| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 07/12/2006 | CN1263724C Process for producing dicarboxylic acids |
| 07/12/2006 | CN1263717C TMP/steam pressure filtration |
| 07/11/2006 | USRE39175 Microbial process for the preparation of acetic acid as well as solvent for its extraction from the fermentation broth |
| 07/11/2006 | US7074965 Diphosphine |
| 07/11/2006 | US7074957 Process for preparing (meth)acrylic anhydride |
| 07/11/2006 | US7074956 Hydrothermally synthesized catalysts comprising a mixed metal oxide are utilized to produce unsaturated carboxylic acids by the vapor phase oxidation of an alkane, or an alkene |
| 07/11/2006 | US7074955 Safe operation of a continuous heterogeneously catalyzed gas-phase partial oxidation of at least one organic compound |
| 07/11/2006 | US7074954 removing impurities from a crystallized product in a solid liquid displacement zone; good color and low impurity levels without the use of purification steps like hydrogenation or an impurity removal process. |
| 07/11/2006 | US7074953 by continuously introducing a solution of an aromatic carboxylic acid (benzoic acid) in an aprotic solvent (1,2-dichloroethane or 1,2-dichloropropane) in a closed vessel and passing in gaseous ammonia whose partial pressure is 0.1 to 3 bar; defined crystal size having a narrow size distribution. |
| 07/11/2006 | US7074872 Method of modifying components present in cashew nut shell liquid |
| 07/11/2006 | US7074838 Process for the catalytic oxidation of hydrocarbons |
| 07/11/2006 | CA2255973C Process for the selective production of acetic acid |
| 07/11/2006 | CA2154028C Process for purifying a carboxylic acid |
| 07/06/2006 | WO2006071407A1 Process for purification of aromatic carboxylic acids |
| 07/06/2006 | WO2006071025A1 Process for refining of 2,6-naphthalene dicarboxylic acid |
| 07/06/2006 | WO2006070632A1 Method for producing acetic acid |
| 07/06/2006 | WO2006069694A1 Method for producing phthalic anhydride |
| 07/06/2006 | WO2006069617A1 Process for transition metal-catalyzed asymmetric hydrogenation of acrylic acid derivatives, and a novel catalyst system for asymmetric transition metal catalysis |
| 07/06/2006 | WO2006054893A3 Process for the recovery of acids |
| 07/06/2006 | WO2006005269A3 Preparati0n of syngas for acetic acid synthesis by partial oxidation of methanol feedstock |
| 07/06/2006 | WO2005079320A3 Chlorendic anhydride/maleic anhydride compositions and method for preparing same |
| 07/06/2006 | US20060149100 Process for separating and recovering 3-hydroxypropionic acid and acrylic acid |
| 07/06/2006 | US20060149098 Subjecting slurry of potassium salt of 7-[1,2,6,7,8,8a(R)-hexahydro-2(S),6(R)-dimethyl-8(S)-hydroxy-1(S)-naphthyl]-3(R),5(R)-dihydroxyheptanoic acid and water-miscible solvent, to crystallization |
| 07/06/2006 | US20060149097 hydrogenating organic compounds by contacting with hydrogen-containing gas in presence of catalyst which comprises catalytically active metals applied to porous catalyst support; catalytically active metals having been derived via decomposed amine complex of metal on support |
| 07/06/2006 | US20060149087 Producing a fatty acid ester from an ester and an alcohol in contact with a solid acid catalyst |
| 07/06/2006 | US20060149084 Method for extracting 2-ketone-l-gulonic acid from a polar, preferably aqueous solvent |
| 07/06/2006 | US20060147378 Azulene dimer-quenched, near-infrared fluorescent probes |
| 07/06/2006 | US20060144686 Apparatus and method for handling easily polymerizable substance, apparatus for extracting liquid from apparatus under reduced pressure, and process for producing easily polymerizable substance |
