| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 07/17/2013 | CN103209951A Ketocarboxylic acids, ketocarboxylic esters, methods of manufacture and uses thereof |
| 07/17/2013 | CN103209950A Method for catalytically producing formic acid |
| 07/17/2013 | CN103209764A A process for the production of ethylenically unsaturated carboxylic acids or esters and a catalyst therefor |
| 07/17/2013 | CN103204774A Ibuprofen compound and pharmaceutical composition thereof |
| 07/17/2013 | CN103204773A Method for preparing fumaric acid through cis-trans isomerization of maleic acid |
| 07/17/2013 | CN103204772A Method for producing fumaric acid by maleic anhydride waste water |
| 07/17/2013 | CN103203122A Method for separating and purifying high-purity natural substances from animals and plants by using liquid chromatography column |
| 07/17/2013 | CN102274675B Recovery system of tail gas from water treatment agent HEDP production |
| 07/17/2013 | CN102260162B Method for removing sodium from potassium lactate solution |
| 07/17/2013 | CN102070434B Treatment method for waste liquid produced during production of maleimide compound |
| 07/17/2013 | CN102001933B Method for synthesizing naproxen |
| 07/17/2013 | CN101980781B Catalyst for methacrylic acid production, method for producing the same, and method for producing methacrylic acid |
| 07/17/2013 | CN101939283B Improved method for preparing (meth)acrylic anhydride |
| 07/17/2013 | CN101495439B Aqueous solutions of organic acid chromium(III) salts and process for preparation thereof |
| 07/17/2013 | CN101450907B Processes for the preparation of glutamic acid compounds intermediates and novel intermediates used in the processes |
| 07/17/2013 | CN101098754B Method for manufacturing palladium-containing catalyst |
| 07/16/2013 | US8487138 Oxidation of hydrocarbons |
| 07/11/2013 | WO2013103112A1 Method for purifying methacrylic acid |
| 07/11/2013 | WO2013048692A3 Catalysts for producing acrylic acid and acrylates comprising vanadium, titanium and citric acid |
| 07/11/2013 | WO2013043385A3 Catalyst for producing acrylic acids and acrylates comprising vanadium and titanium |
| 07/11/2013 | WO2012140276A9 Process for the preparation of 3-hydroxy-3-methylbutyric acid or its calcium salts |
| 07/11/2013 | US20130178652 Method of inhibiting polymerization and fouling in acrylic acid and acrylate processes |
| 07/11/2013 | US20130178651 Preparation method of high-optical purity n2-[1-(s)-ethoxycarbonyl-3-phenylpropyl]-n6-trifluoroacetyl-l-lysine |
| 07/11/2013 | US20130178650 Hydrogen treatment of impure tall oil for the production of aromatic monomers |
| 07/11/2013 | US20130178647 Mixed Oxide Catalyst and a Process for the Production of Ethylenically Unsaturated Carboxylic Acids or Esters |
| 07/11/2013 | US20130178632 Transition-Metal-Catalyzed Carbon-Nitrogen and Carbon-Carbon Bond-Forming Reactions |
| 07/11/2013 | US20130175181 Integrated Process for Producing Carboxylic Acids from Carbon Dioxide |
| 07/10/2013 | EP2611767A1 Elimination of organohalo and oxirane species in carboxylic acid ester streams |
| 07/10/2013 | EP2611766A1 Process for producing carbon-comprising composite |
| 07/10/2013 | CN203048831U Device for advanced oxidation production of PTA (Purified Terephthalic Acid) by adopting oxygen-deficient gas |
| 07/10/2013 | CN203044000U Sodium citrate neutralization tank |
| 07/10/2013 | CN203043605U Crystallizing tank for producing citric monohydrate crystals |
| 07/10/2013 | CN203043598U Formic acid recovery cooling system |
| 07/10/2013 | CN103201248A Method for producing sorbic anhydride and also use thereof as a preservative in foods |
| 07/10/2013 | CN103201247A Pump around reactor for production of acetic acid |
| 07/10/2013 | CN103201246A Processes for purification of acid solutions |
| 07/10/2013 | CN103201245A Process for the preparation of difluoroacetic acid |
| 07/10/2013 | CN103201031A Novel glycerol dehydration catalyst and production method therefor |
| 07/10/2013 | CN103193904A Method for preparing fluorine-containing polymer through dispersion method |
| 07/10/2013 | CN103193833A Method for preparing monosaccharide ester and polyphenol product from biomasses by pressurizing, liquefying and directionally extracting and separating |
| 07/10/2013 | CN103193829A 2-(2-carboxyl phenyl) benzimidazole cobalt complex and application thereof for synthesizing phenylacetic acid or derivative thereof |
| 07/10/2013 | CN103193772A Preparation method and application of substituted aryl propionic berberine ion-pair compound |
| 07/10/2013 | CN103193762A Preparation method of alogliptin benzoate |
| 07/10/2013 | CN103193750A Method for preparing shikimic acid and anise flavonoid by joint separation of macroporous resin XAD7HP |
| 07/10/2013 | CN103193694A Method for extracting beta carotene and gamma-linolenic acid from spirulina |
| 07/10/2013 | CN103193671A Method for preparing L-2-aminobutanamide hydrochloride |
| 07/10/2013 | CN103193669A nNOS-Capon uncoupling compound, preparation method and application thereof |
| 07/10/2013 | CN103193634A Method for preparing 3,5-bi(3,4-dicarboxylic phenoxy) benzoic acid compound |
| 07/10/2013 | CN103193633A Preparation and application of 3-bromo-4-ethoxybenzoic acid |
| 07/10/2013 | CN103193632A Synthesis method of salicylic acid imidazole |
