| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 01/25/2012 | CN102329217A Method for preparing formic acid coproduced with calcium nitrate and hydrochloric acid from chloroform leftovers |
| 01/25/2012 | CN102329216A Method for preparing formic acid coproduced with calcium chloride and sodium chloride from chloroform leftovers |
| 01/25/2012 | CN102329215A Method for preparing formic acid coproduced with calcium sulfide and hydrochloric acid from chloroform leftovers |
| 01/25/2012 | CN102329214A Method for producing formic acid and coproducing calcium phosphate and hydrochloric acid by using chloroform leftovers |
| 01/25/2012 | CN102329213A Method for preparing formic acid coproduced with calcium sulfide and hydrochloric acid from chloroform leftovers |
| 01/25/2012 | CN102329212A Refining method for long-chain binary acid |
| 01/25/2012 | CN102329211A C12-C13 long-chain binary acid refining method |
| 01/25/2012 | CN102329210A 2, 6-di(aryl)-anthraquinone and preparation method thereof |
| 01/25/2012 | CN102329196A Method for separating out mono-pentaerythritol and dipentaerythritol |
| 01/25/2012 | CN101811955B Method for producing acrylic acid |
| 01/25/2012 | CN101638476B Maleopimaric acidyl bivalent tin catalyst for synthesizing polytrimethylene terephthalate and preparation method thereof |
| 01/25/2012 | CN101602010B Molecular sieve based catalysts, preparation method and application thereof in crylic acid preparation by lactic acid dehydration |
| 01/25/2012 | CN101495231B Method for producing palladium-containing catalyst |
| 01/25/2012 | CN101417941B Method for preparing ferrous oxalate hydrous salt crystal |
| 01/25/2012 | CN101209964B Method for preparing high pure terephthalic acid |
| 01/25/2012 | CN101163658B Process for the production of acetic acid |
| 01/24/2012 | US8101798 Manufacture of substantially pure monochloroacetic acid |
| 01/24/2012 | US8101796 Process for the production of acetic acid |
| 01/24/2012 | CA2645119C Method for producing 4-oxoquinoline compound |
| 01/24/2012 | CA2521644C Catalyst composition and process for the selective oxidation of ethane and/or ethylene to acetic acid |
| 01/22/2012 | CA2710726A1 Synthesis of treprostinil and intermediates useful therein |
| 01/19/2012 | WO2011141923A3 Improved synthesis of optically pure (s) - 3-cyano-5-methyl-hexanoic acid alkyl ester, an intermediate of (s)- pregabalin |
| 01/19/2012 | WO2011119395A3 Recovery of aromatic carboxylic acids and oxidation catalyst |
| 01/19/2012 | US20120016159 Catalyst for Oxidation of Saturated and Unsaturated Aldehydes to Unsaturated Carboxylic Acid, Method of Making and Method of Using Thereof |
| 01/19/2012 | US20120012522 Making and using composite material containing nanospheres and devices for water filtration and devices containg such composites |
| 01/18/2012 | EP2407445A1 Oxidized organic compound manufacturing method |
| 01/18/2012 | EP2407444A2 Process for the preparation of dodecanedioic acid |
| 01/18/2012 | EP2406209A1 Production of formic acid |
| 01/18/2012 | EP1457482B1 Stable isotope-labeled amino acid, method of integrating the same into target protein, method of NMR structural analysis of protein |
| 01/18/2012 | CN202116467U Stannous octoate production device |
| 01/18/2012 | CN1988954B Catalysts based on metal complexes for the synthesis of optically active chrysanthemic acid |
| 01/18/2012 | CN102325822A Bio-based terephthalate polyesters |
| 01/18/2012 | CN102325800A Polymerization inhibitor composition and method of inhibiting polymerization of distillable monomers |
| 01/18/2012 | CN102325746A Reactive extraction of free organic acids from ammonium salts thereof |
| 01/18/2012 | CN102325593A Catalyst molded bodies and method for producing maleic acid anhydride |
| 01/18/2012 | CN102325592A Catalyst and method for producing maleic anhydride |
| 01/18/2012 | CN102321683A Process for preparing fumaric acid fermentation liquid by fermentation method and for separating and extracting pure fumaric acid from fumaric acid fermentation liquid |
| 01/18/2012 | CN102321680A Dihydric alcohol and organic acid co-production and separation method |
| 01/18/2012 | CN102320960A Preparation method of 6-fluoro salicylic acid |
| 01/18/2012 | CN102320959A Preparation method of adenostemmoic acid B |
| 01/18/2012 | CN102320958A Method and device for extracting hexahydrobenzoic acid from rearrangement reaction liquid |
| 01/18/2012 | CN102320957A Method for preparing 4-(2,4,5-trifluorophenyl)-3-oxo-butanoic acid |
| 01/18/2012 | CN102320955A Method for removing silicon in citric acid |
| 01/18/2012 | CN102320954A Method for preparing ibuprofen with large crystal form |
| 01/18/2012 | CN102320953A Method for preparing natural alpha-linolenic acid from crude oil of idesia polycarpa var.vestita diels |
| 01/18/2012 | CN102320952A Preparation method of barium oxalate hydrate microcrystal with firewood morphology |
| 01/18/2012 | CN102320951A Method for preparing palladium acetate tripolymer |
| 01/18/2012 | CN102320950A Method for synthesizing acetic acid through carbonylation |
| 01/18/2012 | CN102320949A Multistage acidification reaction device for formic acid continuous production |
