СПОСОБ ПОЛУЧЕНИЯ АЛКОКСИГИДРОКСИБЕНЗАЛЬДЕГИДА, В СУЩЕСТВЕННОЙ СТЕПЕНИ СВОБОДНОГО ОТ АЛКИЛАЛКОКСИГИДРОКСИБЕНЗАЛЬДЕГИДА

1. Способ получения по меньшей мере одного алкоксигидроксибензальдегида ("АНВА") из по меньшей мере одного гидроксифенола ("HP"), отличающийся тем, что он включает стадию образования по меньшей мере одного алкоксифенола ("АР") и алкилалкоксифенола ("ААР") и стадию отделения (S) АР от ААР, причем стадию отделения (S) осуществляют перед получением АНВА.2. Способ получения по предыдущему пункту, отличающийся тем, что алкоксигидроксибензальдегид (АНВА) представляет собой ванилин (VA), этилванилин (EVA) или любую их смесь.3. Способ получения по п. 2, отличающийся тем, что он включает получение VA и/или EVA, в существенной степени свободного от 5-метилванилина ("MEVA") и 3-этокси-5-этил-4-гидроксибензальдегида ("EEVA"), из гваякола (GA) и/или гветола (GE), причем способ включает получение смеси (М), содержащей GA и/или GE, в присутствии примеси 6-метилгваякола ("MEGA") и/или 6-этилгветола (2-этокси-6-этилфенола, сокращенно обозначаемого "EGE") и стадию отделения (S) GA и/или GE от MEGA и/или EGE, причем стадию отделения (S) осуществляют перед получением VA и/или EVA.4. Способ по любому из предыдущих пунктов, отличающийся тем, что соединение АНВА получают присоединением альдегидной группы к соединению АР конденсацией с глиоксиловой кислотой с последующим окислением образующегося соединения, а стадию отделения (S) осуществляют перед окислением с образованием соединения АНВА.5. Способ по п. 4, отличающийся тем, что стадию отделения осуществляют перед взаимодействием АР с глиоксиловой кислотой.6. Способ по любому из пп. 1-3, отличающийся тем, что стадию отделения реализуют, осуществляя одну или несколько стадий перегонки.7. Способ по любому из пп. 1-3, отличающийся тем, что он включает подачу потока или фракции (Е1) смеси М, содержащей гваякол (GA) и/или гветол (GE), обозначенные РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C07C 41/42 (13) 2015 106 362 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ ...

Katalysator fuer die Dampfphasenoxydation organischer Verbindungen

4-hydroxy-2,4,6-trimethyl-2,5-cyclohexadiene -1-one prepn - - by gaseous oxidn of 2,4,6-trimethylphenol

In the Title process the phenol is oxidised with molecular O2 or mixts contg. O2 pref. under a partial press of >=0.1 kg/cm2 and =1000 kg/cm, at -20 to 200 degrees C opt. in the presence of a liquid e.g. water or an org. solvent and water contg. a basic substance and opt. in the presence of a Co-complex. The product which is prepd. in a one stage process is a starting material for drugs dyes and ind. chemicals.

Oxidation of alcohols and amines

An alcohol or amine is oxidised in the liquid phase by contacting it with a ruthenium-containing catalyst in the presence of an oxygen-containing gas at 0 DEG -250 DEG C. The catalyst may be ruthenium, its oxides (e.g. the dioxide or tetroxide), salts (e.g. barium ruthenite, ruthenates such as those of Mg, Sr, Ca, Ag, Ba, K and Na, perruthenates, such as sodium and potassium perruthenate), halides (e.g. the trichloride, the tetrachloride hydrate and the pentafluoride), sulphides (e.g. the disulphide) and chloro-salts (e.g. potassium chloroperruthenate). A carrier for the catalyst may be used. In general, primary alcohols are oxidised to aldehydes or acids, secondary alcohols to ketones, and p primary amines, in aqueous solution, to aldehydes, acids or nitro and/or nitroso compounds. In examples (1) cyclohexanol is oxidised; (2) benzyl alcohol is oxidised to benzaldehyde; (3) hexamethylene diamine is oxidised to an aldehydic compound; (4) butylamine is oxidised to butyraldehyde and butyric ...

Process preparing aromatic Hydroxy and akoxy Aldehydes

A process for preparing an aromatic aldehyde of the general formula ArCHO, wherein Ar represents a phenyl group that is substituted by one or more hydroxy and/or lower (C1-6) alkoxy groups, wherein a substituted glycolic acid of the general formula ArCHOH.COOH is oxidized by air and/or oxygen at a temperature not exceeding 100 DEG C and a pressure of from 1 to 10 atmospheres in the presence of a catalyst comprising an organic or inorganic copper compound, optionally in admixture with an organic or inorganic iron compound.

PROCESS FOR RECOVERING PURIFIED 4-HYDROXY-2,4,6-TRIMETHYL-2,5- CYCLOHEXADIEN-1-ON

... 1463706 Recovering purified 4 hydroxy-2,4,6- trimethyl - 2,5, - cyclohexadien - 1 - on TEIJIN Ltd 2 May 1974 [7 May 1973] 19333/74 Heading C2C A process for recovering purified 4 hydroxy- 2,4,6 - trimethyl - 2,5 - cyclohexadien - 1 - on comprises distilling crude 4-hydroxy-2,4,6-trimethyl - 2,5 - cyclohexadien - 1 - on and recovering the purified 4-hydroxy-2,4,6-trimethyl - 2,5 - cyclohexadien - 1 - on. The distillation is preferably carried out at 40‹ to 250‹ C. In another embodiment of the invention purified 4 - hydroxy - 2,4,6 - trimethyl - 2,5- cyclohexadien - 1 - on (TMCH) is obtained by distilling crude TMCH having a pH of 4 to 11À5, the pH value being measured on a solution obtained by dissolving 4 parts by weight of crude TMCH in an aqueous methanol solution consisting of 10 parts by weight of methanol and 3 parts by weight of water.

Cataltic oxidation of organic compounds

The production of quinones by partial oxidation of appropriate starting material requires severe conditions of high temperature and pressure over a period of several hours in order to obtain a commercially useful yield. The partial oxidation of organic compounds for example to produce quinones, can be conducted under mild conditions in a relatively short time by using as a catalyst a compound of the kind described in British Patent Specification No. 1436700, that is a composition which is the reaction product of a monosaccharide, oligosaccharide, polysaccharide, or other water soluble polymer containing hydroxyl groups with a permanganate and which is incorporated therein ions other than manganese of one or more elements from periods 4, 5 and/or 6 of the periodic table, thorium, boron and/or aluminium, but said one or more elements not including ions of inert gases, halogens and chalconides, said incorporated ions being derived from a salt of said element added to the reaction product.

Manufacture of 3-alkoxy-4-oxybenzaldehydes

... 3-Alkoxy-4-oxybenzaldehydes are prepared by treating the corresponding phenyl-trichloromethyl carbinol in an aqueous alkaline medium with an inorganic metal compound as an oxidizing agent. Oxidizing agents mentioned are salts of chromic acid and peroxides, in particular, barium peroxide. A mixture of these oxidizing agents may be used, and it is also preferred to include a small amount of copper, or a copper compound as a catalyst. The reaction may be conducted in a copper vessel to obtain the catalytic effect of copper. In examples: (1) guaiacyltrichloromethyl carbinol is oxidized by boiling with sodium bichromate in caustic soda solution in the presence of copper powder or a copper compound; (2) the process of example (1) is carried out at 150 DEG C. in a copper vessel. Specifications 219,676, [Class 2 (iii)], and 344,675 are referred to. The Specification as open to inspection under Sect. 91 comprised quite generally the use of any oxidizing agent active in alkaline medium. In addition ...

PROCESS FOR THE PREPARATION OF 4-HYDROXY -4- ALKYL - CYCLOHEXA-2,5-DIEN-1-ONE

CATALYST SYSTEM FOR AEOROBEN THE OXIDATION OF PRIMARY AND SECONDARY ALCOHOLS

OXIDATION CATALYST AND OXIDATION PROCEDURE

CATALYSTS FOR OXIDIZING AND AMMOXYDATION OF ALCOHOLS.

STABLE FREE ONES NITROXYLRADIKALE AS OXIDATION CATALYSTS AND OXIDATION PROCEDURES

Method for producing optionally substituted aliphatic, aromatic or heteraromaticaldehydes

PROCESS FOR PREPARATION OF 4-HYDROXY-2,4,6-TRIMETHYL-2,5-CYCLOHEXADIENE-1-ONE

PRODUCTION OF HYDROGEN PEROXIDE

PROCESS FOR THE PREPARATION OF 4-HYDROXY-4-ALKYL-2,5- CYCLOHEXANEDIEN-1-ONE

CARBOCATALYSTS FOR CHEMICAL TRANSFORMATIONS

The disclosure relates to catalytically active carbocatalysts, e.g., a graphene oxide or graphite oxide catalyst suitable for use in a variety of chemical transformations. In one embodiment, it relates to a method of catalyzing a chemical reaction of an organic molecule by reacting the organic molecule in the presence of a sufficient amount of graphene oxide or graphite oxide for a time and at a temperature sufficient to allow catalysis of a chemical reaction. According to other embodiments, the reaction may be an oxidation reaction, a hydration reaction, a dehydrogenation reaction, a condensation reaction, or a polymerization reaction. Some reactions may include auto-tandem reactions. The disclosure further provides reaction mixtures containing an organic molecule and graphene oxide or graphite oxide in an amount sufficient to catalyze a reaction of the organic molecule.

METHOD FOR PRODUCING CARBONYL COMPOUNDS

The invention relates to a method for producing carbonyl compounds of formula (I), in which R1 is a hydrogen atom or alkyl radical with between 1 and 3 C atoms; R2 is a hydrogen atom or a radical of formula (II), in which R3 is a hydrogen atom or, together with R4, an oxygen atom; R4 is the radical OR6 or, together with R3, an oxygen atom; R5 is a hydrogen atom, an alkyl radical with between 1 and 8 C atoms or a cyclohexyl or cyclopentyl radical; and R6 is an alkyl radical with between 1 and 4 C atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula -CH2-CHO or -CH2-CH2-O-CH2-CHO. According to said method, the carbonyl compounds are produced by gas phase oxidation of methanol or alcohols of formula (III), in which R1 and R5 have the meaning assigned above and R7 is a hydrogen atom or an OR8 radical, and R8 is a hydrogen atom, an alkyl radical with between 1 and 4 C atoms, a cyclohexyl or cyclopentyl radical or a radical of the formula -CH2-CH2-OH or -CH2-CH2-O-CH2-CH2-OH ...

Procédé et appareil pour la préparation de cétones par oxydation catalytique d'alcools secondaires.

2,5,5-trimethyl-2,6-heptadien-4-one prodn

... prodn. Organoleptic cpd. which is used in perfumery inds. of formula: (CH3)2C = CH-CO-C(CH3)2-CH=CH2, is produced by oxidising an alcohol of formula: (CH3)2C(OH)1-n--CH--CH(OH)n-C(CH3)2-CH=CH2 (where one of the broken lines indicates a double bond, and n is 0 or 1), with a salt or another O-contg. cpd. of a metal, e.g. Ag, Cr, Mn or Ni, or a ketone in the presence of an aluminium alkylate.

Verfahren zur Herstellung von Carbonylverbindungen

4-4- [...][...] DE [...] D'HYDROXY- [...] -2.5 ONES -1.

4-hydroxy-2,4,6-trimethyl-2,5-cyclohexadien-1-one purificn

... 4-hydroxy-2,4,6-trimethyl-2,5-cyclohexadien-1-one purificn by distn, pref from methanol-water soln ...

1,7-OCTADIEN-3-ON AND PROCEDURE FOR ITS PRODUCTION.

Process for the preparation of aromatic hydroxy- and alkoxyaldehydes

1,5-DIMETHYL-BICYCLO (of 3,2,1) OCTAN DERIVATIVES, PROCEDURES FOR YOUR PRODUCTION AND THESE CONNECTIONS ABSTENTION PARFUMMISCHUNGEN OR PARFUEMIERTE PRODUCTS.

PREPARING CARBONYL BY THE OXIDATION BY MOLECULAR OXYGEN.

A PROCESS FOR REVAMPING A PLANT FOR THE PRODUCTION OF CYCLOHEXANONE

Novel process for preparation of 4-hydroxy-2,4,6-trimethyl-2,5-cyclohexadiene-1-one

Process for the manufacture of alpha, beta-diketones, of alpha, beta-cétoaldéhydes and of acids alpha, beta-cétocarboxyliques

The 1,7-OCTADIENE-3-ONE AND SA PREPARATION

METHOD OF PREPARATION Of HYDROXY-4 ALCOYL-4 CYCLOHEXADIENE-2,5 ONE-1

IMPROVEMENTS IN OR RELATING TO THE PRODUCTION OF PROPYLENE OXIDE

Aldehyde or ketone prodn. from alcohol - by oxidn. with oxygen using copper or iron salt or complex and ruthenium tri:fluoro:acetate as catalyst

PROCESS FOR THE PREPARATION OF AROMATIC COMPOUND AND AROMATIC ALDEHYDE COMPOUND MANDELIC

METHOD OF PREPARATION Of an ALDEHYDE HYDROXYAROMATIQUE.

La présente invention a pour objet un procédé de préparation d'un aldéhyde hydroxyaromatique par oxydation d'un dérivé mandélique correspondant. Le procédé de préparation selon l'invention est caractérisé par le fait que l'on conduit l'oxydation du dérivé mandélique correspondant, en milieu basique et en présence d'un système catalytique comprenant au moins deux éléments métalliques.

