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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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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 6491. Отображено 100.
01-03-2012 дата публикации

Process of making a chlorinated hydrocarbon

Номер: US20120053374A1
Автор: Akihiro Saito, Dai Tsunoda, Jun Kawakami, Kikuo Yamamoto, Masayuki Moriwaki, Shunsuke Hosaka, Tadahiro Fukuju, Yasutaka Komatsu
Принадлежит: Tokuyama Corp

A process of making a chlorinated hydrocarbon through a thermal dehydrochlorination step in which an unsaturated compound represented by the following general formula (2) is obtained by thermally decomposing a saturated compound represented by the following general formula (1). CCl 3 —CCl 2-m H m —CCl 3-n H n   (1) CCl 2 ═CCl 2-m H m-1 —CCl 3-n H n   (2) (in the above formulas, m is 1 or 2, and n is an integer of 0 to 3.)

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Номер записи: 1
21-06-2012 дата публикации

Leaving substituent-containing compound, organic semiconductor material, organic semiconductor film containing the material, organic electronic device containing the film, method for producing film-like product, pi-electron conjugated compound and method for producing the pi-electron conjugated compound

Номер: US20120153271A1
Автор: Daisuke Goto, Keiichiro Yutani, Masataka Mohri, Masato Shinoda, Satoshi Yamamoto, Shinji Matsumoto, Takashi Okada, Takuji Kato, Toshiya Sagisaka
Принадлежит: Ricoh Co Ltd

A leaving substituent-containing compound including a partial structure represented by the following General Formula (I): where a pair of X 1 and X 2 or a pair of Y 1 and Y 2 each represent a hydrogen atom; the other pair each represent a group selected from the group consisting of a halogen atom and a substituted or unsubstituted acyloxy group having one or more carbon atoms; a pair of the acyloxy groups represented by the pair of X 1 and X 2 or the pair of Y 1 and Y 2 may be identical or different, or may be bonded together to form a ring; R 1 to R 4 each represent a hydrogen atom or a substituent; and Q 1 and Q 2 each represent a hydrogen atom, a halogen atom or a monovalent organic group, and may be bonded together to form a ring.

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Номер записи: 2
26-07-2012 дата публикации

Process for separating hydrogen fluoride from organic feedstocks

Номер: US20120190901A1
Автор: Daniel C. Merkel, Hsueh Sung Tung, Konstantin A. Pokrovski
Принадлежит: Honeywell International Inc

Provided is a process for purifying an organic feedstock comprising (a) distilling a raw organic feedstock comprising hydrogen fluoride, 2-chloro-1,1,1,2-tetrafluoropropane, and 2-chloro-3,3,3-trifluoropropene to produce a first distillate stream comprising an azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane, 2-chloro-3,3,3-trifluoropropene, and hydrogen fluoride, and a first bottoms stream rich in hydrogen fluoride; (b) cooling said first distillate stream to produce an intermediate composition comprising an organic layer rich in 2-chloro-1,1,1,2-tetrafluoropropane and 2-chloro-3,3,3-trifluoropropene, and an acid layer rich in hydrogen fluoride; and, optionally but preferably, (c) distilling said organic layer to produce a second distillate stream comprising an azeotrope-like composition of 2-chloro-1,1,1,2-tetrafluoropropane, 2-chloro-3,3,3-trifluoropropene, and hydrogen fluoride, and a second bottoms stream comprising a purified organic feedstock substantially free of hydrogen fluoride.

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Номер записи: 3
25-04-2013 дата публикации

Process

Номер: US20130102815A1
Автор: Andrew P. Sharratt, Claire Mcguiness, John W. Smith
Принадлежит: MEXICHEM AMANCO HOLDING SA DE CV

The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf) comprising (a) contacting 1,1,1-trifluoro-2,3-difluoropropane (243db) with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst to produce a compound having the formula CF 3 CHFCH 2 X, wherein X is Cl or F, and (b) dehydrohalogenating the

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Номер записи: 4
23-05-2013 дата публикации

PROCESS FOR THE PREPARATION OF CHYMASE MODULATORS

Номер: US20130131401A1
Автор: Anzalone Luigi, Dorziotis Llias Konstantinos, Feibush Penina, Li Xun, Villani Frank J.
Принадлежит: Janssen Pharmaceutica, NV

The present invention is a process for the preparation of chymase modulators, useful in the treatment of inflammatory and serine protease mediated disorders. 2. A process as in claim 1 , wherein the compound of formula (II) is present in an excess of its corresponding trans isomer; wherein the brominating agent is 1-bromo-pyrrolidine-2 claim 1 ,5-dione; wherein the brominating agent is present in an amount of about 1.1 molar equivalents; wherein the catalyst is manganese acetate hydrate; wherein the catalyst is present in an amount of about 0.5 molar equivalents; wherein the organic solvent is acetonitrile; and wherein the compound of formula (II) is reacted with brominating agent at a temperature in the range of from about 25° C. to about 70° C. This application is a divisional of U.S. application Ser. No. 13/570,545, filed on Aug. 9, 2012, which is a divisional of nonprovisional U.S. application Ser. No. 12/608,585, filed on Oct. 29, 2009, now U.S. Pat. No. 8,263,785, issued on Sep. 11, 2012, which claims the benefit of U.S. Provisional Application No. 61/197,815, filed on Oct. 29, 2008, which are all incorporated by reference herein in their entirety.The present invention is a process for the preparation of chymase modulators, useful in the treatment of inflammatory and serine protease mediated disorders.The present invention is directed to a process for the preparation of compounds of formula (I)whereinis independently selected from the group consisting of aryl, heteroaryl, and benzo fused heterocyclyl; optionally substituted with Rand R;Ris one to three substituents independently selected from the group consisting of Calkyl, methoxy, Calkoxy, NH, NH(Calkyl), —N(C)dialkyl, aryl, heteroaryl, halogen, hydroxy, and nitro;wherein the Calkyl and Calkoxy substituents of Rare optionally substituted with a substituent independently selected from the group consisting of —NRR, aryl heteroaryl, one to three halogens and hydroxy; wherein Rand Rare substituents independently ...

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Номер записи: 5
06-06-2013 дата публикации

METHOD OF PRODUCING IODIZING AGENT, AND METHOD OF PRODUCING AROMATIC IODINE COMPOUND

Номер: US20130144071A1
Автор: Hagiwara Yuji, KATAOKA Kazuhide, MIDORIKAWA Koji, SUGA Seiji, YOSHIDA Junichi
Принадлежит:

A method of the present invention, for producing an iodizing agent, includes the step of electrolyzing iodine molecules in a solution by using an acid as a supporting electrolyte. This realizes (i) a method of producing an iodine cation suitable for use as an iodizing agent that does not require a sophisticated separation operation after iodizing reaction is completed, and (ii) an electrolyte used in the method. Further, a method of the present invention, for producing an aromatic iodine compound, includes the step of causing an iodizing agent, and an aromatic compound whose nucleus has one or more substituent groups and two or more hydrogen atoms, to react with each other under the presence of a certain ether compound. This realizes such a method of producing an aromatic iodine compound that position selectivity in iodizing reaction of an aromatic compound is improved. 17-. (canceled)9. The method of producing an aromatic iodine compound claim 8 , according to claim 8 , wherein:{'sub': '3-12', 'the cyclic ether compound contains a Cring.'}10. The method of producing an aromatic iodine compound claim 8 , according to claim 8 , wherein:the iodizing agent is an iodine cation.11. The method of producing an aromatic iodine compound claim 8 , according to claim 8 , further comprising the steps of:separating a solid reaction product from a reaction solution obtained in the step (a); andrecrystallizing the reaction product thus separated from the reaction solution.12. The method of producing an aromatic iodine compound claim 8 , according to claim 8 , further comprising the step of isolating a reaction product by carrying out distillation process with respect to a reaction solution obtained in the step (a).13. (canceled) This application is a divisional of U.S. patent application Ser. No. 12/530,274 filed on Sep. 8, 2009, which is a 371 of PCT/JP2008/054184 filed on Mar. 7, 2008 and claims priority to Japanese Application No. 2007-061067 filed on Mar. 9, 2007 and Japanese ...

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Номер записи: 6
13-06-2013 дата публикации

PROCESS FOR 1,1,2-TRICHLORO-3,3,3-TRIFLUOROPROPANE

Номер: US20130150634A1
Автор: Poss Andrew Joseph, Singh Rajiv Ratna, Zhai Yian
Принадлежит: HONEYWELL INTERNATIONAL INC.

Disclosed is a process for making the compound 1,1,2-trichloro-3,3,3-trifluoro-propane (233da) by the catalytic fluorination of 1,1,1,2,3,3-hexachloropropane. 233da is a starting material used in the production cis-1-chloro-3,3,3-trifluoropropene (cis-1233zd). 1. A process for making the compound 1 ,1 ,2-trichloro-3 ,3 ,3-trifluoropropane (233da) from 1 ,1 ,1 ,2 ,3 ,3-hexachloropropane comprising the steps:(a) fluorinating a metal catalyst; and(b) fluorinating 1,1,1,2,3,3-hexachloropropane in the presence of the fluorinated metal catalyst, to produce a reaction mixture containing 1,1,2-trichloro-3,3,3-trifluoropropane.2. The process of claim 1 , wherein the metal catalyst is selected from the group consisting of SbCl claim 1 , TiCl claim 1 , SnCl claim 1 , TaCl claim 1 , and NbCl.3. The process of claim 2 , wherein the catalyst comprises SbCl.4. The process of claim 3 , wherein the fluorination of the catalyst is conducted at a temperature of about 90° C. for about two hours.5. The process of claim 4 , wherein the fluorination of the hexachloropropane is conducted at a temperature of about 100° C. for about 15 hours.6. The process of claim 3 , wherein the fluorination of the catalyst is conducted at a temperature of about 70° C. for about two hours.7. The process of claim 6 , wherein the fluorination of the hexachloropropane is conducted at a temperature of about 100° C. for about 20 hours.8. The process of claim 2 , wherein the catalyst comprises TaCl.9. The process of claim 8 , wherein the fluorination of the catalyst is conducted at a temperature of about 90° C. for about two hours.10. The process of claim 9 , wherein the fluorination of the hexachloropropane is conducted at a temperature of about 90° C. for about six hours.11. A process for making the compound 1 claim 9 ,1 claim 9 ,2-trichloro-3 claim 9 ,3 claim 9 ,3-trifluoropropane (233da) from trans-1-chloro-3 claim 9 ,3 claim 9 ,3-trifluoropropene (trans-1233zd) comprising reacting chlorine gas with trans- ...

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Номер записи: 7
27-06-2013 дата публикации

PROCESS FOR THE PREPARATION OF IODIDES

Номер: US20130165658A1
Автор: Gandelman Mark, Kulbitski Kseniya, Nisnevich Gennady
Принадлежит:

This invention is directed to a process for the preparation of high yield alkyl or aryl iodide from its corresponding carboxylic acid using N-iodo amides. 1. A process for the preparation of iodide , represented by scheme (1):{'br': None, 'R—COOH→R—I\u2003\u2003(1)'}comprising reacting R—COOH with N-iodo amide to yield R—I; wherein R is saturated, linear or branched, substituted or unsubstituted alkyl; substituted or unsubstituted aryl; saturated or unsaturated, substituted or unsubstituted mono- or poly-carbocyclic or heterocyclic ring.2. The process of claim 1 , wherein said amide is carboxamide or sulfonamide.3. The process of claim 1 , wherein said amide is lactame claim 1 , carbamate claim 1 , imide or ureide.4. The process of claim 1 , wherein said amide is 5 claim 1 ,5-dimethylhydantoin claim 1 , 3-benzyl-5 claim 1 ,5-dimethylhydantoin claim 1 , 5-methyl-5-phenylhydantoin claim 1 , 5 claim 1 ,5-diphenylhydantoin claim 1 , 5 claim 1 ,5-hexamethylenehydantoin claim 1 , 5 claim 1 ,5-pentamethylenehydantoin claim 1 , 5 claim 1 ,5-tetramethylenehydantoin claim 1 , succinimide claim 1 , phthalimide claim 1 , saccharine claim 1 , isocyanuric acid claim 1 , 5 claim 1 ,5-dimethylbarbituric acid claim 1 ,-glycoluril claim 1 , 3a claim 1 ,6a-diphenylglycoluril claim 1 , 3a claim 1 ,6a-dimethylglycoluril claim 1 , 4 claim 1 ,4 claim 1 ,5 claim 1 ,5-tetramethyl-2-imidazolidinone claim 1 , 4 claim 1 ,4-dimethyl-2-oxazolidinone or mixture thereof.5. The process of claim 1 , wherein said N-iodo amide is 1 claim 1 ,3-diiodo-5 claim 1 ,5-dimethylhydantoin (DIH) claim 1 , N-iodosuccinimide (NIS) claim 1 , triiodoisocyanuric acid (TICA) claim 1 , 2 claim 1 ,4 claim 1 ,6 claim 1 ,8-tetraiodoglycoluril (TIG) claim 1 , N-iodosaccharine (NISac) claim 1 , or mixture thereof.6. The process of claim 1 , which comprises subjecting the mixture of the R—COOH and N-iodoamide to heat claim 1 , ultrasound claim 1 , or electromagnetic radiation or combination thereof.7. The process of claim 1 ...

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Номер записи: 8
27-06-2013 дата публикации

METHOD FOR PRODUCING A CHLORINATED HYDROCARBON HAVING 3 CARBON ATOMS

Номер: US20130165705A1
Автор: Hosaka Shunsuke, Komatsu Yasutaka, Moriwaki Masayuki, OKADA Naoya, YAMAMOTO Kikuo
Принадлежит: TOKUYAMA CORPORATION

A method of producing a chlorinated hydrocarbon having 3 carbon atoms, comprising a conversion step for converting a chloropropane represented by the following formula (1) into a chloropropane represented by the following formula (2) by reacting it with chlorine in the presence of anhydrous aluminum chloride. 1. A method of producing a chlorinated hydrocarbon having 3 carbon atoms , comprising a conversion step for converting a chloropropane represented by the following formula (1) into a chloropropane represented by the following formula (2) by reacting it with chlorine in the presence of anhydrous aluminum chloride ,{'br': None, 'sub': 3', '(2-m)', 'm', '(3-n)', 'n, 'CCl—CClH—CClh\u2003\u2003(1),'}{'b': '1', 'claim-text': {'br': None, 'sub': 3', '(3-m)', '(m-1)', '(3-n)', 'n, 'CCl—CClH—CClH\u2003\u2003(2),'}, 'In the above formula (), m is 1 or 2, and n is an integer of 0 to 3,'}In the above formula (2), m and n are the same integers as in the formula (1), respectively.2. The method of producing a chlorinated hydrocarbon having 3 carbon atoms according to claim 1 , wherein the conversion step is carried out by putting at least the chloropropane represented by the above formula (1) and anhydrous aluminum chloride into a reactor and then supplying chlorine into the reactor.3. The method of producing a chlorinated hydrocarbon having 3 carbon atoms according to claim 2 , wherein the supply of chlorine into the reactor is started after anhydrous aluminum chloride is dissolved.4. The method of producing a chlorinated hydrocarbon having 3 carbon atoms according to claim 1 , wherein the conversion step is carried out by putting a solution containing at least anhydrous aluminum chloride and the chloropropane represented by the above formula (1) into a reactor and then supplying chlorine into the reactor.5. The method of producing a chlorinated hydrocarbon having 3 carbon atoms according to claim 4 , wherein the solution containing at least anhydrous aluminum chloride and ...

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Номер записи: 9
04-07-2013 дата публикации

PROCESS FOR PRODUCING A RINGLIKE OXIDIC SHAPED BODY

Номер: US20130172577A1
Автор: Borchert Holger, EGER Knut, Faust Jens Uwe, Mueller-Engel Klaus Joachim, Raichle Andreas, Streibert Ralf
Принадлежит: BASF SE

A process for producing a ringlike oxidic shaped body by mechanically compacting a pulverulent aggregate introduced into the fill chamber of a die, wherein the outer face of the resulting compact corresponds to that of a frustocone. 1. A ringlike oxidic shaped body obtained by a process comprising the mechanical compaction of a pulverulent aggregate which has been introduced into the fill chamber of a die and is composed of constituents which comprise at least one metal compound which can be converted to a metal oxide by thermal treatment at a temperature of ≧100° C. , or at least one metal oxide , or at least one metal oxide and at least one such metal compound , to give a ringlike shaped precursor body , in which the fill chamber is disposed in a die bore conducted through the die material from the top downward with a vertical bore axis B and is delimited bythe inner wall of the die bore,the upper end face of a lower punch introduced from below along the bore axis B into the die bore so as to be liftable and lowerable, on which the pulverulent aggregate introduced into the fill chamber rests,the lower end face, disposed along the bore axis B at an axial starting distance A above the upper end face of the lower punch, of an upper punch mounted so as to be liftable and lowerable along the bore axis B, whose lower end face is in contact with the pulverulent aggregate introduced into the fill chamber from above, andthe outer face of a center pin MF conducted from the bottom upward in the die bore along the bore axis B from the geometric center of the upper end face of the lower punch, said center pin MF extending at least up to the geometric center of the lower end face of the upper punch,the process comprising reducing the axial starting distance A of the two end faces along the bore axis B to an axial end distance E predefined for the compaction by lowering the upper punch while maintaining the position of the lower punch or additionally lifting the lower punch, ...

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Номер записи: 10
25-07-2013 дата публикации

Method for preparing optically active 1-bromo-1-[3,5-bis(trifluoromethyl)phenyl]ethane

Номер: US20130190540A1
Автор: Kennosuke Matsuda, Kimiyuki Shibuya, Koichi Yamazaki, Tadaaki Ohgiya, Taichi Kusakabe
Принадлежит: Kowa Co Ltd

A method for preparing optically active 1-bromo-1-[3,5-bis(trifluoromethyl)-phenyl]ethane having a high optical purity, which comprises the step of brominating optically active 1-[3,5-bis(trifluoromethyl)phenyl]ethanol by using, as a brominating agent, (a) a combination of a phosphorus halide and hydrogen bromide, (b) a combination of 1,2-dibromo-1,1,2,2-tetrachloroethane and an organic phosphorous compound represented by the general formula (I): P(R 1 )(R 2 )(R 3 ) (in the formula, R 1 , R 2 , and R 3 independently represent a C 6-10 aryl group, a C 6-10 aryloxy group, a C 1-10 alkyl group, a C 1-10 alkoxyl group, a C 3-6 cycloalkyl group, or a C 3-6 cycloalkoxy group), or (c) a combination of N-bromosuccinimide and a dialkyl sulfide.

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Номер записи: 11
01-08-2013 дата публикации

METHOD FOR PRODUCING 2-CHLORO-3,3,3,-TRIFLUOROPROPENE (HCFC-1233xf)

Номер: US20130197282A1
Автор: Daniel C. Markel, Hsueh S. Tung
Принадлежит: Honeywell International Inc

The present invention relates to an improved method for manufacturing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) by reacting 1,1,2,3-tetrachloropropene, 1,1,1,2,3-pentachloropropane, and/or 2,3,3,3-tetrachloropropene with hydrogen fluoride, in a vapor phase reaction vessel in the presence of a vapor phase fluorination catalyst and stabilizer. HCFC-1233xf is an intermediate in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf) which is a refrigerant with low global warming potential.

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Номер записи: 12
22-08-2013 дата публикации

Method of calibrating and correcting color-bleed factors for color separation in dna analysis

Номер: US20130214177A1
Автор: CHING MING LAI
Принадлежит: Analogic Corp

A method includes calibrating color bleed factors of optical detector channels of a sample processing apparatus through processing a color bleed calibration substance which includes a plurality of different size fragments replicated from different groups of DNA loci, wherein fragments in a same group are labeled with a same fluorescent dye, and fragments in different groups are labeled with different fluorescent dyes having different emission spectra, wherein the different size fragments are processed during different acquisition times.

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Номер записи: 13
19-09-2013 дата публикации

PROCESS FOR THE MANUFACTURE OF 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE BY LIQUID PHASE FLUORINATION OF 2-CHLORO-3,3,3-TRIFLUOROPROPANE

Номер: US20130245341A1
Автор: Bonnet Phillppe, Pigamo Anne, Wendlinger Laurent
Принадлежит:

Process of catalytic fluorination in liquid phase of product 2-chloro-3, 3, 3-trifluoropropene into product 2-chloro-1, 1, 1, 2-tetrafluoropropane, with an ionic liquid based catalyst. Process for manufacturing 2, 3, 3, 3-tetrafluoropropene. 1. Process comprising catalytic fluorination in the liquid phase of 2 chloro-3 ,3 ,3-trifluoropropene into 2-chloro-1 ,1 ,1 ,2-tetrafluoropropane , with HF and an ionic liquid as a catalyst.2. Process according to claim 1 , wherein the catalyst is obtained by reaction of at least one halogenated or oxyhalogenated Lewis acid based on aluminum claim 1 , titanium claim 1 , niobium claim 1 , tantalum claim 1 , tin claim 1 , antimony claim 1 , nickel claim 1 , zinc or iron with a salt of general formula Y+A− claim 1 , in which A− denotes a halide anion or hexafluoroantimonate anion and Y+ denotes a quaternary ammonium cation claim 1 , quaternary phosphonium cation or ternary sulfonium cation.3. Process according to claim 1 , wherein the catalyst is the fluorinated complex catalyst methyl-methyl-imidazolium SbF.4. Process according to claim 1 , carried out in a catalyst-rich phase.5. Process according to in which chlorine is added during the reaction.6. Process according to claim 1 , wherein a gas is injected.7. Process according to the claim 6 , in which the flow of gas claim 6 , compared. to the flow of the 2-chloro-3 claim 6 ,3 claim 6 ,3-trifluoropropene lie between 0.5:1 and 5:1.8. Process according to claim 1 , in which the 2-chloro-1 claim 1 ,1 claim 1 ,1 claim 1 ,2-tetrafluoropropane is withdrawn in the gaseous state.9. Process according to claim 1 , in which the temperature of the reaction ranges between 30° C. and 200° C.10. Process according to claim 1 , in which the pressure of the reaction is higher than 2 bar.11. Process according to claim 1 , in which the molar ratio of HF: 2-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene lies between 0.5:1 and 50:1.12. Process according to claim 1 , comprising:(i) contacting 2-chloro- ...

