| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 05/17/2006 | EP1237847B1 Method for the stereoselective synthesis of cyclic amino acids |
| 05/17/2006 | CN2780308Y Reaction tower for continuously producing propionic acid |
| 05/17/2006 | CN1774412A Thermal rectification method and rectifying column |
| 05/17/2006 | CN1774295A Method for producing metal oxide catalyst |
| 05/17/2006 | CN1772724A Pentafluoro benzoic acid preparing process |
| 05/17/2006 | CN1772719A Self-heating reforming method used for acetic acid and methyl alcohol integhal production |
| 05/17/2006 | CN1772327A Waste liquid separating method for tetrahydro methyl phthalic anhydride production process |
| 05/17/2006 | CN1256316C Preparation process of malic acid |
| 05/17/2006 | CN1256315C Clean production process of fatty acid salt |
| 05/17/2006 | CN1256309C Improved method for preparing olefin, non-saturated carboxyl acid and non-saturated nitrile from alkyl |
| 05/16/2006 | US7045657 Comprises reacting unsaturated aldehyde (acrolein) with oxygen using fixed-bed multitubular reactor comprising molybdenum-/vanadium-oxide components to form acrylic acid |
| 05/16/2006 | US7045656 recycling catalysts in reaction for oxidation of cyclic alcohols and/or cyclic ketones to dicarboxylic acids, such as oxidation of cyclohexanol and/or cyclohexanone to adipic acid by treating solution comprising oxidation catalyst, before it is recycled, with ion-exchange resin |
| 05/16/2006 | US7045654 reacting salicylic acid with olefin at elevated temperature in presence of catalyst (perfluoroalkylsulfonic acid, alkylsulfonic acid, or acidic clay) |
| 05/16/2006 | US7045592 In situ chlorination, to generate amino acid chlorides, utilizing for solid phase peptide synthesis |
| 05/16/2006 | US7045540 Selective estrogen receptor modulators |
| 05/16/2006 | US7045482 Purification of 12-molybdophosphoric acid, 12-tungstophosphoric acid, 12-tungstosilicic acid, by dissolving in solvent, recrystallization, heating; catalyzing the oxidation of methacrolein |
| 05/11/2006 | WO2006049818A1 Process for removal of impurities from an oxidizer purge stream |
| 05/11/2006 | WO2006029841B1 Method for producing metal carboxylates |
| 05/11/2006 | WO2005123646A3 Fluoroorganic compounds and anti-fouling treatments |
| 05/11/2006 | WO2005030907A8 Radical interceptors as stabilizers of polymerizable compounds |
| 05/11/2006 | US20060100459 Method for preparing an unsaturated carboxylic acid |
| 05/11/2006 | US20060100452 Catalyst of nickel, silica, alumina and magnesium, formed by coprecipitation of sources of the elements, activating by optionally calcining and reducing at least part of the nickel content, and applying a protective coating to prevent oxidation; hydrogenating both clean and contaminated fatty oils |
| 05/11/2006 | US20060096159 Method for improving the long term stability of biodiesel |
| 05/11/2006 | DE19610356B4 Verfahren zum Reinigen von Essigsäure A method of purifying acetic acid |
| 05/11/2006 | CA2584324A1 Process for removal of impurities from an oxidizer purge stream |
| 05/11/2006 | CA2580363A1 Compositions for controlled delivery of pharmaceutically active compounds |
| 05/10/2006 | EP1654212A1 Process for separating and recovering 3-hydroxypropionic acid and acrylic acid |
| 05/10/2006 | EP1654211A1 Multi-metal oxide containing silver, vanadium and a promoter metal and use thereof |
| 05/10/2006 | EP1654061A1 Catalyst for gas phase oxidations |
| 05/10/2006 | EP1335880B1 Method for co-precipitating actinides and method for preparing mixed actinide oxides |
| 05/10/2006 | CN1771221A Process for the production of 2-hydroxy-4-methylthiobutyric acid ammonium salt |
| 05/10/2006 | CN1771220A Method for producing (meth)acrylic acid or (meth)acrolein |