METHOD OF PREPARATION OF KETONES ALPHA-HALOGENEES

La présente invention a pour objet un procédé de préparation de cétones alpha-halogénées à partir d'alcools secondaires alpha-halogénés. L'invention vise plus particulièrement la préparation de cétones alpha-trihalogénées à partir d'alcools secondaires alpha-trihalogénés. Le procédé de préparation d'une cétone alpha-halogénée selon l'invention est caractérisé par le fait qu'il consiste à oxyder en phase liquide, un alcool secondaire alpha-halogéné, à l'aide d'oxygène moléculaire ou un gaz en contenant, en présence d'un catalyseur à base d'un métal M1 choisi parmi les métaux du groupe 1b et 8 de la classification périodique des éléments et éventuellement d'un activateur.

A method for improving a reaction of controlled oxydation

Procédé pour améliorer une réaction d'oxydation ménagée entre au moins un réactif et de l'oxygène, selon lequel on fait réagir au moins un réactif avec de l'oxygène ou un gaz contenant de l'oxygène, formant un mélange réactionnel, en présence d'au moins un tiers gaz introduit dans ledit mélange réactionnel et choisi parmi le méthane, l'éthane, le gaz carbonique et l'hélium, puis, le cas échéant, on traite le produit résultant de la réaction d'oxydation en vue de l'obtention d'un produit final.

Nouveaux dérivés de 1,5-diméthylbicyclo(3,2,1)octane, préparation de ces composés et leur utilisation comme composé odoriférant.

DERIVES DE 1,5-DIMETHYLBICYCLO (3,2,1) OCTANE. ILS ONT LA FORMULE GENERALE: (CF DESSIN DANS BOPI) DANS LAQUELLE X ...

Process for preparing ruthenium-carrying alumina and process for oxidizing alcohol

A ruthenium-carrying alumina, which is prepared by suspending alumina in a solution containing trivalent ruthenium and adding a base to the suspension, is provided. This ruthenium-carrying alumina is useful as a catalyst for oxidizing alcohols by contacting the alcohols with molecular oxygen, and can be used for oxidizing the alcohols at a high conversion to produce ketones, aldehydes, carboxylic acids, etc. with good productivity.

Tetravalent manganese-carbon oxidation catalysts and methods of their preparation

Tetravalent manganese precipitated on porous carbon provide useful oxidation catalysts. They may be prepared by slurrying potassium permanganate and porous carbon under alkaline conditions.

Cu(II) and Zn(II)-phenoxy complexes, and radical complexes derived therefrom, their preparation and use

New 4-Coordinate copper (II) and zinc (II) complexes useful as catalysts for oxidation of alcohols and amines 4-Coordinate copper (II) and zinc (II) complexes which include one ligand L per metal atom, are new. 4-Coordinate copper (II) and zinc (II) complexes which include one phenoxy (or phenoxy radical) ligand L per metal atom. H2L is of formula (III): Q = S, O, N(R3), P(R4) or NH-Ph'-NH; R1, R2 = a radical-stabilizing residue, especially an alkyl group which has a tertiary C atom linked to the phenyl ring; R3, R4 = H or 1-6C alkyl; Ph = 1,2-phenylene Independent claims are included for: (A) The preparation method of complexes as described above, comprising: (a) reaction of a copper or zinc salt with a compound of formula (III), in a ratio of at least one mole of ligand per gram-atom of metal, in a dry, oxygen-free solvent (especially methanol or an ether), in the presence of at least 2 gram-equivalents of a nitrogen-containing base B per gram-atom of metal, at 20-100 degrees C, under ...

Catalysts for the oxidation and ammoxidation of alcohols

Catalysts useful for the oxidation and ammoxidation of alcohols contain the elements iron and molybdenum in a catalytically active oxidized state. These catalysts are especially useful for the production of hydrogen cyanide from methanol, ammonia, and an oxygen-containing gas.

Process for the production of carbonyl compounds

OBTAINING OF BICYCLOOCTANONE BY OXIDIZING BICYCLOOCTANOL WITH CATALYST

PROBLEM TO BE SOLVED: To provide a method for obtaining bicyclooctanone by selectively oxidizing bicyclooctanol using a heteropolymetalate anionic catalyst supported on active carbon. SOLUTION: Bicyclooctanol is reacted with (a) a catalyst applied to an active carbon carrier and containing a heteropolyoxometalate anion of vanadium, molybdenum and phosphorus and further the corresponding alkali metal, alkaline earth metal and/or ammonium counterion and (b) a gaseous oxygen-containing oxidizing agent. COPYRIGHT: (C)2000,JPO ...

Methode zur Herstellung von Alpha-Oxocarboxylaten und bei dieser Methode gebrauchter Katalysator

Verfahren zur Herstellung einer eine Carbonyl- und/oder Carboxylgruppe aufweisenden Verbindung

Verfahren zur Verbesserung einer schonenden Oxidation

CATALYSTS FOR THE OXIDATION AND AMMOXIDATION OF ALCOHOLS

Cu(II)- und Zn(II)-Phenoxylkomplexe und Radikalkomplexe hiervon, Verfahren zu deren Herstellung und deren Verwendung

PROCESS FOR THE CATALYTIC OXIDATION OF VICINAL DIOLS

... 1393338 Oxidation of vicinal diols HENKEL & CIE GmbH 16 Nov 1973 [20 Nov 1972] 53184/73 Heading C2C Carboxylic acids, aldehydes and ketones are prepared by the catalytic oxidation of vicinal diols with oxygen or gases containing oxygen in the presence of cobalt (II) ions. Polyvalent alcohols, ketones and/or hydroxy ketones, with maximum of 6 C, at least 2 oxygen or carbon atoms, and in which the number of carbon atoms exceeds the number of oxygen atoms by no more than 3, and if required as metal complexes, are added to the reaction. Organic solvents such as hydrocarbons, carboxylic acids or esters, benzonitrile and chlorobenzene may be present. The additives may be ethylene glycol, propane-1,2-diol glycerine, diacetyl, acetyl acetone, cobalt-(11)-acetylacetonate and cobalt (11) (glycol) 3 -acetate, and examples describe the oxidation of vicinal diols in the centre position of a C 14 -C 18 chain using cobalt (11) laurate catalyst with ethylene glycol, acetyl acetone additives.

VAPOUR PHASE OXIDATION OF DIOLS

... 1,234,766. Vapcur phase oxidation of 1,2- diols. LAPORTE CHEMICALS Ltd. 12 Dec., 1968 [15 Sept., 1967], No. 42180/67. Heading C2C. A hydroxycarbonyl compound is obtained by contacting a gaseous mixture containing a 1,2- diol of the general formula RCH(OH)CH 2 OH, wherein R is H, methyl, ethyl, n-propyl or isopropyl group with molecular oxygen, the molar ratio of oxygen to the diol in the gaseous mixture being less than 4: 1 in the presence of a metallic copper, silver or gold catalyst having a surface area of less than 50 square metres per gram. The gaseous mixture preferably contains a diluent gas, e.g. nitrogen, CO 2 , argon or helium and water vapour should also desirably be present. The reaction temperature may be between the b.pt. of the diol and about 500‹ C., e.g. between 250‹ and 350‹ C. Examples are given for the oxidation of ethylene glycol to form glycollic aldehyde together with some glyoxal and a small amount of glycollic acid, the catalyst being either pure copper gauze spirals ...

PROCEDURE FOR THE PRODUCTION OF A ALPHAOXOCARBONYLVERBINDUNG

PROCEDURE FOR THE OXIDATION FROM ALCOHOLS TO YOUR APPROPRIATE CARBONYLVERBINDUNGEN.

PROCEDURE IN MICRO-CHANNEL REACTORS WITH BOUND CATALYST AND A BOUND CATALYST OR A BOUND CHIRALE AID CONTAINING SYSTEMS

Preparation of aldehydes or ketones from alcohols

PROCESS FOR THE OXIDATION OF SECONDARY ALCOHOLS INTO KETONES

PRODUCTION OF PROPYLENE OXIDE

METHOD FOR PRODUCING OPTIONALLY SUBSTITUTED ALIPHATIC, AROMATIC OR HETERAROMATIC ALDEHYDES

The invention relates to a method for producing optionally substituted aliphatic, aromatic or heteraromatic aldehydes of formula (I), whereby the R represents a C1-C20 Alkyl radical, an aromatic or heteraromatic radical Ar which can optionally be substituted once or on a number of occasions by OH, C1- C6 alkyl, C1-C6 alkoxy, C1-C6 carboxylic acids or ester containing 1-6 C atoms in the ester part, phenyl, halogen, SO3H, NO2, NR1R2 or SR1 whereby R1 and R2 can be independently H, phenyl or C1-C6 alkyl. The invention is characterised by a compound of formula (II) wherein R has the above meaning, a) is diazotized in an acidic medium, at a temperature of between - 10 - + 100 ~C by a diazoation reagent and is transformed into the corresponding hydroxy carboxy acid whereby b) is transformed, by means of oxygen, into the appropriate aldehyde of formula (I) in the presence of a metal, the salt thereof, oxide or hydroxide as a catalyst.

CATALYSTS FOR THE OXIDATION AND AMMOXIDATION OF ALCOHOLS

SOLID-PHASE-SUPPORTED TRANSITION METAL CATALYSTS

A solid-phase-supported transition metal complex catalyst which is represented by the formula (I) (I) (wherein A represents a polystyrene/polyethylene glycol copolymer resin; Q represents lower alkyl, lower alkoxy, or a heterocycle optionally substituted by a halogen atom; L1 and L2 are the same or different and each represents halogeno, acetoxy, trifluoroacetoxy, trifluoromethanesulfonyl, tetrafluoroborate, or .pi.-allyl; and M represents copper, palladium, nickel, cobalt, rhodium, or platinum); and a solid-phase-supported transition metal catalyst which comprises a compound represented by the formula (II) (II) (wherein A and Q have the same meanings as defined above) and supported thereon a transition metal selected among copper, palladium, nickel, cobalt, rhodium, and platinum. These catalysts are usable in various reactions, can be used to conduct reactions in an aqueous system, have sufficient catalytic activity even in an oxygen atmosphere, and can be recovered and reused.

CATALYTIC METHOD TO PRODUCE HYDROXY SUBSTITUTED ARYLOPHENONES

... 2069630 9109003 PCTABS00005 Hydroxy substituted arylophenones in general, and 4,4'-dihydroxybenzophenones in particular, are produced by catalytic oxidation of diaryl compounds containing hydroxy substituted diaryl moieties in a liquid medium. Oxidation occurs by contact of the diaryl compounds with an oxygen-containing gas in the presence of an alcohol solvent, base, a metal atom catalyst, and optionally, activated carbon. The arylophenones produced are useful as monomers in the production of epoxy and polycarbonate resins.

РЕАКТОР, УСТРОЙСТВО И СПОСОБ ПРОВЕДЕНИЯ ГЕТЕРОГЕННОГО КАТАЛИЗА

Реактор, содержащий по меньшей мере одну контактную поверхность, выполненную из катализатора, покрытую или пропитанную катализатором, при этом контактная поверхность содержит спеченный металлический порошок или керамику, а реактор выполнен для обработки потока реагентов сдвигающим усилием. Устройство для проведения гетерогенного катализа включает в себя вышеупомянутый реактор и насос, выполненный для подачи реагентов по меньшей мере в один реактор. Способ проведения гетерогенного катализа включает введение реагентов в реактор, содержащий по меньшей мере одну контактную поверхность, выполненную из катализатора, покрытую или пропитанную катализатором, при условиях, которые способствуют образованию желаемого продукта, при этом контактная поверхность содержит спеченный металл или керамику, а также образование дисперсии реагентов в реакторе, при этом дисперсия содержит капли или пузырьки газа реагента со средним диаметром менее чем приблизительно 5 мкм.

РЕАКТОР И УСТРОЙСТВО И СПОСОБ ПРОВЕДЕНИЯ ГЕТЕРОГЕННОГО КАТАЛИЗА

Реактор, содержащий по меньшей мере одну контактную поверхность, изготовленную из катализатора или покрытую либо пропитанную катализатором, при этом контактная поверхность содержит матрицу, изготовленную из металлических порошков методом спекания, или спеченную керамику, а реактор сконструирован под обработку потока реагентов сдвигающим усилием. Система для проведения гетерогенно-катализируемой реакции, которая включает в себя вышеупомянутый реактор и насос, сконструированный для подачи реагентов по меньшей мере в один реактор. Способ проведения гетерогенно-катализируемой реакции, который включает стадии ввода реагентов в реактор, содержащий по меньшей мере одну контактную поверхность, изготовленную из катализатора или покрытую либо пропитанную катализатором, при условиях, которые способствуют образованию желаемого продукта, при этом контактная поверхность содержит спеченный металл или керамику, а также стадию образования дисперсии реагентов в реакторе, при этом дисперсия содержит капли ...