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Номер записи: 14
14-11-2013 дата публикации

PROCESS FOR THE MANUFACTURE OF FLUORINATED OLEFINS

Номер: US20130303808A1
Автор: Tung Hsueh Sung, WANG HAIYOU
Принадлежит:

Provided are methods for producing fluorinated organic compounds, which preferably comprises converting at least one compound of formula (I) CHXCHZCFto at least one compound of formula (II) CHX═CZCFwhere X and Z are independently H or F, with the proviso that X and Z are not the same. The converting step comprises catalytically reacting at least one compound of formula (I), preferably via dehydrogenation or oxidative dehydrogenation. In another aspect, the inventive method of preparing fluorinated organic compounds comprises converting a reaction stream comprising at least one pentafluoropropene to a product stream comprising at least one pentafluoropropane and at least one compound of formula (I), separating out the compound of formula (I) from the product stream, and converting the compound of formula (I) separated from the product stream to at least one compound of formula (II), wherein the conversion the compound of formula (I) to 3,3,3-trifluoropropyne is substantially limited. 115.-. (canceled)17. The method of claim 16 , wherein said conditions are effective to substantially limit the concentration of 3 claim 16 ,3 claim 16 ,3-trifluoropropyne formed in said final product stream to less than about 100 parts per million.18. The method of claim 16 , wherein said conditions are effective to substantially limit the concentration of 3 claim 16 ,3 claim 16 ,3-trifluoropropyne formed in said final product stream to less than about 50 parts per million.19. The method of claim 16 , wherein said conditions are effective to substantially limit the concentration of 3 claim 16 ,3 claim 16 ,3-trifluoropropyne formed in said final product stream to less than about 20 parts per million.20. The method according to claim 16 , wherein said processing step comprises: {'br': None, 'sub': 2', '3, 'CHXCHZCF\u2003\u2003(I)'}, '(a) reacting said at least one pentafluoropropene to obtain a first product stream comprising at least one pentafluoropropane and at least one compound of ...

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Номер записи: 15
02-01-2014 дата публикации

POLYISOBUTYLENES AND PROCESS FOR MAKING SAME

Номер: US20140005349A1
Автор: Kennedy Joseph P., KWON Yongmoon, UMMADISETTY Subramanyam
Принадлежит: THE UNIVERSITY OF AKRON

The present invention generally relates to alcohol-terminated polyisobutylene (PIB) compounds, and to a process for making such compounds. In one embodiment, the present invention relates to primary alcohol-terminated polyisobutylene compounds, and to a process for making such compounds. In still another embodiment, the present invention relates to polyisobutylene compounds that can be used to synthesize polyurethanes, to polyurethane compounds made via the use of such polyisobutylene compounds, and to processes for making such compounds. In yet another embodiment, the present invention relates to primary alcohol-terminated polyisobutylene compounds having two or more primary alcohol termini and to a process for making such compounds. In yet another embodiment, the present invention relates to primary terminated polyisobutylene compounds having two or more primary termini selected from amine groups or methacrylate groups. 1. A primary alcohol-terminated polyisobutylene compound according to the following formula:{'br': None, 'sub': 3', '2', '2', '3', '2', 'n, '˜˜˜C(CH)—[CH—C(CH)]—R—OH'}{'sub': 3', '12', '3', '12, 'where ˜˜˜ represents the remaining portion of a linear, star, hyperbranched, or arborescent molecule, n is an integer from 2 to about 5,000, and R is a straight Cto Clinkage formed from a corresponding straight Cto Callyl group having a double bond present at the end of the allyl group, and where the primary alcohol-terminated polyisobutylene has at least two primary alcohol termini.'}2. The primary alcohol-terminated polyisobutylene compound of claim 1 , wherein n is an integer from about 7 to about 4 claim 1 ,500.3. The primary alcohol-terminated polyisobutylene compound of claim 1 , wherein n is an integer from about 100 to about 2 claim 1 ,000.4. The primary alcohol-terminated polyisobutylene compound of claim 1 , wherein n is an integer from about 250 to about 1 claim 1 ,500.5. A method for producing a primary methacrylate-terminated polyisobutylene ...

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Номер записи: 16
09-01-2014 дата публикации

PROCESS TO MANUFACTURE 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE (HCFC-244bb)

Номер: US20140012047A1
Автор: Cottrell Stephen A., Johnson Robert C., Merkel Daniel C.
Принадлежит: HONEYWELL INTERNATIONAL INC.

The invention provides an improved process to manufacture 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) by reacting 2-chloro-3,3,3,-trifluoropropene (HCFO-1233xf) with hydrogen fluoride, in a liquid phase reaction in the presence of hydrogen chloride and a liquid phase fluorination catalyst. The hydrogen chloride is added into the reaction from an external source at a pressure of about 100 psig or more. The HCFC-244bb is an intermediate in the production of 2,3,3,3-tetrafluoropropene-1 (HFO-1234yf). 1. A process for the production of 2-chloro-1 ,1 ,1 ,2-tetrafluoropropane which comprises reacting 2-chloro-3 ,3 ,3 ,-trifluoropropene with hydrogen fluoride , in a liquid phase reaction in the presence of hydrogen chloride and a liquid phase fluorination catalyst , wherein the hydrogen chloride is added into the reaction from an external source at a pressure of about 100 psig or more.2. The process of wherein the reacting is conducted in a liquid phase reaction vessel.3. The process of wherein the reacting is conducted continuously.4. The process of wherein the mole ratio of hydrogen fluoride to 2-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene fed to the reaction ranges from at least 1:1 to about 50:1.5. The process of wherein the mole ratio of hydrogen chloride to 2-choro-3 claim 1 ,3 claim 1 ,3-trifluoropropene fed to the reaction ranges from at least 0.1:1 to about 10:1.6. The process of wherein the liquid phase fluorination catalyst comprises SbCl claim 1 , SbCl claim 1 , SbF claim 1 , SnCl claim 1 , TaCl claim 1 , TiCl claim 1 , NbCl claim 1 , MoCl claim 1 , FeCl claim 1 , CrF claim 1 , Cr2O3 claim 1 , a fluorinated species of SbCl claim 1 , a fluorinated species of SbCl claim 1 , a fluorinated species of SnCl claim 1 , a fluorinated species of TaCl claim 1 , a fluorinated species of TiCl claim 1 , a fluorinated species of NbCl claim 1 , a fluorinated species of MoCl claim 1 , a fluorinated species of FeCl claim 1 , a fluorinated species of CrO claim 1 , or ...

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Номер записи: 17
09-01-2014 дата публикации

Process for the Preparation of 2,3,3,3,-Tetrafluoropropene (R-1234yf)

Номер: US20140012050A1
Автор: McGuiness Claire, Sharratt Andrew P., Smith John W.
Принадлежит: MEXICHEM AMANCO HOLDING S.A. DE C.V.

The invention provides a process for the preparation of 2,3,3,3-tetrafluoropropene (1234yf) comprising (a) contacting 1,1,1-trifluoro-2,3-difluoropropane (243db) with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst to produce a compound having the formula CFCHFCHX, wherein X is Cl or F, and (b) dehydrohalogenating the compound of formula CFCHFCHX to produce 1234yf. 1. A process for preparing 1234yf , the process comprising:{'sub': '4', '(i) telomerising ethylene and carbon tetrachloride (CCl) to produce 1,1,1,3-tetrachloropropane;'}(ii) converting 1,1,1,3-tetrachloropropane (250fb) to 3,3,3-trifluoropropene (1243zf);{'sub': 3', '2, '(iii) contacting 1243zf with a compound of formula AB to produce a compound of formula CFCHACHB, wherein A and B represent, independently, H, F, Cl, Br or I, provided that A and B are not both H or F;'}{'sub': 3', '2', '3', '2, '(iv) contacting the compound of formula CFCHACHB with hydrogen fluoride (HF) in the presence of a zinc/chromia catalyst to produce a compound having the formula CFCHFCHX, wherein X is Cl or F; and'}{'sub': 3', '2, '(v) dehydrohalogenating the compound of formula CFCHFCHX to produce 1234yf.'}2. A process according to wherein step (i) comprises contacting ethylene with CClin the liquid and/or vapour phase in the presence of a catalyst in an amount of from about 0.01 to about 50 mol %.3. A process according to wherein step (i) the catalyst comprises iron claim 2 , copper and/or peroxide.4. A process according to wherein step (i) the molar ratio of CCl:ethylene is from about 1:1 to about 50:1.5. A process according to wherein step (i) is conducted at a temperature of from about 20 to about 300° C. and a pressure of from 0 to about 40 bara.6. A process according to wherein the 250fb is purified before conversion to 1243zf.7. A process according to wherein step (ii) comprises fluorination of 250fb to produce a compound of formula CFCHCHCl (253fb) claim 1 , followed by dehydrohalogenation of the 253fb ...

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Номер записи: 18
30-01-2014 дата публикации

Process for the production of aromatic hydrocarbons

Номер: US20140031598A1
Автор: Glenn Charles Komplin, Kuochen Tsai, Sujata Degaleesan, Vishwanath Subramaniam
Принадлежит: Individual

A process comprising feeding bromine into a first reactor; feeding low molecular weight alkanes into the first reactor; and withdrawing alkyl bromides from the first reactor wherein the bromine and low molecular weight alkanes are fed through an apparatus that rapidly mixes the bromine and low molecular weight alkanes. A process is disclosed further comprising reacting the alkyl bromides to form aromatic hydrocarbons.

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Номер записи: 19
27-02-2014 дата публикации

SYSTEM FOR FLUORINATING ORGANIC COMPOUNDS

Номер: US20140058106A1
Автор: Furuya Takeru, Kaiser Hanns M., Ritter Tobias
Принадлежит:

Described herein are fluorinated organic compounds and methods of making fluorinated organic compounds, for example, using palladium complexes. Also described herein are compositions and kits containing compounds and palladium complexes described herein. 2. The palladium complex of claim 1 , wherein the palladium complex further comprises a negatively charged counterion X claim 1 , wherein X is selected from BF claim 1 , BPh claim 1 , PF claim 1 , [BArF] claim 1 , B(CF) claim 1 , SbF claim 1 , and CFSO.3. The palladium complex of claim 1 , wherein Z is —N(R)—.4. The palladium complex of claim 3 , wherein Ris —S(O)R.5. The palladium complex of claim 4 , wherein Ris optionally substituted aryl.7. The palladium complex of claim 1 , wherein Ris pyridyl.8. The palladium complex of claim 1 , wherein Ris halogen claim 1 , an optionally substituted heteroaryl claim 1 , or —OR.9. The palladium complex of claim 8 , wherein Ris —Cl or pyridyl.10. The palladium complex of claim 1 , wherein Ris —C(═O)Ror —S(O)R.11. The palladium complex of claim 10 , wherein Ris an optionally substituted aliphatic.12. The palladium complex of claim 11 , wherein Ris —C(═O)CHor —S(O)CF.15. The method of claim 14 , wherein the organic compound comprises an aryl group.16. The method of claim 14 , wherein the organic compound comprises a boron substituent.18. The method of claim 14 , wherein the fluorinating agent provides a source of F.20. The palladium complex of claim 19 , wherein Ris pyridyl.21. The palladium complex of claim 19 , wherein Ris halogen claim 19 , an optionally substituted heteroaryl claim 19 , or —OR.22. The palladium complex of claim 21 , wherein Ris —Cl or pyridyl.23. The palladium complex of claim 21 , wherein Ris —C(═O)Ror —S(O)R.24. The palladium complex of claim 23 , wherein Ris an optionally substituted aliphatic.25. The palladium complex of claim 24 , wherein Ris —C(═O)CHor —S(O)CF. The present application is a Continuation of U.S. application Ser. No. 12/865,703, which is ...

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Номер записи: 20
10-04-2014 дата публикации

PROCESS FOR THE PRODUCTION OF CHLORINATED PROPENES

Номер: US20140100394A1
Автор: Fish Barry B., JR. William J., Kruper, Laitar David S., Tirtowidjojo Max M.
Принадлежит: Dow Global Technologies, LLC

Processes for the production of chlorinated propenes are provided. The present processes make use of a feedstream comprising 1,2-dichloropropane, a by-product in the production of chlorohydrin, as a low cost starting material, alone or in combination with 1,2,3-trichloropropane. Selectivity of the process is enhanced over conventional processes employing successive chlorinations and/or dehydrochlorinations, by conducting at least one chlorination in the presence of an ionic chlorination catalyst. The present processes may also generate anhydrous HCl as a byproduct that can be removed from the process and used as a feedstock for other processes, providing further time and cost savings. 1. A process for the production of chlorinated propenes from one or more chlorinated alkanes comprising 1 ,2-dichloropropane , comprising a chlorination step , conducted in the presence of a ionic chlorination catalyst , and a dehydrochlorination step.2. The process of claim 1 , wherein the one or more chlorinated alkanes further comprise 1 claim 1 ,2 claim 1 ,3-trichloropropane.3. The process of or claim 1 , wherein the chlorination step produces a mixture of trichloropropane claim 1 , tetrachloropropane claim 1 , and pentachloropropane.4. The process of claim 3 , wherein the mixture of trichlororopane claim 3 , tetrachloropropane and pentachloropropane is dehydrochlorinated in the presence of dehydrochlorinating catalyst.5. The process of claim 1 , wherein the ionic chlorination catalyst comprises AlCl claim 1 , I claim 1 , FeCl claim 1 , sulphur claim 1 , iron claim 1 , antimony pentachloride claim 1 , boron trichloride claim 1 , one or more lanthanum halides claim 1 , one or more metal triflates claim 1 , or combinations of these.6. The process of claim 1 , wherein the chlorinated propene comprises 1 claim 1 ,1 claim 1 ,2 claim 1 ,3-tetrachloropropene.7. The process of claim 4 , wherein the dehydrochlorination is conducted in the liquid phase.8. The process of claim 4 , wherein the ...

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Номер записи: 21
07-01-2021 дата публикации

PROCESS FOR PRODUCING A CHLORINATED ALKANE

Номер: US20210002187A1
Автор: KUBICEK Pavel, ONDRUS Zdenek
Принадлежит: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.

A process for producing a chlorinated alkane in which an alkene or an alkane feedstock is contacted with chlorine in a chlorination zone to produce a reaction mixture containing the chlorinated alkane, wherein the chlorine supplied into the chlorination zone has an oxygen content of less than about 2000 ppmv and wherein: 2. The process of claim 1 , wherein all components of the distillation apparatus which claim 1 , in use of the distillation apparatus claim 1 , would come into contact with the distillate or process fluid are produced from a material selected from the group consisting of fluoropolymers claim 1 , fluorochloropolymers claim 1 , glass claim 1 , enamel claim 1 , phenolic resin impregnated graphite claim 1 , silicium carbide and fluoropolymer impregnated graphite. The present invention relates to processes for producing chlorinated alkane compounds having acceptably low levels of oxygenated impurities.Haloalkanes find utility in a range of applications. For example, halocarbons are used extensively as refrigerants, blowing agents and foaming agents. Throughout the second half of the twentieth century, the use of chlorofluoroalkanes increased exponentially until the 1980's, when concerns were raised about their environmental impact, specifically regarding depletion of the ozone layer.Subsequently, fluorinated hydrocarbons such as perfluorocarbons and hydrofluorocarbons have been used in place of chlorofluoroalkanes, although more recently, environmental concerns about the use of that class of compounds have been raised and legislation has been enacted in the EU and elsewhere to reduce their use.New classes of environmentally friendly halocarbons are emerging and have been investigated, and in some cases, embraced in a number of applications, especially as refrigerants in the automotive and domestic fields. Examples of such compounds include hydrofluoroolefins (HFOs) such as 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), 1,3,3,3-tetrafluoropropene (HFO- ...

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Номер записи: 22
12-01-2017 дата публикации

Compositions comprising 2,3-dichloro-1,1,1-trifluoropropane, 2-chloro-1,1,1-trifluoropropene, 2-chloro-1,1,1,2-tetrafluoropropane or 2,3,3,3-tetrafluoropropene

Номер: US20170009117A1
Автор: Barry Asher Mahler, Mario Joseph Nappa
Принадлежит: Chemours Co FC LLC

Disclosed are compositions comprising HCFC-243db, HCFO-1233xf, HCFC-244db and/or HFO-1234yf and at least one additional compound. For the composition comprising 1234yf, the additional compound is selected from the group consisting of HFO-1234ze, HFO-1243zf, HCFC-243db, HCFC-244db, HFC-245cb, HFC-245fa, HCFO-1233xf, HCFO-1233zd, HCFC-253fb, HCFC-234ab, HCFC-243fa, ethylene, HFC-23, CFC-13, HFC-143a, HFC-152a, HFC-236fa, HCO-1130, HCO-1130a, HFO-1336, HCFC-133a, HCFC-254fb, HCFC-1131, HFO-1141, HCFO-1242zf, HCFO-1223xd, HCFC-233ab, HCFC-226ba, and HFC-227ca. Compositions comprising HCFC-243db, HCFO-1233xf, and/or HCFC-244db are useful in processes to make HFO-1234yf. Compositions comprising HFO-1234yf are useful, among other uses, as heat transfer compositions for use in refrigeration, air-conditioning and heat pump systems.

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Номер записи: 23
08-01-2015 дата публикации

Partially halogenated, hydroxylated fullerene and allergen adsorbent using the same

Номер: US20150011802A1
Автор: Ken Kokubo, Takeshi Noguchi
Принадлежит: Osaka University NUC, Totai Co Ltd

Provided are a novel fullerene derivative which can adsorb quickly and efficiently an allergen which may cause a pollen allergy without releasing the allergen again, does not contain a metal or the like which may cause a harmful effect to a human body, and is easily applicable, impregnable, or chemically bondable onto surface of various materials: and a process for producing the same. The fullerene derivative is characterized in that a halogen group and many hydroxyl groups are bonded directly to a fullerene nucleus. In the case that the halogen group is chlorine, the fullerene derivative can be synthesized by a partial hydroxylation of a chlorinated fullerene or a partial chlorination of a hydroxylated fullerene.

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Номер записи: 24
03-02-2022 дата публикации

PROCESS FOR THE PREPARATION OF 3,3,3-TRIFLUOROPROPENE

Номер: US20220033330A1
Автор: Giddis Clive Robert, HODGSON Emma Jayne, LLOYD GARY, Mcguinness Claire Elizabeth, MURRAY JAMES HENRY, Skae Clare Mary
Принадлежит: Mexichem Fluor S.A. de C.V.

The present invention provides a process for preparing 3,3,3-trifluoropropene (1243zf), the process comprising: 1. A process for preparing 3 ,3 ,3-trifluoropropene (1243zf) , the process comprising:{'sub': 3', '2', '2', '3', '2', '2, '(a) fluorinating CClCHCHC1 (250fb) to produce a reaction product comprising CFCHCHC1 (253fb) in the liquid phase in a first reactor, conducted at a temperature of from 20° C. to 100° C., using HF as a fluorinating agent; and'}(b) dehydrohalogenating 253fb to produce 1243zf in the vapour phase, conducted at a temperature of from 250° C. to 350° C., in the presence of a catalyst in a second reactor;wherein the product stream exiting the second reactor is subjected to one or more separation and/or purification steps and any unreacted 253fb is recycled back into the second reactor.2. A process according to claim 1 , wherein the catalyst used in step (b) comprises activated carbon claim 1 , alumina and/or chromia or zinc/chromia.3. A process according to claim 2 , wherein the catalyst used in step (b) comprises an additional metal or compound thereof.4. A process according to claim 3 , wherein the catalyst used in step (b) is Pd/carbon claim 3 , Pt/carbon claim 3 , Au/carbon claim 3 , Pd/alumina claim 3 , Ni/alumina claim 3 , Pt/alumina claim 3 , Cr/alumina or Zn/chromia.5. A process according to claim 3 , wherein the catalyst used in step (b) is pre-fluorinated.6. A process according to claim 3 , wherein the catalyst used in step (b) comprises activated carbon and the process of step (b) is conducted at a temperature of from about 250° C. to about 300° C.7. A process according to claim 5 , wherein the catalyst used in step (b) is a prefluorinated Zn/chromia catalyst and the process of step (b) is conducted at a temperature of from about 250° C. to about 350° C.8. A process according to claim 1 , wherein in step (b) HF is co-fed with 253fb.9. A process according to claim 1 , wherein the reaction product comprising 253fb produced in step (a) ...

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Номер записи: 25
19-01-2017 дата публикации

PROCESSES FOR THE PRODUCTION OF Z 1,1,1,4,4,4 HEXAFLUORO 2-BUTENE

Номер: US20170015607A1
Автор: BALDYCHEV IVAN SERGEYEVICH, BRANDSTADTER STEPHAN M., Nappa Mario Joseph, Peng Sheng
Принадлежит:

Processes are provided for (i) producing Z-1,1,1,4,4,4-hexafluoro-2-butene (Z—CFCH═CHCF) from E-1,1,1,4,4,4-hexafluoro-2-butene (E-CFCH═CHCF), comprising the steps of (a) reacting the E-1,1,1,4,4,4-hexafluoro-2-butene (E-CFCH═CHCF) with chlorine to form dichloro-1,1,1,4,4,4-hexafluorobutane (CFCHClCHClCF), (b) recovering the dichloro-1,1,1,4,4,4-hexafluorobutane from step (a), (c) reacting the recovered dichloro-1,1,1,4,4,4-hexafluorobutane with base to form 1,1,1,4,4,4-hexafluoro-2-butyne (CF≡CCF), (d) recovering the 1,1,1,4,4,4-hexafluoro-2-butyne from step (c) and (e) reacting the recovered hexafluoro-2-butyne with hydrogen to form said Z-1,1,1,4,4,4-hexafluoro-2-butene, optionally wherein said E-1,1,1,4,4,4-hexafluoro-2-butene starting material is obtained by converting 1,1,1,4,4,4-hexafluoro-2-butane (FCHCl) to a mixture of Z-1,1,1,4,4,4-hexafluoro-2-butene and E-1,1,1,4,4,4-hexafluoro-2-butene and recovering the E-1,1,1,4,4,4-hexafluoro-2-butene from said mixture, whereby the E-1,1,1,4,4,4-hexafluoro-2-butene used in step (a) is the recovered E-1,1,1,4,4,4-hexafluoro-2-butene, and (ii) step (a) as a subcombination of the process (i). 18-. (canceled)9. The process for obtaining dichloro-1 ,1 ,1 ,4 ,4 ,4-hexafluorobutane , comprising contacting E-1 ,1 ,1 ,4 ,4 ,4-hexafluorobutene with chlorine in either the gas phase , or the liquid phase.10. The process of wherein said contacting is carried out in the presence of catalyst selected from the group consisting of ferric chloride claim 9 , chromium chloride claim 9 , alumina chloride and cupric chloride.11. The process of wherein the selectivity for the production of dichloro-1 claim 10 ,1 claim 10 ,1 claim 10 ,4 claim 10 ,4 claim 10 ,4-hexafluorobutane is at least 85%.12. The process of claim 10 , wherein said contacting is carried out at a temperature of from 125 C to 175 C.13. The process of claim 9 , wherein the process is conducted with exposure to ultraviolet light.14. The process of wherein the selectivity ...

