| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 08/07/2007 | US7253309 Method for production of methacrylic acid |
| 08/07/2007 | US7253308 high-load operation in the process for the continuous gas-phase oxidation; the heat of reaction is removed by a heat exchange composition flowing in heat exchanger plates |
| 08/07/2007 | US7253307 Process for production of methacrylic acid |
| 08/07/2007 | US7253304 Contacting dialkyl carbonate and a halide with carbon monoxide in the presence of a Group VIII metal catalyst to produce carbon dioxide and a carboxylic acid, an alkyl carboxylate ester, or a carboxylic acid anhydride |
| 08/07/2007 | US7253303 Treating with fluorine gas in a solvent of methanol or aqueous methanol to produce 2-fluoro- and 2,2-difluoro-1,3-diketones and -1,3-ketoesters |
| 08/07/2007 | US7253300 Production process for high purity tricyclo-[5.2.1.02,6]decane-2-carboxylic acid ester |
| 08/07/2007 | US7253299 Process for purifying n2-(1(s)-ethoxycarbonyl-3-phenylpropyl)-n6-thifluoroacetyl-l-lysine |
| 08/07/2007 | US7253194 Compounds and inhibitors of phospholipases |
| 08/07/2007 | US7252740 (per) fluoropolyether carboxylic acids and use thereof for the oleo-repellent paper sizing |
| 08/07/2007 | CA2287176C 3-cyano-2,4,5-trifluoro-benzoyl fluoride and intermediate products for the production thereof |
| 08/07/2007 | CA2247291C Azeotropic distillation process |
| 08/02/2007 | WO2007085792A1 Process for the production of acetic acid |
| 08/02/2007 | WO2007085791A1 Process for the production of acetic acid |
| 08/02/2007 | WO2007085790A1 Process for the production of acetic acid |
| 08/02/2007 | US20070179314 Bicyclo[4.3.0]nonane-3(4),7(8)-dicarboxylic acid and a process for its preparation |
| 08/02/2007 | US20070179313 Extraction tube protrudes from the side wall of the agitation vessel in a direction toward the interior to effect an eddy current; prevent sediment flow intotube; antiagglomerants; hydrolysis of dimethyl terephthalate to terephthalic acid; pressure differential; crystal growth inhibitors; antifouling |
| 08/02/2007 | US20070179312 Process for the purification of a crude carboxylic axid slurry |
| 08/02/2007 | US20070179303 Process for the preparation of alkylene carbonates |
| 08/02/2007 | US20070179298 Chemical process for the preparation of intermediates to obtain n-formyl hydroxy-lamine compounds |
| 08/02/2007 | CA2637479A1 Process for the production of acetic acid |
| 08/02/2007 | CA2637465A1 Process for the production of acetic acid |
| 08/02/2007 | CA2637325A1 Process for the production of acetic acid |
| 08/01/2007 | EP1813592A1 Cage-shaped cyclobutanoic dianhydrides and process for production thereof |
| 08/01/2007 | EP1813591A1 Bicyclo[4.3.0] nonan-3(4),7(8)-dicarbon acid and a method for its manufacture |
| 08/01/2007 | EP1813590A1 Process for recovering an ester |
| 08/01/2007 | EP1812363A1 Selective oxidation of organic compounds |
| 08/01/2007 | EP1366013B1 A process for the preparation of fibrates |
| 08/01/2007 | CN1329361C Catalyst for preparing acroleic acid and process for preparing same |
| 08/01/2007 | CN1329360C Preparation of substituted phthalic anhydride |
| 08/01/2007 | CN1329349C Safe operation of a continuous heterogeneously catalyzed gas-phase partial oxidation of at least one organic compound |
| 08/01/2007 | CN1329118C Method for preparing palladium/carbon catalyzer by hydrogenising and refining crude terephthalic acid |
| 08/01/2007 | CN1329117C Method for preparing hydrogenising selectively palladium/carbon catalyzer |
| 08/01/2007 | CN101010282A Crude terephthalic acid composition and production process thereof |
