| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 12/06/2007 | US20070280866 Cleaving Of Oligomeric (Meth) Acrylic Acid In A Liquid Phase Under Pressure |
| 12/05/2007 | EP1862445A1 Process for producing high-purity terephthalic acid |
| 12/05/2007 | EP1862442A1 Process for oxidation of organic compounds |
| 12/05/2007 | EP1861352A1 Method for producing optically active 3-phenylpropionic acid derivatives and follow-on products of the latter |
| 12/05/2007 | EP1861350A2 Optimized purification production of terephthalic acid |
| 12/05/2007 | EP1861349A1 Improved recovery of energy during the production of aromatic carboxylic acids |
| 12/05/2007 | EP1861348A2 Process and apparatus for manufacturing pure forms of aromatic carboxylic acids |
| 12/05/2007 | CN200984467Y Flash vaporizer in the technics of synthesizing acetic anhydride and acetic acid by carbonyl |
| 12/05/2007 | CN101082052A Acroleic acid production by biological catalysis |
| 12/05/2007 | CN101081811A Method for synthesizing C10 tertiary carbon acid |
| 12/05/2007 | CN101081810A Purification method of propenoic acid produced by biology catalysis |
| 12/05/2007 | CN100352797C Novel process for synthesizing cyclohexyl formic acid by benzoic acid hydrogenation |
| 12/05/2007 | CN100352543C Mixed metal oxide catalyst and process for production of acetic acid |
| 12/04/2007 | US7304191 Hydrogen fluoride is reacted with organic halogen-containing compound in presence of fluorination catalyst; preparation of fluoropolymers useful in manufacture of synthetic glass of high mechanical strength or in manufacture of optical fibres |
| 12/04/2007 | US7304187 Process for reducing the formaldehyde content of a gas |
| 12/04/2007 | US7304182 Crystalline parahydroxybenzoic acid anhydride and process for preparing the same |
| 12/04/2007 | US7304180 Process for producing metal oxide catalyst |
| 12/04/2007 | US7304179 Vapor phase catalytic oxidation of methacrolein in a fixed-bed multitubular reactor; each tube has at least 2 catalyst layers; reaction load ratio CRc(i) per unit mass of the catalyst in each reaction zone is 0.8 to 1.0. |
| 12/04/2007 | US7304178 Enriched isophthalic acid composition |
| 12/04/2007 | US7304176 Process for producing easily polymerizable substance |
| 12/04/2007 | US7304053 Glycoprotein-mediated MDR |
| 12/04/2007 | US7304014 Catalytically converting alkanes, alkenes to their corresponding oxygenates, including unsaturated carboxylic acids and esters thereof, by vapor phase oxidation; efficiency and selectivity |
| 12/04/2007 | CA2334023C Process for the recovery of fluorinated alkanoic acids from wastewater |
| 12/04/2007 | CA2282255C Improved method for producing crystalline carboxylic acids and apparatus therefor |
| 12/04/2007 | CA2175031C Process for the carbonylation of alkyl alcohols and/or reactive derivatives thereof |
| 11/29/2007 | WO2007135179A1 Chiral ligands used in transition metal catalysts for asymmetric addition reactions especially hydrogenation |
| 11/29/2007 | WO2007135109A1 Metal complexes comprising a ligand derived from 2-aryl-2-hydroxyacetic acid and a divalent or trivalent metal cation, and their use |
| 11/29/2007 | WO2007135072A1 Method for preventing fumaric acid deposits in the production of maleic acid anhydride |
| 11/29/2007 | WO2007135002A1 Catalyst system for the manufacture of carboxylic acids and/or carboxylic acid anhydrides |
| 11/29/2007 | WO2007134849A1 Use of, and method using a catalyst containing titanium dioxide, particularly for the production of phthalic anhydride |
| 11/29/2007 | WO2007134521A1 Apparatus and technology for preparing cyclohexanol, cyclohexanone and adipic acid by air oxidization of cyclohexane |
| 11/29/2007 | WO2007070302A3 Process for preparing conjugated linoleic acid and derivatives thereof from ricinoleic acid |