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Номер записи: 26
15-01-2015 дата публикации

Process for Preparing N-(4-Cyclohexyl-3-trifluoromethyl-benzyloxy)-acetimidic Acid Ethyl Ester

Номер: US20150018577A1
Автор: Gallou Fabrice, Sedelmeier Joerg Matthias, Vogel Caspar
Принадлежит:

This invention relates to novel processes for synthesizing N-(4-cyclohexyl-3-trifluoromethyl-benzyloxy)-acetimidic acid ethyl ester and to the compound of formula I below and other intermediates that are used in such processes. 141-. (canceled)48. A process according to claim 47 , wherein the base is sodium hydride and the process is conducted in the presence of a catalytic amount of 4-dimethylamino pyridine.49. A process according to claim 47 , wherein Xis bromo.51. A process according to claim 50 , wherein claim 50 , in step “a” claim 50 , X is chloro and the Grignard reagent is isopropylmagnesium chloride lithium chloride complex.52. A process according to claim 50 , wherein claim 50 , in step “b” claim 50 , the acid is sulfuric acid.53. A process according to claim 50 , wherein claim 50 , in step “d” claim 50 , Xis bromo.54. A process according to claim 50 , wherein claim 50 , in step “d” claim 50 , the acid is sulfuric acid claim 50 , trifluoroacetic acid or a mixture of trifluoroacetic acid and sulfuric acid.55. A process according to claim 50 , wherein claim 50 , in step “e” claim 50 , the Grignard reagent is a butyl lithium butylmagnesiumchloride complex or a butyl lithium i-propylmagnesiumchloride complex.56. A process according to claim 50 , wherein claim 50 , wherein claim 50 , in step “e” claim 50 , an aldehyde of formula VIIA is formed.57. A process according to claim 50 , wherein claim 50 , in step “f” claim 50 , the reducing agent is lithium aluminum hydride.59. A process according to claim 58 , wherein claim 58 , in step “c” claim 58 , the compound of formula XIV is reacted with N-bromosuccinimide claim 58 , bromine or 1 claim 58 ,3-dimethyl-2 claim 58 ,5-dibromohydantoine and a radical starter.60. A process according to claim 58 , wherein step “a” is conducted in the presence of a base claim 58 , a phosphine and a palladium catalyst.61. A process according to claim 60 , wherein the palladium catalyst is palladium acetate and the base is sodium ...

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Номер записи: 27
21-01-2021 дата публикации

METHOD AND APPARATUS FOR PRODUCING 1,2,3,4-TETRACHLOROBUTANE

Номер: US20210017105A1
Автор: FUKUCHI Yohsuke, Kobayashi Hiroshi, MIKAMI Katsumi, OGURO Shinya
Принадлежит: SHOWA DENKO K.K.

Provided are a method and an apparatus for producing 1,2,3,4-tetrachlorobutane that are unlikely to lose 3,4-dichloro-1-butene as the material or 1,2,3,4-tetrachlorobutane as the product and can be stably and economically produce 1,2,3,4-tetrachlorobutane. A reaction liquid () containing 3,4-dichloro-1-butene is placed in a reaction container (), then chlorine gas is supplied to a gas phase () in the reaction container (), and the 3,4-dichloro-1-butene is reacted with the chlorine gas to give 1,2,3,4-tetrachlorobutane. 1. A method for producing 1 ,2 ,3 ,4-tetrachlorobutane , the method comprising:placing a reaction liquid containing 3,4-dichloro-1-butene in a reaction container; thensupplying chlorine gas to a gas phase in the reaction container; andreacting the 3,4-dichloro-1-butene with the chlorine gas.2. The method for producing 1 claim 1 ,2 claim 1 ,3 claim 1 ,4-tetrachlorobutane according to claim 1 , wherein the chlorine gas is supplied at an amount of 5.0 mol/h/cmor less per unit area of a liquid surface of the reaction liquid in the reaction container.3. The method for producing 1 claim 1 ,2 claim 1 ,3 claim 1 ,4-tetrachlorobutane according to claim 1 , wherein a pressure in the reaction container is 0.01 MPa or more and 1.0 MPa or less.4. The method for producing 1 claim 1 ,2 claim 1 ,3 claim 1 ,4-tetrachlorobutane according to claim 1 , wherein in the reaction of the 3 claim 1 ,4-dichloro-1-butene with the chlorine gas claim 1 , a portion of the reaction liquid is extracted and is returned to the gas phase in the reaction container.5. The method for producing 1 claim 4 ,2 claim 4 ,3 claim 4 ,4-tetrachlorobutane according to claim 4 , wherein when a portion of the reaction liquid is returned to the gas phase in the reaction container claim 4 , the portion of the reaction liquid is sprayed to the gas phase in the reaction container.6. An apparatus for producing 1 claim 1 ,2 claim 1 ,3 claim 1 ,4-tetrachlorobutane by the method for producing 1 claim 1 ,2 ...

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Номер записи: 28
21-01-2021 дата публикации

Process for preparing (z)-1,1,1,4,4,4-hexafluoro-2-butene

Номер: US20210017106A1
Автор: SHENG Peng
Принадлежит: Chemours Co FC LLC

The present application is directed to processes and intermediates for preparing (Z)-1,1,1,4,4,4-hexafluoro-2-butene. The present application further provides compositions prepared according to one or more of the processes described herein and methods of using the compositions.

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Номер записи: 29
21-01-2021 дата публикации

DIESTER COMPOUND HAVING A DIMETHYLCYCLOBUTANE RING, A PROCESS FOR PREPARING THE SAME, AND A PROCESS FOR PREPARING DIMETHYLCYCLOBUTANE COMPOUND DERIVED FROM THE DIESTER COMPOUND

Номер: US20210017115A1
Автор: Ishibashi Naoki, Kinsho Takeshi, Nagae Yusuke
Принадлежит:

The present invention provides a process for preparing a diester compound of the following general formula (1), having a dimethylcyclobutane ring, wherein Rand Rrepresent, independently of each other, a monovalent hydrocarbon group having 1 to 10 carbon atoms, the process comprising reacting a dimethylcyclobutanone compound of the following general formula (2), wherein Ris as defined above, with a phosphonic ester compound of the following general formula (3), wherein Rand Rrepresent, independently of each other, a monovalent hydrocarbon group having 1 to 10 carbon atoms, to produce the diester compound (1), having a dimethylcyclobutane ring. 5. A process for preparing an isopropenyl dimethylcyclobutane compound (6′) and/or an isopropylidene dimethylcyclobutane compound (7′) , the process comprising{'claim-ref': {'@idref': 'CLM-00004', 'claim 4'}, 'the process according to for preparing the isopropenyl dimethylcyclobutane compound (6) and/or the isopropylidene dimethylcyclobutane compound (7); and'}{'sup': 3', '3', '3, 'changing a specific group, X, in the isopropenyl dimethylcyclobutane compound (6) and/or the isopropylidene dimethylcyclobutane compound (7) to another group, X, among the options for Xdefined above to produce the isopropenyl dimethylcyclobutane compound (6′) and/or the isopropylidene dimethylcyclobutane compound (7′).'} The present invention relates to a diester compound having a dimethylcyclobutane ring which is a useful intermediate for synthesis of insect sex pheromones, and a process for preparing the diester compound. The present invention relates also to a process for preparing a dimethylcyclobutane compound derived from the diester compound having a dimethylcyclobutane ring.Insect sex pheromones are biologically active substances which usually have a function of attracting male individuals to female individuals, and exhibit high attracting activities in small amounts. Sex pheromones are widely used as a means of forecasting outbreaks of pests ...

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Номер записи: 30
21-01-2021 дата публикации

Process for the Manufacture of Trifluoroethylamine

Номер: US20210017118A1
Автор: Hongjun DU, Wenting Wu
Принадлежит: Fujian Yongjing Technology Co Ltd

The invention relates to a new process for the manufacture of fluoroaryl compounds and derivatives thereof, in particular of fluorobenzenes and derivatives thereof, and especially wherein said manufacture relates to an environmentally friendly production of the said compounds. Thus, the present invention overcomes the disadvantages of the prior art processes, and in a surprisingly simple and beneficial manner, and as compared to the prior art processes, in particular, the invention provides a more efficient and energy saving processes, and also provides a more environmentally friendly process, for the manufacture of nuclear fluorinated aromatics, and preferably of nuclear fluorinated fluorobenzenes. Accordingly, in one aspect of the invention, an industrially beneficial process for preparing fluorobenzenes from halobenzene precursors using HF to form hydrogen halide is provided by the present invention. A beneficial and surprisingly simple use of chlorobenzene as an industrially interesting starting material in the manufacture of fluorobenzene is provided.

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Номер записи: 31
28-01-2016 дата публикации

CATALYST AND PROCESS FOR OXYCHLORINATION OF ETHYLENE TO DICHLOROETHANE

Номер: US20160023191A1
Автор: Kramer Keith
Принадлежит:

In an oxychlorination process of the type where ethylene is converted to 1,2-dichloroethane in the presence of a supported copper catalyst, the improvement comprising: the use of a supported catalyst prepared by (i) impregnating, within a first step, an alumina support with a first aqueous solution including copper, an alkaline earth metal, and an alkali metal to thereby form a first catalyst component; and (ii) impregnating, within a subsequent step, the first catalyst component with a second aqueous solution including copper and alkaline earth metal, where the second aqueous solution is substantially devoid of alkali metal, to thereby form the supported catalyst. 110-. (canceled)11. A process for producing a catalyst for the oxychlorination of ethylene to 1 ,2-dichloroethane , the process comprising the steps of:(i) impregnating, within a first step, an alumina support with a first aqueous solution including copper, an alkaline earth metal, and an alkali metal to thereby form a first catalyst component; and(ii) impregnating, within a subsequent step, the first catalyst component with a second aqueous solution including copper and alkaline earth metal, where the second aqueous solution is substantially devoid of alkali metal, to thereby form the supported catalyst.12. The process of claim 11 , where the alkaline earth metal is magnesium claim 11 , and where said second aqueous solution includes a magnesium to copper molar ratio of greater than 0.19.1314-. (canceled) This application claims the benefit of U.S. Provisional Application Ser. No. 61/798,872, filed on Mar. 15, 2013, which is incorporated herein by reference.Embodiments of the invention relate to catalysts for oxychlorination of ethylene to dichloroethane. The catalysts advantageously exhibit less stickiness, especially at high copper loadings, and they are therefore advantageously useful in baffled-bed reactors.Oxychlorination is the process where ethylene is converted to 1,2-dichloroethane. This ...

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Номер записи: 32
28-01-2016 дата публикации

PROCESS FOR THE PRODUCTION OF CHLORINATED ALKANES

Номер: US20160023967A1
Автор: Calverley Edward M., GRANDBOIS Matthew L., JR. William J., Kruper, Laitar David S., Tirtowidjojo Max M.
Принадлежит: Blue Cube IP LLC

Processes for the production of chlorinated alkanes are provided. The present processes comprise dehydrochlorinating one or more trichloroalkanes having from 3-6 carbon atoms and vicinal chlorine atoms, followed by a series of sequential chlorination and/or further dehydrochlorination steps. Because the trichloroalkane is first dehydrochlorinated, rather than being first chlorinated, greater specificity to desired tetra- and pentachloroalkanes can be seen. 1. A process for the production of 1 ,1 ,1 ,2 ,2-pentachloropropane from 1 ,1 ,2-trichloropropane , the process comprising dehydrochlorinating the trichlorinated alkane and subjecting the product stream of the dehydrochlorination to sequential chlorination and/or further dehydrochlorination steps.2. The process of claim 1 , wherein the trichlorinated alkane is dehydrochlorinated in the presence of caustic.3. (canceled)4. (canceled)5. The process of claim 1 , wherein the 1 claim 1 ,1 claim 1 ,2-trichloropropane is produced in situ by the ionic chlorination of a dichlorinated alkane.6. The process of claim 5 , wherein the dichlorinated alkane comprises 1 claim 5 ,2-dichloropropane.7. (canceled)8. The process of claim 1 , wherein chlorination steps and dehydrochlorination steps are alternated after the dehydrochlorination of the trichloroalkane.9. The process of claim 8 , wherein the chlorination steps are conducted in a solvent.10. The process of claim 9 , wherein the solvent comprises methylene chloride claim 9 , carbon tetrachloride claim 9 , and/or 1 claim 9 ,1 claim 9 ,2 claim 9 ,3-tetrachloropropane.11. The process of claim 8 , wherein the chlorination steps are conducted in the presence of an ionic chlorination catalyst comprising AlCl claim 8 , I claim 8 , FeCl claim 8 , sulphur claim 8 , antimony pentachloride claim 8 , boron trichloride claim 8 , one or more lanthanum halides claim 8 , one or more metal triflates claim 8 , or combinations of these.12. The process of claim 11 , wherein the ionic chlorination ...

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Номер записи: 33
28-01-2016 дата публикации

Process for Preparing C3-6(Hydro)Fluoroalkenes by Dehydrohalogenating C3-6 Halo(Hydro)Fluoroalkanes in the Presence of a Zinc/Chromia Catalyst

Номер: US20160023970A1
Автор: Seddon Leslie Richard, Sharratt Andrew Paul
Принадлежит: MEXICHEM AMANCO HOLDING S.A. DE C.V.

The invention relates to a process for preparing a C3-6 (hydro)fluoroalkene comprising dehydrohalogenating a C3-6 hydro(halo)fluoroalkane in the presence of a zinc/chromia catalyst, wherein the C3-6 (hydro)fluoroalkene produced is isomerised in the presence of the zinc/chromia catalyst. 1. A process for preparing 2 ,3 ,3 ,3-tetrafluoropropene (CF3CF═CH2) comprising:(i) fluorinating 3,3,3-trifluoro-2-chloropropene (CF3CCl═CH2) with HF to produce an intermediate composition comprising 1,1,1,2-tetrafluoro-2-chloropropane (CF3CFClCH3); and(ii) dehydrochlorinating the CF3CFClCH3 in the intermediate composition to produce CF3CF═CH2.2. A process according to claim 1 , wherein step (i) and/or (ii) is carried out in the presence of a catalyst.3. A process according to claim 2 , wherein step (i) is carried out in the presence of a chromia-containing catalyst.4. A process according to claim 2 , wherein step (ii) is carried out in the presence of a zinc/chromia catalyst.5. A process according to claim 4 , wherein the zinc/chromia catalyst comprises 0.01 to 25% by weight zinc.6. A process according to claim 4 , wherein the zinc/chromia catalyst is amorphous or from 0.1 to 50% by weight of the catalyst is in the form of one or more crystalline compounds of chromium and/or one or more crystalline compounds of zinc.7. A process according to claim 1 , wherein the intermediate composition further comprises 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,2-pentafluoropropene (CF3CF2CH2).8. A process according to claim 7 , wherein CF3CFClCH3 is fluorinated to produce CF3CF2CH3.9. A process according to claim 8 , wherein CF3CFClCH3 is fluorinated with HF in the presence of a chromia-containing catalyst to produce CF3CF2CH3.10. A process according to claim 7 , wherein the CF3CF2CH3 is dehydrofluorinated to produce CF3CF═CH2.11. A process according to claim 1 , wherein the ratio of HF:organics in the fluorinating step is from about 5:1 to about 30:1.12. A process according to claim 1 , ...

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Номер записи: 34
22-01-2015 дата публикации

Process to make 1,1,2,3-Tetrachloropropene

Номер: US20150025282A1
Автор: Hsueh Sung Tung, Terris YANG
Принадлежит: Honeywell International Inc

Disclosed is a process for the synthesis of 1,1,2,3-tetrachloropropene (HCC-1230xa) using 1,1,3-trichloropropene (HCC-1240za) and/or 3,3,3-trichloropropene (HCC-1240zf) and Cl 2 gas as the reactants, wherein the process takes place in a single reactor system. Before this invention, HCC-1230xa was made in a two-step process using HCC-1240za/HCC-1240zf and Cl 2 gas, and the processing was conducted using two separate reactors.

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Номер записи: 35
02-02-2017 дата публикации

HALOGENATED ANILINE AND METHOD FOR PRODUCING SAME

Номер: US20170029361A1
Автор: Inoue Hiroki, ITO Yoshikazu, KITAYAMA Takashi, Kobayashi Shinichi, Sakata Yuzuru
Принадлежит: NIPPON SODA CO., LTD.

The present invention provides a halogenated aniline represented by formula (I) (wherein each of Xand Xindependently represents a chlorine atom, a bromine atom or an iodine atom), a method for producing the halogenated aniline, and other aspects. 1. (canceled)34.-. (canceled)6. The method for producing a halogenated nitrobenzene according to claim 5 , wherein fuming sulfuric acid and concentrated nitric acid are added to the halogenated benzene represented by formula (III) to nitrate the halogenated benzene.7. The method for producing a halogenated nitrobenzene according to claim 5 , wherein fuming sulfuric acid and fuming nitric acid are added to the halogenated benzene represented by formula (III) to nitrate the halogenated benzene.810.-. (canceled)11. A method for producing 1 claim 5 ,2-dichloro-4 claim 5 ,5-difluorobenzene claim 5 , comprising a step of chlorinating 1 claim 5 ,2-difluorobenzene. The present invention relates to a novel halogenated aniline, which can be used as a production raw material for compounds that are useful as electronic materials, medicines, and agricultural chemicals and the like, as well as a method for producing the halogenated aniline.Priority is claimed on Japanese Patent Application No. 2012-280691, filed Dec. 25, 2012, the content of which is incorporated herein by reference.The compound 2,3-difluoroaniline is the starting raw material for producing 2-[2-fluoro-6-(7,8-difluoro-2-methylquinolin-3-yloxy)phenyl]propan-2-ol and 2-[2-fluoro-6-(7,8-difluoroquinolin-3-yloxy)phenyl]propan-2-ol, which are known as active ingredients for agricultural and horticultural germicides (Patent Document 1).Further, 2,3-difluoroaniline is also used in the production of medicines such as antibiotics (Patent Document 2), c-Met protein kinase inhibitors (Patent Document 3), drugs for Alzheimer's disease (Patent Document 4), Aurora B kinase inhibitors (Patent Document 5), and drugs for neuropathic pain (Patent Document 6).Moreover, 2,3-difluoroaniline ...

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Номер записи: 36
02-02-2017 дата публикации

PROCESS FOR THE PREPARATION OF (3E, 7E)-HOMOFARNESOL

Номер: US20170029396A1
Автор: Ernst Hansgeorg, HOFFMAN Reinhard, SIEGEL Wolfgang, WEINGARTEN Melanie, Winterfeldt Ekkehard
Принадлежит:

The present invention relates to new types of processes for the improved preparation of homofarnesol, in particular of (3E,7E)-homofarnesol and homofarnesol preparations with an increased content of (3E,7E)-homofarnesol (also referred to as all E-homofarnesol). 2. The process according to claim 1 , where a cyclopropylphosphonium salt is used for the Wittig olefination according to stage a).4. The process according to claim 3 , where the compound of the formula V is prepared by reacting a) bromobutyrolactone with triphenylphosphine and thermally decarboxylating the reaction product claim 3 , or by reacting claim 3 , b) reacting 1 claim 3 ,3-dibromopropane with triphenylphosphine and cyclizing the reaction product.5. The process according to claim 1 , wherein the ring-opening in stage b) takes place in the presence of a Lewis acid or Brönstedt acid/protonic acid claim 1 , and a nucleophile.6. The process according to claim 5 , where the ring opening provides essentially E-selectively with respect to R.7. The process according to claim 1 , wherein for stage c) claim 1 , X is OR′ claim 1 , and carrying out an ester cleavage claim 1 , or X is halogen claim 1 , and converting the halide to a corresponding ester claim 1 , and then cleaving the corresponding ester.12. A process for preparing enantiomerically pure ambrox or a stereoisomer mixture of ambrox claim 1 , where (3E claim 1 , 7E)-homofarnesol is prepared by a process according to and the homofarnesol is reacted chemically or enzymatically to give enantiomerically pure ambrox or a stereoisomer mixture of ambrox. The present invention relates to new types of processes for the improved preparation of homofarnesol, in particular of (3E,7E)-homofarnesol and homofarnesol preparations with an increased content of (3E,7E)-homofarnesol (also referred to as all E-homofarnesol).Ambrox® is the trade name of the enantiomerically pure compound (−)-ambrox (3aR,5aS,9aS,9bR)-3a,6,6,9a-tetramethyldodecahydronaphtho[2,1-b]furan), a ...

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Номер записи: 37
01-02-2018 дата публикации

PROCESS FOR PRODUCING HIGHLY PURE CHLORINATED ALKANE

Номер: US20180029960A1
Автор: FILAS Karel, KUBICEK Pavel, ONDRUS Zdenek, SLADEK Petr
Принадлежит: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.

Disclosed is a process for producing highly pure chlorinated alkane in which a chlorinated alkene is contacted with chlorine in a reaction zone to produce a reaction mixture containing the chlorinated alkane and the chlorinated alkene, and extracting a portion of the reaction mixture from the reaction zone, wherein the molar ratio of chlorinated alkane:chlorinated alkene in the reaction mixture extracted from the reaction zone does not exceed 95:5. 1. A highly pure chlorinated alkane composition , as a feedstock for use in the synthesis of a chlorinated alkene , or a fluorinated alkane or fluorinated alkene or chlorofluorinated alkene or mixtures thereof , wherein the composition has been obtained by feeding a chlorinated alkene into a reaction zone and contacting it with chlorine in said reaction zone to produce a reaction mixture containing the chlorinated alkane and the chlorinated alkene , and extracting a portion of the reaction mixture from the reaction zone , wherein the molar ratio of chlorinated alkane:chlorinated alkene in the reaction mixture extracted from the reaction zone does not exceed 95:5 , and wherein the composition obtained from the reaction mixture comprises:the chlorinated alkane product in amounts of at least about 99.7%, at least about 99.8%, at least about 99.9%, or at least about 99.95%, and one or more of the following:oxygenated organic compounds in amounts of less than about 500 ppm, about 250 ppm or less, about 100 ppm or less, about 50 ppm or less, or about 10 ppm or less,isomers of the chlorinated alkane of interest amounts less than about 500 ppm or less, about 250 ppm or less, or about 100 ppm or less,non-isomeric alkane impurities in amounts of less than about 500 ppm, about 250 ppm or less, or about 100 ppm or less,chlorinated alkenes in amounts of less than about 500 ppm, about 250 ppm or less, about 100 ppm or less, or about 50 ppm or less,water in amounts of less than about 500 ppm, about 250 ppm or less, about 100 ppm or less ...