Method of preparation of the camphor from [...]-to-borneol or borneol

PROCEEDED Of ALCOHOL OXIDATION COMPOSE CORRESPONDING CARBONYLS of THEM

L'INVENTION CONCERNE LA PREPARATION D'ALDEHYDES OU DE CETONES PAR OXYDATION PARTIELLE D'ALCOOLS PRIMAIRES OU SECONDAIRES. ELLE SE CARACTERISE EN CE QUE L'OXYDATION EST EFFECTUEE EN MILIEU LIQUIDE ORGANIQUE AU MOYEN D'OXYGENE MOLECULAIRE OU D'UN GAZ EN CONTENANT, EN PRESENCE D'UN CATALYSEUR CONSTITUE PAR UN METAL NOBLE DU GROUPEVIII DE LA CLASSIFICATION PERIODIQUE DES ELEMENTS ASSOCIE A UN METAL CHOISI PARMI LE BISMUTH, LE PLOMB, LE CADMIUM, LE MERCURE, L'INDIUM, LE TELLURE, L'ETAIN, L'ARGENT ET LEURS DERIVES, DEPOSES SUR UN MEME SUPPORT SOLIDE ET EN CE QUE L'EAU FORMEE EST ELIMINEE. CE PROCEDE EST APPLICABLE A UN GRAND NOMBRE D'ALCOOLS PRIMAIRES ET SECONDAIRES ET PERMET D'ACCEDER DE MANIERE PREFERENTIELLE AUX ALDEHYDES PLUTOT QU'AUX ACIDES LORSQUE L'ALCOOL DE DEPART EST UN ALCOOL PRIMAIRE THE INVENTION CONCERNS THE PREPARATION OF ALDEHYDES OR KETONES BY PARTIAL OXIDATION OF PRIMARY OR SECONDARY ALCOHOLS. IT IS CHARACTERIZED IN THAT THE OXIDATION IS CARRIED OUT IN AN ORGANIC LIQUID MEDIUM BY MEANS OF MOLECULAR OXYGEN OR A GAS CONTAINING, IN THE PRESENCE OF A CATALYST CONSTITUTED BY A NOBLE METAL OF GROUP VIII OF THE PERIODIC CLASSIFICATION OF ASSOCIATED ELEMENTS A METAL CHOSEN FROM BISMUTH, LEAD, CADMIUM, MERCURY, INDIUM, TELLUR, TIN, SILVER AND THEIR DERIVATIVES, DEPOSITED ON A SAME SOLID SUBSTRATE AND IN THAT THE FORMED WATER IS ELIMINATED . THIS PROCESS IS APPLICABLE TO A LARGE NUMBER OF PRIMARY AND SECONDARY ALCOHOLS AND ALLOWS PREFERENTIAL ACCESS TO ALDEHYDES RATHER THAN ACIDS WHEN THE STARTING ALCOHOL IS A PRIMARY ALCOHOL

Process for recovering purified 4-hydroxy-2,4,6-trimethyl-2,5-cyclohexadiene-1-one

A method for improving a reaction of controlled oxydation

PARFORMYLPHENOLATE DE SODIUM CRISTALLISE, SON PROCEDE DE PREPARATION ET SON APPLICATION

L'INVENTION CONCERNE LE PARFORMYLPHENOLATE DE SODIUM CRISTALLISE, SON PROCEDE DE PREPARATION ET SON APPLICATION. LE PROCEDE D'OBTENTION CONSISTE A CONDENSER DANS L'EAU EN PRESENCE DE NAOH ENTRE 30 ET 100C, L'ACIDE GLYOXYLIQUE SUR UN EXCES DE PHENOL; A SOUMETTRE LA SOLUTION NEUTRALISEE ET DEBARRASSEE DU PHENOL NON TRANSFORME, A CHAUD, SOUS PRESSION DE 0 A UNE DEGRADATION OXYDANTE DECARBOXYLANTE CATALYTIQUE EN PRESENCE DE NAOH; A FAIRE CRISTALLISER LA SOLUTION RESULTANT APRES ELIMINATION DU CATALYSEUR, FILTRATION ET CONCENTRATION SOUS VIDE, ENFIN A SECHER SOUS VIDE A 20 POUR OBTENIR LE SEL CRISTALLISE AVEC 2MOLES DE HO ET SOUS VIDE A 100C POUR L'OBTENIR ANHYDRE. APPLICATION A LA FABRICATION DE PARA-ANISALDEHYDE.

COMPOSES POLYENIQUES UTILES COMME COLORANTS

La présente invention concerne des composés chimiques nouveaux. Il s'agit de composés polyéniques de formule ...

Novel process for preparation of 4-hydroxy-2,4,6-trimethyl-2,5-cyclohexadiene-1-one

LIQUID PHASE OXIDATION OF OLEFINS TO OLEFIN OXIDES, GLYCOLS AND GLYCOL ESTERS

NEW DERIVATIVES OF 1,5-DIMETHYLBICYCLO (3,2,1) OCTANE, PREPARATION OF THESE COMPOSE AND THEIR USE AS COMPOSES ODORIFEROUS

SODIUM PARAHYDROXYMANDELATE RACEMIC CRYSTALLIZES, ITS PREPARATION METHOD AND ITS APPLICATION TO THE PREPARATION OF CRYSTALLINE SODIUM PARAFORMYLPHENOLATE

L'invention concerne le parahydroxymandélate de sodium racémique cristallisé. On l'obtient par condensation d'acide glyoxylique ou de glyoxylate de so ium sur un excès de phénol en milieu aqueux sodique, élimination du phénol en excès, concentration, refroidissement puis essorage du précipité qui est lavé et séché à 40 ou 110 degrés C pour obtenir le monohydrate ou le produit anhydre. Le produit ainsi obtenu sert à la préparation de paraformylphénolate de sodium cristallisé. The invention relates to crystalline racemic sodium parahydroxymandelate. It is obtained by condensation of glyoxylic acid or of sodium glyoxylate on an excess of phenol in an aqueous sodium medium, elimination of the excess phenol, concentration, cooling then dewatering of the precipitate which is washed and dried at 40 or 110 degrees C. to obtain the monohydrate or the anhydrous product. The product thus obtained is used for the preparation of crystallized sodium paraformylphenolate.

PROCESS TO DRAW OUT THE LIFE OF CATALYSERS USED IN THE PROCESSES OF OXIDATION FOR GAS OR VAPOR

METHODS AND COMPOSITIONS FOR ENANTIOSELECTIVE OXIDATION REACTIONS

This invention provides methods and catalysts systems for catalyzing enantioselective oxidation reactions, including cyclization reactions and enantioselective oxidation reactions of secondary alcohols and other similarly reactive organic substrates. Use of the methods and catalyst systems for kinetic resolution of racemic mixtures of secondary alcohols is also described.

Pure crystalline racemic sodium parahydroxymandelate, process for its preparation and uses thereof

Pure crystalline racemic sodium parahydroxymandelate free from any ions of chloride, acetate, formate and sulfate group, is manufactured by condensing in water, in the presence of sodium hydroxide at a temperature between 30° and 100° C., glyoxylic acid or sodium glyoxylate with an excess of phenol, concentrating it hot, until the start of crystallization of the solution thus obtained after neutralization and removal of the unconverted phenol either by steam distillation, or by extraction with a water-immiscible organic solvent. The resulting suspension obtained is cooled, drained after some hours of standing at a temperature close to 5° C., and the resulting precipitate recovered by washing it with iced water followed by drying to constant weight. The product is useful for the manufacture of crystalline sodium paraformylphenolate.

Oxidation Catalyst And Oxidation Method

The present invention provides a method for oxidizing a hydrocarbon, an alcohol or an aldehyde, which comprises: oxidizing a hydrocarbon, an alcohol or an aldehyde to an alcohol, an aldehyde, a carboxylic acid or a carboxylate ester corresponding thereto, in a liquid phase having: a region in which oxygen is substantially present; and a region in which oxygen is substantially absent, in the presence of a catalyst containing a palladium, wherein the region in which oxygen is substantially absent is 0.1 to 10% by volume with respect to a total of the region in which oxygen is substantially present and the region in which oxygen is substantially absent.

Oxidation catalyst and oxidation method

The present invention provides a method for oxidizing a hydrocarbon, an alcohol or an aldehyde, which comprises: oxidizing a hydrocarbon, an alcohol or an aldehyde to an alcohol, an aldehyde, a carboxylic acid or a carboxylate ester corresponding thereto, in a liquid phase having: a region in which oxygen is substantially present; and a region in which oxygen is substantially absent, in the presence of a catalyst containing a palladium, wherein the region in which oxygen is substantially absent is 0.1 to 10% by volume with respect to a total of the region in which oxygen is substantially present and the region in which oxygen is substantially absent.

Oxidation catalyst system and method of oxidation with the same

PCT No. PCT/JP99/00566 Sec. 371 Date Sep. 24, 1999 Sec. 102(e) Date Sep. 24, 1999 PCT Filed Feb. 10, 1999 PCT Pub. No. WO99/42211 PCT Pub. Date Aug. 26, 1999The oxidation catalyst system of the invention is composed of (A) a ruthenium compound and (B) a dioxybenzene or its oxidant. The ruthenium compound (A) includes dichlorotris(triphenylphosphine)ruthenium (II) and other ruthenium complexes and Ru/C. The dioxybenzene or its oxidant (B) includes hydroquinone. The oxidation of an alcohol by molecular oxygen in the presence of the oxidation catalyst system can give the corresponding carbonyl compound in high yield. A primary alcohol is more selectively oxidized than a secondary alcohol.

Process for preparing ketone or carboxylic acid by catalytic oxidation of secondary or primary alcohol

A process for preparing a ketone or carboxylic acid by catalytic oxidation of a secondary or primary alcohol comprises adding the secondary or primary alcohol as a raw material and N-hydroxyphthalimide (NHPI) combined with phthalocyanine, serving as a catalytic system, into an amount of an organic solvent into which oxygen gas is then introduced, to proceed with an oxidation reaction to give the ketone or carboxylic acid. The oxygen gas is employed as the source of an oxidant. The oxidation reaction may be carried out under normal pressure at 60 to 120° C. for 9 to 36 hours. The process can produce a high yield of ketone or carboxylic acid. Compared with conventional technology, the process has several advantages, such as the green oxidant, the cheap catalyst which can also be easily prepared and separated, and mild reaction conditions, and it is also an environmentally friendly process for alcohol oxidation.

CATALYST SYSTEM FOR AEOROBIC OXIDATION OF PRIMARY AND SECONDARY ALCOHOLS.

Способ получения 4-окси-2,4,6-триметил-циклогексадиен-2,5-она-1

VERFAHREN ZUR HERSTELLUNG VON 4-HYDROXY-4-ALKOYL-2,5-CYCLOHEXADIEN-1-ON

Katalysator für die selektive Oxidation von Alkoholen

Es wird ein Katalysator beansprucht, der ein Metall, eine Metallverbindung oder ein Gemisch davon sowie mindestens eine Alkylenverbindung enthält. Der beanspruchte Katalysator eignet sich insbesondere für die selektive Oxidation von Alkoholen in komprimiertem Kohlendioxid.

Ionenaustauschende Harze und Verfahren zu ihrer Herstellung

Graphene oxide and graphite oxide catalysts and systems

A process for preparing an aldehyde or ketone from an alcohol

A process for preparing an aldehyde or ketone of formula (I): wherein R 1 is hydrogen, alkyl or optionally substituted aryl; and R 2 is alkyl, alkenyl optionally substituted by phenyl, optionally substituted aryl, optionally substituted heteroaryl or optionally substituted arylcarbonyl; or R 1 and R 2 join to form a carbocyclic ring optionally substituted with alkyl or alkenyl; comprising reacting an alcohol of formula (II): with oxygen in the presence of a catalytic amount of a tetraalkylammonium ruthenium species and under anhydrous conditions.

Improvements relating to the manufacture of ketones

... 338,518. Dreyfus, H. Aug. 19, 1929. Ketones.-Aliphatic ketones, particularly acetone, are made by subjecting the vapours of aliphatic alcohols containing at least two carbon atoms, in admixture with oxygen or air to the action of high temperatures, e.g. 250-700‹, in the presence of a catalyst composed of compounds or earth alkali metals, the earth alkali metals being the only metallic elements present. Examples of catalysts are the oxides, hydroxides, carbonates, meta borates, normal-, meta- and pyro-phosphates, and silicates of calcium, barium and magnesium which may be deposited on pumice or kieselguhr. If desired naturally occurring forms of these compounds may be used, such as wollastonite, augite, osteolite, and the calcium borosilicates, danburite and datolite. The gases may be passed through a tube of copper, iron, staybrite or earthenware containing the catalyst, and the vapour of an aliphatic acid such as acetic acid may be added to the gases, in which the oxygen may be greatly ...

Improvements in and relating to the production of oxygen-containing organic compounds

Monocarboxylic acids, adipic acid and epsilon-caprolactone are made by co-oxidizing cyclohexanol and an aldehyde in the liquid phase with a gas containing molecular oxygen in the absence or presence of a catalyst comprising at least one transition metal compound in an amount of not more than 0.01% by weight metal compound based on cyclohexanol and under such conditions that the molar ratio of aldehyde to cyclohexanol in the reaction mixture at any instant does not exceed 1 : 10. Specified aldehydes are acetaldehyde, propionaldehyde, n- and iso-butyraldehyde, adipaldehyde, benzaldehyde and tolualdehydes. Up to 4 mol aldehyde per mol hexanol may be used, but the aldehyde is added gradually to the cyclohexanol to maintain the low concentration of aldehyde in the reaction mixture. It is preferred to operate at 45-135 DEG C. and to use a catalyst comprising a Co, Mn, Ni, V, Cr, Ti or Ru carboxylate. In the examples some glutaric and succinic acid and cyclohexanone are obtained as by-products ...

Procedure for the production of aliphatic Ketonen

PRODUCTION OF ALDEHYDES OR KETONEN FROM ALCOHOLS

AEROBE CATALYSTS FOR ALCOHOL OXIDATION IN ORGANIC SOLVENTS AND SUPERCRITICAL CARBON DIOXIDE, THEIR MANUFACTURING PROCESSES AND THEIR USE FOR OXIDATIVE TRANSFORMATIONS

Gold catalyst for selective oxidation

Catalytic Conversion Of Alcohols To Aldehydes Or Ketones

Catalytic reactions are taught using air or oxygen for oxidative chemical conversion of primary alcohols to aldehydes and for secondary alcohols to ketones in a vapor phase at ambient pressure. The catalytic process converts ethanol to acetaldehyde, n-propanol to propionaldehyde, 2-propanol to acetone, and other alcohols to aldehydes and ketones. The catalysts are based on molecular strings of di-, tri- and/or poly-groups of transition metal complexes possessing a specific degree of symmetry. Laboratory results have demonstrated [vanadium (II)] 2 , [chromium (II)] 2 , [manganese (II)] 2 , [cobalt (II)] 2 oxalate and symmetric transition metal catalysts to be effective for oxidative catalytic conversion of primary alcohols to products comprising related aldehydes and secondary alcohols to products comprising ketones.

