sulfuric acid containing 1 to 60% by weight of SO.8. A functional derivative produced by reacting the methanol precursor according to with a nucleophile.9. The functional derivative according to claim 8 , wherein the nucleophile is water and the functional derivative is methanol.10. A method for producing a methanol precursor claim 1 , comprising (A) mixing the catalyst according to with an acid solution and supplying methane gas at a pressure of 10 to 50 bar to the mixture.11. The method according to claim 10 , wherein step (A) is carried out at a temperature of 150 to 300° C.12. A method for producing methanol claim 1 , comprising (A) mixing the catalyst according to with an acid solution and supplying methane gas at a pressure of 10 to 50 bar to the mixture to produce a methanol precursor and (B) reacting the ...

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Номер записи: 79
13-06-2019 дата публикации

OZONE-FACILITATED SELECTIVE OXIDATION OF ALKANES IN LIQUID CARBON DIOXIDE

Номер: US20190177254A1
Автор: Danby Andrew M., Lundin Michael D., Subramaniam Bala
Принадлежит:

A process for the ozonolysis of an alkane may comprise combining an alkane and ozone in a liquid phase medium comprising COunder conditions sufficient to oxidize the alkane to produce one or more non-combustion products. The liquid phase medium may be free of a super acid. 1. A process for the ozonolysis of an alkane , the process comprising combining an alkane and ozone in a liquid phase medium comprising COunder conditions sufficient to oxidize the alkane to produce one or more non-combustion products , wherein the liquid phase medium is free of a super acid.2. The process of claim 1 , wherein the alkane is a C1-C10 alkane.3. The process of claim 2 , wherein the alkane is selected from methane claim 2 , ethane claim 2 , propane claim 2 , iso-butane claim 2 , dimethyl propane claim 2 , heptane claim 2 , iso-octane claim 2 , cyclohexane claim 2 , and combinations thereof.4. The process of claim 2 , wherein the alkane is methane and the one or more non-combustion products comprise methanol.5. The process of claim 2 , wherein the alkane is n-heptane and the one or more non-combustion products comprise 4-heptanone claim 2 , 3-heptanone claim 2 , and 2-heptanone.6. The process of claim 2 , wherein the alkane is cyclohexane and the one or more non-combustion products comprise cyclohexanone and cyclohexanol.7. The process of claim 1 , wherein the liquid phase medium is liquid CO.8. The process of claim 1 , wherein the process is carried out in the presence of a catalyst capable of generating an active species derived from the ozone and the conditions are sufficient to generate the active species.9. The process of claim 8 , wherein the catalyst is a supported transition metal catalyst comprising transition metals incorporated into a metal oxide substrate claim 8 , wherein the metal oxide substrate is an oxide of a metal selected from aluminum claim 8 , silicon claim 8 , titanium claim 8 , and magnesium.10. The process of claim 9 , wherein the supported transition metal ...

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Номер записи: 80
29-06-2017 дата публикации

PROCESS FOR PRODUCING 2,6-DIMETHYL-5-HEPTEN-1-AL

Номер: US20170183280A1
Автор: PELZER Ralf, Schneider Daniel, TELES Joaquim H., Vautravers Nicolas
Принадлежит:

The present invention relates to a process for producing 2,6-dimethyl-5-hepten-1-al, which comprises reacting 3,7-dimethyl-1,6-octadiene (dihydromyrcene, beta-citronellene) with NO in a solvent or solvent mixture containing at least one solvent having a proton-donating functional group. 110.-. (canceled)11. A process for preparing 2 ,6-dimethyl-5-hepten-1-al , which comprises reacting 3 ,7-dimethyl-1 ,6-octadiene with NO in a solvent or solvent mixture containing at least one solvent having a proton-donating functional group.12. The process of claim 11 , wherein the solvent having a proton-donating functional group is an aliphatic alcohol.13. The process of claim 11 , wherein the solvent having a proton-donating functional group is a C-C-alkanol.14. The process of claim 11 , wherein the solvent having a proton-donating functional group is methanol.15. The process of claim 11 , wherein the amount of solvent having a proton-donating functional group is present in an amount of 6 to 40 mol per 1 mol of 3 claim 11 ,7-dimethyl-1 claim 11 ,6-octadiene.16. The process of claim 11 , wherein the concentration of 3 claim 11 ,7-dimethyl-1 claim 11 ,6-octadiene in the solvent or solvent mixture is from 10 to 40% by weight claim 11 , based on the total weight of solvent or solvent mixture and 3 claim 11 ,7-dimethyl-1 claim 11 ,6-octadiene.17. The process of claim 11 , wherein the reaction of 3 claim 11 ,7-dimethyl-1 claim 11 ,6-octadiene with NO is performed until the conversion of 3 claim 11 ,7-dimethyl-1 claim 11 ,6-octadiene is in the range of from 3 to 20%.18. The process of claim 11 , wherein the reaction is performed at a pressure in the range of 5 to 400 bar.19. The process of wherein the molar ratio of NO to 3 claim 11 ,7-dimethyl-1 claim 11 ,6-octadiene is in the range from1:20 to 4:1.20. The process of claim 11 , wherein the molar ratio of NO to 3 claim 11 ,7-dimethyl-1 claim 11 ,6-octadiene is in the range from 1:10 to 1:1.21. The process of claim 14 , wherein the ...

