| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 04/03/2013 | CN103008009A Rhodium catalyst with organic metal nickel salt as ligand as well as preparation method and application of rhodium catalyst |
| 04/03/2013 | CN103007997A Catalyst for preparing crylic acid by lactic acid and method for preparing crylic acid by using same |
| 04/03/2013 | CN102617335B Process for synthesizing p-tert-butylbenzoic acid |
| 04/03/2013 | CN102390877B Treatment method of calcium hydrogen citrate washes and preparation method of citric acid |
| 04/03/2013 | CN102371192B Preparation method of deiodination agent |
| 04/03/2013 | CN102260163B Method for recovering lactic acid from marigold fermentation wastewater |
| 04/03/2013 | CN102166531B A catalyst system for acetic acid synthesis through methanol carbonylation and an application of the catalyst system |
| 04/03/2013 | CN102161619B Ferulic acid Jiangtang compound salt as well as preparation method and application thereof |
| 04/03/2013 | CN102139230B Method for preparing TiO2-C composite carrier for p-carboxybenzaldehyde hydrogenation process |
| 04/03/2013 | CN102001934B Method for preparing 7-hydroxydehydroabietic acid |
| 04/03/2013 | CN102001903B Method for reducing carbon-carbon double bond by hydrazine hydrate through microwave |
| 04/03/2013 | CN101979394B A method to inhibit ethylene responses in plants |
| 04/03/2013 | CN101844976B Method for preparing butanedioic acid under catalytic hydrogenation |
| 04/03/2013 | CN101747176B Method for preparation of trifluoro acetyl chloride with trifluoroethane chlorinated mixture |
| 04/03/2013 | CN101573319B Process for preparing 1-(2-ethyl-butyl)-cyclohexanecarboxylic acid |
| 04/03/2013 | CN101570479B Method for preparing glutaric acid through oxidation of glutaral pentanedial |
| 04/03/2013 | CN101528658B Process for preparing acrylic acid purified by crystallization from hydroxypropionic acid and apparatus thereof |
| 04/03/2013 | CN101434534B Preparation of salvianic acid A sodium pure product |
| 04/03/2013 | CN101385905B Method for continuously separating target product X in form of fine crystallized product |
| 04/03/2013 | CN101381302B 2-bromomethyl-6-methyl benzoyl chloride/bromium and preparation method thereof |
| 04/03/2013 | CN101186568B Process for preparing (meth)acrylic acid |
| 04/02/2013 | USRE44125 Adsorption of volatile organic compounds derived from organic matter |
| 04/02/2013 | US8410308 Process for production of oxygen-containing organic compound |
| 04/02/2013 | CA2590371C Process for purification of aromatic carboxylic acids |
| 03/28/2013 | WO2013042760A1 Method for producing succinic acid |
| 03/28/2013 | WO2013040723A1 Method for preparing 2-propylheptanoic acid |
| 03/28/2013 | WO2012164573A3 Hydrolysis and esterification with acid catalysts in an ionic liquid system |
| 03/28/2013 | US20130079554 Methods for the synthesis of deuterated acrylate salts |
| 03/28/2013 | US20130079553 Catalysts for producing acrylic acids and acrylates |
| 03/28/2013 | US20130079551 Recovery of aromatic carboxylic acids and oxidation catalyst |
| 03/28/2013 | US20130079548 Process to produce alkenoic acid esters from lactones |
| 03/28/2013 | US20130079545 Substituted cyclohexane-1, 3-dione compounds, process for preparation thereof and its applications |
| 03/28/2013 | DE10295317B4 Kolonne mit Dual-Flow-Böden Column with dual-flow trays |
| 03/28/2013 | DE102011083285A1 Ozonolyse von ungesättigten Fettsäuren und Derivaten davon Ozonolysis of unsaturated fatty acids and derivatives thereof |
| 03/27/2013 | EP2573062A1 Ozonolysis of unsaturated fatty acids and derivatives of same |
| 03/27/2013 | EP2571842A2 Production of aromatic carboxylic acids |
| 03/27/2013 | EP2571841A1 Process and system for the separation and drying of carboxylic acid crystals |
| 03/27/2013 | EP2571840A1 Processes for producing diaminobutane (dab), succinic dinitrile (sdn) and succinamide (dam) |
| 03/27/2013 | EP2571839A1 Processes for producing diaminobutane (dab), succinic dinitrile (sdn) and succinamide (dam) |
| 03/27/2013 | EP2571838A1 Processes for producing hooc-r-cooh compound acids from fermentation broths containing nh4+-ooc-r-coq-nh4+ compounds |
| 03/27/2013 | EP2571837A1 Processes for producing nh4+ -ooc-r-cooh compounds from fermentation broths containing nh4+ -ooc-r-coo-nh4+compounds and/or hooc-r-cooh compound acids, and conversion of nh4+ -ooc-r-cooh compounds to hooc-r-cooh compound acids |
| 03/27/2013 | CN202829998U Separating equipment for separation and extraction of alpha-linolenic acid |
| 03/27/2013 | CN202829993U Linolenic acid extraction equipment |
| 03/27/2013 | CN202829886U Device with separation system capable of producing benzoic acid from TA residues |
| 03/27/2013 | CN202823398U Device for recycling activated carbon in production of Aspirin |
| 03/27/2013 | CN202823327U Gas liquid reaction device suitable for ammonium propionate solution |
| 03/27/2013 | CN102993229A Amphoteric electrolyte-modified hybrid silica gel material and solid-phase extraction method thereof |
| 03/27/2013 | CN102993002A 3, 4-dihydroxy benzoic acid Cu-Zr double metal salts and preparation method and application thereof |