PROCESS FOR THE PREPARATION OF ALPHA, BETA UNSATURATED ALDEHYDES BY OXIDATION OF ALCOHOLS IN THE PRESENCE OF A LIQUID PHASE

Process for the preparation of alpha, beta unsaturated aldehydes by oxidation of alcohols in the presence of a liquid phase wherein the liquid phase contains 0.1 to less than 25 weight-% water and wherein the liquid phase contains at least 25 weight-% of alcohol(s) of general formula (II) and alpha, beta unsaturated aldehyde(s) of general formula (I) and wherein the oxidant is oxygen and/or hydrogen peroxide. 111.-. (canceled)13. The process according to claim 12 , wherein the alcohol according to formula (II) is used claim 12 , wherein R claim 12 , Ror R claim 12 , independently of one another claim 12 , are selected from H and CH.14. The process according to claim 12 , wherein the alcohol according to formula (II) is used claim 12 , wherein Ris H and Rand Rare CH.15. The process according to claim 12 , wherein the liquid phase contains 0.5 to 20 weight-% claim 12 , water based on the total weight of the liquid phase.16. The process according to claim 12 , wherein the liquid phase contains 1.0 to 15 weight-% water based on the total weight of the liquid phase.17. The process according to claim 12 , wherein the liquid phase contains less than 75 weight-% solvent based on the total weight of the liquid phase.18. The process according to claim 12 , wherein the liquid phase contains less than 50 weight-% based on the total weight of the liquid phase.19. The process according to claim 12 , wherein the liquid phase contains less than 10 weight-% solvent based on the total weight of the liquid phase.20. The process according to wherein the liquid phase contains at least 30 weight-% of alcohols of general formula (II) and alpha claim 12 , beta unsaturated aldehydes of general formula (I) claim 12 , based on the total weight of the liquid phase.21. The process according to wherein the liquid phase contains at least 70 weight-% of alcohols of general formula (II) and alpha claim 12 , beta unsaturated aldehydes of general formula (I) claim 12 , based on the total weight of ...

NANOPARTICLE CATALYSTS FOR CONVERSION OF CYCLOHEXANOL TO CYCLOHEXANONE

Methods for converting an alcohol, such as cyclohexanol to a ketone, such as cyclohexanone, include reacting the alcohol in the presence of a catalyst and oxygen to produce the ketone. In one exemplary embodiment, the catalyst comprises a microporous copper chloropyrophosphate framework including a plurality of noble metal nanoparticles. In one exemplary embodiment, the noble metal nanoparticles include at least one metal selected from the group consisting of platinum, palladium, and gold. 1. A catalyst comprising a microporous copper chloropyrophosphate framework comprising a plurality of noble metal nanoparticles , the catalyst activated in a reducing atmosphere.2. The catalyst of claim 1 , wherein the microporous copper chloropyrophosphate framework has the general formula:{'br': None, 'sub': 9', '6', '2', '7', '4', '4', 'y, '[ACu(PO)Cl].[MX]Cl'}{'sub': '4', 'claim-text': M is selected from Cu, Au, Pt, and Pd;', 'X is selected from Cl and Br; and', 'y is 2 when M is Pt, Pd, or Cu and y is 3 when M is Au., 'where: A is selected from K, Rb, Cs, and NH;'}3. The catalyst of claim 2 , wherein the microporous copper chloropyrophosphate framework has a general formula selected from the group consisting of:{'sub': 9', '6', '2', '7', '4', '4', '4', '9', '6', '2', '7', '4', '3', '4', '9', '6', '2', '7', '4', '3', '4, 'RbCu(PO)Cl(AuCl), RbCu(PO)Cl(PtCl), and RbCu(PO)Cl(PdCl).'}4. The catalyst of claim 1 , wherein the catalyst comprises precursor complexes that result in isolated noble metal nanoparticle sites upon activation.5. The catalyst of claim 4 , wherein the precursor complexes are selected from the group consisting of [PtCl] claim 4 , [PdCl] claim 4 , and [AuCl].6. The catalyst of claim 1 , wherein the noble metal nanoparticles include at least one metal selected from the group consisting of platinum claim 1 , palladium claim 1 , and gold.7. The catalyst of claim 6 , wherein the microporous copper chloropyrophosphate framework includes a plurality of mono-metallic ...

NANOPARTICLE CATALYSTS FOR CONVERSION OF CYCLOHEXANOL TO CYCLOHEXANONE

Methods for converting an alcohol, such as cyclohexanol to a ketone, such as cyclohexanone, include reacting the alcohol in the presence of a catalyst and oxygen to produce the ketone. In one exemplary embodiment, the catalyst comprises a microporous copper chloropyrophosphate framework including a plurality of noble metal nanoparticles. In one exemplary embodiment, the noble metal nanoparticles include at least one metal selected from the group consisting of platinum, palladium, and gold. 1. A method of converting an alcohol to a ketone , comprising:reacting the alcohol in the presence of a catalyst and oxygen to produce the ketone, wherein the catalyst comprises a microporous copper chloropyrophosphate framework including a plurality of noble metal nanoparticles.2. The method of claim 1 , wherein the alcohol is a cyclic alcohol.3. The method of claim 2 , wherein the alcohol is cyclohexanol and the ketone is cyclohexanone.4. The method of claim 3 , further comprising providing a mixture of cyclohexanone and cyclohexanol claim 3 , wherein the provided cyclohexanol is reacted in said reacting step.5. The method of claim 4 , wherein the mixture comprises 5 wt. % to 95 wt. % cyclohexanol claim 4 , based on the total weight of the cyclohexanol and cyclohexanone.6. The method of claim 4 , wherein the mixture comprises 40 wt. % to 60 wt. % cyclohexanol claim 4 , based on the total weight of the cyclohexanol and cyclohexanone.7. The method of claim 1 , wherein the noble metal nanoparticles include at least one metal selected from the group consisting of platinum claim 1 , palladium claim 1 , and gold.8. The method of claim 1 , wherein the noble metal nanoparticles include at least two metals selected from the group consisting of platinum claim 1 , palladium claim 1 , and gold.9. A catalyst comprising a microporous copper chloropyrophosphate framework including a plurality of noble metal nanoparticles.10. The catalyst of claim 9 , wherein the microporous copper ...

Supported noble metal-comprising catalyst for oxidative dehydrogenation or epoxidation

Supported noble metal-comprising catalysts which can be obtained by a1) application of a noble metal compound, optionally in admixture with additives acting as promoters, to a support material, then drying, and a2) application of a reducing agent to a support material, then drying, wherein steps a1) and a2) are repeated simultaneously or in alternating turns, or wherein either of the compounds is applied entirely and then the other one is applied entirely, b) optionally afterwards drying of the resulting product, and c) subsequent calcination, its use, especially for oxidative dehydrogenation and a process for producing it.

Process of preparing 4-methyl-3-decen-5-one

A method of preparing 4-methyl-3-decen-5-one. The method includes the step of oxidizing 4-methyl-3-decen-5-ol in the presence of (i) oxygen and (ii) a metal catalyst, wherein the metal catalyst contains a catalytic metal deposited on nanoparticle support.

METHOD OF PROCESSING ORGANIC SUBSTANCE IN PRESENCE OF WATER, CONTACT REACTION DEVICE AND SYSTEM INCLUDING SAME AND METHOD OF RECOVERING WASTE HEAT FROM LOW-TEMPERATURE HEAT SOURCE

An object is to provide a novel method for processing an organic substance with a catalyst under conditions in the presence of water. According to the present invention, there is provided a method of processing an organic substance under a hydrothermal condition by utilizing an oxidation-reduction cycle of a metal oxide catalyst, the method including: (i) oxidizing an organic substance with oxygen discharged from a metal oxide catalyst having an oxidized metal value so as to form a metal oxide catalyst having a reduced metal value and an oxidized organic substance; and (ii) oxidizing, simultaneously with the above (i), the metal oxide catalyst having the reduced metal value with oxygen discharged from water so as to reproduce the metal oxide catalyst having the oxidized metal value, where the metal oxide catalyst is a solid electrolyte. 1. A method of processing an organic substance under a hydrothermal condition by utilizing an oxidation-reduction cycle of a metal oxide catalyst , is the method comprising:(i) oxidizing an organic substance with oxygen discharged from a metal oxide catalyst having an oxidized metal value so as to form a metal oxide catalyst having a reduced metal value and an oxidized organic substance; and(ii) oxidizing, simultaneously with the above (i), the metal oxide catalyst having the reduced metal value with oxygen discharged from water so as to reproduce the metal oxide catalyst having the oxidized metal value,wherein the metal oxide catalyst is a solid electrolyte.2. The method according to claim 1 ,wherein in the above (i) and (ii) as a whole, ΔH (under the hydrothermal condition)>0, anda reaction product obtained from the organic substance and water contains an oxidized organic substance and a hydrogen gas.3. The method according to claim 2 ,wherein the reaction product contains, in addition to the oxidized organic substance and the hydrogen gas, a substance obtained by further hydrogenating the oxidized organic substance.4. The method ...

Cyclic Imide Slurry Compositions

Provided herein is a cyclic imide slurry composition and processes for forming and/or using such a composition. The slurry composition comprises solid cyclic imide and organic liquid, such as liquid alkylbenzene, liquid cyclohexane, and/or liquid organic alcohol (such as cyclohexanol). The slurry composition may find particular use in processes in which the cyclic imide serves as an oxidation catalyst (e.g., as a radical initiator). For instance, the slurry composition may be useful in the oxidation of a liquid alkylbenzene such as cyclohexylbenzene to corresponding 1-cyclohexyl-1-phenyl hydroperoxide. Such an oxidation reaction may further be part of an integrated process for the production of phenol and/or cyclohexanone from benzene via hydroalkylation to form cyclohexylbenzene. 1. A process comprising:(a) feeding a solid cyclic imide and a liquid alkylbenzene to a mixing device;(b) within the mixing device, forming a slurry comprising 3 wt % to 45 wt % of the solid cyclic imide in the liquid alkylbenzene;(c) providing the slurry and an oxygen-containing gas to a mixed gas/liquid oxidation reaction zone; and(d) oxidizing at least a portion of the alkylbenzene in the mixed gas/liquid oxidation reaction zone in the presence of the cyclic imide, thereby forming a corresponding alkylbenzene-hydroperoxide.3. The process of claim 2 , wherein the cyclic imide is N-hydroxyphthalimide (NHPI).5. The process of claim 4 , wherein the alkylbenzene is cyclohexylbenzene claim 4 , and the alkylbenzene-hydroperoxide is cyclohexyl-1-phenyl-1-hydroperoxide.6. The process of claim 5 , further comprising:(a-1) contacting benzene with hydrogen under hydroalkylation conditions in the presence of a hydroalkylation catalyst to produce cyclohexylbenzene;(a-2) feeding a first portion of the cyclohexylbenzene to the mixing device; and(a-3) feeding a second portion of the cyclohexylbenzene to the oxidation reaction zone.7. The process of claim 1 , further comprising measuring mass flow rate ...

PROCESS FOR PREPARING ALPHA-DAMASCONE

The present invention relates to a process for preparing 1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-en-1-one, which comprises a) providing 6,10-dimethylundeca-1,5,9-trien-4-ol, b) oxidizing 6,10-dimethylundeca-1,5,9-trien-4-ol provided in step a) with an oxidizing agent in the presence of at least one organic nitroxyl radical, at least one nitrate compound and an inorganic solid to yield 6,10-dimethylundeca-1,5,9-trien-4-one, c) reacting the 6,10-dimethylundeca-1,5,9-trien-4-one obtained in step b) with an acid to yield 1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-en-1-one. 115.-. (canceled)16. A process for preparing 1-(2 ,6 ,6-trimethylcyclohex-2-en-1-yl)but-2-en-1-one , comprising:a) providing 6,10-dimethylundeca-1,5,9-trien-4-ol,b) oxidizing the 6,10-dimethylundeca-1,5,9-trien-4-ol provided in step a) with an oxidizing agent, which is selected from the group consisting of hypochlorites, hydrogen peroxide and molecular oxygen, in the presence of at least one organic nitroxyl radical, at least one nitrate compound and an inorganic solid, which is selected from the group consisting of alkali metal halides and alkali earth metal halides, to yield 6,10-dimethylundeca-1,5,9-trien-4-one,c) reacting the 6,10-dimethylundeca-1,5,9-trien-4-one obtained in step b) with an acid selected from mineral acids to yield 1-(2,6,6-trimethylcyclohex-2-en-1-yl)but-2-en-1-one.17. The process of claim 16 , where the total amount of the at least one nitroxyl radical used in step b) is in the range of 1 to 50 mol-% claim 16 , based on the amount of 6 claim 16 ,10-dimethylundeca-1 claim 16 ,5 claim 16 ,9-trien-4-ol in the reaction mixture.18. The process according to claim 16 , where the nitroxyl radical used in step b) is selected from the group consisting of (2 claim 16 ,2 claim 16 ,6 claim 16 ,6-tetramethylpiperidin-1-yl)oxyl compounds claim 16 , 2-azaadamantane-N-oxyl compounds claim 16 , (1 claim 16 ,1 claim 16 ,3 claim 16 ,3-tetramethylisoindolin-2-yl)oxyl compounds claim 16 , 9- ...