| 07/10/2013 | CN103193631A Method for preparing ortho-hydroxybenzoic acid by catalyzing and oxidizing ortho-cresol with metalloporphyrin and metal salt compound as catalyst |
| 07/10/2013 | CN103193630A LNNU-1 serial nanometer MOF (Metal Organic Framework) type porous material and preparation method thereof |
| 07/10/2013 | CN103193629A Chlorinated disproportionated rosin copper salt and preparation method thereof |
| 07/10/2013 | CN103193628A Alpha-ketophenylalanine calcium preparation method |
| 07/10/2013 | CN103193627A Crystal form, preparation method and application of prostaglandin analogue |
| 07/10/2013 | CN103193626A Crystal form, preparation method and application of prostaglandin analogue |
| 07/10/2013 | CN103193625A Process for synthesizing 3-(3,5-dihydroxy-4-isopropylphenyl) acrylic acid |
| 07/10/2013 | CN103193624A Identification and separation method for tartaric acid enantiomer by chiral column material, and application of chiral column material |
| 07/10/2013 | CN103193623A Method for catalytic preparation of acetylpropionic acid in one step by using waste residues obtained by producing xylose |
| 07/10/2013 | CN103193622A Recovery method of glycolic acid in phenoxy carboxylic acid industrial wastewater |
| 07/10/2013 | CN103193621A Acylation reaction method for preparing 2-4-(chlorophenyl)-3-methylbutyryl chloride |
| 07/10/2013 | CN103193620A Method for preparing 2-(4-Chloromethylphenyl) propionic acid as loxoprofen key intermediate |
| 07/10/2013 | CN103193619A Method for synthesis of phenylacetic acid by carbonylation of benzyl chloride |
| 07/10/2013 | CN103193618A Improved process for washing acrylic acid in one-step production of acrylic acid from propane |
| 07/10/2013 | CN103193617A Tail gas circulating process in acrylic acid production by propane one-step method |
| 07/10/2013 | CN103193616A Method for preparing adipic acid by oxidizing cyclohexene with air under catalysis of non-metal carbon |
| 07/10/2013 | CN103193615A Novel synthesizing method of 5-chloro valeryl chloride |
| 07/10/2013 | CN103193614A Preparation method for pharmaceutic adjuvant--magnesium stearate |
| 07/10/2013 | CN103193592A Integrated acid and alcohol production process having flashing to recover acid production catalyst |
| 07/10/2013 | CN103191706A Preparation method of 2,5- dyhydroxyl benzoic acid molecule blotting membrane and application of 2,5- dyhydroxyl benzoic acid molecule blotting membrane |
| 07/10/2013 | CN103191579A Method for extracting gamma-linolenic acid in spirulina through supercritical CO2 |
| 07/10/2013 | CN103191574A Distilling device and multi-component solution separation method |
| 07/10/2013 | CN103191572A Film rising evaporator with swirl plate |
| 07/10/2013 | CN102795985B Method and system for separating calcium formate in preparation process of trimethylolpropane by calcium method |
| 07/10/2013 | CN102795963B Process for preparing trimethylolpropane by adopting centrifugal filtering calcium method |
| 07/10/2013 | CN102381953B Method for extracting and purifying fluorenone from industrial wastes generated in production of benzoic acid |
| 07/10/2013 | CN102249895B Treatment method of solution containing citric acid |
| 07/10/2013 | CN102199087B Treatment method of L-gulonic acid secondary mother liquor |
| 07/10/2013 | CN102105223B Catalyst for methacrylic acid production, process for producing same, and process for producing methacrylic acid |
| 07/10/2013 | CN102010328B Long-chain alkyl salicylic compound as well as preparation method application thereof |
| 07/10/2013 | CN101945847B Method for producing 6-hydroxy hexanoic acid esters |
| 07/10/2013 | CN101892070B Biological oil emulsifying and separating method |
| 07/10/2013 | CN101830794B Submicron cobaltous oxalate rod-shaped powder and preparation method thereof |
| 07/10/2013 | CN101722047B Homogeneous phase iridium complex catalyst of methanol oxo-synthesis acetic acid, preparation method and application thereof |
| 07/10/2013 | CN101687761B Process for the carbonylation of dimethyl ether |
| 07/10/2013 | CN101679185B Improved process for the recovery of terephthalic acid |
| 07/10/2013 | CN101591240B Modeling method of crude terephthalic acid hydrofining reaction industrial device model |
| 07/10/2013 | CN101553454B Process for production of terephthalic acid |
| 07/10/2013 | CN101351437B Production of acid propionates |
| 07/10/2013 | CN101341113B Process for preparing octenoic acid derivatives |
| 07/09/2013 | US8481784 Superabsorbent polymers and methods of making the same |
| 07/09/2013 | US8481783 Process of separation of glyoxylic acid from an aqueous reaction medium containing glyoxylic acid and hydrochloric acid |
| 07/09/2013 | US8481782 Treprostinil production |
| 07/09/2013 | US8481448 Catalyst for oxidation of saturated and unsaturated aldehydes to unsaturated carboxylic acid, method of making and method of using thereof |
| 07/09/2013 | US8480904 Extraction and winterization of lipids from oilseed and microbial sources |
| 07/09/2013 | CA2607099C Production of sodium diformate |
| 07/04/2013 | WO2013101335A1 Process for oxidizing alkyl-aromatic compounds |
| 07/04/2013 | WO2013101334A1 Process for producing terephthalic acid |
| 07/04/2013 | WO2013101332A1 Process for producing terephthalic acid |
| 07/04/2013 | WO2013101331A1 Process for producing terephthalic acid |