| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 05/23/2012 | CN102471208A 制备二氟乙酸的方法 The method of preparation of difluoro acid |
| 05/23/2012 | CN102471207A 制备卤代乙酰氟及其衍生物的方法 Haloacetyl derivatives and process for preparing the fluorine |
| 05/23/2012 | CN102464581A 一种制备高纯度丹参素钠的方法 A high-purity sodium prepared Danshensu |
| 05/23/2012 | CN102464580A 卤乙氧基乙酸及其酯的制备 Preparation of acid halides and esters of ethoxylated |
| 05/23/2012 | CN102464579A 自环己烷氧化副产物制备己二酸的方法 Adipic acid from cyclohexane oxidation byproducts method of preparation |
| 05/23/2012 | CN102050471B Method for recycling sodium formate and sodium sulfite from waste sodium hydrosulfite liquid with sodium formate method |
| 05/23/2012 | CN101972623B Continuous oxidation reaction kettle for trimethyl benzene |
| 05/23/2012 | CN101961633B Unsym-trimethyl benzene continuous oxidation reaction equipment |
| 05/23/2012 | CN101961632B Trimethyl benzene continuous oxidation reactor |
| 05/23/2012 | CN101954295B Catalyst system for methanol low-pressure carbonyl synthesis of acetic acid and application thereof |
| 05/23/2012 | CN101890369B Liquid-solid phase loaded catalyst used in production of acetic acid and preparation method thereof |
| 05/23/2012 | CN101792458B Cyano-bridged mixed-valence copper polynuclear complex, and preparation method and application thereof |
| 05/23/2012 | CN101768075B 15-carbonyl steviol derivative and salt as well as preparation method and application |
| 05/23/2012 | CN101703898B PDMS/PVDF pervaporation composite membrane, preparation method and application thereof |
| 05/23/2012 | CN101585759B Method of extracting DHA unsaturated fatty acid from dino flagellate fermentation liquor |
| 05/23/2012 | CN101555202B Gemfibrozil polymorphism and preparation method thereof |
| 05/23/2012 | CN101531586B Method for preparing methacrylic acid |
| 05/23/2012 | CN101440032B Gemfibrozil polycrystalline type and preparation thereof |
| 05/23/2012 | CN101423478B Method for producing hexane diacid and hexanediamine by using nylon-66 disaggregation |
| 05/23/2012 | CN101423469B Oxidation process for aromatic compound |
| 05/23/2012 | CN101417946B Method for preparing pentachlorobenzoyl chloride |
| 05/23/2012 | CN101417945B Method for preparing 4-bromo-2,3,5,6-3-fluorophenylacetic acid |
| 05/23/2012 | CN101372451B Chemical synthesis method of 2,3,4,5-phenyl tetrafluoride formyl chloride |
| 05/23/2012 | CN101333161B Method for preparing alpha-chloro-fatty acid |
| 05/23/2012 | CN101265148B Method for preparing formic acid, methanol and methane by using metal hydro-thermal to reduce CO2 |
| 05/23/2012 | CN101258121B Neutralization method |
| 05/23/2012 | CN101044108B Cage-shaped cyclobutanoic dianhydrides and process for production thereof |
| 05/22/2012 | US8183411 Process for preparing 6-hydroxycaproic esters |
| 05/22/2012 | US8183409 High yield and rapid synthesis methods for producing metallo-organic salts |
| 05/22/2012 | US8183406 Process for recovering valued compounds from a stream derived from purification of methyl methacrylate |
| 05/22/2012 | US8182556 Liquid fractionation method for producing biofuels |
| 05/22/2012 | CA2513138C Oxidation catalyst and its preparation |
| 05/22/2012 | CA2479005C Amorphous atorvastatin calcium or pravastatin sodium hmg-coa reductase inhibitors of desired particle size |
| 05/18/2012 | WO2012065115A2 Ketocarboxylic acids, ketocarboxylic esters, methods of manufacture and uses thereof |
| 05/18/2012 | WO2012064832A1 Process for refining crude acetyls mixture |
| 05/18/2012 | WO2012064830A1 Coproduction of acetic acid and acetic anhydride |
| 05/18/2012 | WO2012064689A1 Processing gaseous streams resulting from carbonylation process |
| 05/18/2012 | WO2012063771A1 Catalyst for producing methacrolein and methacrylic acid, and process for production thereof |
| 05/18/2012 | WO2012063044A1 A process for the production of ethylenically unsaturated carboxylic acids or esters and a catalyst therefor |
| 05/18/2012 | WO2012062602A1 Process for the preparation of difluoroacetic acid |
| 05/18/2012 | WO2012062041A1 Para- or meso-functionalized aromatic ketone compounds, preparation methods thereof, and photopolymerization initiators comprising the same |
| 05/18/2012 | CA2814592A1 A process for the production of ethylenically unsaturated carboxylic acids or esters and a catalyst therefor |
| 05/17/2012 | US20120123160 Processes for purification of acid solutions |
| 05/17/2012 | US20120123159 Method for preparing difluoroacetic acid |
| 05/17/2012 | US20120123157 Formic acid manufacturing system and method of manufacturing formic acid |
| 05/17/2012 | US20120123156 Coproduction of acetic acid and acetic anhydride |
| 05/17/2012 | US20120123147 Ketocarboxylic acids, methods of manufacture and uses thereof |
| 05/17/2012 | US20120123085 Processes for preparing diacids, dialdehydes and polymers |
| 05/17/2012 | US20120122940 Polyunsaturated fatty acids for the treatment of diseases related to cardiovascular, metabolic and inflammatory disease areas |
