C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides

Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
10/1998
10/29/1998	DE19717076A1 Katalysator und Verfahren zur katalytischen Oxidation von Ethan zu Essigsäure Catalyst and process for the catalytic oxidation of ethane to acetic acid
10/29/1998	DE19717075A1 Verfahren zur Herstellung von Essigsäure in einer Reaktorkaskade A process for the production of acetic acid in a reactor cascade
10/29/1998	DE19716832A1 Enantiomer-enriched 2-hydroxymethyl-acetic acid derivatives
10/28/1998	EP0873984A1 Process for preparing alkyl- and aryl- substituted malonic acids
10/28/1998	EP0873296A1 Process for manufacturing terephthalic acid
10/28/1998	EP0873294A1 Production of levulinic acid from carbohydrate-containing materials
10/28/1998	EP0873289A1 Process for catalytic addition of nucleophiles to alkines or allenes
10/28/1998	EP0703891B1 Process for producing an omega-functionalized aliphatic carboxylic acid
10/28/1998	CN1197083A Bulk dyeing using quinophthalone dyestuffs
10/28/1998	CN1196975A Non-crystalline alloy catalyst containing Ni and B, its prepn. and application
10/28/1998	CN1196974A Process for manufacture of acrylic acid from acrolein by bedox reaction and use of solid mixed oxides composition as redox system in said reaction
10/28/1998	CN1040426C Process for preparing diprotected 2,3-hydroxymethyl cyclobutanol
10/27/1998	US5827794 Supported highly-polar liquid phase chiral sulfonated binap catalyst for asymmetric synthesis of optically active compounds
10/27/1998	US5827700 One step purifying the fermentation broth by concentrating the solution, adding lime and acid, crystallization, eluting through ion exchanging resin, by-product inhibition
10/27/1998	CA1340105C Process for the preparation of optically active 3-demethylmevalonic acidderivatives and intermediates
10/22/1998	WO1998046562A1 A process for the preparation of 4-bromomethyl diphenyl compounds
10/22/1998	WO1998046554A1 A novel process to produce stabilized carnosic acid in high concentration
10/22/1998	WO1998046547A1 Process for preparing 2-aryl-substituted indenes
10/22/1998	CA2258747A1 Process for preparing 2-aryl-substituted indenes
10/21/1998	EP0872470A2 Process for producing 2,6-naphthalenedicarboxyl acid
10/21/1998	EP0872469A1 Process for producing aldehyde acids or salts thereof
10/21/1998	EP0871603A1 Process for manufacturing terephthalic acid
10/21/1998	EP0871527A1 Thermally-managed separation and dewatering processes for recovering acid products
10/21/1998	EP0737180B1 Process for the preparation of 5-formylvaleric acid and 5-formylvalerate ester
10/21/1998	CN1196349A Method of controlling quality of terephthalic acid
10/20/1998	US5824820 Process for the preparation of citraconic anhydride
10/20/1998	US5824819 Making dibasic acids, such as adipic acid, by oxidizing hydrocarbon, such as cyclohexane, with oxygen in a two stage process
10/15/1998	WO1998045300A1 A process for the preparation of a metal salt of clavulanic acid
10/15/1998	WO1998045248A1 Novel process for the preparation of (+/-)3- (3,4-dichlorophenyl)-2- dimethylamino-2-methylpropan-1-ol or cericlamine (inn)
10/15/1998	WO1998045240A1 Process for chiral enrichment of optically active carboxylic acids, or salts or esters thereof
10/15/1998	WO1998045239A1 Water separation process
10/15/1998	WO1998045238A1 Improved method for producing crystalline carboxylic acids and apparatus therefor
10/15/1998	WO1998045038A1 Process and catalyst for carbonylating olefins
10/15/1998	CA2286460A1 Process for chiral enrichment of optically active carboxylic acids, or salts or esters thereof
10/15/1998	CA2277874A1 Novel process for the preparation of (+/-)3-(3,4-dichlorophenyl)-2-dimethylamino-2-methylpropan-1-ol or cericlamine (inn)
10/14/1998	EP0870757A2 Fluoro-substituted adamantane derivatives
10/14/1998	EP0870752A1 Bulk dyeing using quinophthalone dyestuffs
10/14/1998	EP0870751A1 Process for the oxidation of hydrocarbons, alcohols and/or ketons
10/14/1998	EP0870525A1 A method for recovering sublimable material
10/14/1998	EP0870052A1 Process for the preparation of gluconic acid and gluconic acid produced thereby
10/14/1998	EP0870009A1 Continuous process for producing tartaric acid and fodder yeast
10/14/1998	EP0869941A1 Modified polyunsaturated fatty acids
10/14/1998	EP0768999B1 Recovery of carboxylic acid from organic solution that contains an amine and an extraction enhancer
10/14/1998	EP0700371B1 Process for the manfacture of linear hydrofluorocarbons containing end group hydrogen substituents and azeotropes thereof
10/14/1998	EP0675867B1 Hydrolysis of methyl esters for production of fatty acids
10/14/1998	EP0646106B1 Method for the simultaneous preparation of dicarboxylic acids and diamines by decomposing polyamides into their constituent monomers
10/14/1998	CN1196043A Process for preparation of cyclopropane carboxylic acids and intermediates therefor
