Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
04/1995
04/26/1995EP0533724B1 Calcium citrate malate composition
04/25/1995US5410072 Mixtures of isomeric pentanoic acids, esters prepared therefrom, and their use as lubricants
04/25/1995US5409625 Azeotropic mixture of linear hydrofluorocarbon and HF
04/25/1995US5409579 Method for recovering acetic acid from aqueous streams
04/20/1995WO1995010499A1 Process for recovering dicarboxylic acid with reduced impurities from polyester polymer
04/20/1995CA2173987A1 Process for recovering dicarboxylic acid with reduced impurities from polyester polymer
04/19/1995EP0648732A1 Process for the purification of crude (meth)acrylic acid
04/19/1995EP0648731A1 Process for hydroxycarbonylation of butadiene
04/19/1995CN1028224C Methyl acrylic acid made by sobutene or tertiary butanol double step oxidation
04/18/1995CA2015560C Process for the preparation of .beta., - -unsaturated acids
04/13/1995WO1995009830A1 Method for preparing of mono or di-2-substituted cyclopentanone
04/13/1995CA2173618A1 Method for preparing of mono or di-2-substituted cyclopentanone
04/12/1995EP0647614A1 Process for the préparation of 5-fluoro anthranilic acid
04/12/1995EP0647610A1 A process for manufacturing 5-hydroxyisophthalic acid
04/12/1995EP0647214A1 Process for the oxidation of aromatic methyl groups
04/12/1995EP0635468A4 METHOD OF OBTAINING -g(a)-SUBSTITUTED -g(v)-HYDROPERFLUOROALKANES.
04/12/1995EP0484426B1 Process for making bismuth carboxylates
04/12/1995EP0396650B2 Device for carrying out catalytic reactions
04/12/1995CN1101355A Method for production of acrylate and acrylate containing polymer
04/11/1995US5406013 Cyclopentadiene type compounds and method for making
04/11/1995US5405996 Reacting ocygen and ethylene in presence of catalyst composed of metallic palladium and at least one heterpolyacid or salt
04/11/1995US5405995 Difluorophthalic compounds and their preparation
04/09/1995CA2117734A1 Process for the preparation of 5-fluoroanthranilic acid
04/06/1995WO1995009388A1 A control system for acetic acid manufacturing process
04/06/1995WO1995009142A1 Method to produce cyclic esters
04/06/1995DE4340109C1 Process for working up mixtures of metals and soaps
04/06/1995CA2172798A1 Method to produce cyclic esters
04/06/1995CA2133612A1 Process for the preparation of acid chloride compounds
04/05/1995EP0646637A1 Mixtures of isomeric pentanoic acids, their esters and their use as lubricant
04/05/1995EP0646566A1 Process for the preparation of acid chloride compounds
04/05/1995EP0646558A1 Process for the production of hydrocarbon partial oxidation products
04/05/1995EP0646107A1 Method for the simultaneous preparation of dicarboxylic acids and diamines from polyamides
04/05/1995EP0646106A1 Method for the simultaneous preparation of dicarboxylic acids and diamines by decomposing polyamides into their constituent monomers
04/05/1995EP0646042A1 Electrochemical method for the preparation of dicarboxylic acids
04/05/1995CN1101035A Alkaline earth metal salts, transition metal salts and transition metal complexes of ketocarboxylic acids as corrosion inhibitors
04/05/1995CN1101033A Method of removing iodine compounds from crude acetic anhydride or mixture or crude acetic anhydride and crude...
04/05/1995CN1028097C Disconnecting for cis-chrysanthemum acid
04/05/1995CA2133268A1 Membrane-based process for the recovery of lactic acid by fermentation of carbohydrate substrates containing fermentable sugars
04/04/1995US5403954 Preparation of methyltris(m-sulfonatophenyl) phosphonium iodide trisodium salt and use thereof in carbonylation reactions to prepare carboxylic acids and/or their esters
03/1995
03/31/1995CA2132675A1 Mixtures of isomeric pentanoic acids, esters prepared from them and their use as lubricants
03/30/1995WO1995008391A1 CATALYST BASED ON Fe, Co, Bi AND Mo OXIDES
03/30/1995CA2172259A1 Catalyst based on oxides of fe, co, bi and mo
03/29/1995WO1995009143A1 Production method of high purity isomers of benzenedicarboxylic acids
03/29/1995EP0645365A1 Process for producing 2-fluoroisobutyric acid or ester thereof
03/29/1995EP0645363A1 Process for producing adipic acid
03/29/1995EP0645362A1 Process for producing highly purified acetic acid
03/29/1995EP0645361A1 Production method for alkoxynaphthalenecarboxylic acid
03/29/1995EP0645167A1 Process for obtaining pharmacological active compounds from complex substance mixtures
03/29/1995EP0644865A1 Supercritical separation of isomers of functional organic compounds at moderate conditions
03/29/1995EP0563124B1 Continuous process for the preparation of acetic anhydride or mixtures of acetic anhydride and acetic acid
03/29/1995EP0434739B1 Process for the preparation of 4-sulfo-2-chlorobenzoic acid
03/29/1995CN1100668A Process for removal of solid organic matters
03/29/1995CN1028023C Preparation of glutaric acid derivatives
03/29/1995CN1028022C Process and catalyst for dehalogenation of alpha-halogenated carboxylic acid
03/29/1995CN1028021C Continuous process for preparing matallic soaps
03/28/1995US5401876 Synthesis of chloroacetic acids
03/28/1995US5401874 Nitroxide free radical catalysts for oxidation of alkoxy alkanols
03/28/1995US5401865 Saturated branched fatty acids containing 21 to 28 carbon atoms or esters thereof with c1-36 alkanols, a process for their production and their use
03/28/1995US5401817 Olefin polymerization using silyl-bridged metallocenes
03/28/1995US5401707 Prepared from intercalation compound of vanadyl hydrogen phosphate and alkylamine
03/23/1995DE4332292A1 Process for the direct hydroxylation of unsaturated carboxylic acids
03/22/1995EP0644186A1 Process for the preparation of 13-(Z)- retinoic acid.