| 03/27/2013 | CN102993001A Preparation of 4-biphenylacetic acid by palladium-catalyzed carbonylation |
| 03/27/2013 | CN102993000A Method and apparatus for producing PTA via deep oxidation by using oxygen-deficient gas |
| 03/27/2013 | CN102992999A Matched filtering and washing method for crude m-phthalic acid in oxidation unit of refined m-phthalic acid device |
| 03/27/2013 | CN102992998A Preparation method of ferrous gluconate |
| 03/27/2013 | CN102992997A New medical salt of dexibuprofen |
| 03/27/2013 | CN102992996A Preparation method of acrylic acid |
| 03/27/2013 | CN102992995A Method for quickly synthesizing ferric stearate |
| 03/27/2013 | CN102992994A Preparation technology of high-purity pharmaceutical-grade magnesium stearate |
| 03/27/2013 | CN102992993A Acetic acid+water azeotropic-rectification energy-saving consumption-reduction method by adding heat pump |
| 03/27/2013 | CN102992992A Method for preparing bicyclo[2.2.1]-hept-5-ene-2,3-dicarboxylic acid disodium |
| 03/27/2013 | CN102992991A Synthesis process for trifloxystrobin intermediate 2-methyl-alpha-carbonyl phenylacetic acid |
| 03/27/2013 | CN102992990A Method for preparing optical homochiral alpha hydroxyl alkyl carboxylic acid |
| 03/27/2013 | CN102992949A Industrialized recycling method for o-chlorobenzaldehyde residual liquor |
| 03/27/2013 | CN102989494A Special benzene-oxidation gas phase fixed-bed catalyst for fumaric acid |
| 03/27/2013 | CN102989487A After-treatment method for molybdenum vanadium tellurium niobium catalyst |
| 03/27/2013 | CN102989480A Composite multi-metal oxide catalyst and preparation method thereof |
| 03/27/2013 | CN102989479A Selective oxidation catalyst and preparation method thereof |
| 03/27/2013 | CN102989474A Unsaturated aldehyde oxidation catalyst and preparation method thereof |
| 03/27/2013 | CN102989473A Catalyst for preparing unsaturated acid by using unsaturated aldehyde, and preparation method thereof |
| 03/27/2013 | CN102989194A Crystallizing tank |
| 03/27/2013 | CN102344220B Method for treating metronidazole waste water |
| 03/27/2013 | CN102229806B Green circular economy technology with coal coking as the main part |
| 03/27/2013 | CN102070433B Preparation method for aryl acetic acid derivative |
| 03/27/2013 | CN102049261B Method for preparing catalyst of acrolein by propylene oxidization |
| 03/27/2013 | CN102001929B Method for co-producing formic acid and acetic acid |
| 03/27/2013 | CN101942530B Method for pretreating straw pentose hydrolyzate for fermentation |
| 03/27/2013 | CN101759556B Synthesis method of ketoprofen |
| 03/27/2013 | CN101747172B Method for recycling acetic acid and catalysts in preparation process of 2,6-naphthalene dicarboxylic acid |
| 03/27/2013 | CN101723819B Method for synthesizing tall oil fatty acid cobalt by taking floating oil fatty acid as raw material |
| 03/27/2013 | CN101712613B Method for de-iodinating and refining acetic acid |
| 03/27/2013 | CN101648864B Purification method of citric acid fermentation broth |
| 03/27/2013 | CN101643402B Method for preventing oxidation rancidity and color recovery of oleic acid |
| 03/27/2013 | CN101631615B Mixed oxide catalysts made of hollow shapes |
| 03/27/2013 | CN101607887B Method for cleanly producing lactic acid by fermentation method |
| 03/27/2013 | CN101348431B Method for producing low lead light density granular calcium citrate |
| 03/27/2013 | CN101244999B Process for producing terephthalic acid |
| 03/26/2013 | US8404889 Process for producing acrolein and acrylic acid |
| 03/26/2013 | US8404888 Process for producing acrylic acid |
| 03/26/2013 | US8404887 Process for producing acrylic acid |
| 03/26/2013 | US8404875 Method for preventing the oxidation of lipids in animal and vegetable oils and compositions produced by the method thereof |
| 03/26/2013 | US8404741 Glycine chroman-6-sulfonamides for use as inhibitors of diacylglycerol lipase |
| 03/26/2013 | CA2493171C Methods for the preparation of polyol esters that are light in color |
| 03/21/2013 | WO2013039716A1 Process for preparing modified v-ti-p catalysts for synthesis of 2,3-unsaturated carboxylic acids |
| 03/21/2013 | WO2013039715A1 PROCESS FOR PREPARING V-Ti-P CATALYSTS FOR SYNTHESIS OF 2,3-UNSATURATED CARBOXYLIC ACIDS |
| 03/21/2013 | WO2013039647A1 Processes for producing carboxylic acids from fermantation broths containing their ammonium salts |
| 03/21/2013 | WO2013039288A1 Device and method for separating off water and recovering a carboxylic acid from reactor discharge during an aromatic compound oxidation reaction using energy donating coupled distillation |
| 03/21/2013 | WO2013037298A1 Method for reusing water in fermented butanedioic acid separation process |
| 03/21/2013 | WO2013037136A1 Process for preparation of methacrylic acid and methacrylic acid esters |
| 03/21/2013 | WO2013037135A1 Process for reclaiming methacrylic acid from a high-boiler phase and an aqueous phase |
| 03/21/2013 | WO2013037134A1 Process for preparation of methacrylic acid and methacrylic acid esters |
| 03/21/2013 | WO2013037133A1 Process for preparing methacrylic acid and/or alkyl methacrylates |
| 03/21/2013 | WO2013037132A1 Preparation of methacrylic acid |