| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 04/05/2006 | CN1249012C Method for preventing poymerization of vinyl compound |
| 04/05/2006 | CN1249011C Process for producing fatty acid salt and livestock feed containing the fatty acid salt |
| 04/05/2006 | CN1249010C Process for preparing carboxylic acid |
| 04/05/2006 | CN1249007C Transporting method and transporting facility for easily polymerizable material |
| 04/05/2006 | CN1248992C Preparation of oligomer and monomer from tannin by catalytic hydrogen degradation |
| 04/04/2006 | US7022877 conducting a gas mixture comprising acrolein, molecular oxygen and an inert diluent gas through a fixed catalyst bed at elevated temperatures |
| 04/04/2006 | US7022876 Preparation of mandelic acid derivatives |
| 04/04/2006 | US7022310 Deuterated hydrogen in protein, radioactive carbon or nitrogen; bioassay of accurate analyzing the structure of the target high molecular weight protein; producing stable isotope-labeled fumaric acid, tartaric acid through esterification, oxidation, hydrolysis; chemical peptide synthesis |
| 04/04/2006 | US7022307 Method for gas—solid contacting in a bubbling fluidized bed reactor |
| 04/04/2006 | US7022161 Process using alumina agglomerates to eliminate organic oxygen-containing molecules present in an organic effluent |
| 04/04/2006 | CA2156929C Basic calcium/zinc mixed soaps |
| 03/30/2006 | WO2006032457A1 Peptide cyclisation |
| 03/30/2006 | WO2003062369A3 Expansion of renewable stem cell populations |
| 03/30/2006 | US20060069283 New process |
| 03/30/2006 | US20060069280 Contacting mixed metal oxide with liquid selected from organic acids, alcohols, inorganic acids and hydrogen peroxide; recovering insoluble material; calcining ; mixing with promoter (Au, Cu, Zn, Ag, Halogens) in solvent; removing solvent; calcining; unsaturated nitriles or acids from alkenes |
| 03/30/2006 | US20060069276 Method of making iron(III)gluconate complex |
| 03/30/2006 | US20060069274 Continuous production process for ethyl esters (biodiesel) |
| 03/30/2006 | US20060068989 Carbon-intersticed metallic palladium, palladium catalyst and method for preparation thereof, and method for producing alpha,beta-unsaturated carboxylic acid |
| 03/30/2006 | DE102004044687A1 Verfahren zur Herstellung von Metallcarboxylaten A process for producing metal carboxylates |
| 03/30/2006 | CA2581215A1 Peptide cyclisation |
| 03/29/2006 | EP1638915A2 Oxidation process for the production of carboxylic acids and alkenes |
| 03/29/2006 | EP1638911A2 Process for removal of acrolein from acrylonitrile product streams |
| 03/29/2006 | EP1638684A2 Mixed metal oxide catalysts for propane and isobutane oxidation and ammoxidation, and methods of preparing same |
| 03/29/2006 | CN1753858A Process for preparing 3-hydroxycarboxylic acids |
| 03/29/2006 | CN1753857A Method for producing optically active carboxylic acid |
| 03/29/2006 | CN1753726A Method for producing composite oxide catalyst |
| 03/29/2006 | CN1752065A Green chemical technology for producing chloracetyl chloride |
| 03/29/2006 | CN1752064A Preparation method of long chain fatty acid calcium salt |
| 03/29/2006 | CN1752060A Recovery method of byproduct methyl acetate in paraphthalic acid production |
| 03/29/2006 | CN1751796A Catalyst system for carbonylation of methanol for synthesizing ethanol, and application |
| 03/29/2006 | CN1247573C Method for preparing arylacetyl aminothiazole |
| 03/29/2006 | CN1247516C Production of aldoses |
| 03/29/2006 | CN1247515C Process for producing (meth)acrylic acid compound |
| 03/29/2006 | CN1247514C Hydroxy aluminium oxalate, and its preparing method and hydroxy aluminium oxalate as fire retardant |
