| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 08/19/2009 | CN100528826C Oxidation device for preparing terephthalic acid derived from dimethylbenzene oxidation |
| 08/19/2009 | CN100528823C Process for producing diene compound |
| 08/19/2009 | CN100528759C Method for producing dichromium trioxide and ferrous oxalate by carbon ferro-chrome |
| 08/19/2009 | CN100528361C Method for the production of catalytically active multielement oxide materials containing at least one of the elements nb and w as well as elements Mo, V, and Cu by means of a thermal treatment |
| 08/18/2009 | US7576236 Utilization of acetic acid reaction heat in other process plants |
| 08/18/2009 | US7576043 having branched aliphatic chains used as reversible well bore fluid thickeners to recover hydrocarbon oil and gas; oil soluble; soluble in both organic and aqueous fluids; high speed breakdown of viscoelastic sols |
| 08/18/2009 | US7575728 For reacting together of at least two principal step reaction components, with or without at least one catalyst component using of motion augmented sub- Kolmogoroff micro-agitation; separation; supplying reactant to subsequent step |
| 08/18/2009 | US7575660 energy efficient purification of toluenediamines; free of water |
| 08/18/2009 | CA2466999C Extraction process for removal of impurities from mother liquor in the synthesis of carboxylic acid |
| 08/18/2009 | CA2428308C Process for preparing acetic acid |
| 08/13/2009 | WO2009099043A1 Catalyst for methacrylic acid production, method for producing the same, and method for producing methacrylic acid |
| 08/13/2009 | WO2009098422A1 Improved method for preparing (meth)acrylic anhydride |
| 08/13/2009 | WO2009098286A1 Metal lactate powder and method for preparation |
| 08/13/2009 | WO2009022237A9 Process for the recovery of oxidation catalyst using ion exchange resins |
| 08/13/2009 | US20090203938 Use of phosphoric esters as deposit control agents during the synthesis, purification or regeneration of (meth)acrylic monomers |
| 08/13/2009 | US20090203937 Process for preparing l- (+) -lactic acid |
| 08/13/2009 | US20090203936 Synthesis of 3-(5-nitrocyclohex-1-enyl) acrylic acid and esters thereof |
| 08/13/2009 | US20090199460 Biodiesel purification by a continuous regenerable adsorbent process |
| 08/12/2009 | EP2086919A1 Process for the synthesis of hydroxy aromatic acids |
| 08/12/2009 | EP2086918A1 Process for the synthesis of 2,5-dihydroxyterephthalic acid |
| 08/12/2009 | EP2086917A1 Process for the synthesis of hydroxy aromatic acids |
| 08/12/2009 | EP2086916A1 Process for the synthesis of hydroxy aromatic acids |
| 08/12/2009 | EP1515714B1 Long chain unsaturated oxygenated compounds and their use in the therapeutical, cosmetic and nutraceutical field |
| 08/12/2009 | EP1250305B1 Waste water treatment in a method for producing formic acid which is free of water |
| 08/12/2009 | CN101506137A Purification of acetic acid |
| 08/12/2009 | CN101506136A Perfluorocarboxylic acid salt and process for producing it |
| 08/12/2009 | CN101503353A Technique for purifying crude terephthalic acid from alkali deweighting wastewater |
| 08/12/2009 | CN101503352A Preparation of 4-substited-trans cyclohexyl aminic acid |
| 08/12/2009 | CN101503350A Method for recycling acid and valuable metal from oxalic acid wastewater |
| 08/12/2009 | CN101503349A Comprehensive utilization technique for Vc waste liquor in oxalic acid production |
| 08/12/2009 | CN101503348A Method for producing copper acetate by pure oxygen one-step method |
| 08/12/2009 | CN101503347A Multifunctional tower for carbonyl synthesis process of acetic acid |
| 08/12/2009 | CN101503346A Method and apparatus for synthesizing acetic acid by methanol low-voltage carbonylation |