INTEGRATED PROCESS FOR PRODUCTION OF HIGH OCTANE GASOLINE, HIGH AROMATIC NAPHTHA AND HIGH CETANE DIESEL FROM HIGH AROMATIC MIDDLE DISTILLATE RANGE STREAMS

An integrated process for production of ultra low sulfur products of high octane gasoline, high aromatic naphtha and high Cetane Diesel from high aromatic middle distillate range streams from any cracker units such as Light Cycle Oil (LCO) stream of Fluid catalytic cracking (FCC) units and comprising of subjecting the feed boiling between 200 to 400° C. and having at least 30 wt % multi-ring aromatics content subjected to hydrotreating for removal of heteroatoms like sulfur and nitrogen and at a pressure sufficient only for saturation of one ring of multi-ring aromatics. The effluent from hydrotreating is subjected to hydrocracking at same pressure of hydrotreating step above for selective opening of saturated ring of multi-ring aromatics. The effluent from hydrocracking is separated in CUT-1 boiling between 35 to 70° C., CUT-2 boiling between 70 to 200° C. in which the monoaromatics and alkylated monoaromatics are concentrated and CUT-3 boiling above 200° C. in which concentration of saturates i.e. paraffins and naphthenes significantly increased. The CUT-3 is selectively oxidized in selective oxidation step in presence of catalyst, an oxidizing agent and operating conditions such that it results in diesel product with more enhanced Cetane. 1. An integrated process for production of High Octane Gasoline , High Aromatic Naphtha and High Cetane Diesel , the process comprising:a. subjecting a feed to hydrotreating step at a predetermined pressure to obtain a first effluent having a substantially reduced quantity of hetero-atoms compared to the feed, the feed comprising at least 30 wt % multi-ring aromatics and having boiling point between 200 to 400° C., wherein the predetermined pressure is capable to saturate one or more rings of multi-ring aromatics and to remains unsaturated one or more rings of the multi-ring aromatics;b. subjecting the first effluent to a hydrocracking step at the predetermined pressure to obtain a second effluent, the hydrocracking step ...

Alpha-Hydrogen Substituted Nitroxyls And Derivatives Thereof As Catalysts

Novel alpha-hydrogen substituted nitroxyl compounds and their corresponding oxidized (oxoammonium cations) and reduced (hydroxylamine) forms, and the use of such compounds, inter alia, for oxidation of primary and secondary alcohols to aldehydes and ketones, respectively; resolution of racemic alcohols; desymmetrization of meso-alcohol; as radicals and spin trapping reagents; and as polymerization agents. Processes for preparing the novel nitroxyl/oxoammonium/hydroxylamine compounds from the corresponding amines, and certain novel amine derivatives and their uses. The compounds and amine precursors are useful as ligands for transition metals and as organocatalysts in e.g., aldol reactions. 5. The compound according to claim 1 , wherein Ris selected from the group consisting of:an unsubstituted or substituted aryl selected from phenyl, 4-chlorophenyl, naphthyl, anisyl and mesityl; andan unsubstituted or substituted alkyl selected from methyl, ethyl, propyl, isopropyl, n-butyl, isobutyl, sec-butyl and t-butyl.6. The compound according to claim 1 , wherein Ris an unsubstituted or substituted C-Calkyl or C-Ccycloalkyl.7. The compound according to claim 1 , wherein Ris H.8. The compound according to claim 1 ,{'sup': '1', 'wherein Ris the same at each occurrence; or'}{'sup': '2', 'wherein Ris the same at each occurrence; or'}{'sup': '3', 'wherein Ris the same at each occurrence; or'}{'sup': '1', 'wherein Ris different at each occurrence; or'}{'sup': '2', 'wherein Ris different at each occurrence; or'}{'sup': '3', 'wherein Ris different at each occurrence; or'}{'sup': 1', '2, 'wherein Rand Rare the same; or'}{'sup': 1', '2, 'wherein Rand Rare different from each other.'}10. The compound according to claim 1 , which is in a racemic form or in optically active form.11. A process for oxidizing a primary alcohol to the corresponding aldehyde claim 1 , or for oxidizing a secondary alcohol to the corresponding ketone claim 1 , the process comprising the step of reacting the ...

Process for preparing mandelic aromatic compounds and aromatic aldehyde compounds

A process for preparing an aromatic compound or compounds where at least one mandelic group —CHOH—COOH is described, comprising a reaction for condensation of at least one aromatic compound with glyoxylic acid or derivatives thereof, wherein said condensation reaction is carried out substantially in the absence of any acid or any base added to the reaction medium. The condensation reaction is followed by an oxidation reaction in order to obtain aromatic aldehyde. 1. A process for the preparation of one or more mandelic aromatic compounds comprising reacting at least one aromatic compound with glyoxylic acid or its derivatives under condensation conditions substantially in the absence of any added acid or added base.2. The process of claim 1 , wherein the at least one aromatic compound is selected from the group consisting of substituted benzenes claim 1 , phenol claim 1 , substituted phenols claim 1 , heterocyclic aromatic compounds claim 1 , and polycyclic aromatic compounds.4. The process of claim 3 , wherein the position para with respect to the hydroxyl group of the substituted phenol according to formula (I) is unsubstituted.5. The process of claim 3 , wherein the substituted phenols are selected from the group consisting of o-cresol claim 3 , m-cresol claim 3 , 3-ethylphenol claim 3 , 2-(tert-butyl)phenol claim 3 , guaiacol claim 3 , and guaethol.6. The process of claim 1 , wherein the glyoxylic acid is in the monohydrate form.7. The process of claim 1 , wherein the step of reacting is carried out in the presence of at least one catalyst.8. The process of claim 7 , wherein the catalyst is selected from transition metal complexes comprising oxygen-comprising ligands.9. The process of claim 7 , wherein the catalyst is selected from the group consisting of: iron(II) acetate claim 7 , iron(III) acetate claim 7 , copper(II) acetate claim 7 , iron(II) acetylacetonate claim 7 , iron(III) acetylacetonate claim 7 , copper(II) acetylacetonate claim 7 , and copper(III) ...

CATALYTIC OXIDATION OF BUT-3-ENE-1,2-DIOL

The invention concerns a synthesis process of a compound of the following formula (I) or one of the salts thereof, 2. The process according to claim 1 , wherein the active phase consists of palladium or of a mixture of palladium and at least one noble metal selected from platinum and gold.3. The process according to claim 1 , wherein the active phase consists of a noble metal or a mixture of noble metals in a content ranging from 0.005 to 50% by weight relative to the weight of the support in the oxide form.4. The process according to claim 1 , wherein the support comprises at least one of hydrotalcites (HT) claim 1 , brucites claim 1 , hydroxyapatite Ca(PO)(OH) claim 1 , tricalcium phosphate Ca(PO) claim 1 , calcium hydrogenphosphate CaHPO(0-2)HO claim 1 , calcium diphosphate CaPO claim 1 , octacalcium phosphate CaH(PO).5HO claim 1 , tetracalcium phosphate Ca(PO)O claim 1 , amorphous calcium phosphates Ca(PO).nHO claim 1 , oxides claim 1 , hydroxides claim 1 , carbonates claim 1 , bicarbonates claim 1 , phosphates claim 1 , diphosphates claim 1 , and calcium hydrogenphosphates claim 1 , cesium claim 1 , lithium claim 1 , rubidium claim 1 , potassium claim 1 , magnesium claim 1 , barium claim 1 , cerium claim 1 , lanthanum claim 1 , aluminum claim 1 , zinc claim 1 , copper claim 1 , and mixtures thereof.6. The process according to claim 1 , wherein the catalyst comprises a promoter selected from bismuth claim 1 , lead claim 1 , antimony claim 1 , tin claim 1 , niobium claim 1 , tellurium claim 1 , indium claim 1 , gallium claim 1 , zinc claim 1 , copper claim 1 , nickel claim 1 , cobalt claim 1 , silver claim 1 , tungsten claim 1 , molybdenum claim 1 , zirconium claim 1 , vanadium claim 1 , chromium claim 1 , manganese claim 1 , iron claim 1 , cerium claim 1 , praseodymium claim 1 , samarium claim 1 , titanium and mixtures thereof.7. The process according to claim 1 , wherein the content of the promoter of the catalyst ranges from 0.005% to 500% claim 1 , by weight ...

METHODS USED IN MICRO-CHANNEL REACTORS WITH A TIED CATALYST AND A BOUND CATALYST OR BOUND CHIRAL TOOLS

PROCESS FOR THE OXIDATION OF ALCOHOLS TO CORRESPONDING CARBONYL COMPOUNDS

Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxygen in the reaction of organic compounds

Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxgen are disclosed. Processes whereby activated hydrogen peroxide or dioxygen are used to transform various organic substrates are also disclosed. In particular, processes for the conversion of methylenic carbons to carbonyls, for the dioxygenation of aryl olefins, acetylenes and aryl-α-diols, for the oxidation of alcohols and aldehydes and for the removal of mercaptans from gaseous streams and for the removal of hydrogen sulfide and/or mercaptans from liquid streams are disclosed.

PREPARATION PROCESS FOR A HYDROXYARDOTIC ALDEIDE

Tethered catalyst processes in microchannel reactors and systems containing a tethered catalyst or tethered chiral auxiliary

The invention provides systems and methods for conducting reactions in which a reactant contacts a tethered catalyst and/or tethered chiral auxiliary in a microchannel and is converted to product.

Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxygen in the reaction of organic compounds

Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxygen are disclosed. Processes whereby activated hydrogen peroxide or dioxygen are used to transform various organic substrates are also disclosed. In particular, processes for the conversion of methylenic carbons to carbonyls, for the dioxygenation of aryl olefins, acetylenes and aryl-$g(a)-diols, for the oxidation of alcohols and aldehydes and for the removal of mercaptans from gaseous streams and for the removal of hydrogen sulfide and/or mercaptans from liquid streams are disclosed.

Method for obtaining alcoxy-hydroxybenzaldehyde, that is substantially free of alkyl-alcoxy-hydroxybenzaldehyde

FIELD: technological processes. SUBSTANCE: present invention relates to a process of the production of at least one alkoxyhydroxybenzaldehyde ("AHBA") which can be used as a flavor or perfume, and also as an intermediate from at least one hydroxyphenol ("HP"). Method includes the step of forming at least one alkoxyphenol ("AP") and alkyl alkoxyphenol ("AAP") and the step of separating (S) AP from AAP, the separation step (S) being carried out before obtaining AHBA, the AHBA compound is prepared by attaching an aldehyde group to the AP compound by condensation with glyoxylic acid, followed by oxidation of the resulting compound, and the separation step (S) is carried out before oxidation to form an AHBA compound. Invention also relates to a method for separating guaiacol (GA) and/or gvetol (GE) from a mixture containing GA and/or GE and a process for synthesizing at least one AP in the vapor phase. EFFECT: proposed method makes it possible to obtain AHBA with high purity and good yield with high conversion of HP. 17 cl, 4 dwg, 3 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 648 044 C2 (51) МПК C07C 45/54 (2006.01) C07C 47/575 (2006.01) C07C 47/58 (2006.01) C07C 51/367 (2006.01) C07C 65/21 (2006.01) C07C 41/01 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА C07C 41/42 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ C07C 43/23 (2006.01) (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C07C 45/54 (2006.01); C07C 51/367 (2006.01); C07C 41/01 (2006.01); C07C 41/42 (2006.01) (21)(22) Заявка: 2015106362, 12.07.2013 12.07.2013 (73) Патентообладатель(и): РОДИА ОПЕРАСЬОН (FR) Дата регистрации: 22.03.2018 26.07.2012 FR 1257280 (43) Дата публикации заявки: 20.09.2016 Бюл. № 26 (45) Опубликовано: 22.03.2018 Бюл. № 9 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 26.02.2015 2664266 А, 10.01.1992. H.-R. Bjorsvik et al., High Selectivity in the Oxidation of Mandelic Acid Derivatives and in O-Methylation of Protocatechualdehyde: New ...

A process for producing unsaturated aldehyde and carboxylic acid

각 반응관의 원료 가스 입구측에 안티몬-함유 비스무트 몰리브데이트계 복합 산화물이 충전되고 가스 출구측에는 안티몬-비함유 비스무트 몰리브데이트계 복합 산화물 촉매가 충전되어 있는 다수의 관을 포함하는 고정층 다관식 반응기를 사용하여, 이소부틸렌 또는 3급 부탄올을 분자상 산소로 기상 촉매적 산화 반응시킴으로써 불포화 알데히드 및 불포화 카르복실산을 제조하는 방법이 제공된다. 상기 방법을 수행함으로써, 반응기에서의 뜨거운 스팟의 발생을 억제하고 촉매의 수명을 연장시키면서 불포화 알데히드 및 불포화 카르복실산을 높은 수율로 생산할 수 있다. A fixed bed multi-tubular system comprising a plurality of tubes filled with an antimony-containing bismuth molybdate-based composite oxide at the inlet side of each reaction tube and an antimony-free bismuth molybdate-based composite oxide catalyst at the gas outlet side. Using a reactor, a method is provided for producing unsaturated aldehydes and unsaturated carboxylic acids by vapor phase catalytic oxidation of isobutylene or tert-butanol with molecular oxygen. By carrying out the process, unsaturated aldehydes and unsaturated carboxylic acids can be produced in high yields while suppressing the occurrence of hot spots in the reactor and extending the life of the catalyst. 기상 촉매 산화 반응, 몰리브덴, 비스무트, 안티몬, 고정층 다관식 반응기, 알데히드, 카르복실산, 불포화, 스팟, 이소부틸렌, 3급 부탄올, 제조 방법 Gas phase catalytic oxidation, molybdenum, bismuth, antimony, fixed bed multi-tubular reactor, aldehyde, carboxylic acid, unsaturated, spot, isobutylene, tert-butanol, production method

Method for producing 1,3-dihydroxyacetone through catalytic oxidation with supported gold catalyst

本发明公开了一种负载型金催化剂催化氧化甘油生产1,3-二羟基丙酮的方法，该方法以甘油水溶液和氧气作为原料，以ZnO、铜铝水滑石或尖晶石负载金为催化剂，在无碱的条件下，实现了甘油通过氧化方式向1,3-二羟基丙酮的高选择性转化。本发明方法在无碱条件下进行，对反应设备的要求低，投资小；催化剂制备工艺简单，反应原料易得，反应过程温和，对环境友好，无污染，并且催化剂具备回收方便、寿命长等优点，具有良好的工业前景。

Process for the preparation of carbonyl compounds with a carbonyl group attached to the aromatic ring

The present invention relates to a process for the preparation of aromatic carbonyl compound with carbonyl group attached to its aromatic ring, particularly relates to a process for the preparation of aromatic carbonyl compound with carbonyl group attached to its aromatic ring, by oxidizing with molecular oxygen the methylene or alcoholic group attached to aromatic ring of an aromatic compound, using a polyoxotnetallate(s) anion exchanged hydrotalcite catalyst.