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Номер записи: 81
06-07-2017 дата публикации

PLASMA ARC FURNACE AND APPLICATIONS

Номер: US20170190647A1
Автор: Cunningham Stephen L., Stuart Martin A.
Принадлежит:

A Plasma Arc Reformer for creating a useful fuel, such as Methanol, using any of Methane, Municipal Solid Waste, farm or forest waste, coal orchar rock from oil shale production, petrochemical hydrocarbons, (any carbon containing charge), water, and/or Municipal Sewage, as the source material. A High temperature Plasma Arc de-polymerizes the source material into atoms which, upon partial cooling, creates a gas stream rich in CO and H(syngas). Subsequent molecular filter and catalyst stages in the system remove contaminants and produce the output fuel. The system is closed loop with regard to the syngas production in that it recycles the residual unconverted gas and even the exhaust gases if desired. The large amount of heat produced is captured and converted to electric power using a supercritical CORankin cycle resulting in potentially high efficiencies. 1. A method of converting a source fuel into an output fuel using a reformer , said method comprising the steps of:inputting a source fuel into the reformer;inputting a feed material into the reformer;providing one or more heat sources in the reformer for breaking down said source fuel and said feed material into one or more constituent components and/or combinations thereof;converting at least a portion of said one or more constituent components of the feed material and the source fuel and/or the combinations thereof into said output fuel using one or more catalysts;extracting excess heat from the conversion process for performing useful work; andoutputting said output fuel from the reformer.2. The method of claim 1 , wherein the step of extracting excess heat includes generating electricity using a Rankin engine.3. The method of claim 2 , wherein said Rankin engine is an oscillating disk piston engine driving a generator.4. The method of claim 2 , wherein said Rankin engine is driven by carbon dioxide.5. The method of claim 2 , wherein said Rankin engine is driven by super critical carbon dioxide.6. The method of ...

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Номер записи: 82
14-07-2016 дата публикации

REGENERATIVE ADSORBENTS OF MODIFIED AMINES ON SOLID SUPPORTS

Номер: US20160199810A1
Автор: GOEPPERT Alain, Olah George A., Prakash G.K. Surya, Zhang Hang
Принадлежит:

The invention relates to regenerative, solid sorbents for adsorbing carbon dioxide from a gas mixture, including air, with the sorbent including a modified polyamine and a solid support. The modified polyamine is the reaction product of an amine and an epoxide. The sorbent provides structural integrity, as well as high selectivity and increased capacity for efficiently capturing carbon dioxide from gas mixtures, including the air. The sorbent is regenerative, and can be used through multiple cycles of adsorption-desorption. 1. A solid sorbent for adsorbing carbon dioxide from a gas mixture , comprising a modified polyamine which is supported upon and within or bound to a solid support , wherein the modified polyamine is the reaction product of an amine and an epoxide.2. The sorbent according to claim 1 , wherein the solid support is (a) a nano-structured support of silica claim 1 , silica-alumina claim 1 , alumina claim 1 , titanium oxide claim 1 , calcium silicate claim 1 , carbon nanotubes claim 1 , carbon claim 1 , or a mixture thereof and having a primary particle size less than about 100 nm claim 1 , between 3 and 50 nm claim 1 , between 3 and 30 nm or between 3 and 15 nm; or (b) a natural or synthetic clay or a mixture thereof.3. The sorbent according to claim 1 , wherein the modified polyamine is the reaction product of an excess of amine with an epoxide claim 1 , to provide a material with sufficient amine functionalities affording optimum COadsorption properties.4. The sorbent according to claim 1 , wherein the amine is a primary claim 1 , secondary or tertiary alkyl- or alkanolamine claim 1 , an aromatic amine claim 1 , a mixed amine claim 1 , or a combination thereof claim 1 , such as tetraethylenepentamine claim 1 , pentaethylenehexamine claim 1 , triethylenetetramine claim 1 , diethylenetriamine claim 1 , ethylenediamine claim 1 , hexaethyleneheptamine claim 1 , a polyethylenimine claim 1 , a polyvinylamine claim 1 , polyallylamine claim 1 , other ...

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Номер записи: 83
13-07-2017 дата публикации

PRODUCTION METHOD FOR GAMMA, DELTA-UNSATURATED ALCOHOLS

Номер: US20170197895A1
Автор: Suzuki Yutaka
Принадлежит: KURARAY CO., LTD.

Provided is a method from which a γ,δ-unsaturated alcohol having a much more smaller amount of inclusion of formic acid and a formic acid ester and having a high purity can be obtained in a high yield. Specifically, provided is a method for producing a γ,δ-unsaturated alcohol by causing a reaction between an α-olefin and formaldehyde, the method including a step of bringing a reaction liquid obtained through the reaction into contact with an alkaline aqueous solution so as to provide an aqueous solution having pH of 9 to 13. 2. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein an alkali in the alkaline aqueous solution is at least one selected from an alkali metal hydroxide claim 1 , an alkali metal carbonate claim 1 , an alkali metal acetate claim 1 , an alkali metal phosphate claim 1 , an alkaline earth metal hydroxide claim 1 , an alkaline earth metal carbonate claim 1 , an alkaline earth metal acetate claim 1 , and an alkaline earth metal phosphate.3. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein a concentration of the alkali in the alkaline aqueous solution is 0.01 to 20 mol/L.4. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein a temperature on the occasion of bringing the reaction liquid into contact with the alkaline aqueous solution is 10 to 90° C.5. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein the contact between the reaction liquid and the alkaline aqueous solution is performed in a counter-current mode.6. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein after bringing the reaction liquid into contact with the alkaline aqueous solution claim 1 , purification by distillation is performed.7. The method for producing a γ claim 1 ,δ-unsaturated alcohol according to claim 1 , wherein Ris an alkyl group having 1 to 5 carbon atoms.8. The method for ...