| 05/10/2006 | CN1771213A Metal ion exchanged solid materials as catalysts for the skeletal isomerization of fatty acids and alkyl esters thereof |
| 05/10/2006 | CN1771085A Catalyst for oxidation or ammoxidation |
| 05/10/2006 | CN1769318A Polymeric resin compounds and their preparation |
| 05/10/2006 | CN1769262A 2-butyl -3-(4 -[3(dibutylamino) propoxy]benzoyl) -5-nitro -benzofuran hydrochloride and preparation thereof. |
| 05/10/2006 | CN1769257A Agricultural organic acid, organic acid preparation method and its preparing apparatus |
| 05/10/2006 | CN1768933A Method for producing a multi metal oxide catalyst, method for producing unsaturated aldehydes and/or carboxylic acids and band calcination device |
| 05/10/2006 | CN1255373C Vapor-phase carbonylation of lower alkyl alcohols using tungsten promoted group VIII catalyst |
| 05/10/2006 | CN1255371C Method for starting reactor, and reactor system |
| 05/10/2006 | CN1255370C Process for preparing propane diacid and its ester |
| 05/10/2006 | CN1255369C Process for branching of saturated and/or unsaturated fatty acids and/or alkyl esters thereof |
| 05/10/2006 | CN1255366C Method for acrylic aldehyde and propenoic acid |
| 05/10/2006 | CN1255213C Methanol carbonylation nickel lanthanum bimetal multiphase catalytic system and its manufacturing method and application |
| 05/09/2006 | US7041850 Process for producing purified (meth)acrylic acid |
| 05/09/2006 | US7041849 catalytic vapor-phase oxidation of propane, propylene, and/or acrolein and purifying the acrylic acid produced, adjusting viscosity at 20 degrees C. of the liquid to 2Pa*s (2,000 cP) or less and extracting polymerization inhibitor from liquid by using an aqueous medium |
| 05/09/2006 | US7041848 Method for oxidizing hydrocarbons into acids |
| 05/09/2006 | US7041847 Method for cleaning crude terephthalic acid and catalysts suitable for the same and containing carbon fibers |
| 05/09/2006 | US7041199 Process and device for hydrolytically obtaining a carboxylic acid alcohol from the corresponding carboxylate |
| 05/09/2006 | CA2187841C Process for preparing aqueous dispersion of higher fatty acid zinc salt |
| 05/04/2006 | WO2006046417A1 Method for producing 3,3,3-trifluoropropionic acid |
| 05/04/2006 | WO2006045518A1 Method for separating gas |
| 05/04/2006 | WO2006028754A3 Optimized liquid-phase oxidation |
| 05/04/2006 | WO2005087017A3 Compositions comprising reverse isomers of conjugated linoleic acid |
| 05/04/2006 | US20060094901 Process for the production of carboxylic acids |
| 05/04/2006 | US20060094900 Oxidation of cycloalkanes by oxygen to dicarboxylic acids using an oxidation catalyst and lipophilic solvent; solvent extraction of the diacid using countercurrent-flow in a liquid extraction column with water followed by extraction with the starting material; efficiency; purity; low temperature |
| 05/04/2006 | US20060094899 Process for preparing ruthenium-carrying alumina and process for oxidizing alcohol |
| 05/04/2006 | US20060094890 Process for producing biodiesel and the product thereof |
| 05/04/2006 | US20060093535 Reaction control method and control apparatus |
| 05/04/2006 | US20060090994 Method for purifying caprolactam |
| 05/04/2006 | DE10139967B4 Vorrichtung zur Gewinnung von gasförmigen Produkten durch katalytische Gasphasenreaktion Device for the recovery of gaseous products by catalytic gas phase reaction |
| 05/03/2006 | EP1651843A2 A process for energy recovery in processes for the preparation of aromatic carboxylic acids |
| 05/03/2006 | EP1651589A2 Process for production of acetyl anhydrides and optionally acetic acid from methane and carbon dioxide |
| 05/03/2006 | EP1651344A1 Reactor for partial oxidation with heat-transfer sheet modules |
| 05/03/2006 | EP1364040B1 Degradation of epothilones and ethynyl substituted epothilones |