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Номер записи: 38
01-02-2018 дата публикации

Method for preparing 2,3,3,3-tetrafluoropropene using methyl magnesium chloride

Номер: US20180029961A1
Автор: Hongfeng Li, Liyong Ma, Shuhua Wang, Xiaobo Xu
Принадлежит: Juhua Group Technology Centre

The present invention discloses a method for preparing 2,3,3,3-tetrafluoropropene using methylmagnesium chloride, comprising the following steps: 1) preparing 1,1,2-trifluoropropene (CH 3 CF═CF 2 ); 2) preparing 1,1,1,2,2-pentafluoropane (CF 3 CF 2 CH 3 ); 3) preparing 2,3,3,3-tetrafluoropropene (CF 3 CF═CH 2 ). In the present invention, using a Grignard reagent, namely methylmagnesium chloride, and tetrafluoroethylene as starting raw materials, 2,3,3,3-tetrafluoropropene is prepared by three steps of nucleophilic addition-elimination, fluorine addition, and dehydrofluorination in sequence. The process flow is relatively short, and the product yield is high.

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Номер записи: 39
17-02-2022 дата публикации

MONO-SUBSTITUTED CYCLOPENTADIENES AND METAL CYCLOPENTADIENYL COMPLEXES AND SYNTHESIS METHODS THEREOF

Номер: US20220048837A1
Автор: NIKIFOROV Grigory
Принадлежит:

Disclosed are mono-substituted cyclopentadienes, metal cyclopentadienyl complexes and methods for synthesizing them. The disclosed mono-substituted cyclopentadienes are synthesized by a selective catalytic carbon-carbon coupling reaction. The disclosed metal cyclopentadienyl complexes are synthesized from the disclosed mono-substituted cyclopentadienes. The disclosed metal cyclopentadienyl complexes include main group metal and transition metal cyclopentadienyl complexes, and may be used as deposition precursors contained in film forming compositions for film depositions in semiconductor industry, such as ALD, CVD, SOD, etc. 1. A method of synthesizing a mono-substituted cyclopentadiene , the method comprising:mixing a metal hydroxide, a halide, a cyclopentadiene monomer, an alkaline earth oxide, and a homogeneous catalyst in a solvent; andallowing a selective catalytic carbon-carbon coupling reaction to form the mono-substituted cyclopentadiene,wherein approximately 20-400% excess amount of the cyclopentadiene monomer is used relative to the amount of the halide.2. The method of claim 1 , further comprising:contacting the mono-substituted cyclopentadiene with a metal compound; andconverting the mono-substituted cyclopentadiene to a metal cyclopentadienyl complex.3. The method of claim 2 , further comprising:maintaining a temperature within a range of from −15° C. to 70° C. under atmospheric pressure.4. The method of claim 2 , further comprising:optionally purifying the mono-substituted cyclopentadiene.5. (canceled)6. The method of claim 1 , wherein approximately 40-80% excess amount of the cyclopentadiene monomer is used relative to the amount of the halide.7. The method of claim 1 , wherein the metal hydroxide is MOH claim 1 , wherein M is Group I alkali metal.8. The method of claim 1 , wherein the halide is an silyl- claim 1 , amino- claim 1 , alkyl- or hydrocarbonyl halide or fluoroalkyl halide has the formula R(Hal) or R(F)(Hal) claim 1 , wherein Hal is ...

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Номер записи: 40
30-01-2020 дата публикации

PROCESS FOR THE MANUFACTURE OF 2,2-DICHLORO-1,1,1-TRIFLUOROETHANE (HCFC-123) AND/OR HCFC-122 (1,1,2-TRICHLORO-2,2-DIFLUOROETHANE)

Номер: US20200031743A1
Автор: DU Hongjun, Wu Wenting
Принадлежит: Fujian Yongjing Technology Co., Ltd

The invention pertains to a method in which the production of HCFC-123 (2,2-dichloro-1,1,1-trifluoroethane) and/or of HCFC-122 (1,1,2-trichloro-2,2-difluoroethane) in at least one reaction step takes place in a microreactor. Particularly, in preferred embodiments of the invention pertains to a method in which the production of HCFC-123 (2,2-dichloro-1,1,1-trifluoroethane) and/or of HCFC-122 (1,1,2-trichloro-2,2-difluoroethane) in at least one reaction step takes place in a microreactor that comprises or is made of SiC (“SiC-microreactor”), or in a microreactor that comprises or is made of an alloy, e.g. such as Hastelloy C. In an ebodiment, the processes for the manufacture of HCFC-123 (2,2-dichloro-1,1,1-trifluoroethane) and/or of HCFC-122 (1,1,2-trichloro-2,2-difluoroethane) can be efficiently combined in that HCFC-122 (1,1,2-trichloro-2,2-difluoroethane) produced by the method according the invention by using a microreactor, preferably an SiC-microreactor, may preferably advantageously serve as starting material/and/or intermediate material in the manufacture of HCFC-123 (2,2-dichloro-1,1,1-trifluoroethane), preferably also in a microreactor. 1. A process of manufacturing CHClCF(HCFC-123) , comprising:{'sub': 2', '2, '(a) providing CHClCClF(HCFC-122);'}(b) providing HF and a catalyst;(c) mixing the HCFC-122 in the step (a) with the HF and the catalyst in the step (b);{'sub': 2', '3, '(d) feeding the mixture obtained in the step (c) into at least one continuous flow reactor with upper lateral dimensions of about ≤4 mm, and carrying out the reaction of the HCFC-122 with the HF in the presence of the catalyst in the at least one continuous flow reactor to obtain a reaction mixture comprising CHClCF(HCFC-123); and'}(e) taking out the reaction mixture obtained in the step (d) from the continuous flow reactor to yield a product comprising HCFC-123.2. The process of claim 1 , wherein the HCFC-122 in the step (a) is formed by reacting tetrachloroethylene (PER) with HF ...

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Номер записи: 41
05-02-2015 дата публикации

ELECTROCHEMICAL HYDROXIDE SYSTEMS AND METHODS USING METAL OXIDATION

Номер: US20150038750A1
Автор: Gilliam Ryan J, Leclerc Margarete K, Mariansky Gal, Nagar Jacob, Self Kyle, Shipchandler Riyaz Mohammed, Weiss Michael Joseph
Принадлежит:

There are provided methods and systems for an electrochemical cell including an anode and a cathode where the anode is contacted with a metal ion that converts the metal ion from a lower oxidation state to a higher oxidation state. The metal ion in the higher oxidation state is reacted with an unsaturated hydrocarbon and/or a saturated hydrocarbon to form products. Separation and/or purification of the products as well as of the metal ions in the lower oxidation state and the higher oxidation state, is provided herein. 1. A system , comprising:an electrochemical system comprising an anode chamber comprising an anode in contact with an anode electrolyte comprising metal ions wherein the anode is configured to oxidize the metal ions from a lower oxidation state to a higher oxidation state; anda reactor operably connected to the anode chamber and configured to contact the anode electrolyte comprising the metal ions in the higher oxidation state with an unsaturated and/or saturated hydrocarbon to form one or more organic compounds comprising halogenated or sulfonated hydrocarbon and the metal ion in the lower oxidation state, wherein the reactor has a length:diameter ratio of between 2-40.2. The system of claim 1 , wherein the reactor is configured to produce the halogenated or sulfonated hydrocarbon with more than 0.5 STY or more than 80% selectivity.3. The system of claim 1 , wherein the reactor has a length/diameter ratio of between about 20-40.4. The system of claim 1 , wherein the reactor is a packed-bed reactor or a trickle-bed reactor.5. The system of claim 1 , wherein the reactor has a packing material comprising structured packing material claim 1 , unstructured packing material claim 1 , or combination thereof.6. The system of claim 5 , wherein the structured packing material comprises thin corrugated metal plates or gauzes.7. The system of claim 6 , wherein diameter of the structured packing material is the diameter of the reactor.8. The system of claim 5 , ...

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Номер записи: 42
11-02-2016 дата публикации

INTEGRATED PROCESS FOR THE PRODUCTION OF Z-1,1,1,4,4,4-HEXAFLUORO-2-BUTENE

Номер: US20160039728A1
Автор: Jackson Andrew, Nappa Mario Joseph, Peng Sheng
Принадлежит:

The present invention provides an efficient and cost effect synthesis route from a specific starting material of 2,3-dichloro-1,3-butadiene to the desired product of Z-1,1,1,4,4,4-hexafluoro-2-butene. 1. A process for the preparation of Z-1 ,1 ,1 ,4 ,4 ,4-hexafluoro-2-butene from 2 ,3-dichloro-1 ,3-butadiene comprising the Steps of:h) contacting chlorine with 2,3-dichloro-1,3-butadiene to obtain 1,2,2,3,3,4-hexachlorobutane;i) contacting the 1,2,2,3,3,4-hexachlorobutane with a first basic aqueous solution to produce 1,2,3,4-tetrachlorobuta-1,3-diene;j) adding chlorine to the 1,2,3,4-tetrachlorobuta-1,3-diene to obtain 1,1,2,2,3,3,4,4-octachlorabutane;k) contacting the 1,1,2,2,3,3,4,4-octachlorobutane in a second basic aqueous solution to produce 1,1,2,3,4,4-hexachlorobuta-1,3-diene.l) combining hydrogen fluoride with the 1,1,2,3,4,4-hexachlorobuta-1,3-diene to obtain E- and Z-1326mxz (1,1,1,4,4,4-hexafluoro-2-chloro-2-butene);m) reacting Z-1,1,1,4,4,4-hexafluoro-2-chloro-2-butene with an aqueous solution of an alkali metal hydroxide and an alkali metal halide to produce a mixture comprising hexafluoro-2-butyne; and,n) hydrogenating hexafluoro-2-butyne to 1,1,1,4,4,4 hexafluro-2-butene.2. The process according to claim 1 , wherein any one claim 1 , any two or all three of Steps (b) claim 1 , (d) and (f) proceed in the presence of a phase transfer catalyst comprising an independently selected quaternary alkylammonium salt comprising alkyl groups of from four to twelve carbon atoms and mixtures thereof.3. The process according to claim 2 , wherein said phase transfer catalyst comprises tetrabutyl ammonium chloride.4. The process according to claim 1 , wherein either or both of Steps (a) and (c) proceed in the presence of a chlorination catalyst independently selected from the group consisting of SbCl claim 1 , FeCl claim 1 , CrCland AlCl.5. The process according to claim 4 , wherein the reaction of chlorine with 2 claim 4 ,3-dichloro-1 claim 4 ,3-butadiene to obtain 1 ...

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Номер записи: 43
12-02-2015 дата публикации

PROCESS FOR 1-CHLORO-3,3,3-TRIFLUOROPROPENE FROM TRIFLUOROPROPENE

Номер: US20150045590A1
Автор: NAIR HARIDASAN K., Nalewajek David, Poss Andrew Joseph, Zhai Yian
Принадлежит:

The present invention provides routes for making 1-chloro-3,3,3-trifluoropropene (HCFO-1233zd) from commercially available raw materials. More specifically, this invention provides several routes for forming HCFO-1233zd from 3,3,3-trifluoropropene (FC-1234zf). 1. A method for the formation of 1-chloro-3 ,3 ,3-trifluoropropene (HCFO-1233zd) from 3 ,3 ,3-trifluoropropene (FC-1234zf) comprising the direct conversion of 3 ,3 ,3-trifluoropropene into CFCH═CHCl by reaction with oxygen and hydrogen chloride.2. The method of claim 1 , wherein the reaction is run in a continuous manner.3. A method for the formation of 1-chloro-3 claim 1 ,3 claim 1 ,3-trifluoropropene (HCFO-1233zd) from 3 claim 1 ,3 claim 1 ,3-trifluoropropene (FC-1234zf) claim 1 , selected from the group of reactions consisting of:{'sub': 3', '2', '3, '(a) the reaction of 3,3,3-trifluoropropene with XCl, whereby XCl is added across the double to afford CFCHXCHCl which is then converted to CFCH═CHCl by an HX elimination reaction;'}{'sub': 3', '2', '3, '(b) the reaction of 3,3,3-trifluoropropene with hydrogen to afford CFCHCH, which is then chlorinated and dehydrochlorinated to give 1-chloro-3,3,3-trifluoropropene; and'}(c) combinations of these reactions.4. The method of claim 3 , wherein the oxychlorination reaction comprises the reaction of oxygen and hydrogen chloride with the propene claim 3 , in the vapor phase over a supported catalyst.5. The method of where oxygen to hydrogen chloride ratio is 0.5 to 1.6. The method of claim 4 , wherein the supported catalyst is selected from the group consisting of copper chloride salts claim 4 , rare earth salts claim 4 , and equivalents thereof.7. The method of claim 5 , wherein the catalyst comprises CuCl.8. The method of claim 5 , wherein the catalyst comprises CuCO/CeO.9. The method of claim 4 , wherein the support of the catalyst is selected from the group consisting of carbon claim 4 , alumina claim 4 , and equivalents thereof.10. The method of claim 4 , ...

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Номер записи: 44
12-02-2015 дата публикации

Processes for Producing Chlorinated Hydrocarbons and Methods for Recovering Polyvalent Antimony Catalysts Therefrom

Номер: US20150045591A1
Автор: Scott A. SHERWOOD, Stephen Robert LESTER
Принадлежит: Axiall Ohio Inc

The preparation of chlorinated hydrocarbons, such as pentachloropropanes, such as 1,1,1,2,3-pentachloropropane, from tetrachloropropanes, such as 1,1,1,3-tetrachloropropane, in the presence of a polyvalent antimony compound that includes a pentavalent antimony compound, such as antimony pentachloride, is described. Also described are methods for preparing optionally chlorinated alkenes, such as, tetrachloropropenes, from chlorinated alkanes, such as pentachloropropanes, in the presence of polyvalent antimony compound that includes a pentavalent antimony compound, as well as methods for recovering polyvalent antimony compounds from such processes.

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Номер записи: 45
12-02-2015 дата публикации

Process for the production of chlorinated alkanes

Номер: US20150045592A1
Автор: Matthew L. Grandbois, William J. Kruper, Jr.
Принадлежит: Dow Global Technologies LLC

Processes for the production of chlorinated alkanes are provided. The present processes comprise reacting one or more mono- and/or dichloroalkanes to form tri-, tetra- and/or pentachloroalkanes, with high regioselectivity. In those embodiments wherein a dichloroalkane is desirably utilized, it may advantageously be a vicinal dichloroalkane. Further, only one catalyst is utilized. The present processes make use of sulfuryl chloride as a chlorinating agent, rather than a gaseous chlorinating agent such as chlorine gas. Finally, the process uses lower intensity process conditions than at least some conventional processes, and thus, operating costs are saved.

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Номер записи: 46
15-02-2018 дата публикации

ELECTROCHEMICAL HYDROXIDE SYSTEMS AND METHODS USING METAL OXIDATION

Номер: US20180044267A1
Автор: GILLIAM RYAN J., Leclerc Margarete K., Mariansky Gal, Nagar Jacob, Self Kyle, Shipchandler Riyaz Mohammed, Weiss Michael Joseph
Принадлежит:

There are provided methods and systems for an electrochemical cell including an anode and a cathode where the anode is contacted with a metal ion that converts the metal ion from a lower oxidation state to a higher oxidation state. The metal ion in the higher oxidation state is reacted with an unsaturated hydrocarbon and/or a saturated hydrocarbon to form products. Separation and/or purification of the products as well as of the metal ions in the lower oxidation state and the higher oxidation state, is provided herein. 122-. (canceled)23. A method , comprising:{'sub': 2', '2', '2', '2', '2, 'contacting an anode with an anode electrolyte wherein the anode electrolyte comprises CuCl, CuCl, NaCl, and water; oxidizing CuCl to CuClat the anode; reacting ethylene with the anode electrolyte comprising CuCl, CuCl, NaCl, and water to form one or more organic compounds comprising ethylene dichloride (EDC) and chloroethanol (CE) and reducing CuClto CuCl; exiting first vapor stream comprising EDC and a first liquid stream comprising EDC, CE, CuCl, CuCl, NaCl, and water; and'}{'sub': '2', 'claim-text': [{'sub': '2', 'vapor-liquid separation process that separates the exiting first liquid stream into a second vapor stream comprising EDC and CE and a second liquid stream comprising EDC, CE, CuCl, CuCl, NaCl, and water;'}, 'compression-cooling process that condenses the exiting first vapor stream comprising EDC to a third liquid stream;', {'sub': '2', 'a liquid-liquid separation process that separates the second liquid stream exiting the vapor-liquid separation process and the third liquid stream exiting the compression-cooling process into a fourth liquid stream comprising EDC and CE and a fifth liquid stream comprising CuCl, CuCl, NaCl, and water, and'}, 'a scrubbing process that reacts an alkali with the second liquid stream exiting the vapor-liquid separation process and/or the fifth liquid stream exiting the liquid-liquid separation process,, 'separating and purify the one or ...

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Номер записи: 47
03-03-2022 дата публикации

METHOD

Номер: US20220062866A1
Автор: REES Claire, Sharratt Andrew
Принадлежит:

A method for activating a chromia-based catalyst for fluorination and/or hydrofluorination comprises the steps of: a) optionally drying the catalyst at a temperature of from 100° C. to 400° C.; b) treating the catalyst with a composition comprising HF at a temperature of from 100° C. to about 500° C.; c) treating the catalyst with a composition comprising an oxidant and optionally HF at a temperature of from about 100° C. to about 500° C. 1. A method for activating a catalyst comprising the steps of:a) optionally drying the catalyst at a temperature of from 100° C. to 400° C.;b) treating the catalyst with a composition comprising HF at a temperature of from 100° C. to about 500° C.;c) treating the catalyst with a composition comprising an oxidant and optionally HF at a temperature of from about 100° C. to about 500° C.2. The method according to claim 1 , wherein the oxidant is selected from air claim 1 , oxygen (O) claim 1 , chlorine (Cl) claim 1 , chlorine monofluoride (ClF) claim 1 , nitrogen trifluoride (NF).3. The method according to claim 1 , wherein the molar ratio of HF to oxidant is from 1:20 to 20:1.4. The method according to claim 3 , wherein the molar ratio of HF to oxidant is from 15:1 to 1:3 claim 3 , more preferably from 11:1 to 1:1.5. The method according to claim 1 , wherein the catalyst is a chromia catalyst.6. The method according to claim 5 , wherein the catalyst is a chromia catalyst comprising zinc or a compound thereof claim 5 , such as zinc oxide.7. The method according to claim 6 , wherein zinc oxide is present in the catalyst at a level of from 1% wt to 10% wt claim 6 , more preferably from 2% wt to 8% wt claim 6 , more preferably from 3% wt to 7% wt based on the total weight of the catalyst.8. The method according to claim 1 , wherein step (b) and/or (c) is carried out at a pressure of from 0.1 bara to 20 bara claim 1 , preferably from 3 bara to 10 bara.9. The method according to claim 1 , wherein step (b) and/or (c) is carried out over an ...

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Номер записи: 48
03-03-2022 дата публикации

METHOD FOR PRODUCING FLUORINATED IODINATED ORGANIC COMPOUND

Номер: US20220064098A1
Автор: Higashi Masahiro, KISHIKAWA Yosuke, KITAMURA Tsugio
Принадлежит:

The present disclosure addresses the problem of providing a novel method for producing a fluorinated iodinated organic compound.

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Номер записи: 49
25-02-2021 дата публикации

CATALYST FOR PROCESSING OXYCHLORINATION OF HYDROCARBON, PREPARATION METHOD THEREFOR, AND PREPARATION METHOD OF OXYCHLORINATED COMPOUND OF HYDROCARBON USING SAME

Номер: US20210053036A1
Автор: BANG Jungup, BANG Yongju, Hwang Gyo Hyun, JUNG Jongwook, KIM Do Heui, Kim Jeongeun, RYOU Youngseok
Принадлежит:

A catalyst for an oxychlorination process of hydrocarbons, a preparation method thereof, and a method for preparing an oxychlorination compound of hydrocarbons using the same. 1. A catalyst for an oxychlorination process of hydrocarbons , the catalyst comprising:a catalyst material comprising (a) copper, (b) a first co-catalyst comprising one or more selected from the group consisting of an alkali metal and an alkaline earth metal, and (c) a second co-catalyst comprising a lanthanide metal; anda carrier comprising cerium oxide.2. The catalyst of claim 1 , where the catalyst material is present in the catalyst in an amount of 5 wt % to 25 wt % based on a total weight of the catalyst.3. The catalyst of claim 1 , wherein an amount of the first co-catalyst and an amount of the second co-catalyst is the same as or different from each other claim 1 , and the amount of the first co-catalyst and the amount of the second co-catalyst are each in an amount of 10 parts by weight to 2 claim 1 ,000 parts by weight based on 100 parts by weight of copper.4. The catalyst of claim 1 , wherein the first co-catalyst comprises one or more selected from the group consisting of sodium claim 1 , lithium claim 1 , potassium claim 1 , magnesium claim 1 , and calcium.5. The catalyst of claim 1 , wherein the second co-catalyst further comprises one or more selected from the group consisting of yttria and a rare earth element.6. The catalyst of claim 1 , wherein the carrier has a specific surface area of 50 m/g to 250 m/g.7. The catalyst of claim 1 , wherein cerium oxide is present in the carrier in an amount of 80 wt % or more based upon a total 100 wt % of the carrier.8. The catalyst of claim 1 , wherein the catalyst is in the form of particles having a diameter of 0.1 mm to 1.0 mm.9. A method for preparing the catalyst for an oxychlorination process of hydrocarbons according to claim 1 , the method comprising:preparing a carrier comprising cerium oxide; andsupporting an active material ...

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Номер записи: 50
14-02-2019 дата публикации

METHOD FOR PRODUCING FLUORINATED ORGANIC COMPOUNDS

Номер: US20190047924A1
Автор: Johnson Robert C., Merkel Daniel C., Tung Hsueh Sung
Принадлежит:

Provided is a process for making 2-chloro-1,1,1,2-tetrafluoropropane. The process has the step of hydrofluorinating 2-chloro-3,3,3-trifluoropropene in the presence of a catalyst selected from the group consisting of SbCl, SbCl, SbF, TiCl, SnCl, CrO, and fluorinated CrO. 1. A process for making 2-chloro-1 ,1 ,1 ,2-tetrafluoropropane , comprising hydrofluorinating 2-chloro-3 ,3 ,3-trifluoropropene in the presence of a catalyst selected from the group consisting of SbCl , SbCl , SbF , TiCl , SnCl , CrO , and fluorinated CrO.2. The process of claim 1 , wherein the catalyst is in bulk form.3. The process of claim 1 , wherein the catalyst is supported.4. The process of claim 3 , wherein the support is selected from the group consisting of carbon claim 3 , alumina claim 3 , fluorinated alumina claim 3 , or aluminum fluoride.5. The process of where the catalyst is activated using anhydrous hydrogen fluoride.6. The process of where the catalyst is activated using anhydrous chlorine.7. The process of claim 1 , wherein the hydrofluorination is vapor-phase fluorination.8. The process of claim 7 , wherein the catalyst for vapor-phase fluorination reaction is SbClsupported on activated carbon.9. The process of claim 7 , wherein the catalyst for vapor-phase fluorination reaction is CrObulk or supported.10. The process of claim 7 , wherein the catalyst for vapor-phase fluorination reaction is fluorinated CrObulk or supported.11. The process of claim 7 , wherein the vapor-phase fluorination reaction is carried out at a temperature of about 50° C. to about 120° C. and at a pressure of about 30 psia to about 175 psia.12. The process of claim 7 , wherein the mole ratio of hydrogen fluoride to 2-chloro-3 claim 7 ,3 claim 7 ,3-trifluoropropene is from about 2:1 to about 15:1.13. The process of claim 1 , wherein the hydrofluorination is liquid-phase fluorination.14. The process of claim 13 , wherein the catalyst for liquid-phase fluorination reaction is SbCl.15. The process of claim 13 , ...

