| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 02/29/2012 | CN101362685B Preparation technology for extracting DHA from walnut |
| 02/29/2012 | CN101274889B Preparation for 3-(2-Chloro-alpha,alpha,alpha-trifluoro-p-tolyoxy) benzoic acid |
| 02/29/2012 | CN101238090B Process for preparing L- ( + ) -lactic acid |
| 02/29/2012 | CN101193847B Process for the preparation of adamantane derivatives |
| 02/29/2012 | CN101088980B Two-stage gas flow-fluidized bed drying process and apparatus with nitogen circulated adipic acid and overheated steam |
| 02/23/2012 | WO2012024154A1 Process and system for supplying vapor from drying column to light ends column |
| 02/23/2012 | WO2012024153A1 Improving terephthalic acid purge filtration rate by controlling % water in filter feed slurry |
| 02/23/2012 | WO2012024134A1 Improving terephthalic acid purge filtration rate by controlling % water in filter feed slurry |
| 02/23/2012 | WO2012022801A1 Process for preparing a propiolic acid or a derivative thereof |
| 02/23/2012 | WO2012021956A1 Method for obtaining lactic acid with a high degree of purity from fermentative liquor |
| 02/23/2012 | US20120046495 Process for production of (meth) acrylic acid |
| 02/23/2012 | US20120046493 Terephthalic acid purge filtration rate by controlling % water in filter feed slurry |
| 02/23/2012 | US20120046490 Process for preparing 2,3-di-non-straight-alkyl-2-cyanosuccinic acid diesters |
| 02/23/2012 | CA2808385A1 Process and system for supplying vapor from drying column to light ends column |
| 02/23/2012 | CA2808095A1 Improving terephthalic acid purge filtration rate by controlling % water in filter feed slurry |
| 02/23/2012 | CA2808087A1 Improving terephthalic acid purge filtration rate by controlling % water in filter feed slurry |
| 02/23/2012 | CA2807941A1 Improving terephthalic acid purge filtration rate by controlling % water in filter feed slurry |
| 02/22/2012 | EP2419397A1 A process for producing an unsaturated carboxylic acid from an alkane |
| 02/22/2012 | EP2419396A1 Chemical recycling of pla by alcoholysis |
| 02/22/2012 | EP2419395A1 Chemical recycling of pla by hydrolysis |
| 02/22/2012 | EP2419394A1 Process for the preparation of 2,4,6-octatriene-1-oic acid and 2,4,6-octatriene-1-ol |
| 02/22/2012 | EP1896387B1 Ortho-nitrosophenols as polymerization inhibitors |
| 02/22/2012 | EP1888503B1 Methods for producing alkyl(meth)acrylates |
| 02/22/2012 | EP1296927B1 Preparation of (r)-2-alkyl-3-phenylpropionic acids |
| 02/22/2012 | CN202146637U 转毂式乳酸钙结晶装置 Rotating hub-type calcium lactate crystallization device |
| 02/22/2012 | CN102361848A Solvent-free production of magnesium formate based porous metal-organic frame material |
| 02/22/2012 | CN102361847A Method for producing aliphatic carboxylic acids from aldehydes by microreaction technology |
| 02/22/2012 | CN102361695A Process for the treatment of an ion exchange resin |
| 02/22/2012 | CN102358716A Method of extracting succinic acid from fermentation broth |
| 02/22/2012 | CN102358639A Method for processing waste liquid containing calcium citrate |
| 02/22/2012 | CN101985379B 一种炼油厂高浓度含硫碱渣废水的处理方法 One kind of high concentrations of oil refinery wastewater treatment sulfur Alkali |
| 02/22/2012 | CN101550078B 超临界萃取裂殖壶菌不饱和脂肪酸的方法 Supercritical Fluid Extraction Schizochytrium method of unsaturated fatty acids |
| 02/22/2012 | CN101391952B 对苯二甲酸/间苯二甲酸精制母液回收方法 Terephthalic acid / isophthalic refined liquor recovery process |
| 02/22/2012 | CN101300218B 以稳定地方式操作由丙烷连续制备丙烯醛或丙烯酸或其混合物的方法的方法 Manner to stably operate the continuous preparation of propane to acrolein or acrylic acid or a mixture thereof The method of method |
| 02/22/2012 | CN101243035B 从氧化剂清除物流中除去苯甲酸的工艺 Benzoic acid was removed from the oxidizer purge stream process |
| 02/22/2012 | CN101219944B 润滑油清洁剂的制备方法 Preparation of lubricating oil detergent |
| 02/22/2012 | CN101010132B 优化的液相氧化 Optimized liquid phase oxidation |
| 02/22/2012 | CN101005889B 芳族二羧酸的优化制备 Optimization of the aromatic dicarboxylic acids for preparing |
| 02/21/2012 | US8119824 Processes for producing higher fatty acid esters |
| 02/16/2012 | US20120041230 Process and system for supplying vapor from drying column to light ends column |
| 02/16/2012 | US20120041226 Water vapour assisted ozonolysis of carbon nanotubes |
| 02/16/2012 | US20120041219 Double esters and lubricants thereof |
| 02/16/2012 | US20120040422 Dicarboxylic acid production process |
| 02/15/2012 | EP2417186A1 Method for manufacturing a solution of diacid/diamine salts |
| 02/15/2012 | EP2417089A2 Method for producing 1,6-hexanediol and caprolactone |
| 02/15/2012 | EP2417088A1 Method for producing 1,6-hexanediol |
| 02/15/2012 | EP2417087A2 Method for producing 1,6-hexanediol by hydrogenation of oligo- and polyesters |
| 02/15/2012 | CN102356056A Method for converting aromatic aldehydes to aromatic acyl halides |
| 02/15/2012 | CN102351933A Method for preparing hydroxycobalamin salt |