A catalyst useful for the gas phase oxidation of alkanes, alkenes or alcohols to unsaturated aldehydes or carboxylic acids

A catalyst useful for oxidation reactions is disclosed. The catalyst is useful for the gas phase oxidation of alkanes, propylene, acrolein, or isopropanol to unsaturated aldehydes or carboxylic acids.

Metal-free catalytic oxidation system, catalytic oxidation method, and method for producing benzoic acid derivatives

【課題】金属触媒の流出による環境汚染を回避し、同時に生産効率の向上を図った、無金属触媒酸化システムを提供する。【解決手段】本発明は、原料送入装置と、管式反応器４と、管式反応器４に間接的に取付けられる複数個のベンチュリノズル３と、連続的管式フィルタ５と、連続的管式フィルタ５の固相送出端に接続される固相物送出装置と、連続的管式フィルタ５の液相送出端に接続される反応液中間溝８とを含んでおり、ベンチュリノズル３の送出端に低圧アリアが形成され、酸素送入口が前記低圧アリアに対向していることを特徴とする無金属触媒酸化システムである。【選択図】図１ PROBLEM TO BE SOLVED: To provide a metal-free catalytic oxidation system which avoids environmental pollution due to outflow of a metal catalyst and at the same time improves production efficiency. According to the present invention, a raw material feeding device, a tubular reactor 4, a plurality of Venturi nozzles 3 indirectly attached to the tubular reactor 4, a continuous tubular filter 5, and a continuous tube reactor 5 are provided. The Venturi nozzle 3 includes a solid phase product delivery device connected to the solid phase delivery end of the tubular filter 5 and a reaction liquid intermediate groove 8 connected to the liquid phase delivery end of the continuous tubular filter 5. It is a metal-free catalytic oxidation system characterized in that a low-pressure aria is formed at a delivery end and an oxygen inlet faces the low-pressure aria. [Selection diagram] Fig. 1

Non-noble metal solid catalyst for glycerol oxidation, preparation method and application

本发明提供了一种用于甘油氧化的非贵金属固体催化剂、制备方法及应用，步骤如下：将SiO 2 载体和去离子水加入高压釜中，高压釜中温度达到374.15℃以上，压力为22.15~30 Mpa时加入铁前驱体水溶液和碱液，反应得到FeO x /SiO 2 催化剂。本发明超临界流体沉积技术形成的活性组分成核速度快、分散均匀，成核率高，能量消耗低且整个过程无需有机溶剂的参与，环保性好，是实现可持续发展战略所提倡的“绿色化学”的有效途径。本发明固定床反应器上甘油转化率大于95％且二羟基丙酮选择性高达80％以上。

Benzophenone and manufacture

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

A method for preparing glyoxal from aldose

本发明公开了一种由醛糖制备乙二醛的方法。该方法包括如下步骤：在氧气存在下，使醛糖在钼酸盐催化剂的作用下进行氧化反应，得到乙二醛。本发明首次提出了一种非常廉价、高效的以醛糖为原料生产乙二醛的方法。该方法反应条件温和，活性高，溶剂回收率高；副产物量很少，目标产物收率高达80％；催化剂廉价易得，稳定性好，以分子氧作为氧化剂，绿色环保；且该方法对设备要求很低，设备投资小，具有十分重要的应用价值。

Method of producing almond aromatic compounds and aromatic aldehyde compounds

FIELD: chemistry. SUBSTANCE: invention relates to a method of producing an aromatic compound(s) carrying at least one almond -CHOH-COOH group, which includes condensation reaction of at least one phenol or substituted phenol with glyoxylic acid monohydrate (CHO-CO 2 H, H 2 O), wherein said condensation reaction is carried out essentially in the absence of any acid or any base added to the reaction medium, wherein said substituted phenols correspond to the following formula (I), where in said formula: R denotes one or more substitutes, identical or different, x, number of substituents on the ring, is an integer in range from 1 to 4, when x is greater than 1, two groups R, located on two adjacent carbon atoms, together with carbon atoms, which carry them, can form a saturated, unsaturated or aromatic ring containing 5–7 atoms and possibly containing one or more heteroatoms. Condensation reaction is followed by an oxidation reaction to form an aromatic aldehyde. EFFECT: disclosed is a method of producing almond aromatic compounds and aromatic aldehyde compounds. 17 cl, 1 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 712 754 C2 (51) МПК C07C 51/367 (2006.01) C07C 45/39 (2006.01) C07C 47/575 (2006.01) C07C 47/58 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C07C 51/367 (2019.08); C07C 45/39 (2019.08); C07C 47/575 (2019.08); C07C 47/58 (2019.08) (21)(22) Заявка: 2016123378, 14.11.2014 (24) Дата начала отсчета срока действия патента: Дата регистрации: 31.01.2020 15.11.2013 FR 1361169 (43) Дата публикации заявки: 18.12.2017 Бюл. № 35 (45) Опубликовано: 31.01.2020 Бюл. № 4 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 15.06.2016 EP 2014/074658 (14.11.2014) (87) Публикация заявки PCT: R U 2 7 1 2 7 5 4 WO 2015/071431 (21.05.2015) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ ПОЛУЧЕНИЯ МИНДАЛЬНЫХ АРОМАТИЧЕСКИХ ...

Process for the preparation of aldehydes and ketones from primary and secondary alcohols

Die vorliegende Erfindung beschreibt ein Verfahren zur Herstellung von Aldehyden und Ketonen aus günstig zugänglichen primären und sekundären Alkoholen durch Oxidation mit Luftsauerstoff oder reinem Sauerstoff mittels eines Katalysatorsystems, umfassend freie Nitroxylradikalderivate. The present invention describes a process for the preparation of aldehydes and ketones from conveniently accessible primary and secondary alcohols by oxidation with atmospheric oxygen or pure oxygen by means of a catalyst system comprising free nitroxyl radical derivatives.

A method of preparing glyoxal from aldose

本发明公开了一种由醛糖制备乙二醛的方法。该方法包括如下步骤：在氧气存在下，使醛糖在钼酸盐催化剂的作用下进行氧化反应，得到乙二醛。本发明首次提出了一种非常廉价、高效的以醛糖为原料生产乙二醛的方法。该方法反应条件温和，活性高，溶剂回收率高；副产物量很少，目标产物收率高达80％；催化剂廉价易得，稳定性好，以分子氧作为氧化剂，绿色环保；且该方法对设备要求很低，设备投资小，具有十分重要的应用价值。

Photocatalytic composite material Cr for degrading gaseous pollutants2O3-SnO2And preparation method and application thereof

本发明属于光催化材料技术领域，具体公开了一种降解气态污染物的光催化复合材料Cr 2 O 3 ‑SnO 2 及其制备方法和应用，制备方法如下：将一定摩尔比的铬盐和锡盐在去离子水中混合，持续搅拌0.5‑3h，烘干，得到催化剂的前驱体。将前驱体放置于坩埚内，在惰性气体或者空气条件下进行煅烧，煅烧的温度为300‑800℃，煅烧时间为1‑4h，自然冷却至室温，研磨后得到复合光催化材料Cr 2 O 3 ‑SnO 2 。利用本发明的方法制备的Cr 2 O 3 ‑SnO 2 复合光催化剂，能够使得电子空穴对有效分离，降低电子空穴的复合率，进而可以有效的提高光催化活性，达到高效地降解气态污染物的目的。

Butanone preparing and refining system

本发明提供的是一种丁酮的制备与精制系统，其包括通过管道连接的第一预热器、分离器、压缩机、第二预热器、加氢反应器、高压缓冲罐、低压缓罐、粗醇分离塔、仲丁醇精制塔、乙醇精制塔、第三预热器、脱氢反应器、脱氢反应器缓冲罐、丁酮干燥塔、回流罐、丁酮精制塔。本发明所述的丁酮制备与精制系统中，由乙酸仲丁酯加氢制备的仲丁醇的反应中由于原料纯度高、温度分布均匀、物料停留时间控制严格，因此在乙醇脱水塔中不需要格外的共沸剂，仅用副产物与水的共沸作用就可将乙醇中的水分脱除；原料转化率和仲丁醇选择性比较高，副反应少，容易精制，两反应器的副产重组分是在仲丁醇精制塔塔釜中采出。

Process for production of acrylic acid

A process for production of acrylic acid includes preparing a product gas mixture by a catalytic gas-phase oxidation of a C 3 precursor; cooling and contacting the cooled product gas mixture in an absorption column having at least two cooling loops in countercurrent with an absorbent to obtain an absorbate A, containing the absorbent and absorbed acrylic acid; condensing a high boiler fraction of the product gas mixture in a first cooling loop; condensing a low boiler fraction of the product gas mixture in a second cooling loop; maintaining a temperature of the absorbate A in the second cooling loop at a value of at least 56° C.; removing an acid water stream comprising glyoxal from the absorption column at a side take-off located above the second cooling loop; and removing a stream F of absorbate A from the absorption column at a side take-off, located at a height of the absorption column between the first cooling loop and the second cooling loop.

METHOD FOR PRODUCING ALMOND AROMATIC COMPOUNDS AND AROMATIC ALDEHYDE COMPOUNDS

А 2016123378 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) ® 4 1) зала «за аа КО О Чаша: — А (51) МПК С07С 51/367 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016123378, 14.11.2014 (71) Заявитель(и): РОДИА ОПЕРАСЬОН (ЕК) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): 15.11.2013 ЕК 1361169 ГАРЕЛЬ Лоран (ЕВ), , . САРРАЗЕН Флави (ЕК), (43) Дата публикации заявки: 18.12.2017 Бюл. № 35 БАК Оливье (ЕК), (85) Дата начала рассмотрения заявки РСТ на ОЛИВОН Кевин (ЕК), национальной фазе: 15.06.2016 ПЮШО Матье (ЕК) (86) Заявка РСТ: ЕР 2014/074658 (14.11.2014) (87) Публикация заявки РСТ: УГО 2015/071431 (21.05.2015) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ ПОЛУЧЕНИЯ МИНДАЛЬНЫХ АРОМАТИЧЕСКИХ СОЕДИНЕНИЙ И АРОМАТИЧЕСКИХ АЛЬДЕГИДНЫХ СОЕДИНЕНИЙ (57) Формула изобретения 1. Способ получения ароматического(их) соединения(ий), несущих по меньшей мере одну миндальную группу -СНОН-СООН, включающий в себя реакцию конденсации по меньшей мере одного ароматического соединения с глиоксиловой кислотой или ее производными, причем указанную реакцию конденсации осуществляют, по существу, в отсутствие какой-либо кислоты или какого-либо основания, добавляемой(ого) в реакционную среду. 2. Способ получения ароматического(их) соединения(ий)по п. 1, в котором указанное ароматическое соединение, применяемое в качестве реагента в реакции конденсации, выбрано среди замещенных бензолов, фенола и замещенных фенолов, гетероциклических ароматических соединений, полициклических ароматических соединений. 3. Способ получения ароматического(их) соединения(ий)по п. 2, в котором указанные замещенные фенолы отвечают следующей формуле (Г: Стр.: 1 па 81$5$52С1910С У А 2016123378 ко в указанной формуле К обозначает один или несколько заместителей, одинаковых или разных, х, число заместителей на цикле, представляет собой целое число в интервале от 1 до 4, когда х больше 1, две ...

Catalytic oxidation of but-3-ene-1,2-diol

FIELD: chemistry.SUBSTANCE: invention relates to a method for synthesis of at least one compound of formula (I) or one of its salts, in which R is a group of COOH, CHOH or CHO, where but-3-ene-1,2-diol (BDO) is subjected to oxidation in the presence of a catalyst containing an active phase based on at least one noble metal selected from palladium, gold, silver, platinum, rhodium, osmium, ruthenium and iridium, and a substrate containing alkaline sites and selected from hydrotalcites (HT), brucites, hydroxyapatite Ca(PO)(OH), tricalcium phosphate Ca(PO), calcium hydrophosphate CaHPO(0–2) HO, calcium diphosphate CaPO, octaculphosphate CaH(PO).5HO, tetrapotassium phosphate Ca(PO)O, amorphous calcium phosphates Ca(PO).nHO, oxides, hydroxides, carbonates, bicarbonates, phosphates, diphosphates and hydrophosphates of calcium, cesium, lithium, rubidium, potassium, magnesium, barium, cerium, lanthanum, aluminum, zinc, copper and their mixtures.Formula (I).EFFECT: invention also relates to use of said reaction for producing bio-accessible methionine compounds used, in particular, for feeding animals.11 cl, 2 dwg, 3 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 707 078 C2 (51) МПК C07C 45/37 (2006.01) C07C 319/18 (2006.01) C07C 323/22 (2006.01) C07C 323/52 (2006.01) C07C 49/24 (2006.01) C07C 49/258 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА C07C 51/235 (2006.01) ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ C07C 59/76 (2006.01) (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C07C 45/37 (2019.08); C07C 319/18 (2019.08); C07C 323/22 (2019.08); C07C 323/52 (2019.08); C07C 49/24 (2019.08); C07C 49/258 (2019.08); C07C 51/235 (2019.08); C07C 59/76 (2019.08) (21)(22) Заявка: 2017122232, 07.12.2015 07.12.2015 Дата регистрации: 22.11.2019 Приоритет(ы): (30) Конвенционный приоритет: 05.12.2014 FR 1461964 (43) Дата публикации заявки: 09.01.2019 Бюл. № 1 (45) Опубликовано: 22.11.2019 Бюл. № 33 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 05.07.2017 (56) Список документов, ...

