| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 03/06/2013 | CN102958895A Process for oxidizing alkyl aromatic compounds |
| 03/06/2013 | CN102958894A Method for producing formic acid |
| 03/06/2013 | CN102958893A Process for removing, isolating and purifying dicarboxylic acids |
| 03/06/2013 | CN102958892A Method for preparing chemical compounds of interest by aromatic nucleophilic substitution |
| 03/06/2013 | CN102958891A Process for oxidizing alkyl aromatic compounds |
| 03/06/2013 | CN102958890A Process for producing terephthalic acid |
| 03/06/2013 | CN102958889A Process for producing alpha-ketocarboxylic acid |
| 03/06/2013 | CN102958888A Carboxylation of terminal alkynes |
| 03/06/2013 | CN102958605A Multilayer catalyst for preparing phthalic anhydride and process for preparing phthalic anhydride |
| 03/06/2013 | CN102952831A Manufacturing process of purified lactic acid |
| 03/06/2013 | CN102952157A Intermediates for synthesis of benzindene prostaglandins and preparations thereof |
| 03/06/2013 | CN102952029A Reagent and method for resolving 2-hydroxyl-3-methoxy-3,3-diphenyl propionic acid racemate |
| 03/06/2013 | CN102952011A New synthetic method of carane aldehyde acid lactone, caronic acid, caronic anhydride and key intermediates thereof |
| 03/06/2013 | CN102952010A Bicyclo[2.2.1]heptane-2,3-dicarboxylic acid disodium preparation method |
| 03/06/2013 | CN102952009A Method, technology and production line for producing succinic acid and 1,4-butanediol by use of ethylene glycol |
| 03/06/2013 | CN102952008A Method for extracting succinic acid from anaerobic fermentation broth |
| 03/06/2013 | CN102952007A Production device capable of producing 100,000 tons of formic acid per unit per year |
| 03/06/2013 | CN102949995A Nickel catalyst taking modulated modified diatomite as carrier |
| 03/06/2013 | CN102247840B Catalyst used for sodium formate process and preparation method thereof |
| 03/06/2013 | CN102093196B Method for preparing carboxylic acid by carbonylation of alkanol and/or active derivative thereof |
| 03/06/2013 | CN102039144B Unsaturated aldehyde catalyst produced by an oxidation method and preparation method thereof |
| 03/06/2013 | CN101973874B Preparation method of 3-dehydroshikimic ester compound |
| 03/06/2013 | CN101947470B Polystyrene-based triazole chelating rhodium catalyst and preparation method and application thereof |
| 03/06/2013 | CN101935276B Synthetic method of p-phthaloyl chloride |
| 03/06/2013 | CN101870643B Method for preparing acetic acid from super (near) critical water catalytic oxidizing biomass |
| 03/06/2013 | CN101863753B Method for preparing palmitoyl chloride |
| 03/06/2013 | CN101862013B Method for preparing disodium stannous citrate equivalent composition |
| 03/06/2013 | CN101823955B Method for extracting ferulic acid from maize peels |
| 03/06/2013 | CN101817740B Emulsion for extracting citric acid from fermentation liquor and using method thereof |
| 03/06/2013 | CN101811953B Method for extracting succinic acid from fermentation broth |
| 03/06/2013 | CN101759535B Process for production of acrolein from glycerol |
| 03/06/2013 | CN101704734B Method for recovering diluted acetic acid in production process of trimellitic anhydride |
| 03/06/2013 | CN101658801B Catalysis system for synthesis of acetic acid by using carbonylation and application thereof |
| 03/06/2013 | CN101654410B Processes for preparing bicyclo (3.1.0) hexane derivatives, and intermediates thereto |
| 03/06/2013 | CN101538199B Method for drying terephthalic acid under micro-negative pressure |
| 03/06/2013 | CN101410173B Oxidation system with internal secondary reactor |
| 03/05/2013 | US8389761 Method to produce and recover levulinic acid and/or gamma-valerolactone from aqueous solutions using alkylphenols |
| 03/05/2013 | US8389760 Palladium-containing catalyst, method for producing same, and method for producing α, β-unsaturated carboxylic acid |
| 03/05/2013 | US8389754 Fractionation method of 1,3-disaturated-2-unsaturated triglyceride |
| 02/28/2013 | WO2013028419A1 Integrated process for producing ethanol |
| 02/28/2013 | WO2013028417A1 Integrated process for producing ethanol from methanol |
| 02/28/2013 | WO2013028405A1 Integrated process for producing ethanol from methanol |
| 02/28/2013 | WO2013028356A1 Catalysts for producing acrylic acids and acrylates |
| 02/28/2013 | WO2013027042A1 Novel inhibitor compositions and methods of use |
| 02/28/2013 | WO2013026784A1 Process and apparatus for recovering lactide from polylactide or glycolide from polyglycolide |
| 02/28/2013 | US20130053601 Process for transformation of lignocellulosic biomass or cellulose by tungsten-based solid lewis acids |
| 02/28/2013 | US20130053599 Catalysts for producing acrylic acids and acrylates |
| 02/28/2013 | US20130053595 Catalyst and process for preparing acrolein and/or acrylic acid by dehydration reaction of glycerin |
| 02/28/2013 | US20130053581 Intermediates for the synthesis of benzindene prostaglandins and preparations thereof |
| 02/28/2013 | CA2844149A1 Process and apparatus for recovering lactide from polylactide or glycolide from polygycolide |