| 08/12/2009 | CN101502806A Supported non-precious metal catalyst for synthesizing acetic anhydride as well as production method and use |
| 08/12/2009 | CN101502805A Catalyst for preparing acetic anhydride as well as preparation method and application |
| 08/12/2009 | CN101502801A Active carbon supported nickel catalyst for synthesizing ethylformic acid and preparation method thereof |
| 08/12/2009 | CN100526284C Recovering device for oxidization low pressure end gas in process of preparing terephthalic acid |
| 08/12/2009 | CN100526283C Production of 3,3-dimethyl-butyrylchlorine |
| 08/12/2009 | CN100526282C Stannous benzoate synthesis method |
| 08/12/2009 | CN100526281C Method of synthesizing 3-methoxy-4-dydroxymandelic acid or 3-ethoxy-4-dydroxymandelic acid by acetaldehyde acid method |
| 08/12/2009 | CN100526276C Process of preparing dipentaerythritol and/or tripentaerythritol |
| 08/12/2009 | CN100526223C Mtehod for co-precipitating actinides and method for preparing mixed actinide oxides |
| 08/12/2009 | CN100525910C Catalyst system for synthesizing acetic acid by methanol low-pressure carbonylation and its application |
| 08/11/2009 | US7572942 Contact perfluoroalkyl metallic compound with carbon dioxide to generate carboxylic acid; contact acid with fluorinating agent; contact product with trifluorooxirane and fluoride ion source; contact with metal halide and heat; track environmental, biological fate of perfluoroalkyls decomposition products |
| 08/11/2009 | US7572936 Optimized liquid-phase oxidation |
| 08/11/2009 | US7572932 Optimized liquid-phase oxidation |
| 08/11/2009 | CA2174060C Inhibition of unsaturated monomers with 7-aryl quinone methides |
| 08/06/2009 | WO2009095624A2 Method for preparing dicaffeoylquinic acids and use thereof in combating aphids |
| 08/06/2009 | WO2009095216A2 Catalyst for the catalytic gas phase oxidation of aromatic hydrocarbons to form aldehydes, carboxylic acids and/or carboxylic acid anydrides, in particular phthalic acid anhydride |
| 08/06/2009 | WO2009095111A1 Process for preparation of high purity methacrylic acid |
| 08/06/2009 | US20090198084 Process for the deprotection of protected amines |
| 08/06/2009 | US20090198071 Tetraphosphorus ligands for catalytic hydroformylation and related reactions |
| 08/06/2009 | CA2712645A1 Method for preparing dicaffeoylquinic acids and use thereof in combating aphids |
| 08/05/2009 | EP2085376A1 Process for preparation of high purity methacrylic acid |
| 08/05/2009 | EP2085375A1 Process for the production of acetic acid and/or methyl acetate in the presence of a zeolite of structure type MOR |
| 08/05/2009 | EP2085373A1 Method for producing carbonyl compound an pro-oxidant used for production of carbonyl compound |
| 08/05/2009 | EP2084120A1 Method of separating the acrylic acid from benzoic acid contained in a product gas mixture from a heterogeneously catalyzed gas phase partial oxidation of a c3-precursor compound of acrylic acid |
| 08/05/2009 | EP1979302B1 Process for the production of acetic acid |
| 08/05/2009 | EP1861349B1 Improved recovery of energy during the production of aromatic carboxylic acids |
| 08/05/2009 | EP1748041B1 Process for producing (meth)acrolein or (meth)acrylic acid |
| 08/05/2009 | EP1583730B1 Novel process for preparing a 5-hydroxy-3-oxo-hexanoic acid derivative |
| 08/05/2009 | EP1296922B1 Method for manufacturing calcium salts of highly unsaturated fatty acids |
| 08/05/2009 | CN101501100A Process for driving gas blowers or fans in a solid-state polymerization process using steam from a terephthalic acid plant |
| 08/05/2009 | CN101501099A Polymer having bis(diphenylphosphino)binaphthyl group |
| 08/05/2009 | CN101500979A Removing permanganate-reducing impurities from acetic acid |
| 08/05/2009 | CN101497633A Method for preparing isosteviol and sophorose at the same time |
