Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
06/2001
06/07/2001CA2682110A1 Method of extracting protein from a marine mammal tissue
06/07/2001CA2390815A1 Process for preparing optically active .alpha.-hydroxy acids and derivatives thereof
06/06/2001EP1104396A1 Method for recovering methyl acetate and residual acetic acid in the production of pure terephthalic acid
06/06/2001CN1298380A Process for the manufacture of acetic anhydride
06/06/2001CN1297788A Liquid catalyst for producing high-purity chloroacetic acid and catalytic synthesis of chloroacetic acid
06/06/2001CN1066709C Process for producing terephthalic acid
06/06/2001CN1066708C Process for separating fatty bi-acid from mixture of fatty bi-acid adipic acid
06/06/2001CN1066707C Process for producing 1,2,4,5 pyromellitic anhydride
06/05/2001US6242643 By oxidizing at least one alkyl aromatic compound in the presence of an oxidation catalyst comprising a transition metal compound, a tertiary amine and a bromide
06/05/2001US6242635 Process for producing propionic acid derivatives
06/05/2001US6242057 Photoreactor composition and applications therefor
06/05/2001US6242000 Analgesic, antiinflammatory agent
06/02/2001CA2290885A1 Method for processing harbour seal tissues
05/2001
05/31/2001WO2001038424A1 Coloured polyphenoxydendrimers, novel soluble supports, method for preparing same an use in organic synthesis
05/31/2001WO2001038297A1 Novel intermediate for sweetener with high sweetness and process for producing the same
05/31/2001WO2001038285A1 Method for purifying (meth)acrylic monomers by distillation
05/31/2001WO2001038284A1 Improved lactic acid processing; methods; arrangements; and, products
05/31/2001WO2001038283A1 Purification of aqueous solutions of organic acids
05/31/2001WO2001038282A1 Method for oxidation of xylene derivatives
05/31/2001WO2001038281A1 Method for oxidation of xylene derivatives
05/31/2001WO2001038280A1 Method for oxidation of xylene derivatives
05/31/2001WO2001038279A1 Process for preparation of benzene dicarboxylic acids
05/31/2001WO2001037629A2 High surface microporous materials which are active in oxidation reactions. tiq-6 and metiq-6
05/31/2001CA2392390A1 Coloured polyphenoxydendrimers, novel soluble supports, method for preparing same an use in organic synthesis
05/30/2001EP1102775A1 Novel phospholipids with unsaturated alkyl and acyl chains
05/30/2001EP1102740A1 Method for producing sorbic acid and sorbic acid esters or derivatives thereof
05/30/2001EP1102738A1 Method for the acidic or alkaline saponification of biphenyl nitriles
05/30/2001EP1102732A1 Method for oxidizing hydrocarbons
05/30/2001EP0737238B1 Process for removing chlorophyll color impurities from vegetable oils
05/30/2001CN1296940A Environmentally friendly process for preparing benzoic acid and its derivatives
05/30/2001CN1066432C Process for preparation of citraconic anhydride
05/30/2001CN1066431C Method for preparation of monochloroacetic acid
05/30/2001CN1066430C Process for production of acetic acid by carbonylation of dimethyl ether
05/29/2001US6239312 Method for the preparation of salts of carboxylic acids using copper catalyzed dehydrogenation
05/29/2001US6239311 Process for the preparation of 3,4-dihydroxybutanoic acid and salts and lactones derived therefrom
05/29/2001US6239310 Method of recovery of terephthalic acid and ethylene glycol from poly/ethylene terephthalate/wastes
05/29/2001CA2042404C Alkylation of aromatics
05/25/2001WO2001036368A2 Metathesis syntheses of pheromones or their components
05/25/2001WO2001036364A1 Method for carrying out the catalytic gas phase oxidation of propene to form acrylic acid
05/24/2001US20010001649 Methods and devices for separating catalyst from oxidation mixtures containing dibasic acids
05/23/2001EP1101754A2 Method for the reduction of sulphur-containing, nitrification-inhibiting compounds
05/23/2001EP1101753A1 Process for producing adipic acid
05/23/2001EP1100954A1 Continuous process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives
05/23/2001EP1100953A1 CONTINUOUS PROCESS FOR PREPARING OPTICALLY PURE ($i(S))-3-HYDROXY-GAMA-BUTYROLACTONE
05/23/2001EP1100952A1 Process for preparing optically pure (s)-3,4-dihydroxybutyric acid derivatives
05/23/2001EP1100951A1 PROCESS FOR PREPARING OPTICALLY PURE ($i(S))-3-HYDROXY-GAMA-BUTYROLACTONE
05/23/2001EP1100948A1 Process for preparing alpha-(1,4) linked oligosaccharide
05/23/2001EP1100765A1 A process for producing terephthalic acid and/or dimethyl terephthalate
05/23/2001DE19946590A1 Catalytic oxidation of methyl substituted aromatic compounds, useful for the production of aromatic aldehydes and acids, use carbon dioxide at 80-300 bar and 150-400 degreesC and continual product removal.