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Номер записи: 84
27-06-2019 дата публикации

METHOD FOR PRODUCING 3,7-DIMETHYL-7-OCTENOL AND METHOD FOR PRODUCING 3,7-DIMETHYL-7-OCTENYL CARBOXYLATE COMPOUND

Номер: US20190194099A1
Автор: Fujii Tatsuya, Kinsho Takeshi
Принадлежит: SHIN-ETSU CHEMICAL CO., LTD.

Methods selectively and efficiently produce 3,7-dimethyl-7-octenol and a carboxylic acid ester thereof. More specifically, a method produces 3,7-dimethyl-7-octenol, including steps of: subjecting a 3-methyl-3-butenyl nucleophilic reagent (2) and a 1,3-dihalo-2-methylpropane compound (3) to a coupling reaction to obtain a 2,6-dimethyl-6-heptenyl halide compound (4); converting the compound (4) into a 2,6-dimethyl-6-heptenyl nucleophilic reagent (5); and subjecting the nucleophilic reagent (5) to an addition reaction with at least one electrophilic reagent selected from the group made of formaldehyde, paraformaldehyde and 1,3,5-trioxane, followed by a hydrolysis reaction to obtain 3,7-dimethyl-7-octenol (6); and the other method. The invention relates to a method for producing 3,7-dimethyl-7-octenol and a method for producing a 3,7-dimethyl-7-octenyl carboxylate compound.3,7-Dimethyl-7-octenol has a rose-like aroma and is widely applied in floral compounded perfumes and fruit flavors.3,7-Dimethyl-7-octenol is commercially available, but a commercial product may be an optically active scalemic mixture which has been separated from natural geranium oil and contains an excess amount of one enantiomer, or may be a mixture containing geraniol (i.e. 3,7-dimethyl-2,6-octadienol), 3,7-dimethyl-6-octanol, or linalool as an impurity. Some commercially available products of 3,7-dimethyl-7-octenol are confused in terms of product names depending on suppliers or raw materials. Products available under the name of rhodinol, cc-citronellol or the like may be a mixture of (S)-3,7-dimethyl-7-octenol or 3,7-dimethyl-6-octenol as a main component with various monoterpene alcohols. Hence, chemically pure 3,7-dimethyl-7-octenol, especially the (+)-3,7-dimethyl-7-octenol, is difficult to obtain, and there is a strong demand for the method for selectively and efficiently synthesizing chemically pure (1)-3,7-dimethyl-7-octenol.3,7-Dimethyl-7-octenyl carboxylates, which are carboxylic acid ...

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Номер записи: 85
20-07-2017 дата публикации

CHIRAL DIAMINE COMPOUNDS FOR THE PREPARATION OF CHIRAL ALCOHOLS AND CHIRAL AMINES

Номер: US20170204036A1
Автор: BIESZCZAD Bartosz, GILHEANY Declan
Принадлежит:

A process for the stereoselective preparation of a chiral alcohol or a chiral amine, the process comprising reacting a first prochiral reactant selected from the group consisting of a ketone, an aldehyde, and an imine, with a second reactant comprising a Grignard reagent, in the presence of a chiral trans-diamine of formula (1) as defined herein: 2. The process according to claim 1 , wherein the ketone claim 1 , aldehyde or imine is formed in-situ.3. The process according to claim 1 , wherein Ra and Rb together define a C-Ccycloalkyl group.4. The process according to claim 3 , wherein the cycloalkyl group is cyclohexane or cyclopentane.5. The process according to claim 1 , wherein Ra and Rb are each independently an alkyl or an aryl group.6. The process according to claim 5 , wherein Ra and Rb are each independently phenyl claim 5 , methyl or tert-butyl.7. The process according to claim 1 , wherein Rc is a Calkyl group.8. The process according to claim 1 , wherein Rd is a Calkyl group.9. The process according to claim 1 , wherein Rd and Re together define an imidazolidine ring with the two N atoms.10. The process according to claim 1 , wherein Re is a Calkyl group.11. The process according to claim 1 , wherein n is 1.12. The process according to claim 1 , wherein Rf is an alkyl or aryl group.13. The process according to claim 12 , wherein Rf is a tert-butyl group.14. The process according to claim 12 , wherein Rf is an aryl group which is substituted by at least one substituent selected from hydroxy claim 12 , alkoxy claim 12 , amino claim 12 , aminoalkyl claim 12 , thiol claim 12 , halo claim 12 , haloalkyl claim 12 , haloalkoxy claim 12 , alkyl claim 12 , cycloalkyl claim 12 , alkenyl claim 12 , cycloalkenyl claim 12 , alkynyl claim 12 , aryl claim 12 , heterocyclyl claim 12 , cyano claim 12 , nitro claim 12 , silyl claim 12 , sulfanyl claim 12 , phosphanyl and CF.16. The process according to claim 15 , wherein Rii and Riv are both hydrogen.17. The process ...