Production method of hydrogen peroxide

Catalytic oxidation of 3-butene-1, 2-diol (BDO)

本发明涉及下式(I)化合物或其盐之一的合成方法， 其中式(I)的R表示COOH，CH 2 OH或CHO基团，所述方法包括在催化剂存在下使3‑丁烯‑1,2‑二醇(BDO)进行氧化的步骤，所述催化剂包含基于至少一种贵金属的活性相，所述贵金属选自钯，金，银，铂，铑，锇，钌和铱以及含碱性载体的载体。本发明还涉及该反应在制备生物可利用的甲硫氨酸化合物的应用，特别是用于动物营养。

PROCESS FOR PREPARATION OF PROTOCATECHIC ALDEHYDE AND ITS DERIVATIVES

L'invention se rapporte à un procédé de préparation de l'aldéhyde protocatéchique ou d'un 3-alcoxy-4-hydroxybenzal-déhyde. Selon l'invention, on fait réagir le pyrocatéchol ou un 2-alcoxyphénol avec l'acide glyoxylique milieu basique aqueux, en présence d'un catalyseur renfermant un ou plusieurs composés choisis parmi l'oxyde d'aluminium, la silice et l'oxyde d'aluminium hydraté, en une quantité qui n'est pas inférieure à 0,01 g pour 1 g du pyrocatechol ou du 2-alcoxyphénol de départ, à une température de 0 à 50 degrés C, puis on oxyde le mélange réactionnel ainsi obtenu, dans un milieu basique aqueux. Applications : fabrication de produits intermédiaires dans l'industrie pharmaceutique ou en parfumerie. The invention relates to a process for the preparation of protocatechuic aldehyde or a 3-alkoxy-4-hydroxybenzaldehyde. According to the invention, the pyrocatechol or a 2-alkoxyphenol is reacted with glyoxylic acid in aqueous basic medium, in the presence of a catalyst containing one or more compounds chosen from aluminum oxide, silica and oxide. hydrated aluminum, in an amount not less than 0.01 g per 1 g of the starting pyrocatechol or 2-alkoxyphenol, at a temperature of 0 to 50 degrees C, then oxidizing the reaction mixture thus obtained , in a basic aqueous medium. Applications: manufacture of intermediate products in the pharmaceutical or perfume industry.

PROCESS FOR CATALYZING HYDROGEN TRANSFER REACTIONS

Production of hydrogen peroxide

Hydrogen peroxide is produced by a process which uses solid, insoluble, supported anthraquinone as catalyst. The catalyst is reduced to supported anthrahydroquinone using a hydrogen-donating organic substrate such as an alcohol, followed by reaction with oxygen, to regenerate anthraquinone and to form hydrogen peroxide, which can be solvent extracted from the solid catalyst.

Method for the selective production of dihydroxyacetone from glycerin, and method for the production of a metal catalyst used for the selective oxidation of glycerin

The invention relates to a method for the oxidation of a secondary hydroxy group of an organic compound to a keto group in the presence of at least one primary hydroxy group of said organic compound, especially for producing dihydroxyacetone (DHA) from glycerin. According to said method, the organic compound, particularly the glycerin, is reacted with oxygen in the presence of a supported metal catalyst, especially a multi-metal catalyst, comprising gold and platinum and other optional metals catalyzing oxidation of said organic compound, particularly glycerin, in an alkaline aqueous system so as to form an organic compound containing a keto group and at least one primary hydroxy group, especially of dihydroxyacetone. Preferably, the supported oxidation catalysts used in said method are obtained by carrying out the following steps: a) at least one metal salt and/or at least one acid of a metal which can catalytically oxidize hydroxyl groups to aldehyde groups or keto groups is reduced using at least one reducing stabilizer according to the Sol method in an alkaline aqueous system; b) a supporting material is contacted with the alkaline aqueous system and supports of the supporting material; c) the solid moiety is separated from the liquid portion; d) the separated solid moiety is washed; and e) the washed solid moiety is tempered. The invention further relates to the supported oxidation catalysts obtained according to the disclosed method.

Process for the preparation of frambinone

Titre : Procédé de préparation de frambinone La présente invention concerne un procédé de préparation de frambinone comprenant une étape de condensation du phénol et de l’acide glyoxylique. Pas de figure pour l’abrégé Title: Process for the preparation of frambinone The present invention relates to a process for the preparation of frambinone comprising a step of condensing phenol and glyoxylic acid. No figure for the abstract

PROCESS FOR THE PREPARATION OF HYDROXYAROMATIC ALDEHYDE

PROCESS FOR THE PREPARATION OF CARBONYL COMPOUNDS BY OXIDIZING DEHYDROGENATION OF VAPOR PHASE C1-C4 ALCOHOLS

LA PRESENTE INVENTION CONCERNE UN PROCEDE DE PREPARATION DE COMPOSES CARBONYLES PAR DESHYDROGENATION OXYDANTE D'ALCOOLS EN C-C EN PHASE VAPEUR. CE PROCEDE EST MIS EN OEUVRE A UNE TEMPERATURE DE 500-700C, EN PRESENCE D'UN CATALYSEUR A L'ARGENT, QUI EST DE L'ARGENT DEPOSE SUR UN SUPPORT AYANT UNE STRUCTURE CRISTALLINE CONTENANT DE L'OXYDE D'ALUMINIUM ET DE L'OXYDE DE SILICIUM SOUS FORME DE CRISTOBALITE. CE PROCEDE EST APPLICABLE DANS LA PRODUCTION DU FORMALDEHYDE, DE L'ACETONE ET DE LA METHYLETHYLCETONE. THE PRESENT INVENTION CONCERNS A PROCESS FOR PREPARING CARBONYL COMPOUNDS BY OXIDIZING DEHYDROGENATION OF C-C ALCOHOLS IN THE VAPOR PHASE. THIS PROCESS IS CARRIED OUT AT A TEMPERATURE OF 500-700C, IN THE PRESENCE OF A SILVER CATALYST, WHICH IS SILVER DEPOSITED ON A SUPPORT HAVING A CRYSTALLINE STRUCTURE CONTAINING ALUMINUM OXIDE AND L 'SILICON OXIDE IN THE FORM OF CRISTOBALITE. THIS PROCESS IS APPLICABLE IN THE PRODUCTION OF FORMALDEHYDE, ACETONE AND METHYLETHYLCETONE.

Patent FR2368458B1

Patent FR2461693B1

Solid oxidation catalysts

CATALYTIC OXIDATION OF BUT-3-ENE-1,2-DIOL

Regeneration of catalyst selectivity - in oxidn processes by treatment with an excess of oxygen

Catalyst is regenerated to recover its selectivity by contacting it with an oxygen excess above 0.35 mole/mole of the cpd. to be oxidised (I) over the stoichiometric amt. for a period sufficient to regain or approach the original selectivity. Oxygen in air is used or a mixt. with (I) in molar ratio 4/1 (pref. 1.35/1-1.5/1). Regeneration takes 1-3 days. Catalyst e.g. for oxidising ethylene glycol to glyoxal may be Cu activated by Gp. Vb elements (Ge, Sn, Pb) and/or Gp. Vb elements (N, P, As), e.g. Cu/P contg. 2-4% P.

1,7-OCTADIENE-3-ONE AND ITS PREPARATION

Octadiénone et son procédé de préparation. Ce composé est la 1,7-octadiène-3-one répondant à la formule : Octadienone and its preparation process. This compound is 1,7-octadien-3-one corresponding to the formula:

Solid catalyst for glycerol oxidation and preparation method thereof

本发明公开了一种用于甘油氧化的固体催化剂及其制备方法，属于催化和精细有机化工技术领域。本发明采用铋盐、贵金属化合物、有机前驱体、氮源通过机械混合‑焙烧‑还原的方法制备出一种多孔碳封装双金属结构的固体催化剂，本发的优点在于，催化剂制备方法简便易于操作，生产成本低廉，甘油转化率(>80％)和甘油选择性高(>90％)，反应体系反应条件温和，且催化剂可回收和重复使用，可望成为极具竞争力的甘油转化合成二羟基丙酮的工业化生产路线。

Method for effective reaction between oxygen and organic substance utilizing regenerable hydroperioxide oxidant

A method of effecting a reaction between oxygen and an organic substance comprising the stages of: a. forming a reaction mixture comprising an N-alkylpyrrolidinone, at least one organic substance capable of reaction with oxygen and a hydroperoxide decomposition catalytically effective amount of a transition metal oxidation catalyst under a partial pressure of oxygen of at least about 16 psig, the molar ratio of organic substance to N-alkylpyrrolidinone being at least about 1:100; b. subjecting the reaction mixture to conditions such that an oxidation reaction occurs, whereby: (1) at least a portion of the N-alkylpyrrolidinone is oxidized, in situ, to the corresponding hydroperoxide; (2) the hydroperoxide is subsequently decomposed by the catalytic action of the transition metal oxidation catalyst to the corresponding N-alkylsuccinimide, the decomposition resulting in the production of active oxygen which reacts with the organic substance; c. after separating the reaction product of oxygen and the organic substance, contacting the product of stage b with hydrogen and a catalytically effective amount of a hydrogenation catalyst for a time and under reaction conditions effective to hydrogenate the N-alkylsuccinimide to form the corresponding N-alkylpyrrolidinone; and d. recycling the N-alkylpyrrolidinone produced in stage c to stage a.

Supported noble metal-comprising catalyst for oxidative dehydrogenation or epoxidation.

Los catalizadores que comprenden metal noble soportado que se pueden obtener mediante a1) aplicación de un compuesto de metal noble, opcionalmente en mezcla con aditivos actuando como promotores, a un material de apoyo, luego secar y a2) aplicación de un agente reductor a un material de apoyo, luego secar, donde los pasos a1) y a2) se repiten simultáneamente o en turnos alternados, o donde cualquiera de los compuestos se aplica totalmente y luego el otro se aplica en su totalidad, b) opcionalmente después del secado del producto resultante, y c) posterior calcinación, su uso, especialmente para la deshidrogenación oxidativa y un proceso para producirla.

Catalyst system for aerobic oxidation of primary and secondary alcohols

The present invention relates to a process of oxidation of alcohols selectively to aldehydes or ketones with molecular oxygen using a TEMPO based catalyst, Fe-bipyridyl or Fe-phenantroline co-catalyst and N-bromosuccinimide promoter in acetic acid solvent. The oxidation takes places at high rates and high aldehyde selectivity at temperatures in the range 45-50° C. and oxygen or air pressures of 0-15 psi. The alcohol conversion of 95-100% and aldehyde selectivity higher than 95% are achieved over 3-4 hours reaction time. Aldehydes such as 3,3-dimethyl-1-butanal can be produced efficiently using the present invention.

PREPARATION OF METAL ELEMENTS

Process for the preparation of 4-hydroxy-4-alkyl-2,5- cyclohexanedien-1-one

Procédé de préparation d'hydroxy-4 alcoyl-4 cyclohexadiène-2,5 one-1 par oxydation d'un alcoyl-4 phénol en phase liquide par l'oxygène moléculaire en présence d'un complexe du cobalt et d'un cocatalyseur pris dans le groupe des amines, des phosphines et des phosphites.

Method for preparing ruthenium-carrying alumina and method for oxidizing alcohol

A ruthenium-carrying alumina, which is prepared by suspending alumina in a solution containing trivalent ruthenium and adding a base to the suspension, is provided. This ruthenium-carrying alumina is useful as a catalyst for oxidizing alcohols by contacting the alcohols with molecular oxygen, and can be used for oxidizing the alcohols at a high conversion to produce ketones, aldehydes, carboxylic acids, etc. with good productivity.

Process for the synthetic preparation of camphor, starting from terpenes

A kind of synthetic method of diacetyl

本发明公开了一种丁二酮的合成方法，将水杨醛衍生物与二胺类化合物反应生成席夫碱配体，再与过渡金属盐溶液配位制备金属席夫碱配合物，然后通过F‑C酰基化反应将金属席夫碱配合物固载在含有酰基的聚苯乙烯微球载体上制备成固载化的催化剂，最后以乙偶姻为原料加入所述固载化的催化剂通入空气催化氧化得到丁二酮。本发明通过F‑C酰基化反应将金属席夫碱配合物固载在含有酰基的聚苯乙烯微球载体上，通过化学键提高了固载金属席夫碱配合物的固载率，通过固载化的催化剂得到的产品后处理简单，产率高；而且本发明所采用的原料为乙偶姻，对于生产乙偶姻的企业来说，降低了生产成本，增加了产品多样性，能够提高企业的竞争力。

High shear rotary fixed bed reactor

A reactor comprising at least one contact surface made from, coated with, or impregnated by a catalyst, wherein the contact surface comprises a sintered metal or a ceramic, and wherein the reactor is configured to subject a reactant stream to shear. A system for carrying out a heterogeneously catalyzed reaction, the system comprising a reactor as described above and a pump configured for delivering reactants to the at least one reactor. A method for carrying out a heterogeneously-catalyzed reaction by introducing reactants into a reactor comprising at least one contact surface made from, coated with, or impregnated by a catalyst under conditions which promote production of a desired product, wherein the contact surface comprises a sintered metal or a ceramic, and forming a dispersion of reactants within the reactor, wherein the dispersion comprises droplets or gas bubbles of reactant with an average diameter of less than about 5 μm.

NEW DERIVATIVES OF 1,5-DIMETHYL-BICYCLO 3,2,1 OCTANE, THE PREPARATION OF THESE COMPOUNDS AND THE USE THEREOF AS PERFUME RAW.

