Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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08/08/2012 | CN102627554A Preparation method of methylene disalicylic acid |
08/08/2012 | CN102627553A Preparation method of 2,3,4,5-tetrafluorobenzoyl chloride |
08/08/2012 | CN102627551A Method for isomerizing rosin resin acid promoted by solid super acid |
08/08/2012 | CN102627550A Preparation methods of butanetetracarboxylic acid and butanetetracarboxyl dianhydride |
08/08/2012 | CN102627549A Preparation method of cobalt decanoate |
08/08/2012 | CN102627548A Method for recovering acetone and acetic acid from waste solvent produced in isopropylidene ester production. |
08/08/2012 | CN102627537A Method for producing unsaturated aldehyde and/or unsaturated carboxylic acid |
08/08/2012 | CN102626646A Device and method for recycling cobalt-manganese catalyst in oxidation section |
08/08/2012 | CN102626621A Hydrogenation catalyst using cellular titanium dioxide as carrier and preparation method thereof |
08/08/2012 | CN102626620A Preparation method of palladium carbon catalyst with controllable load depth |
08/08/2012 | CN102626619A Preparation method of palladium carbon catalyst |
08/08/2012 | CN101961624B Method for the production of at least one organic target compound by means of heterogeneously catalyzed partial gas phase oxidation |
08/08/2012 | CN101816935B Carbon-carried palladium catalyst and preparation method thereof |
08/08/2012 | CN101508640B Method for recycling dilute acetic acid with azeotropic abstraction distillation |
08/08/2012 | CN101489970B Method for producing succinic acid |
08/08/2012 | CN101300219B Novel process for the preparation of acid chlorides |
08/08/2012 | CN101056838B Optimized liquid-phase oxidation |
08/07/2012 | US8236982 Process for production of terephthalic acid |
08/07/2012 | US8236534 Process for producing ethanol |
08/07/2012 | CA2516598C Process for obtaining fatty acid alkyl esters, rosin acids and sterols from crude tall oil |
08/02/2012 | WO2012103325A2 A method of purifying a dicarboxylic acid compound |
08/02/2012 | WO2012101526A1 Improved process for manufacturing acrolein/acrylic acid |
08/02/2012 | WO2012101471A1 Improved process for manufacturing acrolein/acrylic acid |
08/02/2012 | WO2012101403A1 Process for the production of methyl acetate/acetic acid |
08/02/2012 | US20120197043 Method of purifying a dicarboxylic acid |
08/02/2012 | US20120197042 Process for preparing highly branched polyhydroxybenzoic acid alkoxylates |
08/02/2012 | US20120196233 Recovery of dissolved organics from lignocellulosic solutions |
08/02/2012 | CA2841761A1 Safety system for an ozone absorber column |
08/02/2012 | CA2841740A1 Process for reconditioning a gas from the ozonizing of an unsaturated fatty acid |
08/02/2012 | CA2841602A1 Cleaning compositions and method of using the same |
08/02/2012 | CA2841599A1 An improved method of purifying a dicarboxylic acid |
08/02/2012 | CA2841595A1 A method of purifying a dicarboxylic acid compound |
08/02/2012 | CA2825120A1 Process for the production of methyl acetate/acetic acid |
08/01/2012 | EP2016039B1 Terphenyl derivatives for treatment of alzheimer' s disease |
08/01/2012 | EP1890990B1 Method for making carboxylic acids |
08/01/2012 | EP1735093B1 Catalyst having a silver-vanadium oxide phase and a promoter phase |
08/01/2012 | EP1272451B1 Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts |
08/01/2012 | CN1534010B Water soluble extract of red sage root and its preparation method and use |
08/01/2012 | CN102625794A Liquid lactic acid composition and method for preparation thereof |
08/01/2012 | CN102625793A Catalyst and method for partially oxidizing hydrocarbons |
08/01/2012 | CN102625731A Palladium catalyst system comprising zwitterion and/or acid-functionalized ionic liquid |
08/01/2012 | CN102618393A Method for preparing hydrogenated dimer acid |
08/01/2012 | CN102618388A Method for separating oleic acid by continuous rectification of nigre acidification oil black fatty acid |
08/01/2012 | CN102617594A Prasugrel eutectic and preparation method, medicinal composition and application thereof |
08/01/2012 | CN102617427A Method for recovering N-acetyl-DL-methionine and by-products of sodium acetate trihydrate from N-acetyl-DL-methionine racemization waste liquid |
08/01/2012 | CN102617392A Preparation method of Aliskiren hemifumarate having crystal form I |
08/01/2012 | CN102617340A Preparation method of 3-cyclopropylmethoxy-4-difluoromethoxybenzoic acid |
08/01/2012 | CN102617338A Preparation method of p-trifluoromethyl salicylic acid |
08/01/2012 | CN102617337A Method for recycling waste polyester (PET) |
08/01/2012 | CN102617336A Method for recovering suspended solid in terephthalic acid refining mother liquid |
08/01/2012 | CN102617335A Process for synthesizing p-tert-butylbenzoic acid |
08/01/2012 | CN102617334A Refine method of sodium citrate mother solution |
