| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 04/10/1997 | WO1997012851A1 Method for inhibiting polymerization of vinyl compounds |
| 04/10/1997 | WO1997012674A1 Molybdenum-modified vanadium-phosphorus oxide catalysts for the production of maleic anhydride |
| 04/09/1997 | EP0766985A1 Process and device for the separation of liquid eutectic mixtures by crystallisation on cooling surfaces |
| 04/09/1997 | EP0766984A1 Process for separating substances of a liquid mixture by crystallisation |
| 04/09/1997 | EP0766658A1 Process for improving enantiomeric purity of aldehydes |
| 04/09/1997 | EP0746410A4 Water-soluble chiral sulfonated binap catalyst for asymmetric synthesis of optically active compounds |
| 04/09/1997 | EP0729438B1 Method of preparing a caesium and rubidium salt solution |
| 04/09/1997 | EP0680374B1 Catalytic decomposition process of nitrous oxide pure or contained in gaseous mixtures |
| 04/09/1997 | EP0673357B1 Process for the hydrolysis treatment of a material comprising a polymer |
| 04/09/1997 | CN1034495C Method for refining petroleum naphthenic acid |
| 04/08/1997 | US5618839 Retinoid-like compounds |
| 04/08/1997 | US5618526 Stable complexes as deodorizer; oxidation resistance, discoloration inhibition |
| 04/03/1997 | WO1997012028A1 Continuous process for producing tartaric acid and fodder yeast |
| 04/03/1997 | WO1997011932A1 Method for the development of delta-lactones and hydroxy acids from unsaturated fatty acids and their clycerides |
| 04/02/1997 | EP0765856A1 Stabilized acrylic acid compositions |
| 04/02/1997 | EP0765855A1 Liquid solutions of dicarboxylic acids |
| 04/02/1997 | EP0765854A1 Process for the rectificative separation of unsaturated carboxylic acids from solvents |
| 04/02/1997 | EP0765419A1 Process for preparing aqueous metallic soap dispersions |
| 04/02/1997 | EP0765350A1 Derivatives of polyamines with one primary amine group and secondary or tertiary amines groups |
| 04/02/1997 | EP0765348A1 Continuous process for production of functionalized olefins |
| 04/02/1997 | EP0765347A1 Batch koch carbonylation process |
| 04/02/1997 | EP0659172B1 Analogues of vpa used as anti-epileptica |
| 04/02/1997 | CN1146761A Method for carboxylating a phenol ether |
| 04/02/1997 | CN1146439A Composite metal oxide material |
| 04/01/1997 | US5616794 Process for preparing fluorocarboxylic acid halides |
| 04/01/1997 | US5616792 Passing aqueous solution of impure acid through bed of catalyst containing group 8 metal on titanium dioxide, with controlled heating and pressurization, then cooling and crystallization |
| 04/01/1997 | US5616787 Process for the preparation of alkylated aromatic carboxylic acids and acyl halides |
| 04/01/1997 | US5616752 Metallocenes and processes therefor and therewith |
| 04/01/1997 | US5616734 Process for the catalytic oxidation of aromatic compounds |
| 04/01/1997 | US5616730 Polymerization and by-product inhibition |
| 04/01/1997 | US5616729 Fluorescence |
| 04/01/1997 | CA1339036C Bromoethylation of aromatic hydrocarbons |
| 04/01/1997 | CA1339035C Chloroethylation of aromatic hydrocarbons |
| 03/30/1997 | CA2171228A1 Process for purifying acetic acid |
| 03/29/1997 | CA2183673A1 Separation by rectification of unsaturated carboxylic acids from solvents |
| 03/27/1997 | WO1997011082A1 A catalyzed process for producing metal carboxylates for use as animal feed supplements |
| 03/27/1997 | WO1997011047A1 Acid-salt metathetic process |
| 03/27/1997 | DE19535426A1 Recovering organic materials from a mixture |
| 03/27/1997 | CA2232572A1 Acid-salt metathetic process |
| 03/26/1997 | EP0764627A1 Process for producing highly pure terephthalic acid |
| 03/26/1997 | EP0764626A1 Process to manufacture aromatic carboxylic acids |
| 03/26/1997 | CN1145825A Improvement of fluid bed catalysts |
| 03/26/1997 | CN1034328C Method for prepn. of ferulic acid, sodium ferulate, steorl from ferulic acid ester |
| 03/25/1997 | CA2016347C Process for manufacturing high-purity o-toluic acid |
| 03/20/1997 | WO1997010198A1 Removal of carbonyl impurities from a carbonylation process stream |
| 03/20/1997 | DE19534276A1 Recycling polyalkylene terephthalate esp. PET film waste |
| 03/19/1997 | EP0763533A1 Preparation and use of the pure enantiomers of 8-chloro-6-sulfonyloxy-octanoic acid and its alkyl esters and of the pure enantiomers of 6,8-dichloro-octanoic acid and its alkyl esters |
| 03/19/1997 | EP0763527A1 Substituted 2,2-dimethyl-omega-phenoxy alkanoic acids and esters, process for their preparation and pharmaceutical compositions containing them |
| 03/19/1997 | EP0763516A1 Preparation and utilisation of pure enantiomers of 8-halogen-6-hydroxyoctanoic acid, their alkyl esters and their salts with pure enantiomers of alpha-methyl-benzylamines |
| 03/19/1997 | EP0763008A1 Process for the removal of iodine from carboxyl products |
| 03/19/1997 | EP0763007A1 Process for the removal of iodine from acetyl compounds |
| 03/19/1997 | EP0763006A1 Recovery of carboxylic acid from organic solution that contains an amine and an extraction enhancer |