| 08/05/2009 | CN101497566A Preparation of 2,5-bis(2,2,2-trifluoro ethoxy) benzene carbonic acid |
| 08/05/2009 | CN101497564A Method for synthesizing aliphatic alcohol polyethenoxy ether carboxylate |
| 08/05/2009 | CN100522920C Method for preparing 4-bromine 2,6-difluoro benzoic acid |
| 08/05/2009 | CN100522919C Method of hydrogenation for benzoic acid |
| 08/05/2009 | CN100522918C Removal of permanganate reducing compounds from methanol carbonylation process stream |
| 08/05/2009 | CN100522917C Process of separating acetylpropionic acid with active carbon |
| 08/05/2009 | CN100522916C Removal of permanganate reducing compounds from methanol carbonylation process stream |
| 08/05/2009 | CN100522915C Process for isolating crude terephthalic acid(CTA) |
| 08/05/2009 | CN100522914C Staged countercurrent oxidation |
| 08/05/2009 | CN100522897C Cyclohexane oxidation reactor |
| 08/05/2009 | CN100522364C Catalyst and preparation process of the catalyst and its ligand, acetic acid and acetic anhydride |
| 08/05/2009 | CN100522362C Double active species catalyst and its application |
| 08/05/2009 | CN100522152C Cinnamic acid dimers, their preparation and the use thereof for treating neurodegenerative disease |
| 08/04/2009 | US7569722 from a mother liquor produced in the synthesis of carboxylic acid, typically terephthalic acid to remove impurities benzoic acid; evaporation to produce a vapor stream and a super concentrated purge slurry; filtering purge slurry to form filter cake and mother liquor; purification |
| 08/04/2009 | US7569609 Treating Alzheimer's disease with 2-propylpentanoic acid (valproic acid) or salts thereof; improving the GABAA receptor responses |
| 08/04/2009 | US7569608 Pentanoic acid derivatives |
| 08/04/2009 | US7569535 11-methyl-13-tridecanolide, 12-methyl-14-tetradecanolide and 13-methyl-15-pentadecanolide, perfume compositions containing the same, and process for production of compounds including the same |
| 08/04/2009 | US7568361 Carried out in a bubble column reactor that provides for a highly efficient reaction at relatively low temperatures; oxidizing p-xylene to form terephthalic acid that can be purified more easily that if higher temperatures were required. |
| 07/30/2009 | WO2009093862A2 Environmentally friendly method for preparing terephthalic acid employing multistep oxidations |
| 07/30/2009 | WO2009092736A1 Process of separation of glyoxylic acid from an aqueous reaction medium containing glyoxylic acid and hydrochloric acid |
| 07/30/2009 | WO2009092734A1 Process of preparation of glyoxylic acid aqueous solution |
| 07/30/2009 | WO2009063176A4 Process for the production of alcohol from a carbonaceous feedstock |
| 07/30/2009 | WO2008126104A3 Novel process for preparation of adapalene |
| 07/30/2009 | US20090192333 Process for the preparation of acid halides |
| 07/30/2009 | US20090192332 Method for Preparing Isoprenyl Cysteine Compounds and Analogs Thereof |
| 07/30/2009 | US20090188869 Multi-layered macromolecules and methods for their use |
| 07/29/2009 | EP2081883A2 Process for preparing fluorinated acids |
| 07/29/2009 | EP2081879A2 Synthesis of isotopically labeled alpha-keto acids and esters |
| 07/29/2009 | EP2081684A1 Improved maleic anhydride catalyst and method for its preparation |
| 07/29/2009 | EP1654212B1 Process for separating and recovering 3-hydroxypropionic acid and acrylic acid |
| 07/29/2009 | CN201280529Y Methanol low-pressure carbonylation reaction device |
| 07/29/2009 | CN101495440A Method for purifying hydroxycarboxylic acid, method for producing cyclic ester, and method for producing polyhydroxycarboxylic acid |
| 07/29/2009 | CN101495439A Aqueous solutions of organic acid chromium(III) salts and process for preparation thereof |
| 07/29/2009 | CN101495438A Preparation of acetic acid |