| 11/29/2007 | US20070276158 Reacting the carbon monoxide with chlorine to form phosgene and then optionally separating the phosgene from the hydrogen chloride-containing gas; hydrogen chloride-containing gas that is used preferably derives from a phosgenation or isocyanate forming reaction |
| 11/29/2007 | US20070276157 Propane is partially dehydrogenated in a reaction zone, hydrogen formed is incinerated partly to water and product gas is charged directly to another reaction zone, where propylene formed is partially oxidized; product removed; CO2 scrubbed from residual gas and discharged recycled to first reaction zone |
| 11/29/2007 | US20070276156 Process for producing aliphatic dicarboxylic acid compound |
| 11/29/2007 | US20070276155 Continuous process of the exothermic liquid phase oxidation of feedstock,p-xylene to terephthalic acid including utilizing the heat of oxidation efficiently to remove water from the exhaust gases by feeding to an expander to recover mechanical power and a dehyddrted monoacid and an aqueous overhead |
| 11/29/2007 | US20070276154 Processes for the production of organic isocyanates |
| 11/29/2007 | US20070276148 C12-24 fatty acids; optionally hydrogenation; cooling mixture to form crystals; separation of branched from straight chain fatty acids by dry fractionation |
| 11/29/2007 | US20070276138 Modulators of peroxisome proliferator activated receptors |
| 11/29/2007 | US20070275849 Catalyst For Gaseous Partial Oxidation Of Propylene And Method For Preparing The Same |
| 11/29/2007 | DE202007011042U1 Polymorphe Formen von Flupirtinmaleat Polymorphic forms of flupirtine maleate |
| 11/29/2007 | CA2653150A1 Chiral ligands used in transition metal catalysts for asymmetric addition reactions especially hydrogenation |
| 11/29/2007 | CA2647083A1 Method for preventing fumaric acid deposits in the production of maleic acid anhydride |
| 11/28/2007 | EP1860093A1 Method for ozonolysis of unsaturated compounds |
| 11/28/2007 | EP1860092A1 Method for producing naphthalenedicarboxylic acid |
| 11/28/2007 | EP1860091A1 Catalyst containing titanium dioxide, particularly for the production of phthalic anhydride |
| 11/28/2007 | EP1858833A1 Method of producing unsaturated acid from olefin |
| 11/28/2007 | EP1756131B1 Ferrocenyl ligands for homogeneous, enantioselective hydrogenation catalysts |
| 11/28/2007 | CN101080379A Process for preparing purified terephthalic acid |
| 11/28/2007 | CN101080378A Process for purifying hydroxycarboxylic acid, process for producing cyclic ester, and process for producing polylhydroxycaboxylic acid |
| 11/28/2007 | CN101080273A Catalyst and method for producing acetic acid |
| 11/28/2007 | CN101077857A Method for producing naphthalenedicarboxylic acid |
| 11/28/2007 | CN101077856A Method for preparing nonane diacid catalyzed by solid acid |
| 11/28/2007 | CN101077855A Technique and device for continuously dehydrogenating and producing sodium oxalate by dehydrogenation reaction remaining heat |
| 11/28/2007 | CN100351222C Rheinic acid preparing process |
| 11/28/2007 | CN100351221C Method and device for absorbing (methyl) acrylic acid |
| 11/27/2007 | US7301052 Process for producing perfluorodiacyl fluorinated compounds |
| 11/27/2007 | US7301051 Creatine salts and method of making same |
| 11/27/2007 | US7300953 Process for preparing nitrile compound, carboxylic acid compound or carboxylic acid ester compound |
| 11/27/2007 | US7300555 Method for the rectifying separation of liquids containing (meth)acrylic monomers in a rectification column |
| 11/22/2007 | WO2007133377A1 Process for driving gas blowers or fans in a solid-state polymerization process using steam from a terephthalic acid plant |
| 11/22/2007 | WO2007103064A8 Versatile oxidation byproduct purge process |
| 11/22/2007 | WO2007103047A3 Polycarboxylic acid production system with enhanced heating for oxidative digestion |
| 11/22/2007 | WO2007103040A3 Method and apparatus for drying carboxylic acid |