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Номер записи: 86
02-10-2014 дата публикации

Alkane oxidation

Номер: US20140296578A1
Автор: Andrew W. Korinda, Justin M. Notestein, Nicholas J. SCHOENFELDT
Принадлежит: Northwestern University

Embodiments include an alkane oxidation catalyst having a support modified with a carboxylate group. The carboxylate group is functionalized with a manganese complex selected from the group consisting of [(C 6 H 12 N 3 R 3 )Mn(OCH 3 ) 3 ]Z, [(C 6 H 12 N 3 R 3 )Mn 2 O 3 ]Z 2 , [(C 6 H 15 N 3 )Mn 4 O 6 ]Z 4 . Each R is independently an alkyl group having 1 to 3 carbons, and each Z is independently PF 6 − , ClO 4 − , or Br − .

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Номер записи: 87
02-10-2014 дата публикации

ETHERS OF BIS (HYDROXYMETHYL) CYCLOHEXANES

Номер: US20140296579A1
Автор: Biel Markus Christian, Fournier Pierre, Merten Roland, PELZER Ralf
Принадлежит: BASF SE

The present invention relates to ethers of 1,2-, 1,3- and 1,4-bis(hydroxymethyl)cyclohexanes, to the preparation of such ethers and also to the use of such ethers as fragrances and as formulation auxiliaries in fragrance-comprising preparations. 131-. (canceled)33. The cyclohexane derivative according to claim 32 , wherein the cyclohexane derivative is selected from 1 claim 32 ,4-bis(ethoxymethyl)cyclohexane claim 32 , 1 claim 32 ,4-bis(n-propoxymethyl)cyclohexane claim 32 , 1 claim 32 ,4-bis(isopropoxymethyl)cyclohexane and 1 claim 32 ,4-bis(tert-butoxymethyl)cyclohexane.34. The cyclohexane derivative according to claim 32 , having a cis/trans ratio of at least 70/30.35. The cyclohexane derivative according to claim 32 , having a trans/cis ratio of at least 70/30.37. Detergents claim 36 , cosmetic preparations claim 36 , fragranced hygiene articles claim 36 , foods claim 36 , food supplements claim 36 , fragrance dispensers claim 36 , perfumes claim 36 , pharmaceutical preparations claim 36 , crop protection compositions claim 36 , comprising the fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according to .38. A formulating agent in preparations which comprise fragrances and/or flavors claim 36 , said formulating agent comprising the fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according to .39. The fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according to which comprises a compound of the formula 1a.40. The fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according claim 36 , to claim 36 , where R1 and R2 are C1- to C4-alkyl.41. The fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according claim 36 , to claim 36 , where R3 claim 36 , R4 claim 36 , R5 claim 36 , and R6 claim 36 , are hydrogen or methyl.42. The fragrance claim 36 , flavor claim 36 , or formulation auxiliary claim 36 , according to claim 36 , where R1 and R2 ...

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Номер записи: 88
06-08-2015 дата публикации

CATALYTIC REDUCTIVE CLEAVAGE OF A B-O-4 BOND OF ETHERS OR POLYETHERS SUCH AS LIGNIN

Номер: US20150218073A1
Автор: Galkin Maxim, LÖFSTEDT Joakim, SAMEC Joseph
Принадлежит:

The present invention relates to a method of cleaving a β-O-4 bond to the corresponding C—H bond in a substrate, by use of a hydrogen donor and a metal catalyst in a solvent. Thereby it is possible to depolymerize a polymer having a repeating β-O-4 bond. 1. A method of cleaving a β-O-4 bond in a substrate comprisingproviding a substrate, a hydrogen donor, a transition metal based catalyst and at least one solvent, wherein the hydrogen donor is an alcohol and/or formic acid;forming a mixture of the substrate, the hydrogen donor, the metal catalyst and the solvent; andletting the mixture react in order to cleave the β-O-4 bond in the substrate at a temperature of not higher than 200° C.wherein the substrate is a biopolymer.2. The method according to wherein the hydrogen donor is selected from glycol claim 1 , glucose claim 1 , glycerol claim 1 , ethanol claim 1 , methanol claim 1 , butanol or isopropanol or mixtures thereof.3. The method according to wherein the solvent is polar or non-polar and wherein the solvent may be protic or aprotic.4. The method according to wherein the solvent is water when formic acid is used as a hydrogen donor.5. The method according to in which the reaction is conducted at a temperature of at least 25° C. claim 1 , preferably 70-120° C.6. The method according wherein the catalyst is based on nickel claim 1 , such as Raney nickel or nickel on carbon claim 1 , or a palladium based catalyst.7. The method according to wherein the amount of catalyst is a catalytic amount claim 1 , or 1 equivalent or more claim 1 , or 1.5 equivalents or more claim 1 , or 2 equivalents or more claim 1 , or 3 equivalents or more.8. The method according to claim 1 , in which the substrate is an ether.9. The method according to wherein the substrate is lignin.10. The method according to wherein the substrate is a polymer or a biopolymer such as lignin claim 1 , from a pulping process.11. The method according to wherein the substrate is a polymer or a biopolymer ...