| 07/06/2006 | DE112004001338T5 Feste, einem Metallionenaustausch unterzogene Materialien als Katalysatoren für die Arylierung und Skelettisomerisation von Fettsäuren und deren Alkylestern Solid, a metal ion-exchanged materials as catalysts for the arylation and Skelettisomerisation of fatty acids and alkyl esters thereof |
| 07/06/2006 | DE102004060493A1 Verfahren zur Herstellung von enantiomerenangereicherten 2-Fluorcarbonsäureestern A method for preparing enantiomerically enriched 2-fluorocarboxylic acid esters |
| 07/06/2006 | CA2590371A1 Process for purification of aromatic carboxylic acids |
| 07/06/2006 | CA2586527A1 Process for transition metal-catalyzed asymmetric hydrogenation of acrylic acid derivatives, and a novel catalyst system for asymmetric transition metal catalysis |
| 07/05/2006 | EP1551787A4 Method of producing trimellitic acid |
| 07/05/2006 | EP1458481B1 Processs FOR PRODUCING CARBOXYLIC ACID SALTS |
| 07/05/2006 | EP1278711B1 Process for the catalytic oxidation of hydrocarbons |
| 07/05/2006 | CN1798725A Supported metal-phosphine-aminophosphine catalysts |
| 07/05/2006 | CN1798724A Oxidation process for the production of carboxylic acids and alkenes |
| 07/05/2006 | CN1798607A Novel heteropolyacid catalyst and method for producing the same |
| 07/05/2006 | CN1796355A Method for preparing potassium benzate |
| 07/05/2006 | CN1796354A Method for eliminating sulfur dioxide in citrate solution enhanced by ultrasonic |
| 07/05/2006 | CN1796353A Process for the preparation of alicyclic carboxylic acids or derivatives thereof |
| 07/05/2006 | CN1796352A Method for continuous catalytic hydrogenation |
| 07/05/2006 | CN1795987A Catalyst of Mo, V, Te, Nb in use for reaction of producing crylic acid by selective oxidation of propane |
| 07/05/2006 | CN1795982A Sorbent of zeolite with carrying silver, preparation method and application |
| 07/05/2006 | CN1795848A Magnesium preparation of conjugate linoleic acid and preparation method |
| 07/05/2006 | CN1262531C Conjugated linoleic acid production |
| 07/05/2006 | CN1262530C Decomposition method of Michael-type additive |
| 07/05/2006 | CN1262529C Catalyst for preparing propionic acid by propionaldehyde oxidation and its method |
| 07/05/2006 | CN1262528C Method of production for (meth)acrylic acid |
| 07/04/2006 | US7071345 Solvent-free; using phase transfer catalyst; reacting fatty acid and alcohol |
| 07/04/2006 | CA2264611C Catalyst recovery |
| 06/29/2006 | WO2006069129A1 Method for the production of glycolic acid from ammonium glycolate by direct deammoniation |
| 06/29/2006 | WO2006069127A1 Method for the production of glycolic acid from ammonium glycolate by solvent extraction |
| 06/29/2006 | WO2006068472A1 Process for preparing aromatic carboxylic acids |
| 06/29/2006 | WO2006068471A1 Catalyst and method for preparing aromatic carboxylic acids |
| 06/29/2006 | WO2006068157A1 Process for producing acetic acid |
| 06/29/2006 | WO2006068118A1 Layered double hydroxide peelable in water, and production process and use thereof |
| 06/29/2006 | WO2006067171A1 A process for the hydrogenation of a lactone or of a carboxylic acid or an ester having a gamma-carbonyl group |
| 06/29/2006 | WO2006067109A1 Process for the mechanochemical synthesis of metal carboxylate |
| 06/29/2006 | WO2006066975A1 Hydroxycarbonylation of aryl and vinyl bromides |
| 06/29/2006 | WO2006066469A1 Production method of snow-melting agent of calcium acetate |
| 06/29/2006 | US20060142613 Process for producing (meth)acrylic acid |
| 06/29/2006 | US20060142611 Preparation of 1,3-diphenylprop-2-en-1-one derivatives |
| 06/29/2006 | US20060142599 Processes for the preparation and purification of hydroxymethylfuraldehyde and derivatives |
| 06/29/2006 | DE112005000007T5 Katalysator zur Partialoxidation und Verfahren zur Herstellung desselben A catalyst for partial oxidation thereof and methods for preparing |