| 11/22/2007 | WO2007103025A3 Method and apparatus for drying carboxylic acid |
| 11/22/2007 | WO2007099450A3 Process for the preparation of 2-nitro substituted benzoic acids |
| 11/22/2007 | WO2007073492A3 Catalyst for oxidation of saturated and unsaturated aldehydes to unsaturated carboxylic acid, method of making and method of using thereof |
| 11/22/2007 | US20070270621 Method for Making Industrial Chemicals |
| 11/22/2007 | US20070270611 Gas phase oxidation of propylene in air after the water vapor has been removed from the air; absorption efficiency of acrylic acid is enhanced; high yields |
| 11/22/2007 | US20070270610 Process for producing (Meth)Acrylic Acid or (Meth)Acrolein |
| 11/22/2007 | US20070270609 Method for producing naphthalenedicarboxylic acid |
| 11/22/2007 | US20070270306 dehydrogenation of alcohols in the presence of doped hydrogenation catalysts, to form carboxylic acids and salts |
| 11/22/2007 | US20070269470 Oil base and external preparation containing same |
| 11/22/2007 | CA2649049A1 Process for the production of aromatic carboxylic acids in water |
| 11/21/2007 | EP1856021A1 Method for separating methacrolein from acrylic acid as the main constituent and from a liquid phase containing methacrolein as a minor constituent, in addition to a target product |
| 11/21/2007 | EP1856020A1 Method for the elimination of methacrylic acid from a liquid phase containing acrylic acid as a main component and target product and methacrylic acid as a secondary component |
| 11/21/2007 | EP1856019A1 Processes for producing aromatic dicarboxylic acids |
| 11/21/2007 | EP1856008A1 Process for preparing enantiopure e-(2s)-alkyl-5-halopent-4-enoic acids and esters |
| 11/21/2007 | EP1530559B1 Method and device for producing formic acid formates and use of said formates |
| 11/21/2007 | EP1490318B1 Liquid phase oxidation of halogenated ortho-xylenes |
| 11/21/2007 | EP1323460B1 Method of recovering fluorochemical surfactant |
| 11/21/2007 | EP0970087B1 A process for the preparation of a metal salt of clavulanic acid |
| 11/21/2007 | CN200978261Y Device for increasing adipic acid oxidation reaction capability |
| 11/21/2007 | CN101074190A Alpha-substituted 3,5-bisubsituted acrylic acid and its derivative, preparation and use |
| 11/21/2007 | CN100349848C Method for converting sodium gulonate to gulonic acid in Vit C production |
| 11/21/2007 | CN100349846C Flexible method for the joint production of (i) formic acid, (ii) a carboxylic acid comprising at least two carbon atoms and/or the derivatives thereof, and (iii) a carboxylic acid anhydride |
| 11/21/2007 | CN100349648C Method for vapor phase catalytic oxidation |
| 11/20/2007 | US7297814 Multitube reactor, vapor phase catalytic oxidation method using the multitube reactor, and start up method applied to the multitube reactor |
| 11/15/2007 | WO2007130346A1 Aparatus and method for producing biodiesel fuel |
| 11/15/2007 | WO2007130142A1 Process for synthesizing a heteropoly acid catalyst for oxidation of unsaturated aldehydes to unsaturated carboxylic acid |
| 11/15/2007 | WO2007129669A1 Method of crystallization |
| 11/15/2007 | WO2007129023A1 Mixing apparatus |
| 11/15/2007 | WO2007128955A1 Process for the preparation of carbonylation products |
| 11/15/2007 | WO2007128918A1 Method for purification of an organic acid by chromatography |
| 11/15/2007 | WO2007103039A3 Versatile oxidation byproduct purge process |
| 11/15/2007 | WO2007102105A3 Method for preparing an organic amine-lactic acid complex |
| 11/15/2007 | WO2007024917A3 HIGHLY PHOTOCATALYTIC PHOSPHORUS-DOPED ANATASE-TiO2 COMPOSITION AND RELATED MANUFACTURING METHODS |
| 11/15/2007 | WO2006126206A3 Production of biodiesel from balanites aegyptiaca |
| 11/15/2007 | US20070265467 Catalytic process for preparing aliphatic straight-chain and beta-alkyl-branched carboxylic acids |
| 11/15/2007 | US20070262022 Separating Tray for a Distillation Column |