| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 04/23/2003 | CN1413182A Oxidation process |
| 04/23/2003 | CN1106377C Process for production of acetic acid through carbonylation |
| 04/23/2003 | CN1106375C Method for preparing substituted anthraquinone |
| 04/23/2003 | CN1106374C Process for employing tracer ligands |
| 04/23/2003 | CN1106366C Preparation of branched surfactant |
| 04/23/2003 | CN1106345C Method for production of cesium salt |
| 04/22/2003 | US6552221 Implementing on line infrared analysis to the purification and recycling section of reaction system |
| 04/22/2003 | US6552220 Catalyst for production of acetic acid and ethyl acetate, process for its production and process for production of acetic acid and ethyl acetate using it |
| 04/17/2003 | WO2003031689A1 Method of removing iron oxide deposits from the surface of titanium components |
| 04/17/2003 | WO2003031457A1 Diphosphine |
| 04/17/2003 | WO2003031385A1 Method for the preparation of a stable alkali metal lactate in powder form |
| 04/17/2003 | WO2003031384A1 Process for production of (meth)acrylic compounds and method of distillation |
| 04/17/2003 | WO2003031051A1 Reactor for oxidizing reaction of a liquid with a gas |
| 04/17/2003 | CA2461920A1 Diphosphine |
| 04/16/2003 | EP1301457A2 Method for producing acrylic acid by the heterogeneously catalysed gas-phase oxidation of propane |
| 04/16/2003 | EP1301456A1 Production of aromatic carboxylic acids |
| 04/16/2003 | CN1411500A Method for purifying marine mammal oil enriched in omega 3 fatty acids and compositions comprising same |
| 04/16/2003 | CN1411437A Process for preparation of diphenyl ether compounds |
| 04/16/2003 | CN1411432A Process for enhanced acetone removal from carbonylation processes |
| 04/16/2003 | CN1410468A Refining process for acetic anhydride, crude acetic anhydride and process for producing polyoxy-1,4-butanediol using acetic anhydride |
| 04/16/2003 | CN1410409A Preparation method of malonic acid and its ester |
| 04/16/2003 | CN1410408A Refining method of carbon 11-18 long chain diacid |
| 04/16/2003 | CN1410407A Production method of2-ethyl hexanoic acid |
| 04/16/2003 | CN1105702C Process for preparing monochloroacetic acid |
| 04/16/2003 | CN1105599C Catalysts for oxidation of ethane to acetic acid. process of making same and use |
| 04/16/2003 | CN1105558C 2,2-dichloroalkane carboxylic acids, process for preparing same, medicament containing same and use for treating insulin resistance |
| 04/15/2003 | US6548713 Process for the preparation of organic compounds with manganese catalysts or the like |
| 04/15/2003 | US6548698 Oxidative carbonylation of toluene catalyzed by rhodium and iridium |
| 04/15/2003 | US6548697 Catalytic reaction of alkane and oxygen gas; esterification of alkene and carboxylic acid produced to form alkenyl carboxylate |
| 04/15/2003 | US6548689 Aluminum compounds and process of making the same |
| 04/15/2003 | US6548687 Chromium L-threonate, process for preparation of the same and their use |
| 04/15/2003 | US6548546 HIV integrase inhibitors |
| 04/15/2003 | US6548444 Producing esters and carboxylic acids from reactants lower alkyl alcohols in presence of a solid supported catalyst |
| 04/10/2003 | WO2003029177A1 Method for the production of acrylic acid by heterogeneously-catalysed gas-phase oxidation |
| 04/10/2003 | WO2003008367A3 Process for the manufacture of aromatic carboxylic acids from aldehydes |
| 04/10/2003 | WO2002098826A3 Solid phase extraction method for isolating unsaturated compounds |
| 04/10/2003 | US20030069444 Method for producing ortho-alkylated benzoic acid derivatives |
| 04/10/2003 | US20030069443 Reacting a metal hydride with an anthraquinone, deketalization; dye intermediates |
| 04/10/2003 | US20030069438 Method for the stereoselective synthesis of cyclic amino acids |
| 04/10/2003 | US20030068424 Method for the preparation of a stable alkali metal lactate in powder form |
| 04/10/2003 | US20030068261 Exothermic reactions; uniform cross-section |
| 04/09/2003 | EP1300386A1 Method for producing fluorine-containing compound |
| 04/09/2003 | EP1300385A1 Process for preparing sorbic acid and sorbic acid polyesters |
| 04/09/2003 | EP1299339A1 Retardation of discolouration of dicarboxylic acids |
| 04/09/2003 | EP1299338A1 Process control for acetic acid manufacture |
| 04/09/2003 | EP1299190A1 Method for producing addition products of ethylenic unsaturated compounds |
| 04/09/2003 | EP1080096B1 Novel furylphosphines and organometallic complexes containing them |
| 04/09/2003 | EP1067995B1 Method for separating vaporous phthalic acid anhydride from a gas stream |
| 04/09/2003 | EP1009728B1 Process for improving shelf stability of liquid overbased calcium carboxylates, mixed metal stabilizers containing same, and stabilizing halogen-containing polymers therewith |