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Номер записи: 51
14-02-2019 дата публикации

METHODS FOR REMOVING HALOGENATED ETHYLENE IMPURITIES IN 2, 3, 3, 3-TETRAFLUOROPROPENE PRODUCT

Номер: US20190047927A1
Автор: Tung Hsueh Sung, WANG HAIYOU
Принадлежит: HONEYWELL INTERNATIONAL INC.

Disclosed is a composition comprised of at least one compound selected from 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoro-1-propene and 1-chloro-3,3,3-trifluoropropene and halogenated impurity selected from the group consisting of HFO-1141 (CH═CHF), HCFO-1140 (CH═CHCl), and HCFO-1131 (CH═CFCl and/or translcis-CHF═CHCl) and combination thereof, said halogenated impurity being present in said composition in an amount of 50 ppm or less. 1. A composition comprised of 2 ,3 ,3 ,3-tetrafluoropropene and a halogenated impurity comprising CH═CFCl , said halogenated impurity being present in said composition in an amount greater than 0 ppm and less than or equal to 50 ppm , wherein 2 ,3 ,3 ,3-tetrafluoropropene is present in said composition in at least 90% by weight.2. The composition according to wherein the hydrogenated impurity is present in said composition in an amount greater than 0 ppm but less than or equal to 20 ppm.3. The composition according to wherein the halogenated impurity is present in said composition in an amount greater than 0 ppm but less than or equal 10 ppm.4. The composition according to wherein one or more compounds selected from CFC□CH claim 1 , HFO-1243zf (CFCH═CH) claim 1 , HFO-1234ze (E/Z-CFCH═CHF) claim 1 , HCFO-1233zd (E/Z-CFCH═CHCl) claim 1 , HCFO-1233xf (CFCCl═CH) and combination thereof is additionally present.5. The composition according to wherein a compound selected from CFC≡CH claim 2 , HFO-1243zf (CFCH═CH) claim 2 , HFO-1234ze (E/Z-CFCH═CHF) claim 2 , HCFO-1233zd (E/Z-CFCH═CHCl) claim 2 , HCFO-1233xf (CFCCl═CH) and combination thereof is additionally present.6. The composition according to wherein a compound selected from CFC≡CH claim 3 , HFO-1243zf (CFCH═CH) claim 3 , HFO-1234ze (E/Z-CFCH═CHF) claim 3 , HCFO-1233zd (E/Z-CFCH═CHCl) claim 3 , HCFO-1233xf (CFCCl═CH) and combination thereof is additionally present.7. The composition according to wherein the compound is HFO-1243zf (CFCH═CH) claim 6 , HFO-1234ze (E/Z-CFCH═CHF) claim 6 , or ...

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Номер записи: 52
25-02-2016 дата публикации

PROCESS FOR THE REDUCTION OF RfC=CX IMPURITIES IN FLUOROOLEFINS

Номер: US20160052842A1
Автор: David Richard Corbin, Haiyou Wang, Haluk Kopkalli, Mario Joseph Nappa, Xuehui Sun
Принадлежит: Chemours Co FC LLC

This disclosure relates to processes which involve: contacting a mixture comprising at least one fluoroolefin and at least one R f C≡CX impurity with at least one zeolite to reduce the concentration of the at least one R f C≡CX impurity in the mixture; wherein R f is a straight-chain perfluorinated alkyl group, and X is H, F, Cl, Br or I; and the at least one zeolite is selected from the group consisting of zeolites having pore opening of at least 4 Angstroms and no more than about 5 Angstroms, zeolites having pore opening of at least about 5 Angstroms and Sanderson electronegativity of no more than about 2.6, and mixtures thereof; provided that the at least one zeolite is not zeolite 4A. This disclosure also relates to processes for making at least one hydrotetrafluoropropene product selected from the group consisting of CF 3 CF═CH 2 , CF 3 CH═CHF, and mixtures thereof; and relates to processes for making at least one hydrochlorotrifluoropropene product selected from the group consisting of CF 3 CCl═CH 2 , CF 3 CH═CHCl, and mixtures thereof.

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Номер записи: 53
25-02-2021 дата публикации

Process for Preparing Fluorobenzene by Direct Fluorination

Номер: US20210053895A1
Автор: DU Hongjun, Wu Wenting, Zhou Changyue
Принадлежит: Fujian Yongjing Technology Co., Ltd

The invention relates to a use of a fluorination gas, wherein the elemental fluorine (F) is present in a high concentration, for example, in a concentration of elemental fluorine (F), especially of equal to much higher than 15% or even 20% by volume (i.e., at least 15% or even 20% by volume), and to a process for the manufacture of a fluorinated benzene by direct fluorination employing a fluorination gas, wherein the elemental fluorine (F) is present in a high concentration. The process of the invention is directed to the manufacture of a fluorinated benzene by direct fluorination. Especially the invention is of interest in the preparation of fluorinated benzene, final products and as well intermediates, for usage in agro-, pharma-, electronics-, catalyst, solvent and other functional chemical applications. The fluorination process of the invention may be performed batch-wise or in a continuous manner. If the process of the invention is performed batch-wise, a column (tower) reactor may be used. If the process of the invention is continuous a microreactor may be used. The invention is characterized in that the starting compound is benzene, and the fluorinated compound produced is a fluorinated benzene, preferably monofluorobenzene. 1. A process for the manufacture of a fluorinated benzene by direct fluorination , wherein the process comprises the steps of:a) provision of a liquid medium comprising or consisting of benzene as starting compound; (wherein one or more hydrogen atoms are capable of being substituted by means of a halogenation reaction);{'sub': '2', 'b) provision of a fluorination gas comprising or consisting of elemental fluorine (F), wherein the fluorine is present in the fluorination gas in a high concentration of at least substantially more than, in particular very much more than 15% by volume (vol.-%), preferably equal to or more than 20% by volume (vol.-%);'}{'sub': '2', 'c) provision of a reactor or reactor system, resistant to elemental fluorine ( ...

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Номер записи: 54
08-05-2014 дата публикации

CATALYST FOR THE OXYCHLORINATION OF ETHYLENE TO 1, 2-DICHLOROETHANE

Номер: US20140128643A1
Автор: Kramer Keith, Tompers Rolf
Принадлежит:

This invention relates to a catalyst containing from about 2 up to about 8% by wt. of copper, zero up to about 0.6 moles/kg of one or more alkali metal(s), from about 0.08 up about 0.85 moles/kg of one or more alkaline earth metals and from about 0.09 up to about 0.9 moles/kg of one or more transition metals selected from the group consisting of Mn, Re and mixtures thereof, where all the metals are impregnated in form of their chlorides or other water soluble salts on a fluidizable support with a BET surface area of from about 80 up to about 220 m/g. A process for the oxychlorination of ethylene to form 1,2-dichloroethane using such a catalyst having good activity, good selectivity and low tendency to stickiness in fluidized bed oxychlorination reactions. 1. A catalyst composition comprising a support having deposited thereon catalytically active metals comprising from about 2 up to about 8% by wt. of copper , zero up to about 0.6 moles/kg of one or more alkali metals , from about 0.08 up about 0.85 moles/kg of one or more alkaline earth metals and from about 0.09 up to about 0.9 moles/kg of one or more transition metals selected from the group consisting of Mn , Re and mixtures thereof , all based upon the total weight of the catalyst composition , where all the metals are impregnated in form of their chlorides or other water soluble salts on a fluidizable support with a BET surface of from about 80 up to about 220 m/g.2. The catalyst composition according to wherein the catalytically active metal composition comprises from about 3% to about 6% by weight of copper claim 1 , zero to about 0.4 moles/kg of alkali metal(s) claim 1 , from about 0.2% to about 0.75 moles/kg of alkaline earth metal(s) claim 1 , and from about 0.09 up to about 0.4 moles/kg of transition metal(s).3. The catalyst composition of wherein the support is an alumina support.4. The catalyst composition of wherein the alkali metal is at least one metal selected from the group consisting of potassium ...

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Номер записи: 55
23-02-2017 дата публикации

PROCESS FOR PRODUCING C3 CHLORINATED ALKANE AND ALKENE COMPOUNDS

Номер: US20170050904A1
Автор: KUBICEK Pavel, ONDRUS Zdenek, SLADEK Petr
Принадлежит:

A process for producing a reaction mixture comprising a plurality of Cchlorinated alkane isomers comprising chlorinating a Cchlorinated alkane starting material in a chlorination zone to produce the plurality of Cchlorinated alkane isomers, the plurality of Cchlorinated alkane isomers each having at least one more chlorine atom than the Cchlorinated alkane starting material, wherein the concentration of the Cchlorinated alkane starting material is controlled such that conversion of the Cchlorinated alkane starting material to the plurality of Cchlorinated alkane isomers, represented by the molar ratio of the Cchlorinated alkane starting material:Cchlorinated alkane isomers in the reaction mixture present in the chlorination zone, does not exceed about 40:60. 1. A process for producing a reaction mixture comprising a plurality of Cchlorinated alkane isomers comprising chlorinating a Cchlorinated alkane starting material in a chlorination zone to produce the plurality of Cchlorinated alkane isomers , the plurality of Cchlorinated alkane isomers each having at least one more chlorine atom than the Cchlorinated alkane starting material , wherein the concentration of the Cchlorinated alkane starting material is controlled such that conversion of the Cchlorinated alkane starting material to the plurality of Cchlorinated alkane isomers , represented by the molar ratio of the Cchlorinated alkane starting material:Cchlorinated alkane isomers in the reaction mixture present in the chlorination zone , does not exceed about 40:60.2. The process of claim 1 , wherein chlorination of the Cchlorinated alkane starting material is carried out by reacting the starting material with chlorine claim 1 , the chlorine preferably having a purity of about 99.5% or higher.3. The process of claim 2 , wherein the chlorine is supplied to the chlorination zone substoichiometrically with respect to the Cchlorinated starting material.4. The process of claim 2 , wherein the molecular chlorine is ...

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Номер записи: 56
26-02-2015 дата публикации

CHLORINATING AGENTS

Номер: US20150057471A1
Автор: Grandbois Matthew Lee, JR. William J., Kruper, MYERS JOHN D., Tirtowidjojo Max M
Принадлежит: Dow Global Technologies LLC

The use of sulfuryl chloride, either alone or in combination with chlorine, as a chlorinating agent is disclosed. 1. A chemical manufacturing process comprising the use of SOClas a chlorinating agent in at least one chlorination step and further in the presence of no catalyst , an ionic chlorination catalyst or a free radical initiator , wherein a process feedstock comprises a saturated hydrocarbon having from 1 to 3 carbon atoms and/or a saturated halogenated hydrocarbon having from 1 to 3 carbon atoms and wherein , when the chlorination step is conducted in the presence of a free radical initiator , the free radical initiator is selected from the group consisting of UV/visible light and/or initiators comprising one or more chlorine or azo-groups.2. The process of claim 1 , wherein the process comprises one for the manufacture of chlorinated propanes and/or propenes.3. The process of claim 2 , wherein the chlorinated propane and/or propene comprises 3-5 chlorine atoms.4. The process of claim 1 , wherein the process feedstock comprises propane and/or one or more monochloropropanes.5. The process of claim 1 , wherein the process feedstock comprises a dichloropropane.6. The process of claim 1 , wherein the at least one chlorination step is conducted in the presence of a free radical initiator or an ionic chlorination catalyst.7. The process of claim 6 , wherein the free radical initiator comprises azobisisobutyronitrile claim 6 , 2 claim 6 ,2′-azobis(2 claim 6 ,4-dimethyl valeronitrile claim 6 , dimethyl 2 claim 6 ,2′-azobis(2-methylpropionate) claim 6 , 1 claim 6 ,1′-azobis(cyclohexane-1-carbonitrile) or 1 claim 6 ,1′-azobis(cyclohexanecarbonitrile) claim 6 , ultraviolet light or combinations of these.8. The process of claim 6 , wherein the ionic chlorination catalyst comprises AlCl claim 6 , I claim 6 , FeCl claim 6 , sulphur claim 6 , iron claim 6 , or combinations of these.9. The process of claim 6 , further comprising the use of a solvent in the chlorination step ...

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Номер записи: 57
15-05-2014 дата публикации

METHOD AND APPARATUS FOR CONTINUOUSLY PRODUCING 1,1,1,2,3-PENTAFLUOROPROPANE WITH HIGH YIELD

Номер: US20140135538A1
Автор: Cho ook jae, Jung Jin-A, Kim Bong Seok, Kim Daewoo, Kim Donghyun, PARK Byounghun, Park Su Jin, Ryu Jae Kug
Принадлежит: FOOSUNG CO., LTD.

A method and apparatus for method of continuously producing 1,1,1,2,3-pentafluoropropane with high yield is provided. The method includes (a) bringing a CoF-containing cobalt fluoride in a reactor into contact with 3,3,3-trifluoropropene to produce a CoF-containing cobalt fluoride and 1,1,1,2,3-pentafluoropropane, (b) transferring the CoF-containing cobalt fluoride in the reactor to a regenerator and bringing the transferred CoF-containing cobalt fluoride into contact with fluorine gas to regenerate a CoF-containing cobalt fluoride, and (c) transferring the CoF-containing cobalt fluoride in the regenerator to the reactor and employing the transferred CoF-containing cobalt fluoride in Operation (a). Accordingly, the 1,1,1,2,3-pentafluoropropane can be continuously produced with high yield from the 3,3,3-trifluoropropene using a cobalt fluoride (CoF/CoF) as a fluid catalyst, thereby improving the reaction stability and readily adjusting the optimum conversion rate and selectivity. 1. A method of continuously producing 1 ,1 ,1 ,2 ,3-pentafluoropropane , comprising:{'sub': 3', '2, '(a) bringing a CoF-containing cobalt fluoride in a reactor into contact with 3,3,3-trifluoropropene to produce a CoF-containing cobalt fluoride and 1,1,1,2,3-pentafluoropropane;'}{'sub': 2', '2', '3, '(b) transferring the CoF-containing cobalt fluoride in the reactor to a regenerator and bringing the transferred CoF-containing cobalt fluoride into contact with fluorine gas to regenerate a CoF-containing cobalt fluoride; and'}{'sub': 3', '3, '(c) transferring the CoF-containing cobalt fluoride in the regenerator to the reactor and employing the transferred CoF-containing cobalt fluoride in Operation (a).'}2. The method of claim 1 , wherein the contact of the CoF-containing cobalt fluoride with the 3 claim 1 ,3 claim 1 ,3-trifluoropropene in Operation (a) and the contact of the CoF-containing cobalt fluoride with the fluorine gas in Operation (b) are carried out by countercurrent contact.3. The ...

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Номер записи: 58
02-03-2017 дата публикации

PRODUCTION METHOD FOR COMPOSITION CONTAINING 1,2-DICHLORO-3,3,3-TRIFLUOROPROPENE (HCFO-1223xd) AND/OR 1,1,2-TRICHLORO-3,3,3-TRIFLUOROPROPENE (CFO-1213xa)

Номер: US20170057891A1
Автор: Daisuke Karube, Shun OHKUBO, Tatsuya TAKAKUWA
Принадлежит: Daikin Industries Ltd

The present invention provides a method that produces a composition containing 1223xd and/or 1213xa by a gas-phase reaction, and that achieves production efficiency higher than known methods. The present invention provides a method for producing a composition containing at least one fluorine-containing olefin selected from 1,2-dichloro-3,3,3-trifluoropropene (HCFO-1223xd) and 1,1,2-trichloro-3,3,3-trifluoropropene (CFO-1213xa), the method comprising subjecting at least one starting compound selected from a chlorine-containing alkane represented by Formula (1-1): CF 3 CHXCHX 2 , wherein each X is independently H or Cl, with the proviso that at least one X represents Cl, and a chlorine-containing alkene represented by Formula (1-2): CF 3 CX═CX 2 , wherein each X is independently H or Cl, with the proviso that at least one X represents Cl, to a gas-phase oxychlorination reaction in a temperature range of 380° C. or lower in the presence of oxidative gas and hydrogen chloride gas.

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Номер записи: 59
04-03-2021 дата публикации

Growth inhibitor for forming thin film, method for forming thin film and semiconductor substrate prepared therefrom

Номер: US20210062338A1
Автор: Changbong YEON, Hyeran Byun, Jaesun Jung, Seokjong Lee, Sojung Kim, Taeho Song
Принадлежит: Soulbrain Co Ltd

The present invention relates to a growth inhibitor for forming a thin film, a method for forming a thin film using the same, and a semiconductor substrate prepared therefrom, and more particularly, to a growth inhibitor for forming a thin film represented by Chemical Formula 1 below, a method for forming a thin film using the same, and a semiconductor substrate prepared therefrom. A n B m X o   [Chemical Formula 1] wherein A is carbon or silicon, B is hydrogen or a C1-C3 alkyl, X is a halogen, n is an integer from 1 to 15, o is an integer of 1 or more, and m is from 0 to 2n+1. According to present invention, it is possible to suppress side reactions to appropriately lower a thin film growth rate and remove process byproducts in the thin film, thereby preventing corrosion or deterioration and greatly improving step coverage and thickness uniformity of a thin film even when the thin film is formed on a substrate having a complicated structure.

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Номер записи: 60
17-03-2022 дата публикации

SYSTEMS AND METHODS FOR PROCESSING GASES

Номер: US20220080379A1
Автор: "OReilly Matthew Elijah", Ashcraft James Nathan, Hummelt Jason Samuel, Leeds Mathew, Ocampo Charles E., Santana Alexander Olson, Soane David S., Soderholm Mark Ellis
Принадлежит:

The invention includes a gas processing system for transforming a hydrocarbon-containing inflow gas into outflow gas products, where the system includes a gas delivery subsystem, a plasma reaction chamber, and a microwave subsystem, with the gas delivery subsystem in fluid communication with the plasma reaction chamber, so that the gas delivery subsystem directs the hydrocarbon-containing inflow gas into the plasma reaction chamber, and the microwave subsystem directs microwave energy into the plasma reaction chamber to energize the hydrocarbon-containing inflow gas, thereby forming a plasma in the plasma reaction chamber, which plasma effects the transformation of a hydrocarbon in the hydrocarbon-containing inflow gas into the outflow gas products, which comprise acetylene and hydrogen. The invention also includes methods for the use of this gas processing system. 1. A method for processing a methane-containing inflow gas to produce outflow gas products , comprising directing the methane-containing inflow gas into a system comprising: a gas delivery subsystem , a plasma reaction chamber , a microwave subsystem , a vacuum subsystem , and an effluent separation and disposal subsystem; wherein the gas injector comprises an injector body comprising two or more separate gas feeds, a first gas feed conveying the methane-containing inflow gas into the plasma reaction chamber through a first set of one or more nozzles, and a second gas feed conveying a hydrogen-rich reactant gas into the plasma reaction chamber through a second set of one or more nozzles,', 'wherein the delivery conduit is in fluid communication with the gas injector, wherein the delivery conduit comprises a feed gas conveying circuit that delivers the methane-containing inflow gas into the gas injector, and', 'wherein the delivery conduit further comprises an auxiliary gas conveying circuit that delivers the hydrogen-rich reactant gas into the gas injector, and', 'wherein the methane-containing inflow gas ...

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Номер записи: 61
28-02-2019 дата публикации

COMPOSITIONS AND METHODS FOR HYDROCARBON FUNCTIONALIZATION

Номер: US20190062255A1
Автор: Boaz Nicholas C., Fortman George, Groves John T., Gunnoe Thomas Brent
Принадлежит:

Embodiments of the present disclosure provide for methods of hydrocarbon functionalization, methods and systems for converting a hydrocarbon into a compound including at least one group ((e.g., hydroxyl group) (e.g., methane to methanol)), functionalized hydrocarbons, and the like. Systems and methods as described herein can utilize photocatalysis. 1. A method , comprising:{'sub': a', 'n', '4', '4', '3', '3, 'sup': +', '+', '+, 'mixing AX, an iodine-based compound, and a source of functionalization to form a first mixture, wherein A is selected from the group consisting of: hydrogen, lithium, sodium, potassium, beryllium, magnesium, calcium, strontium, barium, transition metals, aluminum, gallium, thallium, indium, tin, sulfur, ammonium (NH), alkylammonium, phosphonium (PH), alkylphosphonium, arylphosphonium, or trimethyl sulfonium ([S(CH)]) and a combination thereof, wherein X is chlorine or bromine, wherein subscript “a” is an oxidation state of X and subscript “n” is an oxidation state of A;'}mixing the first mixture with a hydrocarbon in the gas phase to form a second mixture; andapplying light from a light source to the second mixture to make a functionalized hydrocarbon.2. The method of claim 1 , further comprising:converting the functionalized hydrocarbon to a compound including at least one group selected from the group consisting of: hydroxyl, halide, carbonyl, and a combination thereof.3. The method of claim 2 , wherein the compound is selected from an alcohol or glycol.4. The method of claim 2 , wherein the compound is methanol claim 2 , ethanol claim 2 , or propanol.5. The method of claim 1 , wherein the hydrocarbon is selected from the group consisting of: methane claim 1 , ethane claim 1 , propane claim 1 , butane claim 1 , and a combination thereof.6. The method of claim 1 , wherein the hydrocarbon is aliphatic.7. The method of claim 1 , wherein the hydrocarbon is aromatic.8. The method of claim 1 , wherein AXis selected from the group consisting of: ...

