Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
09/2012
09/12/2012CN102659576A Refining method for 2-hydroxyl-6-naphthoic acid
09/12/2012CN102659574A Crystal separation method and equipment in production of Kunlun purified terephthalic acid (KPTA) through advanced oxidization process
09/12/2012CN102659573A Preparation method for 7-carbonyl group-8, 15-isopimaric acid
09/12/2012CN102659572A Preparation method of dehydroabietic acid
09/12/2012CN102659571A Continuous preparation method of herbicide intermediate 2, 4-dichlorphenoxyacetic acid
09/12/2012CN102659570A Difluoro fenofibrate acid and pharmaceutically acceptable salt thereof as well as preparation method and application thereof
09/12/2012CN102659569A Royal jelly acid calcium, and health product for antiatherosclerosis and antiosteoporosis prepared from royal jelly acid calcium and vitamin K2
09/12/2012CN102659568A Method for continuously removing cations out of solution containing citric acid
09/12/2012CN102659567A Method for continuously removing anions from citric acid-containing solution
09/12/2012CN102659566A Production technology of medicinal anhydrous citric acid
09/12/2012CN102659565A Continuous preparation method for phytocide 2,4-D acid
09/12/2012CN102659564A Method for extracting lactic acid from wastewater generated in lactic acid production
09/12/2012CN102659563A Organic extraction phase for extracting lactic acid from heavy phase lactic acid
09/12/2012CN102659561A Method for preparing S-benzylsuccinic acid
09/12/2012CN102659560A Method for purifying erucic acid
09/12/2012CN102659559A Method for preparing lanthanum cerium oxalate from rare earth polishing powder waste residue
09/12/2012CN102659558A Rodlike water containing binary oxalate for negative pole material of lithium ion battery and application thereof
09/12/2012CN102659557A Method for preparing anhydrous oxalic acid from oxalic acid and production device using method
09/12/2012CN102659556A Chemical reaction system for producing oxalic acid diester and oxalic acid as main products by using sodium formate as raw materials
09/12/2012CN102659555A Acetic acid dehydration technology adopting partial condensation process
09/12/2012CN102659554A Preparation method and application of anti-blocking agent
09/12/2012CN102659553A Method for preparing organocopper bactericide from waste copper clad aluminum leads
09/12/2012CN102659541A Method for purifying acrolein and treatment system for preparing acrolein
09/12/2012CN102659495A Method for separating chiral drugs by using oligonucleotides
09/12/2012CN102658202A Metal-porphyrin polymer catalyst and preparation and application thereof
09/12/2012CN102658166A Preparation method and application of ruthenium catalyst for synthesizing 1,4-cyclohexanedicarboxylic acid
09/11/2012US8263804 Conversion of nitrile compounds into corresponding carboxylic acids and esters
09/11/2012US8263794 Process for the partial hydrogenation of fatty acid esters
09/11/2012CA2532646C Reactor for partial oxidation with heat-transfer sheet modules
09/11/2012CA2493250C An adamantyl catalyst system
09/11/2012CA2445159C Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds
09/07/2012WO2012119064A1 Production of carboxylic acid and salt co-products
09/07/2012WO2012118580A1 Bio-based wax compositions and applications
09/07/2012WO2012117976A1 Method for producing alicyclic carboxylic acid and catalyst used in same
09/07/2012WO2012117003A1 Method and device for mixing two fluid flows
09/07/2012WO2012116820A1 Process for obtaining organic carboxylic acids from aqueous mixtures
09/07/2012CA2828893A1 Production of carboxylic acid and salt co-products
09/06/2012US20120226074 Process for producing acrylic acid
09/06/2012US20120226073 Method and apparatus for the intermixing of two fluid streams
09/06/2012DE102011012857A1 Verfahren zur Gewinnung von organischen Carbonsäuren aus wässrigen Gemischen A process for recovering organic carboxylic acids from aqueous mixtures
09/05/2012EP2495233A1 Method for synthesizing unsaturated carboxylic acid and/or derivative of same
09/05/2012CN202410232U Adipic acid decoloration system
09/05/2012CN202410226U Continuous evaporation crystallization device
09/05/2012CN202410195U Nitric acid recovery evaporation system in adipic acid process
09/05/2012CN102653512A Integrated process for recovering acetic acid and methyl acetate in production process of aromatic carboxylic acid
09/05/2012CN102653510A Production method of 2-methyl-2-pentenoic acid
09/05/2012CN102653509A Method for co-production of high-purity chloroacetic acid and acetylchloride by using acetic anhydride chlorination
09/05/2012CN102653508A Method for producing acid by hydrothermally degrading waste liquid crystal display polaroids
09/05/2012CN102225326B Apparatus and method for formic acid production