| 03/19/1997 | EP0725847A4 A process for the production of water-soluble salts of carboxylic and amino acids |
| 03/19/1997 | CN1145358A Process for recovery of organic acid from manufacture of cellulose ester |
| 03/18/1997 | US5612007 Chemical reactors for exothermic oxidation reaction and distillation, removal of combustable reaction effluents and energy |
| 03/18/1997 | CA2131094C Acetic acid recovery |
| 03/18/1997 | CA2092901C Acetone removal process |
| 03/18/1997 | CA2035960C Method of producing naphthalene dicarboxylic acid |
| 03/18/1997 | CA2001344C Process for the treatment of quaternary onium salts and its application to the preparation of hexafluoropropylene oxide |
| 03/13/1997 | CA2185089A1 Process for the recovery of catalysts in adipic acid production |
| 03/12/1997 | EP0761637A1 Method for producing rosefuran precursor and intermediates therefor |
| 03/12/1997 | EP0761636A1 Recovery of catalysts from adipic acid production |
| 03/12/1997 | EP0761305A1 Regeneration of fluid bed catalysts |
| 03/12/1997 | CN1145060A Desorption process and apparatus |
| 03/12/1997 | CN1144846A Production technology of sodium citrate |
| 03/12/1997 | CN1144794A Method for extracting citric acid |
| 03/11/1997 | US5610247 Unbridged metallocenes of 9-substituted fluorenyl compounds and use thereof |
| 03/06/1997 | WO1997008127A1 Hydroformylation process |
| 03/06/1997 | WO1997008125A1 Process for producing carboxylic acids by the carbonylisation of olefines |
| 03/05/1997 | EP0760393A2 Chromatography process |
| 03/05/1997 | EP0759888A1 Synthetic meixnerite product and method |
| 03/05/1997 | EP0759751A1 Process for the preparation of acanthoic acid and pharmaceutical composition comprising same |
| 03/05/1997 | CN1144493A Coated catalytic compositions including nickel, cobalt and molybdenum, and use thereof for preparing unsaturated aldehydes |
| 03/05/1997 | CN1144216A Method for preparation of calcium alkyl salicylate with high base number |
| 03/04/1997 | US5608107 Reacting alkoxyalkanol with resin-supported free radical nitroxide in the presence of chlorine-containing oxidant and solvent |
| 03/04/1997 | US5608106 Preparation of alkoxyalkanoic acids |
| 03/04/1997 | US5608105 Production of levulinic acid from carbohydrate-containing materials |
| 03/04/1997 | US5608084 And vascular pathologies; multistep preparation by reacting a hydroquinone with alkyl vinyl ketone, esterifying hydroxy 3,4-dihydro-2h-1-benzopyran, demethylating ether, reacting with alkyl 5-bromopentanoate, hydrolyzing, two more steps |
| 03/04/1997 | US5608083 Catalytic gas phase oxidation of o-xylene or naphthalene |
| 02/27/1997 | DE19633917A1 Octyl p=methoxy-cinnamate prepn. by clean, safe, economical process using little catalyst |
| 02/26/1997 | EP0759444A2 Unsaturated hydroxycarboxylic compounds useful as intermediates for preparing lubricant and fuel additives |
| 02/26/1997 | EP0759425A2 Process for the preparation of optically active 1-aryl-alkylamines |
| 02/26/1997 | EP0759424A1 Process for producing optically active 2-hydroxy-4-arylbutyric acid or its ester, and intermediate therefor |
| 02/26/1997 | EP0759421A1 Process for the purification of a C2 to C4 carboxylic acid and/or anhydride having impurities |
| 02/26/1997 | EP0759420A1 Process for preparing carboxylic acids by carbonylation of olefins |
| 02/26/1997 | EP0759419A1 Process for the carbonylation of an alcohol and/or a reactive derivative thereof |
| 02/26/1997 | EP0759316A1 Device and method for mass transfer in tray columns |
| 02/26/1997 | EP0759023A1 Liquid phthalic anhydride recovery process |
| 02/26/1997 | EP0759022A1 Method for the preparation of carboxylic acids or corresponding esters in the presence of a soluble iridium-based catalyst |
| 02/26/1997 | EP0705137B1 Oxidative cleavage of alkenes |
| 02/26/1997 | CN1143948A Process for production of cyclohexyladipates and adipic acid |
| 02/26/1997 | CN1143947A Handling of crystallic terephthalic acid at elevated pressure |
| 02/26/1997 | CN1143633A Process for coproducing methyl dichloroacetate and mercaptoacetic acid |
| 02/26/1997 | CN1143624A Process for synthesizing ketoprofen |
| 02/26/1997 | CN1143623A Separation of (meth) acrylic acid from reaction gas mixture formed in catalytic gas phase oxidation of C3/C4 compounds |
| 02/25/1997 | US5606005 Polyesterurethane copolymer, dicarboxylic acid of polyester unit contains 30 mole % of 3,8-dimethyldecanedioic acid and 3,7-dimethyldecanedioic acid; fibers produced have heat/cold/hot water/chlorine/fungus and wear resistance |
| 02/25/1997 | US5605669 Reacting cesium aluminum alum with calcium hydroxide and a calcium salt |
| 02/25/1997 | US5605606 Treating fluid mixture with a fluid which is a solvent for the first fluid and in which fouling components for the first fluid are insoluble, precipitating foulants, distilling |
| 02/25/1997 | CA1338939C Vinylphenol derivatives, their preparation and their use |
| 02/23/1997 | CA2183611A1 Unsaturated hydroxycarboxylic compounds useful as intermediates for preparing lubricant and fuel additives |