| 05/03/2006 | EP1214328B1 Chiral phosphines, transition metal complexes thereof and uses thereof in asymmetric reactions |
| 05/03/2006 | EP1140355B1 Catalytic oxidation of alkanes to corresponding acids |
| 05/03/2006 | EP1109772B8 Process for the production of acetic acid |
| 05/03/2006 | CN2776978Y Dehydrogen apparatus |
| 05/03/2006 | CN1768022A Preparation of at least one partial oxidation and/or ammoxidation product of a hydrocarbon |
| 05/03/2006 | CN1765869A Long chain diprotic acid refining method |
| 05/03/2006 | CN1765868A Dimer acid purification method |
| 05/03/2006 | CN1765867A Sodium Diacetate production method |
| 05/03/2006 | CN1765502A Catalyst for oxidation reaction and its application therein |
| 05/03/2006 | CN1254464C Method for the production of acrylic acid by heterogeneously-catalysed gas-phase oxidation |
| 05/03/2006 | CN1254463C Flexible method for common production of formic acid, carboxylic acid having at least two carbon atoms, and/or derivatives of the same |
| 05/02/2006 | US7038082 Preparation of a multimetal oxide material |
| 05/02/2006 | US7038081 Catalytically oxidizing propylene and/or propane in a gaseous phase to generate reaction product, absorbing the reaction product in a solvent, and purifying acrylic acid from an acrylic acid aqueous solution containing solvent |
| 05/02/2006 | US7038080 Composite metal oxide catalyst |
| 05/02/2006 | US7038079 Polymerization polymerization; catalytic oxidation of propylene |
| 05/02/2006 | US7038075 Production method of racemic 3-hydroxy-3-(2-phenylethyl)hexanoic acid C1-6 alkyl ester |
| 05/02/2006 | US7038072 Alkylation of malonic ester, malononitrile; using carbonate and phase transfer agent |
| 05/02/2006 | US7038065 Partial oxidation of feedstock in the presence of oxygen, in one or more series connected reactors which constitues a cooling tube reactor with cooling tube for flowing coolant, and a catalyst is deposited as coating on outside the tube |
| 05/02/2006 | US7038061 Analgesics; anesthetics; antiinflammatory agents; central nervous system duisorders; strokes; antiarthritic agents; inflammatory bowel disorders |
| 05/02/2006 | US7037411 apparatus has strainers installed on upstream side of pump for extracting a liquid of a vacuum distillation column which distills and refines easily polymerizable substance; switching strainers can be performed with no trouble during operation of the column |
| 05/02/2006 | CA2315849C Quaternary ammonium and waterproofing/preservative compositions |
| 04/27/2006 | WO2006044926A2 SYNTHESIS OF FATTY ALCOHOL ESTERS OF α-HYDROXY CARBOXYLIC ACIDS AND THEIR USE AS PERCUTANEOUS ABSORPTION ENHANCERS |
| 04/27/2006 | WO2006043519A1 Cage-shaped cyclobutanoic dianhydrides and process for production thereof |
| 04/27/2006 | WO2006043075A1 Selective oxidation of organic compounds |
| 04/27/2006 | WO2006028874A3 Optimized liquid-phase oxidation |
| 04/27/2006 | WO2006028815A3 Optimized liquid-phase oxidation |
| 04/27/2006 | WO2006012046A3 Preparation of aminophosphines |
| 04/27/2006 | US20060089512 Method for reducing mehq content in acrylic acid |
| 04/27/2006 | US20060089469 Hydroxy diphosphines and their use in catalysis |
| 04/27/2006 | CA2582660A1 Synthesis of fatty alcohol esters of .alpha.-hydroxy carboxylic acids and their use as percutaneous absorption enhancers |
| 04/26/2006 | EP1650187A1 Optically active 2-allylcarboxylic acid derivative and process for producing the same |
| 04/26/2006 | EP1648952A2 Nutritional supplements and therapeutic compositions comprising (r)-3-hydroxybutyrate derivatives |
| 04/26/2006 | EP1648852A1 Method for producing substituted arylcarboxylic acid chlorides |
| 04/26/2006 | EP1648851A2 Preparation of metal salts of medium-chain fatty acids |
| 04/26/2006 | EP1648850A1 Method for producing triiodine trimesine acid |