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Номер записи: 62
27-02-2020 дата публикации

PROCESSES FOR PRODUCING TRIFLUOROIODOMETHANE

Номер: US20200062678A1
Автор: BANAVALI RAJIV, NAIR HARIDASAN K., Singh Rajiv Ratna
Принадлежит:

The present disclosure provides a gas-phase process for producing trifluoroiodomethane, the process comprising providing a reactant stream comprising hydrogen iodide and trifluoroacetyl halide selected from the group consisting of trifluoroacetyl chloride, trifluoroacetyl fluoride, trifluoroacetyl bromide, and combinations thereof, and reacting the reactant stream in the presence of a catalyst at a temperature from about 200° C. to about 600° C. to produce a product stream comprising the trifluoroiodomethane. 1. A gas-phase process for producing trifluoroiodomethane (CFI) , the process comprising:providing a reactant stream comprising hydrogen iodide and trifluoroacetyl halide selected from the group consisting of trifluoroacetyl chloride, trifluoroacetyl fluoride, trifluoroacetyl bromide, and combinations thereof; andreacting the reactant stream in the presence of a catalyst at a reaction temperature from about 200° C. to about 600° C. to produce a product stream comprising the trifluoroiodomethane.2. The process of claim 1 , wherein in the providing step claim 1 , the reactant stream comprises less than about 500 ppm by volume of oxygen.3. The process of claim 1 , wherein in the providing step claim 1 , the hydrogen iodide comprises less than about 500 ppm by weight of water.4. The process of claim 1 , wherein in the providing step claim 1 , a mole ratio of the hydrogen iodide to the trifluoroacetyl halide is from about 0.1:1 to about 2:1.5. The process of claim 4 , wherein in the providing step claim 4 , the mole ratio of the hydrogen iodide to the trifluoroacetyl halide is from about 0.8:1 to about 1.5:1.6. The process of claim 1 , wherein in the providing step claim 1 , the trifluoroacetyl halide comprises trifluoroacetyl chloride.7. The process of claim 1 , wherein in the reacting step claim 1 , a contact time of the reactant stream with the catalyst is from about 0.5 second to about 60 seconds.8. The process of claim 1 , wherein in the reacting step claim 1 , ...

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Номер записи: 63
08-03-2018 дата публикации

Method for chlorination and dehydrogenation of ethane

Номер: US20180065902A1
Автор: Jingguang ZHONG, Xing Liu, Xuehua Liu
Принадлежит: Zhongke Yigong (Xiamen) Chemical Tech Co Ltd

The present invention relates to a method for chlorination and dehydrogenation of ethane, comprising: mixing and reacting a low-melting-point metal chloride with C 2 H 6 , such that the low-melting-point metal chloride is reduced to a liquid-state low-melting-point metal, and the C 2 H 6 is chlorinated and dehydrogenized to give a mixed gas containing HCl, C 2 H 6 , C 2 H 4 , C 2 H 2 and C 2 H 3 Cl. In the method, the low-melting-point metal chloride is used as a raw material for chlorination and dehydrogenation, and the low-melting-point metal produced after the reaction is used as an intermediate medium. The method has the characteristics of simple process, low cost and high yield. Moreover, some acetylene and vinyl chloride can be produced as by-products at the same time when the ethylene is produced, by controlling the ratio of ethane to the chloride as desired in production.

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Номер записи: 64
11-03-2021 дата публикации

Method for preparing sulfated metal oxide catalyst for chlorination, and chlorination method using sulfated metal oxide catalyst

Номер: US20210069689A1
Автор: Ho Jeong Chae, Hyung Ju Kim, Jip KIM, Young Min Kim
Принадлежит: Korea Research Institute of Chemical Technology KRICT

The present invention relates to a method for preparing a sulfated metal oxide catalyst for chlorination, and a method for producing a reaction product containing methyl chloride (CH 3 Cl) by using the sulfated metal oxide catalyst. A sulfated zirconia catalyst and a sulfated tin oxide catalyst are disclosed as the sulfated metal oxide catalyst for chlorination.

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Номер записи: 65
11-03-2021 дата публикации

FLUOROOLEFIN PRODUCTION METHOD

Номер: US20210070678A1
Автор: Chaki Takehiro, NAKAUE Tsubasa, Usui Takashi
Принадлежит: DAIKIN INDUSTRIES, LTD.

The present disclosure provides a method for producing fluoroolefin represented by formula (1): CXX═CXX, wherein X, X, X, and Xare the same or different, and represent a hydrogen atom or a fluorine atom, with high selectivity. Specifically, the present disclosure is a method for producing fluoroolefin represented by formula (1), wherein the method includes the step of performing dehydrofluorination by bringing a fluorocarbon represented by formula (2): CXXFCXXH, wherein X, X, X, and Xare as defined above, into contact with a base, and the dehydrofluorination step is performed in the liquid phase at a temperature of −70° C. or higher to less than 120° C. 1. A method for producing a fluoroolefin represented by formula (1): CXX═CXX , wherein X , X , X , and Xare the same or different , and represent a hydrogen atom or a fluorine atom ,{'sup': 1', '2', '3', '4', '1', '2', '3', '4, 'the method comprising a step of performing dehydrofluorination by bringing a fluorocarbon represented by formula (2): CXXFCXXH, wherein X, X, X, and Xare as defined above, into contact with a base,'}the dehydrofluorination step being performed in the liquid phase at a temperature of −70° C. or higher to less than 120° C.2. The production method according to claim 1 , wherein the fluoroolefin represented by formula (1) is at least one member selected from the group consisting of 1 claim 1 ,2-difluoroethylene (HFO-1132) claim 1 , 1 claim 1 ,1-difluoroethylene (HFO-1132a) claim 1 , and trifluoroethylene (HFO-1123).3. The production method according to claim 1 , wherein the fluorocarbon represented by formula (2) is at least one member selected from the group consisting of 1 claim 1 ,1 claim 1 ,1-trifluoroethane (HFC-143a) claim 1 , 1 claim 1 ,1 claim 1 ,2-trifluoroethane (HFC-143) claim 1 , 1 claim 1 ,1 claim 1 ,2 claim 1 ,2-tetrafluoroethane (HFC-134) claim 1 , and 1 claim 1 ,1 claim 1 ,1 claim 1 ,2-tetrafluoroethane (HFC-134a).4. The production method according to claim 1 , wherein the base is ...

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Номер записи: 66
15-03-2018 дата публикации

CATALYST AND PROCESS USING THE CATALYST

Номер: US20180072641A1
Автор: Sharratt Andrew P
Принадлежит: MEXICHEM AMANCO HOLDING S.A. DE C.V.

A new chromium-containing fluorination catalyst is described. The catalyst comprises an amount of zinc that promotes activity and from 0.1 to 8.0% by weight of the chromium in the catalyst based on the total weight of the chromium is present as chromium (VI). The use of the zinc-promoted, chromium-containing catalyst in a fluorination process in which a hydrocarbon or halogenated hydrocarbon is reacted with hydrogen fluoride in the vapour-phase at elevated temperatures is also described. 1. A chromium-containing fluorination catalyst comprising from 0.5 to less than 3% by weight of zinc based on the total weight of the catalyst , wherein from 0.1 to 8.0% by weight of the chromium in the catalyst based on the total weight of said chromium is present as chromium (VI) and wherein the catalyst is amorphous or partially crystalline comprising less than 5.0% by weight of crystalline compounds of chromium and/or zinc.2. The catalyst of claim 1 , wherein from 92.0 to 99.9% by weight of the chromium in the catalyst based on the total weight of said chromium is present as chromium (III).3. The catalyst of claim 1 , wherein from 0.5 to 5.0% by weight of the chromium in the catalyst based on the total weight of said chromium is present as chromium (VI).4. The catalyst of claim 3 , wherein from 95.0 to 99.5% by weight of the chromium in the catalyst based on the total weight of said chromium is present as chromium (III).5. The catalyst of claim 1 , wherein from 1.0 to 4.0% by weight of the chromium in the catalyst based on the total weight of said chromium is present as chromium (VI).6. The catalyst of claim 5 , wherein from 96.0 to 99.0% by weight of the chromium in the catalyst based on the total weight of said chromium is present as chromium (III).7. The catalyst of claim 2 , wherein the balance of the chromium in the catalyst is present as chromium (III).8. The catalyst of claim 1 , wherein the catalyst comprises one or more chromium (VI) compounds selected from the group ...

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Номер записи: 67
21-03-2019 дата публикации

NOVEL PROCESS FOR MANUFACTURING 2-CHLORO-3,3,3-TRIFLUOROPROPENE FROM 1,2-DICHLORO-3,3,3-TRIFLUOROPROPENE

Номер: US20190084905A1
Автор: Tung Hsueh Sung, WANG HAIYOU
Принадлежит: HONEYWELL INTERNATIONAL INC.

The present disclosure relates to a process for preparing 2-chloro-3,3,3-trifluorpropene comprising: (a) hydrogenating 1,2-dichloro-3,3,3-trifluoropropene in the presence of a hydrogenation catalyst to form 1,1,1-trifluoro-2,3-dichloropropane and (b) dehydrochlorinating 1,1,1-trifluoro-2,3-dichloropropane in the presence of a dehydrochlorination catalyst to form 2-chloro-3,3,3-trifluorpropene. 1. A process for preparing 2-chloro-3 ,3 ,3-trifluorpropene comprising:(a) hydrogenating 1,2-dichloro-3,3,3-trifluoropropene in the presence of a hydrogenation catalyst to form 1,1,1-trifluoro-2,3-dichloropropane and(b) dehydrochlorinating 1,1,1-trifluoro-2,3-dichloropropane in the presence of a dehydrochlorination catalyst to form 2-chloro-3,3,3-trifluorpropene.2. The process according to wherein the hydrogenation catalyst is a metal selected from palladium claim 1 , platinum claim 1 , rhodium claim 1 , iron claim 1 , cobalt claim 1 , nickel claim 1 , and copper claim 1 , which metal is unsupported or supported3. The process according to wherein the hydrogenation catalyst is supported on oxyfluoride of Al claim 1 , Cr claim 1 , Ti claim 1 , Zr claim 1 , or Mg or on fluorides of Al claim 1 , Cr claim 1 , Ti claim 1 , Zr claim 1 , or Mg.4. The process according to wherein the hydrogenation was conducted at a temperature ranging from about 50° C. to about 350° C.5. The process according to where conducted at a temperature ranging from about 100° C. to about 250° C.6. The process according to wherein the dehydrochlorination catalyst is a carbon solid selected from graphite claim 1 , carbon black claim 1 , activated carbon or three-dimensional matrix of carbonaceous material.7. The method according to wherein the dehydrochorination catalyst is a metal halide wherein the metal is lithium claim 1 , sodium claim 1 , potassium claim 1 , cesium claim 1 , magnesium claim 1 , calcium claim 1 , strontium claim 1 , barium claim 1 , iron claim 1 , cobalt claim 1 , nickel claim 1 , copper ...

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Номер записи: 68
21-03-2019 дата публикации

PROCESS FOR PRODUCING 2,3,3,3-TETRAFLUOROPROPENE

Номер: US20190084906A1
Автор: BEKTESEVIC SELMA, CHIU YUON, KOPKALLI HALUK, Merkel Daniel C., Tung Hsueh Sung, WANG HAIYOU
Принадлежит: HONEYWELL INTERNATIONAL INC.

The present invention relates, in part, to the discovery that, during the fluorination of certain fluoroolefin starting reagents, oligomerization/polymerization of such reagents reduces the conversion process and leads to increased catalyst deactivation. The present invention also illustrates that vaporizing such starting reagents in the presence of one or more organic co-feed reduces such oligomerization/polymerization and improves catalytic stability. 2. The composition of claim 1 , wherein the compound of Formula I comprises 1 claim 1 ,1 claim 1 ,2 claim 1 ,3-tetrachloropropene (1230xa); the compound of Formula II comprises 2 claim 1 ,3 claim 1 ,3 claim 1 ,3-tetrachloropropene (1230xf); and the compound of Formula III comprises 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,3-pentachloropropane (240db).3. The composition of claim 1 , wherein the at least one or more organic compounds are present in an amount ranging from 1 to 50 wt %.4. The composition of claim 3 , wherein the at least one or more organic compounds are present in an amount ranging from 3 to 30 wt %.5. The composition of claim 3 , wherein the at least one or more organic compounds are present in an amount ranging from 5 to 15 wt %.6. A composition comprising:(i) 2,3-dichloro-3,3-difluoropropene (1233xf); and(ii) at least one or more organic compounds selected from 1,2-dichloro-3,3,3-trifluoropropene (1223xd), trichlorofluoropropene (1231) isomers, 2-chloro-1,1,1,2-tetrafluoropropane (244bb) and unreacted 1,1,2,3-tetrachloropropene (1230xa), 2,3,3,3-tetrachloropropene (1230xf) and 1,1,1,2,3-pentachloropropane (240db).7. The composition of further comprising HCl.8. The composition of further comprising HF. The present invention relates to a process for preparing fluorinated organic compounds, more particularly to a process for preparing fluorinated olefins, and even more particularly to a process for producing 2,3,3,3-tetrafluoropropene (HFO-1234yf).Hydrofluoroolefins (HFOs), such as ...

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Номер записи: 69
02-04-2015 дата публикации

PROCESS FOR PREPARING N-(5-CHLORO-2-ISOPROPYLBENZYL)CYCLOPROPANAMINE

Номер: US20150094492A1
Автор: Himmler Thomas, LEHMANN Sandra, Müller Thomas Norbert, Riedrich Mathias, Rodefeld Lars, Volz Frank, VON MORGENSTERN Sascha
Принадлежит:

The present invention relates to a process for preparing N-(5-chloro-2-isopropylbenzyl)cyclopropanamine by hydrogenation of N-[(5-chloro-2-isopropylphenyl)methylene]cyclopropanamine over specific platinum catalysts. 12. The process according to wherein the acid used in step (g) to convert 3-bromo-4-isopropylaniline of the formula (VII) into the ammonium salts of the formula (VIII) is selected from the group consisting of HSO claim 9 , HCl claim 9 , HCOH claim 9 , HPO. The present invention relates to a process for preparing N-(5-chloro-2-isopropylbenzyl)cyclopropanamine by hydrogenation of N-[(5-chloro-2-isopropylphenyl)methylene]cyclopropanamine over specific platinum catalysts.Preparative processes for brominating strongly deactivated aromatics such as p-alkyl-substituted nitrobenzenes or nitrobenzene itself are described in the literature. The bromination of p-nitroethylbenzene by means of iron and bromine has been described with very low yields (55% yield of crude product and 34% after distillation) and with long reaction times of over 24 hours (1950, 72, 2804). The bromination of nitrobenzene by means of iron and bromine is described with a yield of always 60-75% of isolated compound (cf. 1941, Coll. Vol. I, 123, ibid. 1928, Vol 8, 48). A further possible way of brominating deactivated aromatics by means of potassium bromate is known (1981, 46, 2169-2171). However, reactions are problematical from a safety point of view because of the decomposition of potassium bromate in over 70% strength sulphuric acid solution. Furthermore, the bromination of p-nitrotoluene or nitrobenzene by means of N-bromosuccinimide in half-concentrated sulphuric acid is known (2006, 8, 645-6471965, 30, 304-306). However, this reaction requires N-bromosuccinimide as brominating reagent. Dimethyldibromohydantoin is found to be significantly more efficient (cf. 1994, 67, 1918-1921). However, trifluoromethanesulphonic acid, a very expensive reagent, is used here as proton source, which ...

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Номер записи: 70
05-05-2022 дата публикации

MONO-SUBSTITUTED CYCLOPENTADIENES AND METAL CYCLOPENTADIENYL COMPLEXES AND SYNTHESIS METHODS THEREOF

Номер: US20220135501A1
Автор: NIKIFOROV Grigory
Принадлежит:

A metal cyclopentadienyl complex has the formula:

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Номер записи: 71
19-03-2020 дата публикации

CATALYST AND PROCESS USING THE CATALYST FOR MANUFACTURING FLUORINATED HYDROCARBONS

Номер: US20200086299A1
Автор: McGUINNESS CLAIRE EEIZABETH, REES CLAIRE NICOLA, Sharratt Andrew Paul
Принадлежит: MEXICHEM FLUOR S.S. DE C.V.

A catalyst comprising one or more metal oxides, wherein the catalyst has a total pore volume equal to or greater than 0.3 cm/g and a mean pore diameter greater than or equal to 90 Å, where in the pore volume is measured using Nadsorption porosimetry and the mean pore diameter is measured using NBET adsorption porosimetry. 1. A catalyst comprising one or more metal oxides , wherein the catalyst has a total pore volume equal to or greater than 0.3 cm/g and a mean pore diameter greater than or equal to 90 Å , where in the pore volume is measured using Nadsorption porosimetry and the mean pore diameter is measured using NBET adsorption porosimetry.2. A catalyst according to claim 1 , wherein the total pore volume is equal to or greater than 0.4 cm/g.3. A catalyst according to claim 1 , wherein the average pore width of the catalyst is greater than or equal to 100 Å when measured by NBET adsorption porosimetry.4. A catalyst according to claim 1 , wherein the average pore width of the catalyst is greater than or equal to 130 Å when measured by NBJH adsorption porosimetry.5. A catalyst according to claim 1 , wherein the average pore width of the catalyst is greater than or equal to 90 Å when measured by NBJH desorption porosimetry.6. A catalyst according to provided in the form of pellet or pellets comprising a plurality of catalyst particles.7. A catalyst according to claim 6 , wherein the pellets comprise graphite.8. A catalyst according to claim 6 , wherein the pellets have a longest dimension from about 1 mm to about 100 mm.9. A catalyst according to claim 1 , wherein the metal is a transition metal.10. A catalyst according to claim 9 , wherein the transition metal comprises chromium.11. A catalyst according to claim 9 , wherein the transition metal comprises zinc.12. A catalyst according to which comprises at least 80 wt % chromia.13. A catalyst according to claim 1 , wherein the catalyst is unused.14. A method of preparing a catalyst as defined in claim 1 , ...

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Номер записи: 72
19-03-2020 дата публикации

Method for manufacturing difluoromethylene compound

Номер: US20200087230A1
Автор: Atsushi Shirai, Moe HOSOKAWA, Tatsuya Ohtsuka, Yoshichika Kuroki, Yosuke Kishikawa
Принадлежит: Daikin Industries Ltd

The problem to be solved by the present invention is to provide a novel method for producing a difluoromethylene compound. This problem is solved by a method for producing a difluoromethylene compound containing a —CF 2 — moiety, the method comprising step A of mixing: a) a carbonyl compound containing a —C(O)— moiety; b) optionally an amine; c) a fluoride represented by the formula: MF, wherein M represents a Group 1 element of the periodic table; d) a halogenated fluorine compound represented by the formula: XF n , wherein X represents chlorine, bromine, or iodine, and n is a natural number of 1 to 5; and e) sulfur chloride.

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Номер записи: 73
07-04-2016 дата публикации

Method to Improve Halogenation Reactions

Номер: US20160096786A1
Автор: Tung Hsueh Sung, Yang Terris
Принадлежит:

In the halogenation reaction of olefin/halo-olefin (i.e., organic), an excess amount of halogen gas (fluorine, chlorine, vaporized bromine and iodine, or their combination) is normally used in order to achieve as complete as possible conversion of the organic. In a conventional process, the excess halogen gas in the off-gas stream is scrubbed by caustic solution which increases the consumption of halogen and generates waste for disposal. The present invention provides a novel process to recover and reuse the excess halogen gas and thus reduce the operating cost of the process. 1. A process for the halogenation reaction of an organic starting material comprising olefin or halo-olefin compounds comprising the steps of:(a) conducting the halogenation reaction of the organic starting material in a first reactor using excess halogen, and(b) conducting the halogenation reaction of the organic starting material in a second reactor using the excess halogen from step (a) to halogenate an excess amount of the organic starting material contained in the second reactor.2. The process of claim 1 , wherein the reactors used in the process are halogenation reactors selected from the group consisting of CSTR claim 1 , plug flow reactor claim 1 , and combinations thereof.3. The process of claim 1 , which is conducted in a batch mode.4. The process of claim 1 , which is conducted in a continuous mode.5. The process of claim 1 , wherein the halogen gas used in the process is selected from the group consisting of fluorine claim 1 , chlorine claim 1 , bromine claim 1 , iodine claim 1 , and combinations thereof.6. The process of claim 1 , wherein the organic starting material comprises an olefin compound.7. The process of claim 1 , wherein the organic starting material comprises a halo-olefin compound.8. The process of claim 1 , which comprises the chlorination of HCC-1240za to make HCC-240db.9. The process of claim 8 , wherein the reactors used in the process are halogenation reactors ...

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Номер записи: 74
12-05-2022 дата публикации

Process for manufacture of 2-chloro-1,1,1-trifluoropropene

Номер: US20220144729A1
Автор: Changyue ZHOU, Yong Wang
Принадлежит: Fujian Yongjing Technology Co Ltd

The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Potential). Thus, the invention relates to a process, involving a carbene generation route, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and optionally of the compound 2-chloro-1,1,1-trifluoropropene (1233xf) via carbene route and compound 243db (2,3-dichloro-1,1,1-trifluoropropane). The invention also relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), wherein the compound 243db (2,3-dichloro-1,1,1-trifluoropropane) serves as a starting material, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf). Further, the invention relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), and of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), the initial starting materials are selected from the group consisting of com-pound 123 (2,2-dichloro-1,1,1-trifluoroethane), compound 124 (2-chloro-1,1,1,2-tetrafluoroethane), and compound 125 (pentafluoroethane).

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Номер записи: 75
12-05-2022 дата публикации

Process for manufacture of 2,3,3,3-tetrafluoropropene

Номер: US20220144731A1
Автор: Changyue ZHOU, Yong Wang
Принадлежит: Fujian Yongjing Technology Co Ltd

The present invention pertains to a novel process of manufacturing the compound 2,3,3,3-tetrafluoropropene (1234yf). The compound 1234yf is the newest refrigerant with zero OPD (Ozone Depleting Potential) and zero GWP (Global Warming Potential). Thus, the invention relates to a process, involving a carbene generation route, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), and optionally of the compound 2-chloro-1,1,1-trifluoropropene (1233xf) via carbene route and compound 243db (2,3-dichloro-1,1,1-trifluoropropane). The invention also relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), wherein the compound 243db (2,3-dichloro-1,1,1-trifluoropropane) serves as a starting material, for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf). Further, the invention relates to a process for the manufacture of the compound 2,3,3,3-tetrafluoropropene (1234yf), and of the compound 243db (2,3-dichloro-1,1,1-trifluoropropane), the initial starting materials are selected from the group consisting of com-pound 123 (2,2-dichloro-1,1,1-trifluoroethane), compound 124 (2-chloro-1,1,1,2-tetrafluoroethane), and compound 125 (pentafluoroethane).

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Номер записи: 76
26-06-2014 дата публикации

SYNTHESIS OF 1-BROMO-3,3,3-TRIFLUOROPROPENE

Номер: US20140179960A1
Автор: POSS Andrew J., SINGH Rajiv R., Zhai Yian
Принадлежит: HONEYWELL INTERNATIONAL INC.