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Номер записи: 89
26-07-2018 дата публикации

PROCESS FOR THE SYNTHESIS OF 9,9-BIS(HYDROXYMETHYL)FLUORENE

Номер: US20180208530A1
Автор: Sainani Jaiprakash Brijlal
Принадлежит: Sabic Global Technologies B.V.

The present invention relates to a novel process for the synthesis of 9,9-bis(hydroxymethyl)fluorene. The syntheses from fluorene to 9,9-bis(hydroxymethyl)fluorene via a hydroxymethylation and further to 9,9-bis(methoxymethyl)fluorene via a etherification are known. 9,9-bis(methoxymethyl)fluorene is a compound that is used as an electron donor for Ziegler-Natta catalysts. The present invention is related to an improvement in the synthesis of 9,9-bis(hydroxymethyl)fluorene leading to a decrease in the amount of solvent used and an easier work up while achieving high yield and purity. 1. A process for the synthesis of 9 ,9-bis(hydroxymethyl)fluorene from fluorene comprising providing a mixture of paraformaldehyde , dimethylsulfoxide and a sodium alkoxide and adding fluorene to said mixture to obtain 9 ,9-bis(hydroxymethyl)fluorene , wherein fluorene is added as a solid.2. The process according to claim 1 , wherein fluorene is added in the form of a powder.3. The process according to claim 1 , wherein dimethylsulfoxide is present in an amount of at most 1250 milliliters per mole of fluorene used.4. The process according to claim 1 , wherein paraformaldehyde is used in an amount of between 1.8 and 2.6 mole per mole of fluorene used.5. The process according to claim 1 , wherein said sodium alkoxide is selected from sodium methoxide and sodium ethoxide.6. The process according to claim 1 , wherein said sodium alkoxide is used as a sodium alkoxide solution in an alcoholic solution.7. The process according to claim 1 , comprising the following steps:a) providing a mixture of paraformaldehyde and dimethylsulfoxide;b) adding a sodium alkoxide solution in an alcoholic solvent to the mixture of step a);c) adding fluorene as a solid to the mixture obtained in step b);d) allowing the mixture obtained in step c) to react;e) quenching the mixture obtained in step d) by adding an acid;f) mixing the mixture obtained in step e) with water to obtain a suspension of crude 9,9-bis( ...

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Номер записи: 90
09-10-2014 дата публикации

SELECTIVE OXYGENATION OF ALKANES USING OXYGEN

Номер: US20140303400A1
Автор: Dimitratos Nikolaos, Forde Michael M., Hutchings Graham J., Lopez - Sanchez Jose A.
Принадлежит: UNIVERSITY COLLEGE CARDIFF CONSULTANTS LIMITED

A process for the complete or partial oxygenation of hydrocarbons comprises contacting a C-Chydrocarbon, molecular oxygen, and hydrogen peroxide, in the presence of water and a heterogeneous catalyst, under conditions suitable to convert the C-Chydrocarbon to at least one corresponding C-Coxygenate product, wherein the heterogeneous catalyst provides confinement and contains both Brønsted-Lowry acid centers and Lewis acid centers. The reaction may be carried out at a temperature ranging from 2° C. to 90° C. The use of molecular oxygen increases the economic attractiveness of the process while also improving yield. 1. A process for the complete or partial oxygenation of hydrocarbons , comprising contacting a C-Calkane , molecular oxygen , and hydrogen peroxide , in the presence of water and a heterogeneous catalyst , under conditions suitable to convert the C-Calkane to at least one corresponding C-Coxygenate product , wherein the heterogeneous catalyst provides confinement of the C-Calkane molecule , contains both Brønsted-Lowry acid centers and Lewis acid centers , and is selected from iron modified heterogeneous catalysts; and the conditions include a total system pressure of at least 0.81 megapascals.2. The process of claim 1 , wherein the conditions include a temperature from 2° C. to 90° C.3. The process of claim 1 , wherein the conditions include a total system pressure of from 0.81 megapascals to 14.19 megapascals.4. The process of claim 1 , wherein the C-Calkane is methane and the methane oxygenate product is selected from methanol claim 1 , formic acid claim 1 , methyl hydroperoxide claim 1 , formaldehyde claim 1 , and combinations thereof.5. The process of claim 1 , wherein the conditions include the C-Calkane and the hydrogen peroxide being in a phase selected from (a) a condensed phase; (b) a gas phase; and (c) a combination thereof.6. The process of claim 1 , wherein the catalyst includes silicon claim 1 , oxygen claim 1 , and optionally a second ...