| 08/01/2007 | CN101010280A 优化的液相氧化 Optimized liquid phase oxidation |
| 08/01/2007 | CN101010279A 优化的液相氧化 Optimized liquid phase oxidation |
| 08/01/2007 | CN101010278A 优化的液相氧化 Optimized liquid phase oxidation |
| 08/01/2007 | CN101010277A 优化的液相氧化 Optimized liquid phase oxidation |
| 08/01/2007 | CN101010268A Optimized liquid-phase oxidation |
| 08/01/2007 | CN101010267A 优化的液相氧化 Optimized liquid phase oxidation |
| 08/01/2007 | CN101010135A 优化的液相氧化 Optimized liquid phase oxidation |
| 08/01/2007 | CN101010134A 优化的液相氧化 Optimized liquid phase oxidation |
| 08/01/2007 | CN101010132A 优化的液相氧化 Optimized liquid phase oxidation |
| 08/01/2007 | CN101010087A High yield and rapid synthesis method for processing organic metal salt |
| 08/01/2007 | CN101007757A Liquid-phase (amm)oxidation process |
| 08/01/2007 | CN101007756A Technical process of preparing high-purity L-lactic acid |
| 07/31/2007 | US7250529 Or salt thereof, by oxidation of 1-acetyl-3-hydroxyadamantane using permanganate oxidant in a liquid phase; use as a commercial chemical intermediate |
| 07/31/2007 | CA2362731C Silver or mercury exchanged macroporous organofunctional polysiloxane resins |
| 07/26/2007 | US20070173667 Process for producing (meth) acrylic acid |
| 07/26/2007 | US20070173666 Method for purifying and producing acrylic acid |
| 07/26/2007 | US20070173665 Purifying acrylic acid by crystallization, and storing the acid in a storage tank where it is filtered at 15 to 70 degrees C.; polymerization inhibition |
| 07/26/2007 | US20070173664 Preparation of methacrylic acid by reacting acetone cyanohydrin with sulfuric acid in the presence of water and a suitable polar solvent to form a solution of water, NH4HSO4 and 2-hydroxyisobutyric acid; extracting the acid in the presence of a metal salt of hydroxyisobutyric acid; dehydration |
| 07/26/2007 | US20070173663 Production and use of supported catalysts |
| 07/26/2007 | US20070173662 Catalyst for producing alpha, beta-unsaturated carboxylic acid and method for preparation thereof, and method for producing alpha, beta-unsaturated carboxylic acid |
| 07/26/2007 | US20070173656 Crystallization; desolventizing |
| 07/25/2007 | EP1810961A1 Method of co-producing olefins and diesters or diacids by homometathesis of unsaturated fatty bodies in non-aqueous ionic liquids |
| 07/25/2007 | EP1810960A1 Method of co-producing olefins and diesters or diacids from unsaturated fatty bodies |
| 07/25/2007 | EP1809595A1 Process for preparing aloe-emodin |
| 07/25/2007 | EP1718593B1 Stereoselective synthesis of a 4,4-disubstituted cyclohexanepropanoic acid |
| 07/25/2007 | EP1390340A4 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds |
| 07/25/2007 | EP1216083B1 Recovery process for volatile compounds from solids in aqueous solution |
| 07/25/2007 | EP1005465B1 New epothilone derivatives, method for producing same and their pharmaceutical use |
| 07/25/2007 | CN2926227Y Methane-acid condenser |
| 07/25/2007 | CN1328238C Preparation of 2,4,5-trifluo-benzoic acid |
| 07/25/2007 | CN1328237C Process for the synthesis of peptides containing a 4-hydorxy-proline substructure |
| 07/25/2007 | CN1328236C Oxidizing device for producing aromatic carboxylic acid |
| 07/25/2007 | CN1328235C Improed process of prepn. of linear aldehydes |
| 07/25/2007 | CN1327959C Method for producing precipitate and catalyst |
| 07/25/2007 | CN1327949C High-strength composite zeolite deioidining adsorbent and its preparing method |
| 07/25/2007 | CN101006041A Acetic anhydride and acetate ester co-production |