In accordance with the present invention, processes for producing bromofluoropropenes in commercial quantities by reacting 3,3,3-trifluoropropyne with hydrogen bromide at elevated temperatures are provided. 1. A process of synthesizing bromotrifluoropropenes , the process comprising the steps of:mixing 3,3,3-trifluoropropyne with hydrogen bromide to make a first mixture; and, contacting the first mixture with a catalyst at a temperature of at least 50° C. to yield at least one bromotrifluoropropene.2. The process of claim 1 , wherein the at least one trifluoropropene comprises trans-1-bromo-3 claim 1 ,3 claim 1 ,3-trifluoropropene.3. The process of claim 1 , wherein the at least one trifluoropropene comprises cis-1-bromo-3 claim 1 ,3 claim 1 ,3-trifluoropropene.4. The process of claim 1 , wherein the at least one trifluoropropene comprises 2-bromo-3 claim 1 ,3 claim 1 ,3-trifluoropropene.5. The process of claim 1 , wherein the contacting step is conducted in the absence of an ionic solvent.6. The process of claim 1 , wherein the contacting step is conducted in the presence of an ionic solvent.7. The process of claim 6 , wherein the ionic solvent is selected from the group consisting of 1-alkyl-3-methylimidazolium claim 6 , 1-alkylpyridinium claim 6 , N-methyl-N-alkylpyrrolidinium and ammonium ions.8. The process of claim 6 , wherein the ionic solvent comprises 1-alkyl-3-methylimidazolium bromide.9. The process of claim 1 , wherein the catalyst is selected from the group consisting of mineral acids and Lewis acids.10. The process of claim 9 , wherein the catalyst is a metal salt.11. The process of claim 10 , wherein the metal salt comprises copper claim 10 , aluminum or antimony.12. The process of claim 1 , wherein the contacting step is conducted at a temperature of between 50 and 350° C.13. The process of claim 1 , wherein the molar ratio of HBr to 3 claim 1 ,3 claim 1 ,3-trifluoropropyne is at least 1 in the first mixture.14. The process of claim 13 , wherein the ...

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Номер записи: 77
16-04-2015 дата публикации

METHOD OF PRODUCING ALCOHOLS

Номер: US20150105592A1
Автор: Kling Miller Luisa, Miller Jorge
Принадлежит: Sajet Development LLC

A method of making alcohols involves forming of alcohol esters from liquid alkane halides and a solution of metallic salts of organic acids to produce gaseous alcohol esters for reaction with magnesium or metal hydroxides to form the alcohol and the metal salt of the organic acids. In an improvement method liquid phase alcohol esters instead of gaseous alcohol esters are produced from liquid alkane halides and a solution of metal salts of organic acids whose alkane esters are less soluble in water than that of the alkane halide and treating of the alcohol ester formed with magnesium or metal hydroxides to form the alcohol and the metal salt of the organic acids. 116.-. (canceled)17. A method of making alcohol comprising the steps of:reacting, in a fluo solids reactor, solids comprising a metal and a halogen forming a halogen gas and a metal oxide;condensing the halogen gas to form a liquid halogen and a gas comprising trace halogen;feeding the liquid halogen to a brominator;recovering the trace halogen from the gas by absorbing the trace halogen in water and extracting the trace halogen from the water with an alkane forming an alkane halide;absorbing the trace halogen from the gas comprising trace halogen with water;feeding the alkane halide to the brominator;reacting, in the brominator, the halogen and the alkane to form halogenated alkanes;reacting the metal oxide, formed in fluo solids reactor, with water forming a metal hydroxide;neutralizing at least a portion of the halogenated alkanes with the metal hydroxide, forming neutralized gasses and liquids;feeding the neutralized liquids to the fluo solids reactor;condensing a portion of the neutralized gasses and feeding the gas portion to the brominator;feeding the liquid portion of the condensed neutralized gasses to an intensive mixer;mixing the liquid portion of the condensed neutralized gasses with metal benzoate or butyrate, fed from a distiller/reactor, and reacting, forming a reacted liquid;decanting the ...

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Номер записи: 78
16-04-2015 дата публикации

METHOD FOR PRODUCING 2-CHLORO-3,3,3,-TRIFLUOROPROPENE (HCFC-1233xf)

Номер: US20150105595A1
Автор: Merkel Daniel C., TUNG HSUEH S.
Принадлежит:

The present invention relates to an improved method for manufacturing 2-chloro-3,3,3,-trifluoropropene (HCFC-1233xf) by reacting 1,1,2,3-tetrachloropropene, 1,1,1,2,3-pentachloropropane, and/or 2,3,3,3-tetrachloropropene with hydrogen fluoride, in a vapor phase reaction vessel in the presence of a vapor phase fluorination catalyst and stabilizer. HCFC-1233xf is an intermediate in the production of 2,3,3,3-tetrafluoropropene (HFO-1234yf) which is a refrigerant with low global warming potential. 1. A method of preparing fluorinated organic compounds comprising contacting at least one chlorocarbon selected from the group consisting of tetrachloropropene and pentachloropropane with a halogenating agent in the presence of at least one catalyst and at least one stabilizer under conditions effective to produce a C3 haloolefin.2. The method of wherein said C3 haloolefin is 2-chloro-3 claim 1 ,3 claim 1 ,3 claim 1 ,-trifluoropropene.3. The method of wherein said chlorocarbon is at least one compound selected from the group consisting of 1 claim 2 ,1 claim 2 ,2 claim 2 ,3-tetrachloropropene claim 2 , 2 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrachloropropene claim 2 , 1 claim 2 ,1 claim 2 ,1 claim 2 ,2 claim 2 ,3-pentachloropropane.4. The method of wherein said halogenating agent is a fluorinating agent.5. The method of wherein said fluorinating agent comprises hydrogen fluoride.6. The method of wherein at least a portion of said contacting step is conducted at a temperature of from about 80° C. to about 400° C.7. The method of wherein at least a portion of said contacting step is conducted at a pressure of from about 5 torr to about 150 psig.8. The method of wherein said contacting step comprises conducting at least a portion of said contacting step in the gas phase.9. The method of wherein said catalyst comprises at least one fluorination catalyst.10. The method of where the at least one fluorination catalyst is selected from the group consisting of CrO claim 9 , FeCl/C claim 9 ...

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Номер записи: 79
21-04-2016 дата публикации

PROCESS FOR PRODUCING A CHLORINATED C3-6 ALKANE

Номер: US20160107955A1
Автор: FILAS Karel, KUBICEK Pavel, ONDRUS Zdenek, SLADEK Petr
Принадлежит:

Disclosed is a process for producing a chlorinated C3-6 alkane comprising providing a reaction mixture comprising an alkene and carbon tetrachloride in a principal alkylation zone to produce chlorinated C3-6 alkane in the reaction mixture, and extracting a portion of the reaction mixture from the principal alkylation zone, wherein: 1. A process for producing a chlorinated Calkane comprising providing a reaction mixture comprising an alkene and carbon tetrachloride in a principal alkylation zone to produce chlorinated Calkane in the reaction mixture , and extracting a portion of the reaction mixture from the principal alkylation zone , wherein:{'sub': 3-6', '3-6, 'a) the concentration of the chlorinated Calkane in the reaction mixture in the principal alkylation zone is maintained at a level such that the molar ratio of chlorinated Calkane:carbon tetrachloride in the reaction mixture extracted from the alkylation zone does not exceed 95:5 when the principal alkylation zone is in continuous operation; and/or'}b) the reaction mixture extracted from the principal alkylation zone additionally comprises alkene and the reaction mixture is subjected to a dealkenation step in which at least about 50% or more by weight of the alkene present in the reaction mixture is extracted therefrom and at least about 50% of the extracted alkene is fed back into the reaction mixture provided in the principal alkylation zone; and/orc) the reaction mixture present in the principal alkylation zone and extracted from the principal alkylation zone additionally comprises a catalyst, and the reaction mixture extracted from the principal alkylation zone is subjected to an aqueous treatment step in which the reaction mixture is contacted with an aqueous medium in an aqueous treatment zone, a biphasic mixture is formed and an organic phase comprising catalyst is extracted from the biphasic mixture.2. The process of claim 1 , wherein the alkene is ethene claim 1 , propene claim 1 , and/or ...

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Номер записи: 80
21-04-2016 дата публикации

PROCESSES FOR PRODUCING VERY HIGH PURITY 1,1,1,2,3-PENTACHLOROPROPANE

Номер: US20160107956A1
Автор: FILAS Karel, KUBICEK Pavel, ONDRUS Zdenek, SLADEK Petr
Принадлежит:

Disclosed is a process for preparing a highly pure 1,1,1,2,3-pentachloropropane product, comprising 1. A process for preparing a highly pure 1 ,1 ,1 ,2 ,3-pentachloropropane product comprising:1-a) providing a reaction mixture comprising ethylene, carbon tetrachloride and a catalyst in a principal alkylation zone to produce 1,1,1,3-tetrachloropropane in the reaction mixture, and1-b) treating the reaction mixture obtained in step 1-a) to obtain a 1,1,1,3-tetrachloropropane feedstock;2-a) contacting the 1,1,1,3-tetrachloropropane feedstock with a catalyst in a dehydrochlorination zone to produce a reaction mixture comprising 1,1,1,3-tetrachloropropane and 1,1,3-trichloropropene, and2-b) treating the reaction mixture obtained in step 2-a) to obtain a 1,1,3-trichloropropene feedstock;3-a) contacting the 1,1,3-trichloropropene feedstock with chlorine in a reaction zone to produce a reaction mixture containing 1,1,1,2,3-pentachloropropane and 1,1,3-trichloropropene, the reaction zone being different from the dehydrochlorination zone, and3-b) treating the reaction mixture obtained in step 3-a) to obtain the highly pure 1,1,1,2,3-pentachloropropane product.2. The process of claim 1 , wherein treatment steps 1-b) claim 1 , 2-b) and/or 3-b) comprise a distillation step.3. The process of claim 1 , wherein treatment steps 1-b) claim 1 , 2-b) and/or 3-b) comprise contacting compositions comprising 1 claim 1 ,1 claim 1 ,1 claim 1 ,3-tetrachloropropane (in the case of step 1-b) claim 1 , 1 claim 1 ,1 claim 1 ,3-trichloropropene (in the case of step 2-b) claim 1 , and/or 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,3-pentachloropropane (in the case of step 3-b) with an aqueous medium.4. The process of claim 1 , wherein the feedstock produced in step 1-b) and used in step 2-a) comprises:about 99.0% or more, about 99.5% or more, about 99.7% or more, about 99.8% or more or about 99.9% or more of 1,1,1,3-tetrachloropropane,less than about 2000 ppm, less than about 1000 ppm, less than ...

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Номер записи: 81
21-04-2016 дата публикации

PROCESS FOR THE MANUFACTURE OF 2-CHLORO-1,1,1,2-TETRAFLUOROPROPANE BY LIQUID PHASE FLUORINATION OF 2-CHLORO-3,3,3-TRIFLUOROPROPENE

Номер: US20160107957A1
Автор: Bonnet Philippe, Pigamo Anne, Wendlinger Laurent
Принадлежит:

Process of catalytic fluorination in liquid phase of product 2-chloro-3,3,3-trifluoropropene into product 2-chloro-1,1,1,2-tetrafluoropropane, with an ionic liquid based catalyst. Process for manufacturing 2,3,3,3-tetrafluoropropene. 1. Process of catalytic fluorination in liquid phase of product 2-chloro-3 ,3 ,3-trifluoropropene into product 2-chloro-1 ,1 ,1 ,2-tetrafluoropropane , with an ionic liquid as a catalyst.2. Process according to claim 1 , wherein the catalyst is obtained by reaction of at least one halogenated or oxyhalogenated Lewis acid based on aluminum claim 1 , titanium claim 1 , niobium claim 1 , tantalum claim 1 , tin claim 1 , antimony claim 1 , nickel claim 1 , zinc or iron with a salt of general formula Y+A− claim 1 , in which A− denotes a halide anion or hexafluoroantimonate anion and Y+ a quaternary ammonium cation claim 1 , quaternary phosphonium cation or ternary sulfonium cation.3. Process according to any one of to claim 1 , wherein the catalyst is the fluorinated complex catalyst emimSbF.4. Process according to any one of to claim 1 , carried out in a catalyst-rich phase claim 1 , preferably with a molar ratio catalyst/organics higher than 50 mol %.5. Process according to one of the to in which chlorine is added during the reaction claim 1 , preferably according to a molar ratio from 0.05 to 20 mole % claim 1 , preferably 1 to 17 mole % of chlorine per mole of starting compound.6. Process according to one of to claim 1 , wherein a gas is injected claim 1 , preferably an inert gas claim 1 , more preferably nitrogen or helium.7. Process according to the claim 6 , in which the flow of gas claim 6 , compared to the flow of the starting product lies between 0.5:1 and 5:1 claim 6 , advantageously claim 6 , between 1:1 and 3:1.8. Process according to one of the to claim 6 , in which the product of the reaction is withdrawn in the gaseous state.9. Process according to one of to claim 6 , in which the temperature of the reaction ranges between 30 ...

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Номер записи: 82
21-04-2016 дата публикации

Process for producing highly pure chlorinated alkane

Номер: US20160107958A1
Автор: Karel FILAS, Pavel Kubicek, Petr Sladek, Zdenek ONDRUS
Принадлежит: Spolek Pro Chemickou A Hutni Vyrobu Narodni Podnik Unite

Disclosed is a process for producing highly pure chlorinated alkane in which a chlorinated alkene is contacted with chlorine in a reaction zone to produce a reaction mixture containing the chlorinated alkane and the chlorinated alkene, and extracting a portion of the reaction mixture from the reaction zone, wherein the molar ratio of chlorinated alkane:chlorinated alkene in the reaction mixture extracted from the reaction zone does not exceed 95:5.

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Номер записи: 83
21-04-2016 дата публикации

ELECTROCHEMICAL HYDROXIDE SYSTEMS AND METHODS USING METAL OXIDATION

Номер: US20160108529A1
Автор: Albrecht Thomas A., Boggs Bryan, GILLIAM RYAN J., Gorer Alexander, Kostowskyj Michael, Leclerc Margarete K., Self Kyle, Solas Dennis W., Weiss Michael Joseph
Принадлежит:

There are provided methods and systems for an electrochemical cell including an anode and a cathode where the anode is contacted with a metal ion that converts the metal ion from a lower oxidation state to a higher oxidation state. The metal ion in the higher oxidation state is reacted with hydrogen gas, an unsaturated hydrocarbon, and/or a saturated hydrocarbon to form products. 128-. (canceled)29. A method , comprising:contacting an anode with an anode electrolyte in an electrochemical cell wherein the anode electrolyte comprises saltwater and metal halide;contacting a cathode with a cathode electrolyte in the electrochemical cell;applying a voltage to the anode and the cathode and oxidizing the metal halide from a lower oxidation state to a higher oxidation state at the anode; andhalogenating an unsaturated hydrocarbon or a saturated hydrocarbon with the anode electrolyte comprising the metal halide in the higher oxidation state in an aqueous medium to result in a halohydrocarbon and the metal halide in the lower oxidation state.301. The method of claim , further comprising forming an alkali , water , or hydrogen gas at the cathode.311. The method of claim , wherein the cathode electrolyte comprises water and the cathode is an oxygen depolarizing cathode that reduces oxygen and water to hydroxide ions; the cathode electrolyte comprises water and the cathode is a hydrogen gas producing cathode that reduces water to hydrogen gas and hydroxide ions; the cathode electrolyte comprises hydrochloric acid and the cathode is a hydrogen gas producing cathode that reduces hydrochloric acid to hydrogen gas; or the cathode electrolyte comprises hydrochloric acid and the cathode is an oxygen depolarizing cathode that reacts hydrochloric acid and oxygen gas to form water.321. The method of claim , wherein metal ion in the metal halide is selected from the group consisting of iron , chromium , copper , tin , silver , cobalt , uranium , lead , mercury , vanadium , bismuth , ...

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Номер записи: 84
23-04-2015 дата публикации

Process For Producing Chlorinated Hydrocarbons In The Presence Of A Polyvalent Bismuth Compound

Номер: US20150112104A1
Автор: Sherwood Scott A.
Принадлежит:

The preparation of chlorinated hydrocarbons by reacting a chlorinated alkane substrate, such as 1,1,1,3-tetrachloropropane, with a source of chlorine, such as chlorine (Cl), in the presence of a polyvalent bismuth compound, such as triphenyl bismuth and/or triphenyl bismuth dichloride, is described. With the method of the present invention, the chlorinated alkane product has covalently bonded thereto at least one more chlorine group than the chlorinated alkane substrate, and the chlorinated alkane substrate and the chlorinated alkane product each have a carbon backbone structure that is in each case the same. 1. A method of preparing a chlorinated alkane product comprising ,reacting a chlorinated alkane substrate with a source of chlorine in the presence a polyvalent bismuth compound, thereby forming a product comprising said chlorinated alkane product,wherein said chlorinated alkane product has covalently bonded thereto at least one more chlorine group than said chlorinated alkane substrate, andsaid chlorinated alkane substrate and said chlorinated alkane product each have a carbon backbone structure that is in each case the same.2. The method of claim 1 , wherein said source of chlorine is selected from chlorine (Cl) claim 1 , sulfuryl chloride claim 1 , and combinations thereof.3. The method of claim 1 , wherein said polyvalent bismuth compound is selected from the group consisting of a pentavalent bismuth compound claim 1 , a trivalent bismuth compound claim 1 , and combinations thereof.6. The method of claim 5 , wherein the sum of c and d is 3 claim 5 , c is from 1 to 3 claim 5 , and d is from 0 to 2.7. The method of claim 3 , whereinsaid pentavalent bismuth compound comprises triphenyl bismuth dichloride, andsaid trivalent bismuth compound comprises triphenyl bismuth.8. The method of claim 1 , wherein said polyvalent bismuth compound is supported on a solid support.9. The method of claim 8 , wherein said solid support is selected from the group consisting of ...

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Номер записи: 85
09-04-2020 дата публикации

METHODS OF MAKING CHLORINATED HYDROCARBONS

Номер: US20200109097A1
Автор: Branam Lloyd B., Dawkins John Lee, Klausmeyer Rodney L., Rohrback Daniel D., Strathe James S., Wilson Richard L.
Принадлежит:

Methods for the manufacture of 1,1,1,2,3-pentachloropropane from 1,1,1,3-tetrachloropropane and chlorine are disclosed. Improved methods are provided for the manufacture of 1,1,2,3-tetrachloropropene from 1,1,1,2,3-pentachloropropane. Methods are also disclosed for the manufacture of 1,1,2,3-tetrachloropropene from 1,1,1,3-tetrachloropropane and chlorine and for the manufacture of 1,1,2,3-tetrachloropropene from carbon tetrachloride, ethylene, and chlorine. 1. A process for producing 1 ,1 ,1 ,2 ,3-pentachloropropane , the process comprising:i. combining 1,1,1,3-tetrachloropropane with ferric chloride to thereby dehydrochlorinate the 1,1,1,3 tetrachloropropane to one or more trichloropropenes; andii. reacting the one or more trichloropropenes with chlorine in the presence of ferric chloride to thereby produce 1,1,1,2,3-pentachloropropane.2. The process of claim 1 , where said step of combining 1 claim 1 ,1 claim 1 ,1 claim 1 ,3-tetrachloropropane and ferric chloride further includes combining carbon tetrachloride.3. The process of claim 2 , where said step of reacting the trichloropropenes with chlorine takes place in the presence of carbon tetrachloride.4. A process for producing 1 claim 2 ,1 claim 2 ,2 claim 2 ,3-tetrachloropropene claim 2 , the process comprising:i. combining 1,1,1,3-tetrachloropropane with ferric chloride to thereby dehydrochlorinate the 1,1,1,3 tetrachloropropane to one or more trichloropropenes; andii. reacting the one or more trichloropropenes with chlorine in the presence of ferric chloride to thereby produce 1,1,1,2,3-pentachloropropane;iii. optionally combining the 1,1,1,2,3-pentachloropropane with ferric chloride to form a mixture of 1,1,1,2,3-pentachloropropane and ferric chloride; andiv. heating the mixture of 1,1,1,2,3-pentachloropropane and ferric chloride to produce 1,1,2,3-tetrachloropropene.5. The process of claim 4 , wherein said step of heating takes place at about 120° C. to about 180° C.6. The process of claim 4 , wherein the ...

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Номер записи: 86
03-05-2018 дата публикации

PROCESSES FOR PRODUCING VERY HIGH PURITY 1,1,1,2,3- PENTACHLOROPROPANE

Номер: US20180118641A1
Автор: FILAS Karel, KUBICEK Pavel, ONDRUS Zdenek, SLADEK Petr
Принадлежит: SPOLEK PRO CHEMICKOU A HUTNI VYROBU A.S.

Disclosed is a process for preparing a highly pure 1,1,1,2,3-pentachloropropane product, comprising 1. A highly pure 1 ,1 ,1 ,2 ,3-pentachloropropane composition obtained by the process comprising:{'b': '1', 'i': 'a', '-) providing a reaction mixture comprising ethylene, carbon tetrachloride and a catalyst in a principal alkylation zone to produce 1,1,1,3-tetrachloropropane in the reaction mixture, and,'}{'b': 1', '1, 'i': b', 'a, '-) treating the reaction mixture obtained in step -) to obtain a 1,1,1,3-tetrachloropropane feedstock;'}{'b': '2', 'i': 'a', '-) contacting the 1,1,1,3-tetrachloropropane feedstock with a metallic catalyst in a dehydrochlorination zone to produce a reaction mixture comprising 1,1,1,3-tetrachloropropane and 1,1,3-trichloropropene, and'}{'b': 2', '2, 'i': b', 'a, '-) treating the reaction mixture obtained in step -) to obtain a 1,1,3-trichloropropene feedstock;'}{'b': '3', 'i': 'a', '-) contacting the 1,1,3-trichloropropene feedstock with chlorine in a reaction zone to produce a reaction mixture containing 1,1,1,2,3-pentachloropropane and 1,1,3-trichloropropene, the reaction zone being different from the dehydrochlorination zone, and'}{'b': 3', '3, 'i': b', 'a, '-) treating the reaction mixture obtained in step -) to obtain the highly pure 1,1,1,2,3-pentachloropropane product'}{'b': '1', 'claim-text': 95:5 where the principal alkylation zone is in continuous operation, or', '99:1 where the principal alkylation zone is in batchwise operation,, 'wherein, in step , the concentration of the 1,1,1,3-tetrachloropropane in the reaction mixture in the principal alkylation zone is maintained at a level such that the molar ratio of 1,1,1,3-tetrachloropropane:carbon tetrachloride in the reaction mixture does not exceedwherein said composition comprises:1,1,1,2,3-pentachloropropane in amounts of at least 99.5%, and one or more of the following:oxygenated organic compounds in amounts of less than 500 ppm,isomers of 1,1,1,2,3-pentachloropropane in ...