| 03/29/2006 | CN1247513C Method for producing diamine and carboxylic diacid salt |
| 03/28/2006 | US7019170 Process for the recovery of lactic acid by contacting aqueous solutions containing the same with a basic organic extractant |
| 03/28/2006 | US7019169 Partial oxidation of a gas phase of propane(isobutane), oxygen and inert gas flowing through a fixed bed of catalytic mixed metal oxides based on molybdenum/vanadium where flow is interrupted at least once by continuing in another bed of metal oxides based on molybdenum, bismuth and iron; selectivity |
| 03/28/2006 | US7019168 Partially oxidizing a gas mixture of propene, oxygen and an inert gas over a first fixed catalyst bed having having a volume-specific activity; acrolein-containing product mixture oxidized over a second fixed catalyst bed; catalysts of annular-shaped are based on a molybenum/meltal oxide;efficiency |
| 03/28/2006 | US7019167 Process for producing alkanedicarboxylic acid |
| 03/28/2006 | US7019166 Method for the production of 2,4,5-trimethylphenyl acetic acid |
| 03/28/2006 | US7019165 Partial oxidation of a hydrocarbon feedstock by oxygen using a catalyst of metal salt of a polyoxoanion that has been activated by partial reduction and phase transformation; low temperature and pressure; high selection to maleic acid from propane; efficiency |
| 03/28/2006 | US7019152 Optical resolution using a racemic mixture [(1RS,2RS,4aSR,8aSR)-2-hydroxy-2,5,5,8a-tetramethyl-decahydronaphthalen-1-yl]acetic acid derivative as starting material to react with an optically actie enantiomer of 2-(methylamino)-1-phenyl-1-propanol; efficiency; synthesis of perfumery ingredient (-)-Ambrox |
| 03/28/2006 | US7018951 Annealed and promoted catalyst |
| 03/28/2006 | US7018818 Such as ethyl bicyclo[3.2.0]hept-2-en-6-ylideneacetate; synthesis |
| 03/28/2006 | US7018462 Uniformity, radiation resistance, heat resistance; racting organometallic compound and magnesium compound; forming magnesium oxide |
| 03/23/2006 | WO2006031422A2 Optimized liquid-phase oxidation |
| 03/23/2006 | WO2006029841A1 Method for producing metal carboxylates |
| 03/23/2006 | WO2006029822A1 Method for the extractive purification of (meth)acrylic acid using a separating agent |
| 03/23/2006 | WO2006029821A1 Purification of a distilled bottom product containing (meth)acrylic acid by means of a crystallization process |
| 03/23/2006 | WO2006029493A1 Process of production of ammonium niobium oxalate, ammonium niobium oxalate and use of the same |
| 03/23/2006 | WO2005090267A3 Methods to prepare carbon-isotope organohalides with high specific radioactivity from carbon-isotope monoxide |
| 03/23/2006 | US20060063951 Catalyst and process for production of acrylic acid |
| 03/23/2006 | DE102005045042A1 Verunreinigungsarmer Ameisensäure-Brennstoff für eine Direktflüssigkeitsbrennstoffzelle Pollution Poor formic acid fuel for direct liquid fuel cell |
| 03/23/2006 | CA2576341A1 Optimized liquid-phase oxidation |
| 03/22/2006 | EP1636162A1 Method for producing phthalic anhydride |
| 03/22/2006 | EP1636161A1 Production of aldehydes, carboxylic acids, and/or carboxylic acid anhydrides by means of catalysts containing vanadium oxide, titanium dioxide, and antimony oxide |
| 03/22/2006 | EP1635942A1 Apparatus for and method of producing aromatic carboxylic acids |
| 03/22/2006 | EP1635809A1 Resolution of alpha-(phenoxy)phenylacetic acid derivatives |
| 03/22/2006 | EP1411896B1 Surfactant compounds and uses thereof |
| 03/22/2006 | EP1317407B1 Method for the purification of alpha-hydroxy acids on an industrial scale |
| 03/22/2006 | CN1751017A Preparation of substituted phthalic anhydride, especially 4-chlorophthalic anhydride |