05/23/2001CN1296470A Method for preparing acrylic acid and acrylic acid esters
05/23/2001CN1296469A Improved separation processes
05/23/2001CN1295999A Process for preparation of monochlorobenzoyl oxide by liquid phase air oxidation
05/23/2001CN1295998A Process for production of acetic acid
05/23/2001CN1066132C Process for producing formate and joint producing various sodium phosphates by acidifying sodium formate with perphosphoric acid
05/22/2001USRE37188 Preparing cyclopropanecarboxamide by reacting cyclopropanecarboxylic acid with ammonia
05/22/2001US6235932 Oxidation of cyclohexane, dilution, solvent extraction and cyclization
05/22/2001US6235930 Multistage reaction of sugars
05/22/2001US6235927 Process for the separation of a mixture of enantiomers
05/22/2001US6235673 For reaction between alcohols, ethers and olefins
05/22/2001CA2324635A1 Process for reducing the amount of nitrification-inhibiting sulfur compounds
05/17/2001WO2001034657A1 Process of oxidising primary alcohols
05/17/2001WO2001034592A1 5-halo-4-fluoro-4,7,7-trimethyl-3-oxabicyclo[4.1.0]heptane-2-ones, method for their production and their use in the production of cyclopropane carboxylic acids
05/17/2001WO2001034554A1 Compositions containing hydroxyeicosatetraenoic acid derivatives and methods of use in treating dry eye disorders
05/17/2001WO2001034552A2 Benzenoid derivatives of 15-hydroxyeicosatetraenoic acid and methods of their use in treating dry eye disorders
05/17/2001WO2001034550A2 15-hydroxyeicosatetraenoic acid analogs with enhanced metabolic stability and methods of their use in treating dry eye disorders
05/17/2001WO2001034549A1 Hydroxyeicosatetraenoate salts, compositions and methods of use in treating dry eye disorders
05/17/2001WO2001034545A2 Method for production of formic acid
05/17/2001WO2001034543A1 Process for the preparation of diol mixtures
05/17/2001WO2000050528A9 Method for isolating oleic acid and producing lineloic dimer/trimer acids via selective reactivity
05/17/2001DE19955168A1 Verfahren der katalytischen Gasphasenoxidation von Propen zu Acrylsäure A method of catalytic gas phase oxidation of propene to acrylic acid
05/17/2001DE19954160A1 5-Halo-4-fluor-4,7,7-trimethyl-3-oxabicyclo[4.1.0]heptan-2-one, Verfahren zu ihrer Herstellung sowie ihre Verwendung zur Herstellung von Cyclopropancarbonsäuren 5-Halo-4-fluoro-4,7,7-trimethyl-3-oxabicyclo [4.1.0] heptan-2-one, processes for their preparation and their use for the preparation of cyclopropane carboxylic acids
05/17/2001DE19952790A1 Verfahren zur Herstellung von Fettstoffgranulaten Process for the preparation of lipid granules
05/17/2001CA2390837A1 5-halo-4-fluoro-4,7,7-trimethyl-3-oxabicyclo[4.1.0]heptan-2-ones, process for their preparation and their use for preparing cyclopropanecarboxylic acids
05/17/2001CA2388044A1 Hydroxyeicosatetraenoate salts, compositions and methods of use in treating dry eye disorders
05/17/2001CA2388030A1 Benzenoid derivatives of 15-hydroxyeicosatetraenoic acid and methods of their use in treating dry eye disorders
05/17/2001CA2386619A1 Compositions containing hydroxyeicosatetraenoic acid derivatives and methods of use in treating dry eye disorders
05/16/2001EP1099681A2 Process for the production of acetic acid
05/16/2001EP1099680A2 Process for the production of acetic acid
05/16/2001EP1098867A1 Method for producing acrylic acid
05/16/2001EP1098866A1 Method for producing ortho-alkylated benzoic acid derivatives
05/16/2001EP0934246B1 Method for producing alpha-alkoxy-alpha-trifluoromethyl-aryl acetic acid esters and -aryl acetic acids
05/16/2001EP0882009B1 Production of aromatic polycarboxylic acids
05/16/2001CN1295555A Process for preparation of HPB esters
05/16/2001CN1295554A Method for producing (meth) acrylic acid and (meth) acrylic acid esters
05/16/2001CN1295553A Method for producing acrylic acid and acrylic acid esters
05/16/2001CN1295552A Method for producing acrylic acid and acrylic acid esters
05/16/2001CN1295551A Process for production of acetic acid
05/16/2001CN1295550A Processes for preparing oxygenates and catalysts therefor
05/16/2001CN1295549A Improved separation processes
05/16/2001CN1295499A Multi-metal oxide compounds
05/16/2001CN1295498A Multi-metal oxide compounds with two-phase structure
05/16/2001CN1295497A Multi-metal oxide material with two-phase structure
05/16/2001CN1295058A Distillation method of solution with easy-to-polymerize material
05/16/2001CN1295055A Tower processing method and equipment
05/16/2001CN1294939A Gas-phase catalyst oxidation reactor
05/15/2001US6232497 Method for producing alkali metal and alkaline earth metal pyruvates
05/15/2001US6232495 Oxidation of cobalt; dehydration; reduction; thrmal precipitation
05/15/2001US6232490 Using water, solvent and isomerization catalyst
05/15/2001US6232481 Acylation the corresponding alcoholic compound; alcoholyzing
05/15/2001US6232480 Using hydrogenation catalyst and absorber; by-product inhibition