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Номер записи: 87
03-05-2018 дата публикации

Process for the preparation of vinyl chloride

Номер: US20180118643A1
Автор: Andrew George Hiles, Joost Johannes SMIT, Nicholas Andrew Carthey
Принадлежит: JOHNSON MATTHEY PLC

A process for the production of vinyl chloride comprises the step of passing a feed stream comprising ethylene dichloride (EDC) over a catalyst system comprising a dehydrochlorination catalyst and a hydrochlorination catalyst at a temperature, which may be in the range 150-350° C., sufficient to effect dehydrochlorination of the ethylene dichloride to produce vinyl chloride.

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Номер записи: 88
25-04-2019 дата публикации

SYSTEMS AND METHODS USING LANTHANIDE HALIDE

Номер: US20190119186A1
Автор: Albrecht Thomas A., Cole Emily A., GILLIAM RYAN J., Kostowskyj Michael, Leclerc Margarete K., Self Kyle, Weiss Michael J.
Принадлежит:

There are provided methods and systems related to use of one or more lanthanide halides in an electrochemical oxidation of metal halide in anolyte where the metal ion is oxidized from lower oxidation state to higher oxidation state at an anode; and then further use of the one or more lanthanide halides and the metal halide with the metal ion in the higher oxidation state in a halogenation reaction of an unsaturated hydrocarbon or a saturated hydrocarbon to form one or more products comprising halohydrocarbon. 1. A method , comprising:contacting an anode with an anode electrolyte wherein the anode electrolyte comprises metal halide, one or more lanthanide halides, and water;contacting cathode with a cathode electrolyte;applying voltage to the anode and the cathode and oxidizing the metal halide from a lower oxidation state to a higher oxidation state at the anode; andreacting an unsaturated hydrocarbon or a saturated hydrocarbon with the metal halide in the higher oxidation state and the one or more lanthanide halides in the anode electrolyte, to result in one or more products comprising halohydrocarbon.2. The method of claim 1 , wherein lanthanide in the lanthanide halide is selected from the group consisting of lanthanum claim 1 , cerium claim 1 , praseodymium claim 1 , neodymium claim 1 , promethium claim 1 , samarium claim 1 , europium claim 1 , gadolinium claim 1 , terbium claim 1 , dysprosium claim 1 , holmium claim 1 , erbium claim 1 , thulium claim 1 , ytterbium claim 1 , lutetium claim 1 , and combinations thereof.3. The method of claim 1 , wherein the lanthanide halide is cerium halide and/or lanthanum halide.4. The method of claim 3 , wherein the cerium halide is CeCl.7HO.5. The method of claim 1 , wherein the one or more lanthanide halides are in concentration range of between about 0.4-10 mol %.6. The method of claim 1 , wherein the anode electrolyte further comprises salt.7. The method of claim 1 , wherein the anode electrolyte comprises the metal ...

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Номер записи: 89
24-07-2014 дата публикации

Process For Producing Chlorinated Hydrocarbons

Номер: US20140206911A1
Автор: Lester Stephen Robert, Sherwood Scott A.
Принадлежит: Axiall Ohio, Inc.

The preparation of chlorinated hydrocarbons, such as pentachloropropanes, such as 1,1,1,2,3-pentachloropropane, from tetrachloropropanes, such as 1,1,1,3-tetrachloropropane, in the presence of a polyvalent antimony compound that includes a pentavalent antimony compound, such as antimony pentachloride, is described. Also described are methods for preparing optionally chlorinated alkenes, such as, tetrachloropropenes, from chlorinated alkanes, such as pentachloropropanes, in the presence of ferric chloride and a polyvalent antimony compound that includes a pentavalent antimony compound. 1. A method of preparing 1 ,1 ,1 ,2 ,3-pentachloropropane comprising ,reacting 1,1,1,3-tetrachloropropane with a source of chlorine in the presence of a polyvalent antimony compound comprising a pentavalent antimony compound, thereby forming a product comprising 1,1,1,2,3-pentachloropropane.2. The method of claim 1 , wherein said source of chlorine is selected from chlorine (Cl) claim 1 , sulfuryl chloride claim 1 , and combinations thereof.4. The method of further comprising claim 3 , forming at least a portion of said pentavalent antimony compound from a precursor of said pentavalent antimony compound.5. The method of claim 4 , wherein said precursor of said pentavalent antimony compound comprises said trivalent antimony compound represented by Formula (II).6. The method of claim 5 , wherein said precursor of said pentavalent antimony compound is selected from the group consisting of antimony trichloride claim 5 , trialkyl antimony claim 5 , triaryl antimony claim 5 , and combinations of two or more thereof.7. The method of claim 6 , wherein said precursor of said pentavalent antimony compound is selected from the group consisting of antimony trichloride claim 6 , triphenyl antimony claim 6 , and combinations thereof.8. The method of claim 1 , wherein said polyvalent antimony compound is supported on a solid support.9. The method of claim 8 , wherein said solid support is selected ...

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Номер записи: 90
10-05-2018 дата публикации

PROCESS FOR THE MANUFACTURE OF 1,1,1,3,3-PENTACHLOROPROPANE

Номер: US20180127337A1
Автор: Shankland Ian, Tung Hsueh Sung
Принадлежит:

A process for the manufacture of haloalkanes, or more particularly to a process for the manufacture of 1,1,1,3,3-pentachloropropane (HCC-240fa) and/or 1,1,1,3-tetrachloropropane (HCC-250fb). The process includes (a) mixing a catalyst, co-catalyst and a haloalkane starting material under conditions suitable to produce a homogeneous mixture; (b) reacting the homogeneous mixture with a haloalkene and/or alkene starting material under conditions suitable to produce a haloalkane product stream; and (c) recovering a haloalkane product from said product stream. 1. A process for preparing a haloalkane comprising:(a) mixing a catalyst, co-catalyst and a haloalkane starting material under conditions suitable to produce a homogeneous mixture;(b) reacting the homogeneous mixture with a haloalkene starting material, an alkene starting material or both a haloalkene starting material and an alkene starting material under conditions suitable to produce a haloalkane product stream; and(c) recovering a haloalkane product from said product stream.2. The process of wherein said mixture comprises a substantially solid-free mixture.3. The process of wherein said haloalkane product comprises 1 claim 1 ,1 claim 1 ,1 claim 1 ,3 claim 1 ,3-pentachloropropane claim 1 , 1 claim 1 ,1 claim 1 ,1 claim 1 ,3 claim 1 ,3-pentachlorobutane claim 1 , 1 claim 1 ,1 claim 1 ,1 claim 1 ,3-tetrachloropropane or a combination thereof.4. The process of wherein said haloalkane starting material comprises carbon tetrachloride.5. The process of wherein said haloalkene starting material comprises vinyl chloride claim 1 , 2-chloro-1-propene or a combination thereof.6. The process of wherein said alkene starting material comprises ethylene.7. The process of wherein said catalyst comprises CuCl and said co-catalyst comprises CHCN claim 1 , t-Bu-NH claim 1 , n-Bu-NH claim 1 , ethanol-amine claim 1 , pyridine claim 1 , sec-Bu-NH claim 1 , benzyl-NH claim 1 , n-BuN or combinations thereof.8. The process of wherein ...

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Номер записи: 91
10-05-2018 дата публикации

HYDROFLUORINATION OF 1233xf TO 244bb BY SbF5

Номер: US20180127338A1
Автор: Karl Krause, Mario Joseph Nappa, Xuehui Sun
Принадлежит: Chemours Co FC LLC

The disclosure relates to a method for hydrofluorination of an olefin of the formula: RCX=CYZ to produce a hydrofluoroalkane of formula RCXFCHYZ or RCHXCFYZ, wherein X, Y, and Z are independently the same or different and are selected from the group consisting of H, F, Cl, Br, and C 1 -C 6 alkyl which is partially or fully substituted with chloro or fluoro or bromo; and R is a C 1 -C 6 alkyl which is unsubstituted or substituted with chloro or fluoro or bromo, comprising reacting the olefin with HF in the liquid-phase, in the presence of SbF 5 , at a temperature ranging from about −30° C. to about 65° C.

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Номер записи: 92
10-05-2018 дата публикации

METATHESIS CATALYSTS AND METHODS THEREOF

Номер: US20180127447A1
Автор: Hoveyda Amir H., Koh Ming Joo, Schrock Richard Royce, ZHANG Hanmo
Принадлежит:

The present application provides, among other things, compounds and methods for metathesis reactions. In some embodiments, the present disclosure provides methods for preparing alkenyl halide with regioselectivity and/or stereoselectivity. In some embodiments, the present disclosure provides methods for preparing alkenyl halide with regioselectivity and Z-selectivity. In some embodiments, the present disclosure provides methods for preparing alkenyl halide with regioselectivity and E-selectivity. In some embodiments, provided technologies are particularly useful for preparing alkenyl fluorides. In some embodiments, a provided compound useful for metathesis reactions has the structure of formula II-a. In some embodiments, a provided compound useful for metathesis reactions has the structure of formula II-b. 120-. (canceled)22. The compound of claim 21 , wherein M is Mo. This application is a divisional application of U.S. patent application Ser. No. 14/933,741, filed Nov. 5, 2015, which claims priority to U.S. Provisional Application No. 62/075,315, filed Nov. 5, 2014, the entirety of each of which is incorporated herein by reference.This invention was made with government support under Grant No. GM59426 awarded by the National Institute of Health and Grant No. CHE-1362763 awarded by the National Science Foundation. The U.S. government has certain rights in the invention.The present invention generally relates to metathesis reactions.Catalytic metathesis has transformed chemical synthesis and offers exceptionally efficient pathways for the synthesis of many commercially important chemicals including biologically active molecules, oleochemicals, renewables, fine chemicals, and polymeric materials. There remains an unmet need for improved methods and catalysts for metathesis reactions, for example, in terms of better catalyst stability and/or activity, efficiency and stereoselectivity.Among other things, the present disclosure recognizes that it is particularly ...

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Номер записи: 93
02-05-2019 дата публикации

Manufacturing method of 1,2-dichlorohexafluorocyclopentene

Номер: US20190127300A1
Автор: Dongpeng LIU, Hengdao Quan, Xiaomeng Zhou, Xiaoqing JIA
Принадлежит: Beijing Yuji Science and Technology Co Ltd, Zeon Corp

Disclosed is a manufacturing method of 1,2-dichlorohexafluorocyclopentene. The first reaction uses dicyclopentadiene as a starting material and nitrogen gas or another inert gas as a diluting agent in a gas-phase thermal cracking reaction to obtain cyclopentadiene. The second reaction uses cyclopentadiene as a starting material in a liquid phase chlorination reaction with chlorine gas to obtain 1,2,3,4-tetrachlorocyclopentane. The third reaction uses 1,2,3,4-tetrachlorocyclopentane as a starting material in a gas-phase chlorination and fluorination reaction with hydrogen fluoride and chlorine gas in the presence of a chromium-based catalyst to obtain 1,2-dichlorohexafluorocyclopentene. The method uses easily acquired starting material and a stable fluorination catalyst, provides a high yield for a target product, and is applicable for large-scale continuous gas-phase production of 1,2-dichlorohexafluorocyclopentene.

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Номер записи: 94
02-05-2019 дата публикации

PROCESS FOR THE MANUFACTURE OF 2,3,3,3-TETRAFLUOROPROPENE

Номер: US20190127303A1
Автор: Deur-Bert Dominique, FILAS Karel, KUBICEK Pavel, ONDRUS Zdenek, SLADEK Petr, Wendlinger Laurent
Принадлежит: Arkema France

The present invention provides a process of manufacture of 2,3,3,3-tetrafluoropropene by fluorination of very high purity 1,1,1,2,3-pentachloropropane (HCC-240db) into product 2,3,3,3-tetrafluoropropene (HFO-1234yf), the process comprising the following steps: —step 3 of chlorination of 1,1,3-trichloropropene to produce 1,1,1,2,3-pentachloropropane, comprising: 3-a) contacting the 1,1,3-trichloropropene feedstock with chlorine in a reaction zone to produce a reaction mixture containing 1,1,1,2,3-pentachloropropane and 1,1,3-trichloropropene, the reaction zone being different from the dehydrochlorination zone, and 3-b) treating the reaction mixture obtained in step 3-a) to obtain a 1,1,1,2,3-pentachloropropane (HCC-240db) feedstock; —step 4 of producing 2,3,3,3-tetrafluoropropene (HFO-1234yf), comprising: 4-a) reacting the 1,1,1,2,3-pentachloropropane (HCC-240db) feedstock with HF in the presence or absence of catalyst to produce a reaction mixture comprising at least one compound chosen from HCI, HF, 1,1,1,2,2-pentafluoropropane (HFC-245cb), 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf) and 2,3,3,3-tetrafluoropropene (HFO-1234yf). 1. A process for preparing a highly pure 2 ,3 ,3 ,3-tetrafluoropropene product comprising the following steps: 1-a) providing a reaction mixture comprising ethylene, carbon tetrachloride and a catalyst in a principal alkylation zone to produce 1,1,1,3-tetrachloropropane in the reaction mixture, and', '1-b) treating the reaction mixture obtained in step 1-a) to obtain a 1,1,1,3-tetrachloropropane feedstock;, 'optionally a step 1 of telomerisation to produce 1,1,1,3-tetrachloropropane feedstock, comprising 2-a) contacting the 1,1,1,3-tetrachloropropane feedstock with a catalyst in a dehydrochlorination zone to produce a reaction mixture comprising 1,1,1,3-tetrachloropropane and 1,1,3-trichloropropene, and', '2-b) treating the reaction mixture obtained in step 2-a) to obtain a 1,1,3-trichloropropene feedstock;, 'optionally a step 2 of ...

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Номер записи: 95
02-05-2019 дата публикации

C-HALOGEN BOND FORMATION

Номер: US20190127311A1
Автор: Groves John T., Liu Wei
Принадлежит: THE TRUSTEES OF PRINCETON UNIVERSITY

Methods of halogenating a carbon containing compound having an sp3 C—H bond are provided. Methods of fluorinating a carbon containing compound comprising halogenation with Cl or Br followed by nucleophilic substitution with F are provided. Methods of direct oxidative C—H fluorination of a carbon containing compound having an sp3 C—H bond are provided. The halogenated products of the methods are provided. 1. A composition comprising at least two or more of a carbon containing compound having an sp3 C—H bond hydrogen , a halogenating agent , a halogenating catalyst , or a phase transfer catalyst.2. The composition of claim 1 , wherein the carbon containing compound includes a compound selected from the group consisting of neopentane; toluene; cyclohexane; norcarane; trans-decalin; 5α-cholestane; sclareolide; 1 claim 1 , 3 claim 1 , 5(10)-estratrien-17-one; (1R claim 1 ,4aS claim 1 , 8aS)-octahydro-5 claim 1 ,5 claim 1 ,8a-trimethyl-1-(3-oxobutyl)-naphtalenone; (1R claim 1 , 4S claim 1 , 6S claim 1 , 10S)-4 claim 1 , 12 claim 1 , 12-trimethyl-tricyclo[8.2.0.04 claim 1 ,6]dodecan-9-one; levomethorphan; lupine; 20-methyl-5alpha(H)-pregnane; isolongifolanone; caryophyllene acetate; N-acetyl-gabapentin methyl ester; acetyl-amantidine; phthalimido-amantadine; methyloctanoate; saturated fatty acid esters; N-acetyl-Lyrica methyl ester; artemisinin claim 1 , adapalene; finasteride; N-acetyl-methylphenidate; mecamylamine; N-acetyl-mecamylamine; N-acetyl-memantine; phthalimidi-memantine; N-acetyl-enanapril precursor methyl ester; progesterone; artemisinin; adapalene; dopamine derivative; pregabalin; cholestane; finasteride; methylphenidate derivative; mecamylamine; gabapentin; memantine derivative; gabapentin; rimantadine derivative; isoleucine derivative; leucine derivative; valine derivative; pregesterone; tramadol; enalapril precursor; (1R claim 1 , 4aS claim 1 , 8aS)-5 claim 1 , 5 claim 1 , 8a-trimethyl-1-(3-oxobutyl)octahydronaphthalen-2(1H)-one; phenylalanine; donepezil ...

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Номер записи: 96
19-05-2016 дата публикации

SUPPORTED, BIMETALLIC NANOPARTICLES FOR SELECTIVE CATALYSIS

Номер: US20160136632A1
Автор: "OConnell Kerry", Monnier John, Regalbuto John
Принадлежит:

Supported, bimetallic catalyst systems are provided. The supported, bimetallic catalyst system can include a support defining a surface; a core metal positioned on the surface of the support; and a shell metal positioned on the core metal to form a core-shell particle on the surface of the support. The core metal has a surface free energy that is higher than a surface free energy of the shell metal. Methods are also provided for the formation of such supported, bimetallic catalyst systems, as well as the use of such supported, bimetallic catalyst systems in chemical processes.

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Номер записи: 97
03-06-2021 дата публикации

METHOD FOR DEHYDROCHLORINATION OF HCFC-244BB TO MANUFACTURE HFO-l234YF

Номер: US20210163383A1
Автор: Carlos NAVAR, Haiyou Wang, Haluk Kopkalli, Yuon Chiu
Принадлежит: Honeywell International Inc

A process for making 2,3,3,3-tetrafluoropropene (HFO-1234yf) includes providing a composition including 2-chloro-1,1,1,2-tetrafluoropropane (HCFC-244bb) to a reactor including a heater surface at a surface temperature greater than about 850° F. (454° C.), and then bringing the composition into contact with the heater surface for a contact time of less than 10 seconds to dehydrochlorinate a portion of the HCFC-244bb to make HFO-1234yf.

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Номер записи: 98
03-06-2021 дата публикации

METHOD FOR PREPARING A POLYFLUORINATED COMPOUND

Номер: US20210163408A1
Автор: PITTS Cody Ross, SANTSCHI Nico, TOGNI Antonio
Принадлежит: ETH Zurich

A process for preparing a polyfluorinated compound of formula Ar—R(I), wherein Ar—R(I) is an aromatic ring system 3. The process according to claim 1 , wherein the process is carried out in the presence of a catalytic amount of a Brønsted or Lewis acid.4. The process according to claim 3 , wherein the catalytic amount of the Brønsted or Lewis acid is between 5 mol % and 15 mol %.5. The process according to claim 1 , wherein the molar ratio of TCICA:MF is between 1:1 and 1:10.6. The process according to for preparing a polyfluorinated compound of formula Ar—R(I).7. The process according to claim 1 , wherein Ris SFCl or SF.8. The process according to claim 1 , wherein the aromatic ring system is a substituted or unsubstituted phenyl ring and Rto Rhave the same definition as in .9. The process according to claim 1 , wherein at least one of X claim 1 , X claim 1 , X claim 1 , Xand Xis nitrogen.10. The process according to claim 8 , wherein exactly two of X claim 8 , X claim 8 , X claim 8 , Xand Xare nitrogen.11. The process according to claim 1 , wherein at least one of R claim 1 , R claim 1 , R claim 1 , Rand Ris fluoro claim 1 , chloro claim 1 , bromo claim 1 , methoxycarbonyl claim 1 , ethoxycarbonyl or acetoxy.12. The process according to claim 1 , wherein the starting material is a diaryl dichalcogenide or a diheteroaryl dichalcogenide selected from the group consisting of ArS claim 1 , ArTeand ArSe.13. The process according to claim 1 , wherein the starting material is Ar—SCFor ArI. The present invention relates to a method for preparing polyfluorinated compounds.Aromatic ring systems comprising functional groups with polyfluorinated heteroatoms have very promising applications in contemporary medicinal chemistry, agrochemistry, as chemical building blocks, as reagents and for advanced materials, such as liquid crystals.Historically, synthetic fluorine chemistry has often relied on hazardous reagents and specialized apparatuses. For example, in the case of aryl ...

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Номер записи: 99
03-06-2021 дата публикации

COMPOUND OF 3,3,3',3'-TETRAMETHYL-1,1'-SPIROBIINDANE-BASED PHOSPHINE LIGAND, AND PREPARATION METHOD THEREOF

Номер: US20210163514A1
Автор: CHANG Shirui, Lin Xufeng, Wang Lei, YAO Linxi
Принадлежит:

The present application discloses a 3,3,3′,3′-tetramethyl-1,1′-spirobiindane-based phosphine ligand, an intermediate, a preparation method and uses thereof. The compound of phosphine ligand is a compound having a structure represented by formula I or formula II, or an enantiomer, a raceme, or diastereomer thereof. The phosphine ligand can be prepared via a preparation scheme in which the cheap and easily available 6,6′-dihydroxyl-3,3,3′,3′-tetramethyl-1,1′-spirobiindane is used as a raw material and the compound represented by formula III serves as the key intermediate. The new phosphine ligand developed by the present application can be used in catalytic organic reaction, in particular as a chiral phosphine ligand that is widely used in many asymmetric catalytic reactions including asymmetric hydrogenation and asymmetric allyl alkylation, and thus it has economic practicability and industrial application prospect. 4. The compound represented by formula I or formula II according to claim 1 , wherein Ris selected from the group consisting of phenyl claim 1 , benzyl claim 1 , pentafluorophenyl claim 1 , 4-methylphenyl claim 1 , 4-methoxyphenyl claim 1 , 4-trifluoromethyl-phenyl claim 1 , 3 claim 1 ,5-dimethylphenyl claim 1 , 3 claim 1 ,5-difluorophenyl claim 1 , 3 claim 1 ,5-dimethoxyphenyl claim 1 , 3 claim 1 ,5-di-tert-butylphenyl claim 1 , 3 claim 1 ,4 claim 1 ,5-trimethoxyphenyl claim 1 , 3 claim 1 ,5-dimethyl-4-methoxy-phenyl claim 1 , 3 claim 1 ,5-di-tert-butyl-4-methoxy-phenyl claim 1 , 3 claim 1 ,5-dimethyl-4-methoxy-phenyl claim 1 , and 3 claim 1 ,5-bis(trifluoromethyl)-phenyl.10. A use of the 3 claim 1 ,3 claim 1 ,3′ claim 1 ,3′-tetramethyl-1 claim 1 ,1′-spirobiindane-based phosphine ligand according to claim 1 , wherein the phosphine ligand is complexed with a metal salt of iron claim 1 , osmium claim 1 , gold claim 1 , silver claim 1 , copper claim 1 , platinum claim 1 , rhodium claim 1 , ruthenium claim 1 , iridium claim 1 , nickel claim 1 , molybdenum ...

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Номер записи: 100