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Номер записи: 91
11-07-2019 дата публикации

CATALYSTS MADE WITH MANGANESE TUNGSTEN OXIDE FOR THE OXIDATIVE COUPLING OF METHANE

Номер: US20190210006A1
Автор: Liang Wugeng, SARSANI Sagar, WEST David
Принадлежит:

Disclosed is a supported catalyst and methods to prepare and use the supported catalyst in an oxidative coupling of methane (OCM) reaction. The supported catalyst can contain MnWOor MnWOnanostructures that are in contact with the surface of a sodium containing silicon dioxide support material. The supported MnWOcatalyst can have an active MnWOcrystal phase. 1. A supported MnWOcatalyst comprising:{'sub': '2', 'a silicon dioxide (SiO) support material comprising sodium (Na); and'}{'sub': 4', '2, 'manganese tungsten tetroxide (MnWO) in contact with the SiOsupport material.'}2. The supported catalyst of claim 1 , wherein the molar ratio of Mn to W is 1:1.3. The catalyst of claim 1 , wherein the supported catalyst comprises a MnWOcrystal phase.4. The supported catalyst of claim 1 , wherein the Mn and W are chemically bound together or are in close proximity with one another.5. The supported catalyst of claim 1 , wherein the MnWOis MnWOnanostructures claim 1 , and wherein the nanostructures have at least one dimension of 1 nm to 1000 nm claim 1 , 25 nm to 500 nm claim 1 , or 30 nm to 200 nm.6. The supported catalyst of claim 5 , wherein the MnWOnanostructures are nanowires claim 5 , nanoparticles claim 5 , nanorods claim 5 , nanotubes claim 5 , or nanocubes claim 5 , or a combination thereof7. The supported catalyst of claim 6 , wherein the MnWOnanostructures are nanorods having a diameter of 10 nm to 50 nm and/or a length of 150 nm to 250 nm.8. The supported catalyst of claim 1 , wherein the supported catalyst is devoid of a NaWOcrystal phase and devoid of a MnMnSiOcrystal phase.9. The supported catalyst of claim 1 , wherein the catalyst is capable of catalyzing an oxidative coupling of methane reaction.10. The supported catalyst of claim 1 , wherein the MnWOnanostructures are grafted to the surface of the support material.11. A method for preparing the supported MnWOcatalyst of claim 1 , the method comprising:{'sub': 4', '4, '(a) obtaining an aqueous mixture comprising ...

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Номер записи: 92
18-07-2019 дата публикации

CATALYST COMPRISING A MOLECULAR SIEVE BELONGING TO THE ABC-6 FRAMEWORK FAMILY WITH DISORDER IN THE ABC STACKING SEQUENCE AND USE OF THE CATALYST

Номер: US20190217280A1
Автор: Jensen Brian, Lundegaard Lars Fahl, Vennestrøm Peter N. R.
Принадлежит: Haldor Topsoe A/S

Catalyst and use of the catalyst comprising a molecular sieve belonging to the ABC-6 framework family with disorder in the ABC stacking sequence essentially composed of double-six-ring periodic building units and having a mole ratio of silicon oxide to aluminum oxide from about 8 to about 60. 1. Catalyst comprising a molecular sieve belonging to the ABC-6 framework family with disorder in the ABC stacking sequence essentially composed of double-six-ring periodic building units and having a mole ratio of silicon oxide to aluminum oxide from about 8 to about 60.3. The catalyst of claim 1 , wherein the molecular sieve belongs to the disordered CHA-GME series.4. The catalyst according to claim 1 , wherein the amount of stacking disorder of the molecular sieve is between 1 and 99%.5. The catalyst according to claim 1 , wherein crystals of the molecular sieve have a bipyramidal claim 1 , elongated bipyramidal or capped bipyramidal morphology.6. The catalyst according to claim 1 , wherein the silica-to-alumina mole ratio of the molecular sieve is between 8 and 40.7. The catalyst according to claim 1 , wherein the silica-to-alumina mole ratio of the molecular sieve is between 10 and 20.8. The catalyst according to claim 1 , wherein at least a part of the aluminum and/or silicon of the molecular sieve is substituted by one or more metals selected from tin claim 1 , zirconium claim 1 , titanium claim 1 , hafnium claim 1 , germanium claim 1 , boron claim 1 , iron claim 1 , indium and gallium.9. The catalyst according to claim 1 , wherein the catalyst and/or the molecular sieve further comprises copper and/or iron.10. A method for the conversion of nitrogen oxides to nitrogen in presence of a reductant comprising the step of contacting the nitrogen oxides and the reductant with the catalyst according to .11. The method of claim 10 , wherein the reductant comprises hydrocarbons and/or ammonia or a precursor thereof.12. The method of claim 10 , wherein the nitrogen oxides are ...

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Номер записи: 93
13-11-2014 дата публикации

INTEGRATED SYSTEM TECHNIQUE FOR COUPLING FIXED BED AND JET FLUIDIZED BED TO SEPARATOR UNIT

Номер: US20140336407A1
Автор: Gong Xionghui, Wu Pingkeng, Yang Gaodong, Zhang Zhibing, Zhou Zheng
Принадлежит:

A process of integrated system formed by coupling of fixed bed, jetting floating bed, and separating unit, aimed to provide a new process and equipment of higher efficiency, which integrates multi-type reactors and separation is provided. Reaction materials undergo preliminary reaction in fixed bed reactor and intensified reaction in jetting floating bed reactor, and then separation in the subsequent separation system. Unreacted materials will be returned to the raw material intermediate storage tank for mixing with fresh materials, as raw materials for continued reaction. During this process, materials first pass the fixed bed reactor once to achieve certain conversion rate, and then enter the jetting floating bed reactor for intensified reaction. When the product reaches required concentration, the materials will enter subsequent separation equipment for separation. 1. An integrated process formed by coupling reactors of a fixed bed and a jet floating bed with a separating unit , comprising the following steps:Step 1: inputting fresh reactants into an intermediate material storage tank via a first pipeline, using a raw material pump to quantificationally deliver these materials via a first valve, a first flowmeter, a first heat exchanger, and a second pipeline to a fixed bed reactor for preliminary reaction, wherein the reaction materials are then sent to the fixed bed reactor one time and be collected by an intermediate buffer tank, the fixed bed reactor being filled by a required solid catalyst, the height and the degree of finish of which shall be determined according to a particular processing capacity and required residence time;Step 2: using a material pump to deliver the reacted mixture of preliminary reaction in the fixed bed reactor from the intermediate buffer tank to a jet floating bed reactor, via a third valve, a second flowmeter, a second heat exchanger, and a third pipeline, for intensified reaction, the jet floating bed reactor system consists of a ...

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Номер записи: 94
07-09-2017 дата публикации

OXIDATION REACTOR AND PRODUCTION METHOD FOR OXIDE

Номер: US20170252717A1
Автор: MURAI Yoshiyuki, Suzuki Takamasa, Takase Ichiro
Принадлежит: Daicel Corporation

Provided is an oxidation reactor capable of oxidizing hydrocarbons with both good reaction efficiency and good energy efficiency. This oxidation reactor includes a liquid inlet channel, a gas inlet channel, a gas-liquid mixing unit, and a flow reactor. Through the liquid inlet channel, a liquid containing a reaction substrate hydrocarbon is introduced. Through the gas inlet channel, a gas containing oxygen and ozone is introduced. The gas-liquid mixing unit mixes the liquid introduced from the liquid inlet channel with the gas introduced from the gas inlet channel. In the flow reactor, an oxidation catalyst is immobilized or packed. In the oxidation reactor, the flow reactor includes a monolith support and the oxidation catalyst immobilized to or packed in the monolith support. In addition or alternatively, the gas-liquid mixing unit includes a microbubble generator. 1. An oxidation reactor comprising:a liquid inlet channel through which a liquid containing a reaction substrate hydrocarbon is introduced;a gas inlet channel through which a gas containing oxygen and ozone is introduced;a gas-liquid mixing unit that mixes the liquid introduced from the liquid inlet channel with the gas introduced from the gas inlet channel; and a monolith support; and', 'the oxidation catalyst immobilized to or packed in the monolith support, and/or, 'a flow reactor in which an oxidation catalyst is immobilized or packed, the flow reactor comprisingthe gas-liquid mixing unit comprising a microbubble generator.2. The oxidation reactor according to claim 1 , further comprising a gas-liquid separator downstream from the flow reactor.3. The oxidation reactor according to claim 2 , further comprising a circulation channel through which at least part of a liquid separated in the gas-liquid separator is recycled to the gas-liquid mixing unit or to a portion upstream from the gas-liquid mixing unit.4. The oxidation reactor according to claim 2 , further comprisinga circulation channel through ...

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Номер записи: 95
22-08-2019 дата публикации

Process for purifying a co2 stream in order to avoid corrosion by hydrochloric acid

Номер: US20190255478A1
Автор: Dhaneesh VARAPPURATH SUKUMARAN, Satish ANGADI, Selvakumar Subramanian
Принадлежит: SABIC Global Technologies BV

A process for purifying a by-product stream comprising primarily CO2 that emanates from a an ethylene glycol plant, where the by-product stream may contain organic chlorides and water. The process employs an adsorbent to remove one or more organic chlorides from the by-product stream to produce pure or substantially pure CO2. To improve the efficiency of the organic chloride adsorbent, prior to the organic chloride adsorption process, a moisture adsorbent may be employed to remove at least some of the water from the by-product stream.

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Номер записи: 96
04-11-2021 дата публикации

Chromium-Catalyzed Production of Alcohols From Hydrocarbons

Номер: US20210340085A1
Автор: Barr Jared L., Cruz Carlos A., ELLIS William C., MCDANIEL Max P., Monwar Masud M.
Принадлежит:

Processes for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound are disclosed, and these processes include the steps of irradiating the hydrocarbon reactant and a supported chromium catalyst comprising chromium in a hexavalent oxidation state with a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst, and hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound. In addition, these processes can further comprise a step of calcining all or a portion of the reduced chromium catalyst to regenerate the supported chromium catalyst. 119-. (canceled)20. A process for converting a hydrocarbon reactant into an alcohol compound and/or a carbonyl compound , the process comprising:(i) irradiating the hydrocarbon reactant and a supported chromium catalyst comprising chromium in a hexavalent oxidation state with at least about 10,000 lux of a light beam at a wavelength in the UV-visible spectrum to reduce at least a portion of the supported chromium catalyst to form a reduced chromium catalyst; and(ii) hydrolyzing the reduced chromium catalyst to form a reaction product comprising the alcohol compound and/or the carbonyl compound.21. The process of claim 20 , wherein:the supported chromium catalyst contains from about 0.01 to about 50 wt. % of chromium, based on the weight of the supported chromium catalyst; andthe reduced chromium catalyst contains chromium having an average valence of less than or equal to about 5.25.22. The process of claim 20 , wherein the process comprises:contacting the hydrocarbon reactant with a fluidized bed of the supported chromium catalyst, and irradiating while contacting; orcontacting the hydrocarbon reactant with a fixed bed of the supported chromium catalyst, and irradiating while contacting.23. The process of claim 20 , wherein:hydrolyzing ...