| 05/17/2012 | US20120122662 Catalyst for conversion of hydrocarbons, process of making and process of using thereof - bimetallic deposition |
| 05/16/2012 | EP2452931A2 Method for preparing tricyclic derivatives |
| 05/16/2012 | EP2451766A2 Acetic acid production by way of carbonylation with enhanced reaction and flashing |
| 05/16/2012 | EP1928831B1 Chemical synthesis |
| 05/16/2012 | DE112008002315B4 Herstellung von Fettsäure-Metallsalzen in fester Form Production of fatty acid metal salts in solid form |
| 05/16/2012 | CN1854128B Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds |
| 05/16/2012 | CN102459141A （甲基）丙烯酸单体的再稳定方法 Further stabilization method (meth) acrylic monomers |
| 05/16/2012 | CN102453435A Hydrogenated rosin synthesis technology |
| 05/16/2012 | CN102452932A Preparation method for L-(+)-tartaric acid |
| 05/16/2012 | CN102452931A Method for extracting malic acid |
| 05/16/2012 | CN102452930A Recovery process of phenylacetic acid |
| 05/16/2012 | CN102452929A Production process for preparing high-purity alpha-linolenic acid by taking perilla seeds as raw materials |
| 05/16/2012 | CN102452928A Preparation method of carbonyl fluoride |
| 05/16/2012 | CN102452927A Method for separating acetic acid from water |
| 05/16/2012 | CN102452926A Method for separating acetic acid and water |
| 05/16/2012 | CN102452925A Method for separating acetic acid from water |
| 05/16/2012 | CN102452924A Method for separating acetic acid from water by acetic acid dehydration tower |
| 05/16/2012 | CN102452923A Method for catalytically oxidizing lactone |
| 05/16/2012 | CN102452922A Production method of dicarboxylic acid |
| 05/16/2012 | CN102452921A Method for preparing dicarboxylic acid |
| 05/16/2012 | CN102452920A Method for preparing corresponding hydroxy acid by catalytically oxidizing cyclic ketone |
| 05/16/2012 | CN102452919A Method for preparing corresponding hydroxy acid by catalytically oxidizing lactone |
| 05/16/2012 | CN102452918A Method for preparing corresponding dicarboxylic acid by catalytic oxidation of hydroxy acid |
| 05/16/2012 | CN102452917A Method for catalytically oxidizing hydroxy acid |
| 05/16/2012 | CN102452895A Method for catalyzing cycloalkane by utilizing Sn-containing Ti-Si molecular sieve |
| 05/16/2012 | CN102452894A Method for catalytic oxidation of cyclic ketone by nanometer Beta molecule sieve |
| 05/16/2012 | CN102452893A Method for oxidizing cyclic ketone by utilizing zinc-supported Beta molecular sieve |
| 05/16/2012 | CN102452872A Reaction method for catalyzing cyclic ketone by total silicone molecular sieve |
| 05/16/2012 | CN102452871A Method for catalytic oxidation of cyclic ketone |
| 05/16/2012 | CN102452870A Method for catalytically oxidizing cyclic olefin |
| 05/16/2012 | CN102452869A Method for catalytically oxidizing cyclic ketone |
| 05/16/2012 | CN102452867A Method for preparing aryl acetonitrile compound |
| 05/16/2012 | CN102452696A Treatment method for high salt content and high COD alkaline residue neutralization water |
| 05/16/2012 | CN102451733A Method of catalytic oxidization of cyclic ketone by using tin supported molecular sieve |
| 05/16/2012 | CN102451710A Acrylaldehyde catalyst prepared by propylene oxidation method and its preparation method |
| 05/16/2012 | CN102451702A Acrylic acid catalyst prepared by acrolein oxidation and preparation method thereof |
| 05/16/2012 | CN102451574A Acetic acid dehydrating method |
| 05/16/2012 | CN102451573A Acetic acid dehydrating tower rectifying method |
| 05/16/2012 | CN102451572A Method for separating acetic acid from water by rectification of acetic acid dehydrating tower |
| 05/16/2012 | CN101735268B Process for post-treatment of acephate and method for recovering waste water resources |
| 05/16/2012 | CN101410360B Method for producing methacrolein and/or methacrylic acid |
| 05/16/2012 | CN101180255B Process to produce an enrichment feed |
| 05/15/2012 | US8178720 Method for producing unsaturated aldehyde and unsaturated carboxylic acid |
| 05/15/2012 | US8178719 dehydration reaction and the gas phase oxidation of glycerol in a tandem-type reactor; renewable source of this chemical |
| 05/15/2012 | US8178718 Catalyst for oxidation of saturated and unsaturated aldehydes to unsaturated carboxylic acid, method of making and method of using thereof |
| 05/15/2012 | US8178717 Process for production of (meth)acrylic acid with high boiling fraction work-up by means of crystallization |
| 05/15/2012 | US8178716 Method of crystallization |
| 05/15/2012 | US8178707 Co-precipitated salts of fatty acids |
| 05/15/2012 | US8178706 Production of fatty acid and fatty acid ester |
| 05/15/2012 | US8178705 Process for production of fatty acids and wax alternatives from triglycerides |
| 05/15/2012 | CA2471847C Processes of producing glutamic acid compounds and production intermediates therefor and novel intermediate for the processes |