Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
01/2002
01/22/2002US6340485 Compositions and uses thereof
01/22/2002US6340420 Methods of treating the oxidation mixture of hydrocarbons to respective dibasic acids
01/17/2002WO2002004397A1 Method for producing fluorine-containing compound
01/17/2002WO2002004396A1 Retardation of discolouration of dicarboxylic acids
01/17/2002WO2002004395A1 Retardation of discolouration of dicarboxylic acids
01/17/2002WO2002004394A1 Process control for acetic acid manufacture
01/17/2002WO2001055070A3 Method for cleaning off-gas flows
01/17/2002WO2001055069A3 Waste water treatment in a method for producing formic acid which is free of water
01/17/2002WO2001034552A3 Benzenoid derivatives of 15-hydroxyeicosatetraenoic acid and methods of their use in treating dry eye disorders
01/17/2002US20020007088 Vapor-phase oxidation of propylene, isobutylene, t-butanol or methyl-t-butyl ether by oxygen using a fixed bed, shell/tube reactor filled with an inorganic mixed oxide catalyst of various shapes; controlling/eliminating hot spots
01/17/2002US20020007010 Process for the preparation of methyl p-vinylbenzoate and p-vinyl benzoic acid, and their use in latex compositions
01/17/2002US20020006368 Solid catalyst for vapor phase oxidation
01/17/2002CA2412168A1 Retardation of discolouration of dicarboxylic acids
01/17/2002CA2411871A1 Retardation of discolouration of dicarboxylic acids
01/16/2002EP1172353A1 Retardation of discolouration of dicarboxylic acids
01/16/2002EP1172352A1 Retardation of discolouration of dicarboxylic acids
01/16/2002EP1172350A2 Process for the preparation of perfluorcarboxylic acids
01/16/2002EP1171409A1 Methods of replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst
01/16/2002EP1171408A1 Method for producing carboxylic acids from olefins
01/16/2002EP1171237A1 Vanadium phosphorus oxide catalyst having a thermally conductive support
01/16/2002EP1171212A2 Solvent extraction process
01/16/2002EP0977723B1 Process for the preparation of trifluoroethoxyarenecarboxylic acids
01/16/2002EP0923527B1 A process for the preparation of 2-(3-benzoyl-phenyl)-propionic acid starting from aryl-olefins
01/16/2002CN1331667A Process for carbonylation of allylic butenol or butenyl ester of carboxylic acid
01/16/2002CN1077894C Process for preparing dieneketonol acetate
01/16/2002CN1077879C Process for prepn. of stilbenedicarboxylic esters
01/16/2002CN1077877C Method for preparing 4-hydroxy phenylpropionic acid compound
01/16/2002CN1077876C Process for preparing aromatic carboxylic acid
01/16/2002CN1077875C Process and appts. for producing aromatic carboxylic acid
01/16/2002CN1077874C Improved metal-ligand complex catalyzed processes
01/15/2002US6339171 Removal or reduction of permanganate reducing compounds and alkyl iodides from a carbonylation process stream
01/15/2002US6339037 Catalysts for methacrylic acid production and process for producing methacrylic acid
01/10/2002WO2002002578A1 Ferrocenyl diphosphines and their use
01/10/2002WO2002002501A1 Alpha-arylated cinnamic esters and 1,4-bis(alpha-carboxyl-beta-styryl)benzene esters as uv-blocking agents
01/10/2002WO2002002500A1 Preparation of (r)-2-alkyl-3-phenylpropionic acids
01/10/2002WO2001036368A3 Metathesis syntheses of pheromones or their components
01/10/2002US20020004611 From fermentation broth
01/10/2002US20020004610 Process for the preparation of lactic acid by evaporative crystallisation
01/10/2002US20020004609 Process for production of aliphatic aldehyde-acid and/or aliphatic dicarboxylic acid and catalyst for the production
01/10/2002US20020004603 Process for the preparation of maleic anhydride
01/10/2002US20020004576 Method of modifying components present in cashew nut shell liquid
01/10/2002US20020004496 Specific salt forms of triphenylethylene derivatives as selective estrogen receptor modulators
01/10/2002US20020003117 Process for recovering crystals from a slurry
01/10/2002DE10031518A1 Verfahren zur Herstellung von Hydroformylierungsprodukten des Propylens und von Acrylsäure und/oder Acrolein A process for preparing hydroformylation products of propylene and acrylic acid and / or acrolein
01/09/2002EP1170280A2 Process for recovering crystals from a slurry
01/09/2002EP1170274A1 Process for the preparation of polyols
01/09/2002EP1169289A1 Method for producing derivatives of biphenyl-2-carboxylic acid
01/09/2002EP1169282A1 Site-specific isotopically-labeled proteins, amino acids, and biochemical precursors therefor
01/09/2002EP0855996B1 Oxidation of aldehydes to carboxylic acids
01/09/2002CN1330617A Selective hydrodehalogenation method