03/22/1995EP0644180A1 Process for purifying polar vinyl compounds
03/22/1995EP0643684A1 Method for removing iodine compound from acetic acid.
03/22/1995EP0484400B1 Continuous process for preparation of aqueous dispersions of metal soaps
03/22/1995EP0297137B1 Deicing compositions comprising alkaline earth or alkali metal carboxylates and processes for their production
03/22/1995CN1100409A Process and apparatus for producing terephthalic acid
03/22/1995CN1100408A Pentanoic acid derivatives
03/22/1995CN1100407A Method for producing benzoic anhydride fumaric acid and cis-anhydride by separating benzoic anhydride mixed acid
03/21/1995US5399762 Quaternary ammonium hydroxide compositions and preparation thereof
03/21/1995US5399754 Process for producing perfluorocarboxylic acid fluoride
03/21/1995US5399753 Catalyst recovery in the carbonylation of chlorobutenes to pentenoyl chloride
03/21/1995US5399752 Purification of carboxyl streams
03/21/1995US5399751 Method for recovering carboxylic acids from aqueous solutions
03/21/1995US5399749 Catalyzed process for oxidation of ozonides of unsaturates to carboxylic acids
03/21/1995US5399747 Process for preparing carboxylic acids by carbonylation of ethers and thioethers
03/21/1995US5399718 Removal of hydrofluoric acid by-product
03/21/1995US5399707 Making salt of amino acid lysine, arginine or histidine with alpha-arylcarboxylic acid either by starting from second salt of anion and protonated cation of amino acid or by distilling water from amino acid-arylcarboxylic acid mixture
03/16/1995WO1995007303A1 Method for oxidising carbohydrates
03/16/1995WO1995007076A1 Inclusion complexes of racemic ibuproxam and of optically active ibuproxam with cyclodextrin derivatives, process for the preparation thereof, pharmaceutical preparations containing these inclusion complexes or containing optically active s-(+)-ibuproxam, and use thereof
03/16/1995DE4431949A1 Process for the catalytic gas-phase oxidation of acrolein to acrylic acid
03/16/1995DE4431233A1 Process for the preparation of formate salts of tertiary amines
03/15/1995EP0643065A1 Novel bisphosphines for asymetric hydrogenation catalysts
03/15/1995EP0643034A1 Process for the production of acetic acid
03/15/1995EP0642491A1 Process for the production of purified terephthalic acid
03/15/1995EP0642490A1 Process for the production of purified terephthalic acid
03/15/1995CN1100088A Process for preparing fumaric acid as food additive
03/15/1995CN1100087A Process for the preparation of carboxylic acids or corresponding esters in the presence of a catalyst based on reodium and iridium
03/15/1995CN1100086A Process for preparing sertraline intermediates
03/15/1995CN1027890C Process for preparing rare earth ammonium double oxalate and use for preparing rare earth oxidate
03/15/1995CN1027889C Method for preparation of monochloroacetic acid
03/09/1995WO1995006629A1 Process for producing polyfluoropropionyl halide
03/09/1995DE4329907A1 Multimetal oxide compositions containing at least the elements antimony and phosphorus and additionally at least one of the two elements Mo, W
03/09/1995DE4329906A1 Compositions of the general formula Mo12PaVbX<1>cX<2>d X<3>eSbfRegShOn
03/08/1995EP0641304A1 Stereo-selective synthesis of 2-aryl-propionic acids of high optical purity by using chiral oxazolines
03/08/1995EP0641303A1 Bromine catalysed oxidation processes
03/08/1995EP0641256A1 Process for the transformation of vanadium/phosphorus mixed oxide catalyst precursors into active catalysts for the production of maleic anhydride.
03/08/1995EP0641254A1 Catalyst supports, supported catalysts methods of making the same and methods of using the same
03/08/1995EP0641169A1 Preparation of a fatty acid alkaline salt
03/08/1995EP0558621B1 Process for improving flow characteristics of crystalline ibuprofen