| 02/27/2013 | EP2562153A1 Process for the reduction of aldehyde concentration in a target stream |
| 02/27/2013 | EP2562152A1 A method for preparing 2,5-dimethylphenylacetic acid |
| 02/27/2013 | EP2560941A2 Recovery of aromatic carboxylic acids and oxidation catalyst |
| 02/27/2013 | CN102947264A Extraction towers and processes for using same |
| 02/27/2013 | CN102947263A Processes for producing aqueous diamine dicarboxylic acid salt solution and polyamide |
| 02/27/2013 | CN102947259A Processes for the production of tetrahydrofuran, gamma - butyrolactone and/or butanediol from salts of succinic acid |
| 02/27/2013 | CN102942474A Synthetic process of herbicide dicamba |
| 02/27/2013 | CN102942473A Preparation method for gemfibrozil powder |
| 02/27/2013 | CN102942472A Method of extracting succinic acid from microorganism fermentation liquor |
| 02/27/2013 | CN102942471A Preparation method of oxalate |
| 02/27/2013 | CN102942470A Production technology of pharmaceutical grade valeryl chloride |
| 02/27/2013 | CN102942469A Binary acid aqueous solution crystallization technology |
| 02/27/2013 | CN102942468A Technology for removing soluble protein from binary acid fermentation liquor |
| 02/27/2013 | CN102942467A Preparation method of divalproex sodium |
| 02/27/2013 | CN102941121A Aryl alkane oxidation reaction catalytic system and application thereof |
| 02/27/2013 | CN102941033A Solution mixing device for itaconic acid bleaching tank |
| 02/27/2013 | CN102940992A Itaconic acid mother liquor separation device |
| 02/27/2013 | CN102940621A Application of methyl ferulic acid in preparation of medicine for preventing and curing hepatic fibrosis |
| 02/27/2013 | CN102241582B Synthesis technology of sodium valproate |
| 02/27/2013 | CN101979372B Preparation method of methoxyacetic acid |
| 02/27/2013 | CN101868550B Method for the synthesis of omega-unsaturated fatty acids |
| 02/27/2013 | CN101648863B Method for preparing levulinic acids by using straw biomass |
| 02/26/2013 | US8383854 Use of chemical reaction to separate ethylene from ethane in ethane-based processes to produce acetic acid |
| 02/26/2013 | US8383837 Reaction with a gold catalyst |
| 02/26/2013 | US8383752 Method of making triglyceride macromonomers |
| 02/21/2013 | WO2013025107A1 Recovery of carboxylic acid from their magnesium salts by precipitation using hydrochloric acid, useful for fermentation broth work-up |
| 02/21/2013 | WO2013025106A1 Recovery of carboxylic acid from their magnesium salts by precipitation using hydrochloric acid, useful for fermentation broth work-up |
| 02/21/2013 | WO2013025105A1 Recovery of carboxylic acid from their magnesium salts by precipitation using hydrochloric acid, useful for fermentation broth work-up |
| 02/21/2013 | WO2013023999A1 Regioselective carboxylation of nonnatural substrate compounds using decarboxylases |
| 02/21/2013 | WO2013023257A1 Oxidative catalytic process for the synthesis of lactic acid |
| 02/21/2013 | WO2012051412A3 Process for recovering halogen promoters and removing permanganate reducing compounds |
| 02/21/2013 | WO2012051411A3 Process for recovering halogen promoters and removing permanganate reducing compounds |
| 02/21/2013 | US20130046108 Method for preparing 2,5-dimethylphenylacetic acid |
| 02/21/2013 | US20130046102 Glyceryl ether compounds and their use |
| 02/21/2013 | US20130045156 Method for forming graphene and craphene oxide salt, and graphene oxide salt |
| 02/21/2013 | CA2844404A1 Recovery of carboxylic acid from their magnesium salts by precipitation using hydrochloric acid, useful for fermentation broth work-up |
| 02/21/2013 | CA2844204A1 Recovery of carboxylic acid from their magnesium salts by precipitation using hydrochloric acid, useful for fermentation broth work-up |
| 02/21/2013 | CA2843696A1 Recovery of carboxylic acid from their magnesium salts by precipitation using hydrochloric acid, useful for fermentation broth work-up |
| 02/20/2013 | EP2559725A1 Method and device for recovery of lactide from polylactide and glycolide from polyglycolide |
| 02/20/2013 | EP2559680A1 Carbonylation of methanol |
| 02/20/2013 | EP2559679A2 Method for producing 1,6-hexanediol by hydrogenation of oligo- and polyesters |
| 02/20/2013 | EP2558453A1 Process for controlling a gas phase oxidation reactor for preparation of phthalic anhydride |
| 02/20/2013 | EP2558438A2 Interconversion between isomeric p-menthane-3-carboxylic acids |
| 02/20/2013 | CN202744475U Ginkgo acid extraction system |
| 02/20/2013 | CN102939277A Process and system for the separation and drying of carboxylic acid crystals |
| 02/20/2013 | CN102939276A Processes for producing diaminobutane (dab), succinic dinitrile (sdn) and succinamide (dam) |
| 02/20/2013 | CN102939155A Eggshell catalyst consisting of a hollow cylindrical support body and a catalytically active oxide material applied to the outer surface of the support body |
| 02/20/2013 | CN102936195A Preparation method for 2-ethyoxyl naphthoic acid |
| 02/20/2013 | CN102936194A Refining method of high-purity ibuprofen |
| 02/20/2013 | CN102936193A Method for preparing sodium formate by using carbon monoxide under palladium catalysis |