| 06/29/2006 | CA2591796A1 A process for the hydrogenation of a lactone or of a carboxylic acid or an ester having a gamma-carbonyl group |
| 06/29/2006 | CA2591773A1 Catalyst and method for preparing aromatic carboxylic acids |
| 06/29/2006 | CA2591414A1 Process for preparing aromatic carboxylic acids |
| 06/28/2006 | EP1674443A1 Method of purifying dianhydrides |
| 06/28/2006 | EP1673334A2 Method for rectification separation of a liquid from an acrylic acid |
| 06/28/2006 | EP1673333A1 Drying of adipic acid |
| 06/28/2006 | EP0734372B2 Process for preparing aromatic carboxylic acids with efficient energy recovery |
| 06/28/2006 | CN2791044Y Device for producing terephthalic acid |
| 06/28/2006 | CN1795164A Process for the carbonylation of a conjugated diene |
| 06/28/2006 | CN1795161A Method for producing phthalic anhydride |
| 06/28/2006 | CN1795160A Production of aldehydes, carboxylic acids, and/or carboxylic acid anhydrides by means of catalysts containing vanadium oxide, titanium dioxide, and antimony oxide |
| 06/28/2006 | CN1795159A Process for the hydrocarboxylation of ethylenically unsaturated carboxylic acids |
| 06/28/2006 | CN1795049A Three-layered or four-layered catalyst systems for producing phthalic anhydride |
| 06/28/2006 | CN1795047A Process for producing catalyst for methacrylic acid production |
| 06/28/2006 | CN1795045A Oxidation of propane to give acrylic acid using catalysts in a mixture of crystalline phases |
| 06/28/2006 | CN1793104A Process for extracting high purity alpha-linolenic acid from pepper category and medicine application thereof |
| 06/28/2006 | CN1793103A Process for preparing calcium formate from recovered formylic acid in waste water of epoxy soybean oil |
| 06/28/2006 | CN1793102A Sodium benzoate and preparation process thereof |
| 06/28/2006 | CN1793101A Process for hydrothermal synthesizing bismuth citrate |
| 06/28/2006 | CN1793087A Total triterpenoid extract fine thim asterium sponge and its preparation process and application thereof |
| 06/28/2006 | CN1261423C Method for recovering refining benzene anhydride from rectified residue of benzene anhydride production |
| 06/28/2006 | CN1261403C Method for the preparation of a stable alkali metal lactate in powder form |
| 06/28/2006 | CN1261402C Process for producing fluorine compound through liquid phase fluorination |
| 06/27/2006 | US7067696 Process for producing (meth)acrolein or (meth)acrylic acid |
| 06/27/2006 | US7067695 Method of vapor phase catalytic oxidation using multitubular reactor |
| 06/22/2006 | WO2006064611A1 Process for purifying hydroxycarboxylic acid, process for producing cyclic ester, and process for producing polylhydroxycaboxylic acid |
| 06/22/2006 | WO2006064179A1 Process and intermediate compounds useful in the preparation of statins |
| 06/22/2006 | WO2006064178A1 Process and catalyst for the manuafacture of acetic acid |
| 06/22/2006 | WO2006063464A1 Process for preparing betulinic acid |
| 06/22/2006 | WO2006024630A8 Process for the production of [2- (4-fluoro-benzyl) -phenyl] -acetic acid |
| 06/22/2006 | US20060135813 Method for the heterogeneously catalyzed partial gas phase oxidation of propene into acrylic acid |
| 06/22/2006 | US20060135811 Separator, reactor, and process for producing aromatic carboxylic acid |
| 06/22/2006 | US20060135802 Industrial scale process; treats neurodegenerative diseases; high optical purity; less dangerous reaction |
| 06/22/2006 | US20060135801 Continuous process for the neutralization of surfactant acid precursors |
| 06/22/2006 | US20060135775 Intermediates and process for the production of optically active quinolonecarboxylic acid derivatives |