08/01/2012 | CN102617333A Extraction method of citric acid |
08/01/2012 | CN102617332A Alpha-ketovaline calcium dihydrate crystal and preparation method thereof |
08/01/2012 | CN102617331A Alpha-ketoleucine calcium dihydrate crystal and preparation method thereof |
08/01/2012 | CN102617330A Method for preparing ibuprofen arginine salt |
08/01/2012 | CN102617329A Preparation method of ibuprofen arginine salt |
08/01/2012 | CN102617328A Preparation method of hydrocinnamic acid |
08/01/2012 | CN102617327A Dexibuprofen compound and preparation method thereof |
08/01/2012 | CN102617326A Preparation method for 2-methylsuccnic acid through Ni catalysis |
08/01/2012 | CN102617325A Method for decoloration of succinic acid fermentation broth by ion exchange resin |
08/01/2012 | CN102617324A Crystal size controllable continuous crystallization process of sodium acetate trihydrate |
08/01/2012 | CN102617323A Method for recovering pentaerythritol and sodium formate |
08/01/2012 | CN102617322A Method for producing methanoic acid by adopting reactive rectification technology |
08/01/2012 | CN102617321A Method for producing methanoic acid by hydrolyzing methyl formate |
08/01/2012 | CN102617320A Method for treating reaction solution containing long chain dicarboxylate |
08/01/2012 | CN102617312A Method for preparing 2-chloro-6-fluorobenzaldehyde |
08/01/2012 | CN102617285A Method for generating trimethylolpropane by condensation of formaldehyde and n-butyl alcohol |
08/01/2012 | CN102617260A Method for removing boric acid group by using aryl boric acid compound |
08/01/2012 | CN102617256A Method for preparing biaryl compound in pure water |
08/01/2012 | CN102616969A Pure terephthalic acid (PTA) mother liquor recycling system and recycling method thereof |
08/01/2012 | CN102614920A Silicon dioxide or polystyrene resin immobilized decatungstate catalyst and method for synchronizing adipic acid by catalytic oxidation of cyclohexene by using catalyst |
08/01/2012 | CN102614769A Method for converting carbon dioxide in smoke into formic acid under normal pressure |
08/01/2012 | CN102127028B Chiral oxazoline and synthesis method thereof |
07/31/2012 | US8232425 leave the cycloalkane impurity in the crude propylene, and removing the propionic acid formed therefrom in the partial oxidation from the acrylic acid target product by virtue of thermal separation process in the second separation zone |
07/31/2012 | US8232424 Radiopharmaceuticals, for use in Positron Emission Tomography (PET) |
07/31/2012 | US8232416 Method of manufacturing perfluorinated polyfunctional vinyl ether compound |
07/31/2012 | US8232415 Flow reactors for chemical conversions with heterogeneous catalysts |
07/26/2012 | WO2012099665A1 Apparatuses including support member modifications and processes related thereto |
07/26/2012 | WO2012099139A1 FERRIC CITRATE CONTAINING SUBSTANTIALLY NO β-OXIDIZED IRON HYDROXIDE |
07/26/2012 | US20120190892 Process for the preparation of a halogenoacetyl fluoride and its derivatives |
07/26/2012 | US20120190890 Method for producing bioresourced acrylic acid from glycerol |
07/26/2012 | US20120190889 Process for preparation of a carboxylic acid salt by dehydrogenation of a primary alcohol |
07/26/2012 | US20120190888 Treprostinil production |
07/26/2012 | US20120190648 Fluorinated cyclopropane analogs of glutamic acid |
07/26/2012 | US20120190091 Liquid-phase and vapor-phase dehydration of organic / water solutions |
07/26/2012 | CA2824646A1 FERRIC CITRATE CONTAINING SUBSTANTIALLY NO ß-OXIDIZED IRON HYDROXIDE |
07/25/2012 | EP2479164A1 Catalytic method for producing aliphatic straight chain and beta-alkyl branched carboxylic acids |
07/25/2012 | EP2477958A2 High shear system and method for the production of acids |
07/25/2012 | CN202343177U Acrylic acid reactor cooling system |
07/25/2012 | CN202343074U Acrylic acid quench tower |
07/25/2012 | CN102612563A Process for the preparation of a monovalent succinate salt |
07/25/2012 | CN102612507A Process for the production of artemisinin intermediates |
07/25/2012 | CN102612506A Preparation of acetic acid |
07/25/2012 | CN102612406A Multilayer catalyst for producing carboxylic acids and/or carboxylic acid anhydrides with vanadium antimonate in at least one catalyst layer, and method for producing phthalic acid anhydride with a low hot-spot temperature |
07/25/2012 | CN102603593A Purification of carboxylic acids by complexation with selective solvents |
07/25/2012 | CN102603575A Rhein-arginine eutectic compound, and preparation method, purification method and application thereof in preparation of medicines for treating diabetic complications |
07/25/2012 | CN102603522A Phenol derivatives and application thereof to preparation of anti-HBV (hepatitis B virus) medicines |
07/25/2012 | CN102603521A Preparation method of 2,3,4,5-tetrafluorobenzoyl chloride |
07/25/2012 | CN102603520A Method for preparing 1H-indene-1-ketone-3-methanoic acid compound |