09/05/2012CN102092902B Treatment and reclamation process of production waste water of tert-amyl peroxypivalate
09/05/2012CN102041153B Preparation method for coating lubricant
09/05/2012CN101920195B Preparation method of terephthalic acid hyrorefining catalyst by using carbon nanofibers as vector
09/05/2012CN101804044B Abietate used for inhibiting helicobacter pylori
09/05/2012CN101717330B Method for utilizing dilute sulphuric acid to catalyze and hydrolyze alpha,alpha'-dicyano-1,1-cyclohexanediacetamide to prepare 1,1-cyclohexanediacetic acid
09/05/2012CN101704738B Production method of ammonium ferric citrate
09/05/2012CN101693656B High-conversion and high-yield process for producing oxalic acid by calcifying method
09/05/2012CN101528657B Manufacture of substantially pure monochloroacetic acid
09/05/2012CN101484409B Recovery of aromatic dicarboxylic acids from waste polyester resin
09/05/2012CN101443100B Mixing apparatus
09/05/2012CN101391949B Process for converting a hydroxy carboxylic acid or salts thereof, to an unsaturated carboxylic acid and/or its esters
09/05/2012CN101277615B Metal soap for addition to food and process for production thereof
09/05/2012CN101172972B (S)- or (R)-epsilon-(2-alkyloxyethyl)-epsilon-caprolactone, preparation method and application thereof
09/05/2012CN101133012B Process for removing methacrylic acid from liquid phase comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component
08/2012
08/30/2012WO2012115356A2 Method for recovering acetic acid from reactor discharge gas in the oxidation process of an aromatic compound
08/30/2012WO2012114434A1 Method for treating purified terephthalic acid mother liquor
08/30/2012WO2012113495A1 Method for recovering fatty alcohols from waste fats or waste oils
08/30/2012WO2012080647A3 Continuous method for the carbonylation of alcohols, in particular of phenyl alcohols
08/30/2012US20120220801 Acetic acid production process
08/30/2012US20120220800 Process and Apparatus for Manufacturing Pure Forms of Aromatic Carboxylic Acids
08/29/2012EP2491073A1 Nanoscale -nucleating agent for polypropylene
08/29/2012EP2490995A2 Methods of preparing fluorinated carboxylic acids and their salts
08/29/2012CN202398359U Reaction tank for preventing scaling
08/29/2012CN102652122A Systems and methods for production of aromatic carboxylic acids
08/29/2012CN102649821A Method for extracting polyose and terpenoide from pinecones
08/29/2012CN102649724A Extracting method for syringic acid
08/29/2012CN102311195B Recycling utilization and processing method for wastewater generated in sebacic acid production process
08/29/2012CN102199165B Preparation method for vinorelbine tartrate
08/29/2012CN101792383B Method for extracting low concentration perfluorooctanoic acid from fatty substances
08/29/2012CN101613267B Dihydroxyoleic acid, preparation method and application thereof
08/29/2012CN101584969B Mixer for preparing acrylic acid through propylene two-step oxygenation method
08/29/2012CN101492368B Method for producing benzoic acid
08/29/2012CN101437782B Method for producing unsaturated aldehyde and unsaturated carboxylic acid
08/29/2012CN101056702B Optimized liquid-phase oxidation in a bubble column reactor
08/28/2012US8252949 Process for producing fatty acid esters
08/28/2012US8252120 Washing apparatus, a method of purifying a wash material and use of the washing apparatus
08/28/2012CA2581666C Process for producing concentrate of unsaturated fatty acid
08/23/2012US20120215027 Process for recovering and recycling an acid catalyst
08/23/2012US20120215026 Recovery of volatile carboxylic acids by extractive evaporation
08/23/2012US20120215025 Oxidation Of Hydrocarbons
08/23/2012US20120215023 Method for Preparative Fragmenting Using an Inductively Heated Heating Medium
08/23/2012US20120215022 Method for the production of 2-hydroxy-4-(methylthio)butyronitrile from 3-(methylthio)propanal and hydrogen cyanide
08/23/2012US20120214920 Bio-based plasticizer
08/23/2012US20120214919 Process
08/23/2012US20120214216 Biomass Pretreatment Process
08/23/2012DE102011012000A1 Producing optically pure diastereomers from racemic mixtures, where the method does not make use of traditional fermentation biotechnology process and thus it is energy-, water- and capital-intensive
08/22/2012EP2488474A2 Methods of refining and producing fuel from natural oil feedstocks
08/22/2012EP2488298A1 Process for preparing catalyst used in production of unsaturated aldehyde and/or unsaturated carboxylic acid by dehydration reaction of glycerin, and catalyst obtained
08/22/2012CN202387721U Reaction kettle of intelligent organic solid waste subcritical hydrolytic treatment energy-saving system
08/22/2012CN202387465U Large adipic acid reactor
08/22/2012CN102643200A Preparation and synthesis method of ammonium salt
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