| 01/18/2012 | CN102320948A Purifying method of chloracetyl chloride |
| 01/18/2012 | CN102319587A Catalyst used in carbonylation synthesis of acetic anhydride coproduced with acetic acid and preparation and application methods thereof |
| 01/18/2012 | CN102020593B Process for preparing L-arginine-alpha-ketoglutarate (AAKG) from fermentation liquor through direct crystallization |
| 01/18/2012 | CN101402559B Purification method for D, L-naproxen |
| 01/18/2012 | CN101384538B Method for the heterogeneously catalysed partial gas phase oxidation of propylene to form acrylic acid |
| 01/18/2012 | CN101111312B Process for preparing aromatic carboxylic acids |
| 01/18/2012 | CN101104861B Method for preparing S-ibuprofen and S-ibuprofen ester by biological catalysis |
| 01/17/2012 | US8097757 Method for preparing (meth)acrylic anhydride |
| 01/17/2012 | US8097756 Process for producing carboxylic acid anhydrides |
| 01/17/2012 | US8097740 Isolation and subsequent utilization of saturated fatty acids and α-olefins in the production of ester-based biolubricants |
| 01/17/2012 | CA2659497C Polyfluoroalkane carboxylic acid fluoride, process for producing the same and process for producing polyfluoroalkane carboxylic acid using the same |
| 01/17/2012 | CA2440577C Low molecular weight branched alkenyl succinic acid derivatives prepared from low molecular weight polyisobutene and unsaturated acidic reagents |
| 01/12/2012 | WO2012005903A2 Process for oxidizing alkyl aromatic compounds |
| 01/12/2012 | WO2012005902A2 Process for purifying terephthalic acid |
| 01/12/2012 | WO2012005348A1 Novel glycerol dehydration catalyst and production method therefor |
| 01/12/2012 | WO2012003545A1 Acetylenation of fatty acids |
| 01/12/2012 | US20120010371 Method of accelerating methanol carbonylation |
| 01/12/2012 | US20120006673 Dividing wall distillation column for producing high purity acrylic acid and fractional distillation method using the same |
| 01/11/2012 | EP2403821A2 Method for the preparation of alkyl levulinates |
| 01/11/2012 | EP1786555B1 Optimized liquid-phase oxidation in a bubble column reactor |
| 01/11/2012 | EP1084128B1 Powdery, solid rare earth carboxylates with improved solubility |
| 01/11/2012 | CN202107647U Device for reducing concentration of fluorion contained in trifluoroacetic acid during production |
| 01/11/2012 | CN102317249A Method for cleaving michael adducts that are contained in a fluid f and that were formed in the production of acrylic acid or esters thereof |
| 01/11/2012 | CN102317248A Process for producing optically active carboxylic acid |
| 01/11/2012 | CN102317247A Method for producing oxygen-containing compound |
| 01/11/2012 | CN102316978A Method for continuously manufacturing geometric catalyst molded bodies k |
| 01/11/2012 | CN102311775A Method for recovering naphthenic acid from hydrocarbon oil and device thereof |
| 01/11/2012 | CN102311337A Method for processing butyl benzaldehyde |
| 01/11/2012 | CN102311336A Method for preparing anhydrous monosodium citrate |
| 01/11/2012 | CN102311335A Preparation process of brufen with high bulk density |
| 01/11/2012 | CN102311334A Reaction method and reactor for preparing acrylic acid through selective oxidation of propane |
| 01/11/2012 | CN102311333A Method for producing hydroxyphenyl acrylate monomers and polymers |
| 01/11/2012 | CN102311332A Method for producing succinic acid |
| 01/11/2012 | CN102311331A Process for crystallizing chloroacetic acid |
| 01/11/2012 | CN102311195A Recycling utilization and processing method for wastewater generated in sebacic acid production process |
| 01/11/2012 | CN101933916B Application of gallic acid in preparing anti-HPV medicine |
| 01/11/2012 | CN101657257B Improvements in oxidative demetalling |
| 01/11/2012 | CN101503346B Method and apparatus for synthesizing acetic acid by methanol low-voltage carbonylation |
| 01/11/2012 | CN101391945B Novel purification method for formic acid |
| 01/11/2012 | CN101294169B Novel technique for extracting lactic acid with sodium salt fermentation electrodialysis |
| 01/10/2012 | US8093422 Method for deuteration of an aromatic ring |
| 01/10/2012 | US8093416 Method for producing fatty acid alkyl esters and/or glycerin using fat or oil |
| 01/10/2012 | US8093415 Polyunsaturated fatty acid monovalent and divalent metal salt synthesis |
| 01/10/2012 | CA2524218C Phosphorus/vanadium catalyst preparation |
| 01/05/2012 | WO2012001620A1 Multilayer catalyst for preparing phthalic anhydride and process for preparing phthalic anhydride |
| 01/05/2012 | WO2012001395A1 A nitrided mixed oxide catalyst system and a process for the production of ethylenically unsaturated carboxylic acids or esters |
| 01/05/2012 | WO2012001394A1 A mixed oxide catalyst and a process for the production of ethylenically unsaturated carboxylic acids or esters |
| 01/05/2012 | WO2012001390A1 Process and system for the separation of solid carboxylic acid fines |
| 01/05/2012 | WO2012001389A1 Process and system for the separation of carboxylic acids (such as terephthalic acid) from a slurry |
| 01/05/2012 | WO2012000964A1 Method for producing formic acid |
| 01/05/2012 | WO2012000823A1 Process for preparing formic acid by reaction of carbon dioxide with hydrogen |