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Номер записи: 97
11-12-2014 дата публикации

Process for preparing a mixture of alcohols

Номер: US20140364351A1
Автор: Didier Morvan, Gerald Bocquenet, Jun Kubo, Loic Baussaron, Philippe Marion, Roland Jacquot, Tetsuya Yoshioka, Virginie Belliere-Baca
Принадлежит: Rhodia Operations SAS

A method for preparing a mixture (M) including at least one alcohol (Aj), wherein said method includes a gas-phase oligomerization reaction of at least one alcohol (Ai) with a solid acid-base catalyst doped with one or more metals, said reaction being carried out in the presence of hydrogen and at a temperature of no less than 50° C. and strictly less than 200° C.

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Номер записи: 98
28-09-2017 дата публикации

PROCESS FOR THE FUNCTIONALIZATION OF HETEROALKANES AND ARENES

Номер: US20170275222A1
Автор: HASHIGUCHI Brian G., KONNICK Michael M., PERIANA Roy A.
Принадлежит: The Scripps Research Institute

Provided are methods and materials for the functionalization of a heteroalkane or arene using an oxidizing electrophile as a stoichiometric agent or catalyst. The reaction involves the replacement of a hydrogen atom on an sp3-hybridized carbon atom of the heteroalkane or of a hydrogen atom on an sp2-hybridized carbon atom of the arene. A main group element organometallic intermediate is formed that undergoes further conversion to a functionalized heteroalkane or arene. 1. A process of preparing a functionalized compound , comprising:(a) providing a compound that is a heteroalkane or an arene, wherein{'sup': '3', 'the heteroalkane comprises at least one sp-hybridized carbon atom bearing a hydrogen atom and at least one heteroatom other than a carbon or hydrogen atom, and'}{'sup': '2', 'claim-text': [{'sup': '3', '(i) one or more sp-hybridized carbon atoms,'}, '(ii) one or more heteroatoms, or', '(iii) both (i) and (ii),, 'the arene comprises at least one sp-hybridized carbon atom bearing a hydrogen, and optionally comprising'} (i) an oxidizing electrophile comprising a main group element in oxidized form, or', '(ii) an oxidant and a reduced form of the oxidizing electrophile, to provide an initial reaction product, and, '(b) contacting the compound with'}(c) contacting the initial reaction product with a functionalized reactant, wherein a functionalized portion of the functionalized reactant replaces a hydrogen on the initial reaction product to provide the functionalized compound.2. The process of claim 1 , wherein step (b) comprises contacting the compound with an oxidizing electrophile comprising a main group element in oxidized form.3. The process of claim 1 , wherein step (b) comprises contacting the compound with an oxidant and a reduced form of the oxidizing electrophile.4. The process of claim 1 , wherein the oxidizing electrophile comprises thallium claim 1 , lead claim 1 , bismuth claim 1 , antimony claim 1 , selenium claim 1 , tellurium claim 1 , or a ...

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Номер записи: 99
15-10-2015 дата публикации

Process for Producing Phenol

Номер: US20150291493A1
Автор: Davis Jason D., Kuechler Keith H.
Принадлежит:

In a process for producing phenol and/or cyclohexanone, a cleavage reaction mixture containing cyclohexyl-1-phenyl-hydroperoxide and cyclohexylbenzene is contacted with sulfuric acid and water under cleavage conditions effective to form a cleavage reaction effluent containing phenol, cyclohexanone, cyclohexylbenzene, water, sulfuric acid and 1-phenylcyclohexanol. At least a portion of the cleavage reaction effluent is neutralized with a basic material to produce a neutralized cleavage product and at least a portion of the neutralized cleavage product is supplied in the absence of an added dehydration catalyst to a distillation column. The distillation column is operated so that at least a portion of the neutralized cleavage product is exposed to a temperature greater than 70° C. at at least one location in the distillation column whereby at least a portion of the 1-phenylcyclohexanol in the neutralized cleavage product is dehydrated to phenylcyclohexene. 1. A process for producing phenol and/or cyclohexanone , the process comprising:(a) providing a cleavage reaction mixture containing cyclohexyl-1-phenyl-hydroperoxide and cyclohexylbenzene;(b) contacting at least a portion of the cleavage reaction mixture with sulfuric acid and water under cleavage conditions effective to form a cleavage reaction effluent containing phenol, cyclohexanone, cyclohexylbenzene, water, sulfuric acid, and 1-phenylcyclohexanol;(c) neutralizing at least a portion of the cleavage reaction effluent with a basic material to produce a neutralized cleavage product; and(d) supplying at least a portion of the neutralized cleavage product in the absence of an added dehydration catalyst to a distillation column which is operated so that at least a portion of the neutralized cleavage product is exposed to a temperature greater than 70° C. at at least one location in the distillation column whereby at least a portion of the 1-phenylcyclohexanol in the neutralized cleavage product is dehydrated to ...

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Номер записи: 100