01/09/2002CN1330064A Method for producing malonate derivative or beta-ket-acid ester by epoxide derivative
01/09/2002CN1329931A Method for starting distillation tower
01/09/2002CN1077563C Process for preparation of citraconic anhydride
01/09/2002CN1077562C Process for oxidation of alkanes
01/08/2002US6337407 Halogenated compounds with heterocyclic ester compounds
01/08/2002US6337051 Device for detecting formation of a second liquid phase
01/03/2002WO2002000588A1 Method for oxidising hydrocarbons, alcohols and/or ketones
01/03/2002WO2002000587A1 Method for producing propylene hydroformylation products and acrylic acid and/or acrolein
01/03/2002WO2002000584A1 Cyclic ketones, their preparation and their use in the synthesis of amino acids
01/03/2002US20020002305 Reacting aromatic acid with amine; salt fromation; decomposition
01/03/2002US20020002304 Solvent extraction
01/03/2002US20020002303 Low temperature purification of naphthalene dicarboxylic acids
01/03/2002US20020002302 Carboxylation of naphthalenecarboxylic acid
01/03/2002US20020002301 Bonding strength, adhesion to polyolefins; storage stability
01/03/2002US20020002253 Method for preventing polymerization of (meth) acrylic acid and esters thereof and method for the production thereof
01/03/2002CA2413848A1 Method for oxidising hydrocarbons, alcohols and/or ketones
01/03/2002CA2411808A1 Cyclic ketones, their preparation and their use in the synthesis of amino acids
01/02/2002EP1168068A2 Method and apparatus for preparing grains of a silver salt of an organic acid and method for producing thermally processed image recording materials
01/02/2002EP1167336A2 Process for recovering catalyst components from a mother liquor of liquid phase oxidation
01/02/2002EP1167335A2 Process for producing aromatic polycarboxylic acid
01/02/2002EP1166865A2 Method for starting up reactor and reactor system
01/02/2002EP1165580A1 Catalytic method for modifying carbohydrates, alcohols, aldehydes or polyhydroxy compounds
01/02/2002EP1165482A1 Method for producing overbased zinc soaps
01/02/2002EP1165481A1 Hydrocarbon, alcohol and/or ketone oxidation method
01/02/2002CN1328989A Oxidizing reaction device and method
01/02/2002CN1328988A Process for preparing acrylic acid
01/02/2002CN1328871A Method and device for fluidized bed reaction
01/02/2002CN1077096C Removal of carbonyl impurities from carbonylation process stream
01/02/2002CN1076984C Process for removal of solid organic matters
01/01/2002US6335373 Treating rosemary leaves with aqueous solution of lower alkyl alcohol, said aqueous solution further comprising water soluble acid
01/01/2002CA2232393C A catalyzed process for producing metal carboxylates for use as animal feed supplements
12/2001
12/27/2001WO2001098248A2 Hiv integrase inhibitors
12/27/2001WO2001098247A2 Two stage process for the production of unsaturated carboxylic acids by oxidation of lower unsaturated hycrocarbons
12/27/2001WO2001056965A3 MANUFACTURING PROCESS FOR THE PREPARATION OF α,α,α",α"-BRANCHED DICARBOXYLIC ACIDS
12/27/2001WO2001051448A3 Method of gas phase catalytic oxidation to give maleic acid anhydride
12/27/2001US20010056204 Continuous recovery of (meth)acrylic acid
12/27/2001US20010056192 Detected by differential scanning calorimetry; sedimentation; cyclization
12/27/2001CA2412985A1 Hiv integrase inhibitors
12/26/2001CN1328537A Method of producing acyl fluorides from acyl chlorides
12/26/2001CN1328536A Improved process for producing highly pure aromatic carboxylic acids
12/26/2001CN1328485A Reactor for carrying out gas-liquid, liquid-liquid or gas-liquid-solid chemical reactions
12/26/2001CN1327974A Process for rapidly racemizing naproxen methylester by microwave method
12/26/2001CN1327953A Process for treating waste liquid of furaldehyde and recovering butyl acetate, ammonium sulfate, ammonium acetate, acetamide and acetonitrile
12/26/2001CN1076725C Process for preparing sodium lactate
12/25/2001US6333444 Catalyst composition comprising, in combination with oxygen, molybdenum, vanadium, niobium and gold, and additional elements, in absence of palladium
12/25/2001US6333441 Preparation of cis—olefins
12/25/2001US6333431 Processes for the preparation of fluorinated benzoic acids
12/25/2001US6333426 Chiral adsorbents and preparation thereof as well as compounds on which the absorbents are based and preparation of the compounds
12/25/2001US6333415 Intermediates and processes for the preparation of optically active octanoic acid derivatives
12/25/2001US6333293 Molding powder containing phosphorous adn molybdenum under pressure; calcining molded article to obtain catalyst