| 04/09/2003 | EP0920300B1 Vegetable oil compositions |
| 04/09/2003 | CN1409698A Method for producing methacrylic acid |
| 04/09/2003 | CN1409653A Oxidative reaction using membrane that selectively conduct oxygen |
| 04/09/2003 | CN1408700A process for producing propenoic acid |
| 04/09/2003 | CN1408699A Shell and tube heat exchanger and method for producing (melhyl) propenoic acid using said heat exchanger |
| 04/09/2003 | CN1408698A Process for producing (Methyl) propenoic acid |
| 04/09/2003 | CN1408697A Process for preparing propane diacid and its ester |
| 04/09/2003 | CN1105096C Copolymer ligand rhodium catalyst of methanol carbonylation synthetic acetic acid and ethyl anhydride and its preparation |
| 04/09/2003 | CN1104949C Hgdrogenation catalysts |
| 04/09/2003 | CN1104947C Preparation of alumen antimonate catalyst by using tin dioxide hydrate |
| 04/09/2003 | CN1104924C Thermally-managed separation and dewatering processes for recovering acid products |
| 04/08/2003 | US6545180 Batch processing; decomposition of polyester |
| 04/08/2003 | US6545178 Vapor phase catalytic oxidation |
| 04/08/2003 | US6545177 Mixed oxide including molybdenum, vanadium, a group 2A element, and one of silicon(Si), aluminum(Al), titanium(Ti), and zirconium (Zr); made using a source compound containing both a group 2A element and one of Si, Al, Ti, and Zr |
| 04/08/2003 | US6545176 Apparatus and process for the high yield production of methyl methacrylate or methacrylic acid |
| 04/08/2003 | US6544924 For producing ethylenically unsaturated acids or esters thereof, particularly methacrylic acid or alkyl methacrylates |
| 04/03/2003 | WO2003028125A2 Substituted pentacene semiconductors |
| 04/03/2003 | WO2003027050A2 Process for preparing pentacene derivatives |
| 04/03/2003 | WO2003027049A1 Method of extracting and method of purifying an effective substance |
| 04/03/2003 | WO2003026582A2 Method of preparing phenoxy alkanoic, alkenoic, and alkynoic acids and salts thereof via a dicarboxylate intermediate |
| 04/03/2003 | WO2002102766A3 Combretastatin a-3 prodrug |
| 04/03/2003 | WO2002076382A3 Preparation of polyaryl carboxylic acids |
| 04/03/2003 | US20030065229 Bactericides; oxidation resistance; antiinflammatory agents; antitumor agents |
| 04/03/2003 | US20030065218 Process for preparing sorbic acid from sorbic acid polyester |
| 04/03/2003 | US20030065217 Method for carbonylation of lower aliphatic alcohols using tin promoted iridium catalyst |
| 04/03/2003 | US20030065216 Vapor phase oxidation using (meth)acrolein using mixed oxide catalyst on supports |
| 04/03/2003 | US20030065215 By-product inhibition; distillation |
| 04/03/2003 | US20030065208 Triphenylphosphine derivative, production process therefor, palladium complex thereof, and process for producing biaryl derivative |
| 04/03/2003 | US20030065194 Method for producing maleic acid anhydride |
| 04/03/2003 | US20030065187 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds |
| 04/03/2003 | US20030062253 Purification apparatus provided with low heat conductive member |
| 04/02/2003 | EP1298120A2 Method for producing (meth)acrylic acid |
| 04/02/2003 | EP1296994A1 Ferrocenyl diphosphines and their use |
| 04/02/2003 | EP1296927A1 Preparation of (r)-2-alkyl-3-phenylpropionic acids |
| 04/02/2003 | EP1296925A1 Process for the production of vinyl acetate |
| 04/02/2003 | EP1296922A2 Method for manufacturing calcium salts of highly unsaturated fatty acids |
| 04/02/2003 | EP1296921A1 Cyclic ketones, their preparation and their use in the synthesis of amino acids |
| 04/02/2003 | EP1123265B1 Carbonylation of methanol in the presence of a rhodium/iridium/iodide ion catalytic system |
| 04/02/2003 | EP0961763B1 Preparation of olefinic compounds and carboxylic derivatives thereof |
| 04/02/2003 | EP0889022B1 Process for producing 2-hydroxynaphthalene-3,6-dicarboxylic acid |
| 04/02/2003 | EP0862548B1 Method for the development of delta-lactones and hydroxy acids from unsaturated fatty acids and their clycerides |
| 04/02/2003 | CN1407967A Stereoselective synthesis of cyclic amino acids |
| 04/02/2003 | CN1407965A Production of chlorocarboxylic acid chlorides |
| 04/02/2003 | CN1407964A Production of chlorocarboxylic acid chlorides |
| 04/02/2003 | CN1407963A Production of o-chloromethyl benzoic acid chlorides |
| 04/02/2003 | CN1407962A Continuous process for preparing lactic acid |
| 04/02/2003 | CN1407961A Preparation method of methacrylic acid |
| 04/02/2003 | CN1407960A Process and devices for hydrolytically obtaining carboxylic acid and alcohol from corresponding carboxylate |
| 04/02/2003 | CN1406923A Improved method of crystallization of pure terephthalic acid |
| 04/02/2003 | CN1406922A Pure multistage condensate injection |
| 04/02/2003 | CN1406921A Selective hydrogenation for preparing hexabydrobenzoic acid from benzoic acid |