| 02/15/2012 | CN102351804A Method for recovering valsartan racemate |
| 02/15/2012 | CN102351688A Preparation method of high soluble crystal calcium citrate |
| 02/15/2012 | CN102351687A Preparation method of calcium carbonate slurry and preparation method of citric acid |
| 02/15/2012 | CN102351686A Lactic acid extraction and purification production method by methanol esterification-vacuum distillation hybrid method |
| 02/15/2012 | CN102351685A Process for purifying and refining L-lactic acid fermentation liquor |
| 02/15/2012 | CN102351684A Preparation method of 2-phenylpropionic acid |
| 02/15/2012 | CN102351683A Production process of zinc acrylate |
| 02/15/2012 | CN102351682A Preparation method for sebacic acid |
| 02/15/2012 | CN102351681A Method for continuously synthesizing trifluoroacetyl chloride and sulfuryl fluoride |
| 02/15/2012 | CN102351680A Synthesis technique of chromium propionate |
| 02/15/2012 | CN102351679A Method for producing crystalline sodium acetate with one-step method |
| 02/15/2012 | CN102351678A Process for the preparation of a granular microbial biomass and isolation of valuable compounds therefrom |
| 02/15/2012 | CN102350373A Catalyst for synthetizing acetic acid through methanol carbonylation and preparation method thereof |
| 02/15/2012 | CN102350295A Pretreatment method of air used in production of gluconic acid |
| 02/15/2012 | CN101585764B 合成2—［4—(4—氯丁酰基)苯基］—2—甲基丙酸的方法 Synthesis of 2- [4- (4-chlorobutyryl) phenyl] -2-methyl-propionic acid method |
| 02/15/2012 | CN101155770B α,β-不饱和羧酸的制备方法 α, β- unsaturated carboxylic acids prepared |
| 02/14/2012 | US8115029 Cobalt-catalyzed oxidations in volumetrically expanded liquids by compressed gases |
| 02/14/2012 | US8115021 Method of making hydrogenated metathesis products |
| 02/14/2012 | US8114255 Membrane-augmented distillation with compression to separate solvents from water |
| 02/09/2012 | WO2012018418A2 Method and device for carboxylic acid production |
| 02/09/2012 | WO2012017441A1 Improved process to prepare s-2-hydroxy-3-methoxy-3,3-diphenyl propionic acid |
| 02/09/2012 | WO2012016881A1 Process for preparing difluoroacetic acid, salts thereof or esters thereof |
| 02/09/2012 | US20120035395 Process for producing phthalic acid compound including chlorinated aromatic ring |
| 02/09/2012 | US20120035393 Method for producing aliphatic carboxylic acids from aldehydes by microreaction technology |
| 02/09/2012 | US20120035392 Tubular flow type reactor |
| 02/09/2012 | US20120035373 Processes of producing glutamic acid compounds and production intermediates therefore and novel intermediate for the processes |
| 02/09/2012 | US20120035356 Hydroxycarboxylic Acids and Salts |
| 02/09/2012 | US20120035226 Oxadiazole derivatives |
| 02/09/2012 | CA2805018A1 Process for preparing difluoroacetic acid, salts thereof or esters thereof |
| 02/08/2012 | EP2415749A1 New salvianolic acid compound l, preparation method and use thereof |
| 02/08/2012 | EP2415747A2 Apparatus for preparing acetic acid |
| 02/08/2012 | EP2415716A1 Method for adsorbing fluorocarboxylic acid having ether bond and method for collecting same |
| 02/08/2012 | EP2414315A1 Removing hydrocarbon impurities from acetic acid production intermediate |
| 02/08/2012 | EP2231577B1 Cyclohexanone production process with multiple post-distillation |
| 02/08/2012 | EP1720814B1 Process for recovering organic compounds from aqueous streams containing same |
| 02/08/2012 | CN202139183U 一种pta装置中的压力过滤系统 One kind pta apparatus pressure filtration system |
| 02/08/2012 | CN102348673A Chemical recycling of pla by hydrolysis |
| 02/08/2012 | CN102348672A Chemical recycling of pla by alcoholysis |
| 02/08/2012 | CN102348669A Oxidized organic compound manufacturing method |
| 02/08/2012 | CN102344582A Non-aqueous production method for lead stearate compound stable lubricant |
| 02/08/2012 | CN102344454A Wikstroemia indica (L.) C.A.Mey extract as well as preparation method and application thereof |
| 02/08/2012 | CN102344379A Ionic liquid containing nitrogen-containing cation |
| 02/08/2012 | CN102344362A Preparation method of high-purity isophthaloyl dichloride |
| 02/08/2012 | CN102344361A High selectivity synthesis method of benzoyl formic acid |
| 02/08/2012 | CN102344360A Preparation method of arginine dexibuprofen |
| 02/08/2012 | CN102344359A Method for preparing 3-butenoic acid |
| 02/08/2012 | CN102344358A Method for preparing C2-C11 organic acid by taking tung oil as raw material |
| 02/08/2012 | CN102344357A Preparation method of high purity superfine ferrous oxalate |
| 02/08/2012 | CN102344356A Battery grade nano ferrous oxalate, its preparation method and application |
| 02/08/2012 | CN102344355A Method for preparing chiral (S)-2-propionic acid |
| 02/08/2012 | CN102344354A Calcium stearate fusion production process and calcium stearate reaction kettle thereof |