| 07/25/2007 | CN101006040A Method for producing aminothiazole derivative and production intermediate |
| 07/25/2007 | CN101006039A Method for producing 2-(4-fluoro-benzyl)-phenyl-acetic acid |
| 07/25/2007 | CN101006038A Method for the production of formic acid |
| 07/25/2007 | CN101005889A Optimized production of aromatic dicarboxylic acids |
| 07/25/2007 | CN101003479A Process for producing (meth) acrylic acid |
| 07/25/2007 | CN101003478A Method for purifying and producing acrylic acid |
| 07/25/2007 | CN101003477A Method for producing acrylic acid |
| 07/25/2007 | CN101003476A Technique for preparing disodium valproate |
| 07/25/2007 | CN101003475A Oxidizing reaction equipment without agitation for preparing aromatic acid |
| 07/25/2007 | CN101003474A Method for preparing glyoxylate |
| 07/25/2007 | CN101003473A Method for synthesizing crotonic acid by using byproduct of croton aldehyde |
| 07/25/2007 | CN101003472A Method for synthesizing crotonic acid by oxidizing croton aldehyde selectively |
| 07/24/2007 | US7247755 Process for producing α,α-bis(hydroxymethyl)alkanal |
| 07/24/2007 | US7247747 Isolating chlorosuccinic acid by cooling to 10-20 degrees C. to effect precipitation, where the acid has been prepared by reacting a suspension of aspartic acid in demineralized water containing NaCl with NaNO2 and aqueous HCl; mother liquors from previous reactions may be used as partial substitutes |
| 07/24/2007 | US7247745 Process for preparing 1,5-diaryl-3-substituted pyrazoles |
| 07/24/2007 | US7247739 Dispersing a short chain alcohol in a liquid raw material composed of fatty acids, oils, and/or fats and an acid catalyst or a basic catalyst to form a dispersion having a globule size of1 mu m - 50 mu m. |
| 07/24/2007 | US7247733 By halogen exchange reaction using specific guanidinium, phosphonium or sulfonium catalysts, e.g., diethylaminobis[tris(diethylamino)phosphazenyl]-sulfonium bromide, diethylaminobis(tetramethyl-guanidino)sulfonium bromide and (N,N-dimethylimidazolidino)tetramethyl-guanidinium chloride |
| 07/24/2007 | CA2250575C Process for the preparation of a granular microbial biomass and isolation of valuable compounds therefrom |
| 07/19/2007 | WO2007082087A2 Simultaneous recovery and continuous extraction of substantially pure carboxylic acids and ammonium salts from acid hydrolysis reaction mixtures |
| 07/19/2007 | WO2007081513A1 Oxidation system employing internal structure for enhanced hydrodynamics |
| 07/19/2007 | WO2007081507A2 Oxidation system with internal secondary reactor |
| 07/19/2007 | WO2007049148A3 Methods of preparing phenylacetic acid |
| 07/19/2007 | WO2006028816A8 Optimized liquid-phase oxidation |
| 07/19/2007 | US20070167649 Method for producing organic acid |
| 07/19/2007 | US20070167648 Process for the long-term operation of a heterogeneously catalyzed partial gas phase oxidation of an organic starting compound |
| 07/19/2007 | US20070167647 shell and tube; catalytic vapor phase oxidation |
| 07/19/2007 | US20070167642 Method of production of fatty acid alkyl esters and/or glycerine and fatty acid alkyl ester-containing composition |
| 07/19/2007 | US20070167638 provide advantages for controlling reactions and separating products, solvents or reactants in multiphase reactions |
| 07/19/2007 | US20070167520 purification of unsaturated polyfatty acid to stabilize and prevent reaction and oxidation; use as health dietetics |
| 07/19/2007 | US20070167321 Method for recovering molybdenum and method for preparing catalyst |
| 07/19/2007 | CA2635357A1 Oxidation system employing internal structure for enhanced hydrodynamics |