10/14/1998	CN1196042A Removal of carbonyl impurities from carbonylation process stream
10/14/1998	CN1195660A Comprehensive utilization of terephthalic acid residual liquid
10/14/1998	CN1195659A Purification of alpha-, bera- or gamma-substituted carboxylic acids
10/14/1998	CN1195658A Process for producing aromatic carboxylic acid and apparatus therefor
10/14/1998	CN1195657A Oxidizing process for hydrocarbon, alcohol and/or ketone
10/14/1998	CN1195577A Direct oxygen injection into bubble column reactors
10/13/1998	US5820665 Fluoroalkylcarboxylic acid and derivative thereof
10/08/1998	WO1998043937A1 Composition and method for reducing fouling in process equipment used for manufacturing aromatic materials
10/07/1998	EP0715615B1 Method for preparing (+)-(1r)-cis-3-oxo-2-pentyl-1-cyclopentaneacetic acid
10/07/1998	EP0649424B1 Dioxcyclobutene derivatives as angiotensin ii antagonists
10/07/1998	EP0646107B1 Method for the simultaneous preparation of dicarboxylic acids and diamines from polyamides
10/07/1998	CN1194981A Preparation of perylene-3,4-dicarboxylic acid anhydrides
10/07/1998	CN1194970A Process and apparatus for producing aromatic polycarboxylic acid
10/07/1998	CN1194969A Process for producing phthalic anhydride
10/07/1998	CN1194968A Industrial continuous process for preparing o-sodium hydroxy-mandelate
10/07/1998	CN1040101C Process for producing acetic anhydride alone or both of acetic anhydride and acetic acid
10/06/1998	US5817870 Catalytic oxidation
10/06/1998	US5817869 Carbonylation using methanol and carbon monoxide
10/06/1998	US5817868 Method and devices for controlling the oxidation of a hydrocarbon to an acid by regulating temperature/conversion relationship in multi-stage arrangements
10/06/1998	US5817865 Preparation of acrylic acid and esters
10/06/1998	US5817862 Reacting chlorinated aromatic compound and acrylic aid derivative in presence of a palladium catalyst and a phosphine compound
10/06/1998	US5817845 Decyclization of a lactol ring
10/06/1998	US5817780 Process for the alkaline oxidative degradation of reducing sugars
10/01/1998	WO1998042717A1 Diphosphines
10/01/1998	WO1998042651A1 Process for separating and purifying alkali metal salts of hydroxynaphthalenecarboxylic acids
10/01/1998	WO1998042649A1 Process for preparing 2,6-naphthalenedicarboxylic acid
10/01/1998	WO1998026449A3 A method for purification of acids for use in semiconductor processing
10/01/1998	WO1998024422A3 Method for controlling body fat and/or body weight in animals and pharmaceutical compositions for use therein
10/01/1998	CA2255621A1 Process for separating and purifying alkali metal salts of hydroxynaphthalenecarboxylic acids
09/1998
09/30/1998	EP0867433A1 Process for producing 4-bromomethyl-biphenyl compounds
09/30/1998	CN1194259A Process for preparing high-purity 2,4-dichlorophenoxyacetic acid
09/30/1998	CN1039991C Process for preparation of halogenated compounds
09/30/1998	CN1039990C Process for removing iodine compounds from carboxylic acids and/or anhydries
09/29/1998	US5814498 Process for the recovery of organic acids and ammonia from their salts
09/29/1998	US5814231 Separation of liquid eutectic mixtures by crystallization on cold surfaces and apparatus for this purpose
09/29/1998	US5814193 Electromagnetic radiation to convert halide impurities to lower boiling or/and higher boiling halide compound, separation by distillation
09/29/1998	CA2088973C Process for the purification of acetic anhydride and acetic acid
09/25/1998	CA2233055A1 Process for the preparation of 4-bromomethylbiphenyl compounds
09/24/1998	WO1998041478A1 Treatment of effluent streams containing organic acids
09/23/1998	EP0866050A1 Processes for producing tetra-fluorophthalic anhydride and fluorobenzioc acids
09/23/1998	CN1193958A 加氢甲酰化方法 Hydroformylation process
09/23/1998	CN1193957A Process to prepare 5-formylvaleric acid
09/23/1998	CN1193956A Process for producing carboxylic acids by carbonylisation of olefines
09/23/1998	CN1039884C Heterogeneous Ni catalyst for producing ethyl ether by carbonylation of methyl alcohol and producing process thereof
09/22/1998	US5811588 Process for the preparation of 3-phenylpropanal
09/22/1998	US5811563 Treating the lanolin dissolved in a polar organic solvent with faseous carbon dioxide to effect selective precipitation of the hydroxyfatty acids
09/22/1998	US5811459 Pain relievers
09/22/1998	CA2040504C Anhydrous metal salts of .alpha., .beta.-ethylenically unsaturated carboxylic acids and related methods
09/17/1998	WO1998040372A1 Process for treating crude phthalic anhydride
09/17/1998	WO1998040344A1 2-substituted benzoyl-cycloalkyl-1-carboxylic acid derivatives
09/17/1998	WO1998040343A1 Process for producing maleic acid
09/17/1998	WO1998040342A1 Method for extracting (meth)acrylic acid
09/17/1998	DE3348493C2 Di:hydro-poly:prenyl alcohol and ester and ether derivs.

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