Hydrated zirconium oxide modified with organo-silicon compound and catalysts for alcohol oxidation and lactone production

Hydrated zirconium oxide modified with an organo-silicon compound, wherein 50-90 % of the hydroxyl groups present on the surface of hydrated zirconium oxide are substituted by said compound. The modified oxide can be efficiently utilized in the oxidation of an alcohol into an aldehyde or ketone and in the production of a lactone.

Process for the preparation of carbonyl compounds.

Method for preparing ruthenium-carrying alumina and method for oxidizing alcohol

A method for preparing a ruthenium-carrying alumina which comprises suspending alumina in a solution containing a tri-valent ruthenium, and then adding a base to the resultant suspension. A ruthenium-carrying alumina is useful as a catalyst for use in contacting an alcohol with molecular oxygen to oxidize the alcohol, and can be used for oxidizing an alcohol at an enhanced conversion and producing a ketone, an aldehyde, a carboxylic acid and the like with improved productivity.

Process for producing aldehydes

A process for producing an aldehyde which comprises reacting a 1,2-diol (vic-diol) with oxygen in the presence of a ruthenium catalyst carried on a support to thereby oxidatively cleave the bond between two carbon atoms each having a hydroxyl group attached thereto, thus forming the corresponding aldehyde. The support is exemplified by active carbon, etc. As the catalytic component to be carried on the support, use can be made of organic ruthenium complexes such as dichlorotris(triphenylphosphine) ruthenium (II). By using this process, a 1,2-diol is oxidatively cleaved and thus the corresponding aldehyde can be effectively obtained.

PROCESS FOR THE PREPARATION OF ALKOXYHYDROXYBENZALDEHYDE SUBSTANTIALLY FREE OF ALKYL-ALKOXYHYDROXYBENZALDEHYDE

Method for producing terpene aldehyde and terpene ketone

Gold catalyst for selective oxidation

A supported gold catalyst is used for selective oxidation. In particular, an alcohol or ketone is oxidized to produce the corresponding carboxylic acid, an alcohol is oxidized to produce the corresponding ketone, and xylene is oxidized to produce the corresponding mono-alcohol or di-alcohol.

Process for preparing a hydroxyaromatic aldehyde

La présente invention a pour objet un procédé de préparation d'un aldéhyd e hydroxyaromatique par oxydation d'un dérivé mandélique correspondant. Le p rocédé de préparation selon l'invention est caractérisé par le fait que l'on conduit l'oxydation du dérivé mandélique correspondant, en milieu basique e t en présence d'un système catalytique comprenant au moins deux éléments mét alliques. The present invention relates to a process for preparing a hydroxyaromatic aldehyde by oxidation of a corresponding mandelic derivative. The preparation method according to the invention is characterized in that the oxidation of the corresponding mandelic derivative is carried out in a basic medium and in the presence of a catalytic system comprising at least two metallic elements.

"process for preparing primary and secondary alcohol aldehydes and ketones"

Method for production of oxygen-containing organic compound

A novel method for the production of an oxygen-containing organic compound is provided. The production of an oxygen-containing organic compound is attained by oxidizing an olefin, an alcohol, or an aldehyde by catalyzing thereof with a molecular oxygen-containing gas in the presence of a catalyst formed of a polyoxo metalate substituted with a divalent transition metal cation.

Preparation of hydroxyaromatic aldehydes

Hydroxyaromatic aldehydes are prepared by oxidation of a corresponding mandelic derivative carried out in a basic medium and in the presence of a catalytic system containing at least two metal elements.

Method for enhancing an oxidation reaction

ABR?G? DESCRIPTIF Procédé pour améliorer une réaction d'oxydation ménagée entre au moins un réactif et de l'oxygène, selon lequel on fait réagir au moins un réactif avec de l'oxygène ou un gaz contenant de l'oxygène, formant un mélange réactionnel, en présence d'au moins un tiers gaz introduit dans ledit mélange réactionnel et choisi parmi le méthane, l'éthane et l'hélium, puis, le cas échéant, on traite le produit résultant de la réaction d'oxydation en vue de l'obtention d'un produit final. ABR? G? DESCRIPTION Process for improving an oxidation reaction between at least one reactant and oxygen, according to which at least one reactant is reacted with oxygen or an oxygen-containing gas, forming a reaction mixture, by presence of at least one third gas introduced into said reaction mixture and chosen from methane, ethane and helium, then, if necessary, the product resulting from the oxidation reaction is treated with a view to obtaining of a final product.

METHOD FOR PRODUCING CARBONYL COMPOUNDS

Method for preparing ruthenium-carrying alumina and method for oxidizing alcohol

Catalytic oxidation of but-3-ene-1,2-diol

本發明係有關於一種合成具有下列化學式(I)之一化合物或其鹽之方法， □其中，R係一COOH、CH2OH或CHO基團，包含依據其而使丁-3-烯-1,2-二醇(BDO)接受於一催化劑存在中之氧化的步驟，該催化劑包含以至少一選自鈀、金、銀、鉑、銠、鋨、釕，及銥之貴金屬為主之一活性相，及包含鹼性位置之一載體。 本發明亦有關於此反應於製備特別是用於動物營養之甲硫胺酸的生物可利用化合物之應用。

Method for producing oxide using β-manganese dioxide

効率的な酸化物の製造を目的として、原料化合物を酸素の存在下で酸化し、酸化物を製造する方法であって、結晶構造がβ型である二酸化マンガンの存在下で、原料化合物を酸化することを特徴とする酸化物の製造方法を提供する。 A method for producing an oxide by oxidizing a raw material compound in the presence of oxygen for the purpose of efficient production of an oxide, and oxidizing the raw material compound in the presence of manganese dioxide having a β-type crystal structure. Provided is a method for producing an oxide, which is characterized by the above.

A process for revamping a plant for the production of cyclohexanone

페놀 수소화로부터의 반응 생성물을 포함하는 제 2 혼합물로부터 사이클로헥산온을 분리하기에 적합한 제 2 화학 공장의 건설 방법이 제공되며, 이때 상기 방법은, (a) 사이클로헥산 산화로부터의 반응 생성물을 포함하는 제 1 혼합물로부터 사이클로헥산온을 분리하기에 적합한 제 1 화학 공장을 제공하는 단계; (b) 상기 사이클로헥산을 탑정 증류하기에 적합한 증류 칼럼(C), 상기 사이클로헥산 산화 유닛(A) 및 상기 열 회수 유닛(B)을 상기 제 1 화학 공장으로부터 불능화시키는 단계를 포함하고, 상기 제 1 화학 공장은, (i) 사이클로헥산을 탑정 증류하기에 적합한 증류 칼럼(C); (ii) 사이클로헥산온을 탑정 증류하기에 적합한 증류 칼럼; (iii) 사이클로헥산 산화에 적합한 사이클로헥산 산화 유닛(A); 및 (iv) 사이클로헥산 산화에 적합한 사이클로헥산 산화 유닛으로부터의 오프-가스로부터 열을 회수하기에 적합한 열 회수 유닛(B)을 포함하고, 상기 제 2 화학 공장은, 상기 제 1 화학 공장으로부터의 재사용된 사이클로헥산온을 탑정 증류하기에 적합한 증류 칼럼(F)을 포함하고, 상기 제 1 화학 공장 및 상기 제 2 화학 공장 각각은, 사이클로헥산온보다 더 낮은 비점을 갖는 성분을 탑정 증류하기에 적합한 증류 칼럼(E); 사이클로헥산올 및 사이클로헥산온을 4 이상:1의 중량 비로 포함하는 혼합물을 탑정 증류하기에 적합한 증류 칼럼(G); 및 사이클로헥산올에서 사이클로헥산온으로의 탈수소화에 적합한 사이클로헥산올 탈수소화 유닛(H)을 포함한다. There is provided a method for the construction of a second chemical plant suitable for separating cyclohexanone from a second mixture comprising a reaction product from phenol hydrogenation wherein the process comprises the steps of (a) Providing a first chemical plant suitable for separating cyclohexanone from the first mixture; (b) disabling the distillation column (C), the cyclohexane oxidation unit (A) and the heat recovery unit (B) suitable for overhead distillation of the cyclohexane from the first chemical plant, 1 The chemical plant comprises: (i) a distillation column (C) suitable for overhead distillation of cyclohexane; (ii) a distillation column suitable for overhead distillation of cyclohexanone; (iii) a cyclohexane oxidation unit (A) suitable for cyclohexane oxidation; And (iv) a heat recovery unit (B) suitable for recovering heat from the off-gas from a cyclohexane oxidation unit suitable for cyclohexane oxidation, said second chemical plant having reuse And a distillation column (F) suitable for overhead distillation of the cyclohexanone, wherein each of the first chemical plant and the second chemical plant is a distillation column suitable for distillation of a component having lower boiling point ...

Production of 5-alkoxy-4-hydroxyisophthalaldehyde

Solid-phase-supported transition metal catalysts

A solid-phase-supported transition metal complex catalyst which is represented by the formula (I) (I) (wherein A represents a polystyrene/polyethylene glycol copolymer resin; Q represents lower alkyl, lower alkoxy, or a heterocycle optionally substituted by a halogen atom; L?1 and L2¿ are the same or different and each represents halogeno, acetoxy, trifluoroacetoxy, trifluoromethanesulfonyl, tetrafluoroborate, or π-allyl; and M represents copper, palladium, nickel, cobalt, rhodium, or platinum); and a solid-phase-supported transition metal catalyst which comprises a compound represented by the formula (II) (II) (wherein A and Q have the same meanings as defined above) and supported thereon a transition metal selected among copper, palladium, nickel, cobalt, rhodium, and platinum. These catalysts are usable in various reactions, can be used to conduct reactions in an aqueous system, have sufficient catalytic activity even in an oxygen atmosphere, and can be recovered and reused.

Process for preparing mandelic aromatic compounds and aromatic aldehyde compounds

描述了用于制备一种或多种其中至少一个扁桃酸基团‑CHOH‑COOH的芳香族化合物的方法，该方法包括用于缩合至少一种芳香族化合物与乙醛酸或其衍生物的反应，其中所述缩合反应是在基本上不存在添加至该反应介质中的任何酸或任何碱下进行的。该缩合反应之后是氧化反应以获得芳香族醛。

A kind of phase transfer catalyst for cyclohexanol synthesizing cyclohexanone and preparation method thereof

本发明涉及一种用于环己醇氧化合成环己酮反应的相转移催化剂及其制备方法，该方法以氧化石墨烯为载体，首先通过硅烷化反应将3‑氨丙基三甲氧基硅烷固载于氧化石墨烯表面，随后通过固相酸碱反应将磷钨酸固载于氧化石墨烯表面，即得所需的相转移催化剂。该催化剂在环己醇氧化合成环己酮的相转移反应中有很好的催化性能，环己醇转化率高达89.2％，环己酮选择性高达95.4％。该催化剂制备过程简单，相转移催化活性高，且复用性能好，产品后处理简单，具有很高的应用价值。

Preparation and the refining system of butanone

本发明提供的是一种丁酮的制备与精制系统，其包括通过管道连接的第一预热器、分离器、压缩机、第二预热器、加氢反应器、高压缓冲罐、低压缓罐、粗醇分离塔、仲丁醇精制塔、乙醇精制塔、第三预热器、脱氢反应器、脱氢反应器缓冲罐、丁酮干燥塔、回流罐、丁酮精制塔。本发明所述的丁酮制备与精制系统中，由乙酸仲丁酯加氢制备的仲丁醇的反应中由于原料纯度高、温度分布均匀、物料停留时间控制严格，因此在乙醇脱水塔中不需要格外的共沸剂，仅用副产物与水的共沸作用就可将乙醇中的水分脱除；原料转化率和仲丁醇选择性比较高，副反应少，容易精制，两反应器的副产重组分是在仲丁醇精制塔塔釜中采出。

Continuous preparation of aldehydes and ketones

Aldehydes and ketones of the general formula I ##STR1## where R 1 is hydrogen or an organic radical of 1 to n carbon atoms and R 2 is a non-aromatic organic radical of 1 to m carbon atoms, (m+n) ranging from 2 to 24 and R 1 and R 2 being combinable to form a 4- to 12-membered ring, are prepared in a continuous manner by oxidizing an alcohol of the general formula II ##STR2## with oxygen or an oxygen-containing gas at elevated temperatures in the gas phase in the presence of a catalyst, by effecting the oxidation by means of a supported catalyst composed of an inert carrier having a smooth surface and from 0.1 to 20% by weight, based on the amount of carrier, of an active layer of copper, silver and/or gold in a tubular reactor or tube bundle reactor where the internal diameter D of the tube or tubes ranges from 10 to 50 mm and the largest diameter d of the coated supported catalysts is subject to the relationship d=from 0.1 to 0.2 D.

Process of making acetone and other ketones

Process for the production of aldehydes and ketones by the catalytic oxidation of alcohols

Process for preparing a hydroxyaromatic aldehyde

La présente invention a pour objet un procédé de préparation d'un aldéhyde hydroxyaromatique par oxydation d'un dérivé mandélique correspondant. Le procédé de préparation selon l'invention est caractérisé par le fait que l'on conduit l'oxydation du dérivé mandélique correspondant, en milieu basique et en présence d'un système catalytique comprenant au moins deux éléments métalliques.

Method for controlling synthesis conditions during molecular sieve synthesis using combinations of quaternary ammonium hydroxides and halides

To control the pressure generated by the decomposition of quaternary ammonium hydroxides during the crystallization of molecular sieve materials at elevated temperatures, to levels below the mechanical limits of the equipment, the present invention substitutes halide salts of the same quaternary ammonium structure directing agent compound for some fraction of the hydroxide compound. In addition, because the quaternary ammonium hydroxides are generally more expensive than the corresponding halides, using a combination of the two reduces the cost of manufacturing the molecular sieve product.

Oxidation processes employing aluminosilicate catalysts and an initiator

OXIDATION CATALYSTS REGENERATION PROCESS