| 03/22/2006 | CN1751016A Method for producing (meth) acrylic acid derivative |
| 03/22/2006 | CN1751015A Method for producing aromatic carboxylic acid |
| 03/22/2006 | CN1750878A Catalyst for methacrylic acid production and process for producing the same |
| 03/22/2006 | CN1750877A Process for preparing vanadyl pyrophosphate catalyst |
| 03/22/2006 | CN1749234A Novel process for synthesizing cyclohexyl formic acid by benzoic acid hydrogenation |
| 03/22/2006 | CN1749233A Control method for p-xylene oxidation mother liquor circulation rate |
| 03/22/2006 | CN1749232A Process for preparing 2,4,5-triflorophenylacetic acid |
| 03/22/2006 | CN1749230A Vapor phase catalytic oxidation method using multipipe reactor |
| 03/22/2006 | CN1749175A Method for recovering aromatic carboxylic acid in waste water |
| 03/22/2006 | CN1748864A Multiphase catalyst composition |
| 03/22/2006 | CN1246287C Binaphthol derivative and method for producing same |
| 03/22/2006 | CN1246286C Method for recovering p-hydroxybenzoic acid from water drain of production of p-hydroxybenzoic acid |
| 03/22/2006 | CN1246285C Granule of parahydroxybenzoic acid or parahydroxybenzoic ester and process for producing same |
| 03/22/2006 | CN1246283C Production process of ammonium citrate |
| 03/22/2006 | CN1246282C Method for producing high-purity (methyl) acrylic acid |
| 03/22/2006 | CN1246281C Method for producing fluorine-containing compound |
| 03/22/2006 | CN1246280C Polyhalogen-substituted cinnamic acids and cinnamic acid derivatives and method for producing the same |
| 03/22/2006 | CN1246279C Method and device for the two-step production of acrylic acid |
| 03/22/2006 | CN1246269C Method for producing methacrolein from isobutane |
| 03/22/2006 | CN1246076C Free-flowing products comprising potassium formate |
| 03/22/2006 | CN1246060C Method for avoiding polymerization generation in film-type evaporator |
| 03/21/2006 | US7015357 Controlling the concentration of the adduct of two molecules of (meth)acrylic acid in the feed stream fed to a distillation column to be not higher than a certain specific level to avoid the undesirable polymerization of acrylic acid and clogging |
| 03/21/2006 | US7015356 Process for producing dicarboxylic acids |
| 03/21/2006 | US7015355 In the presence of a molybdenum- and palladium-containing catalyst |
| 03/21/2006 | US7015354 Heterogeneously catalyzed gas phase partial oxidation of propene or isobutene over a fresh fixed catalyst bed, in which the process is started up at a reduced hourly space velocity of charging gas mixture on the fixed catalyst bed |
| 03/21/2006 | US7015176 Process for the synthesis of aryl sulfurpentafluorides |
| 03/21/2006 | US7015173 High temperature mixing |
| 03/21/2006 | US7014736 Apparatus and process for purification of acrylic acid family |
| 03/16/2006 | WO2006028874A2 Optimized liquid-phase oxidation |
| 03/16/2006 | WO2006028873A2 Optimized liquid-phase oxidation |
| 03/16/2006 | WO2006028818A1 Crude terephthalic acid composition and production process thereof |
| 03/16/2006 | WO2006028817A2 Optimized liquid-phase oxidation |
| 03/16/2006 | WO2006028816A1 Optimized liquid-phase oxidation |
| 03/16/2006 | WO2006028815A2 Optimized liquid-phase oxidation |
| 03/16/2006 | WO2006028809A2 Optimized production of aromatic dicarboxylic acids |
| 03/16/2006 | WO2006028776A1 Method of synthesis of water soluble fullerene polyacids using a malonate reactant |
| 03/16/2006 | WO2006028773A2 Optimized purification production of terephthalic acid |
| 03/16/2006 | WO2006028772A2 Optimized liquid-phase oxidation |
| 03/16/2006 | WO2006028771A2 Optimized liquid-phase oxidation |