Patents
Patents for C07C 55 - Saturated compounds having more than one carboxyl group bound to acyclic carbon atoms (3,355)
09/2012
09/20/2012WO2012125894A2 Oxidation inhibitors for amine degradation
09/20/2012US20120238722 Process for the crystallization of succinic acid
09/20/2012US20120238536 Method for Treating Retinal Conditions Using an Intraocular Tamponade
09/19/2012CN102675184A Salt form of tyrosine kinase inhibitor
09/19/2012CN102675084A A method for producing adipic acid by using waste polyurethane soles
09/19/2012CN102675083A Preparation method of ferrous oxalate
09/19/2012CN102674643A Method for recovering ferric oxide from red mud by leaching-photocatalysis by oxalic acid
09/18/2012US8269040 O-desmethylvenlafaxine succinate; tablet, capsule; sustained release; hydroxypropylmethyl cellulose rate controlling polymer; microcrystalline cellulose binder; depression, bipolar and manic disorders, attention deficit disorder, attention deficit disorder with hyperactivity, Parkinson's disease
09/12/2012EP2496545A2 Sulfomethylsuccinates, process for making same and compositions containing same
09/12/2012CN202427210U Pipe sedimentation device for removing large solid particles from coarse dimer acid suspension
09/12/2012CN102659584A Chemical reaction system for producing oxalic acid diester as main products by using sodium formate as raw materials
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
09/07/2012WO2012119064A1 Production of carboxylic acid and salt co-products
09/07/2012WO2012116820A1 Process for obtaining organic carboxylic acids from aqueous mixtures
09/07/2012CA2828893A1 Production of carboxylic acid and salt co-products
09/06/2012US20120226060 Process for the catalytic cleavage of vegetable oils
09/05/2012CN202410232U Adipic acid decoloration system
09/05/2012CN202410195U Nitric acid recovery evaporation system in adipic acid process
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
09/05/2012CN101693656B High-conversion and high-yield process for producing oxalic acid by calcifying method
09/04/2012US8258339 Hydrolyzed nitrilotriacetonitrile compositions, nitrilotriacetonitrile hydrolysis formulations and methods for making and using same
08/2012
08/30/2012WO2012046250A3 Polymorphic forms of o-desmethyl-venlafaxine succinate field of the invention
08/29/2012CN102311195B Recycling utilization and processing method for wastewater generated in sebacic acid production process
08/23/2012US20120215028 Biobased polyol cross-linkers for use in preparing polyesters and reversible polyurethanes
08/23/2012US20120214919 Process
08/22/2012CN202387465U Large adipic acid reactor
08/22/2012CN1512966B Methods of making cesium salts and other alkali metal salts
08/22/2012CN102643190A Method for comprehensively utilizing gulonic acid mother liquor
08/22/2012CN101591231B Extraction technology for ammonium oxalate of bombyx batryticatus
08/15/2012CN102634442A Device and method for biologically manufacturing succinic acid by continuous crystallization
08/15/2012CN102633622A Rodlike hydrous cupric oxalate serving as lithium ion battery cathode material and preparation method for same
08/15/2012CN102633618A Hydroxy acid titanium complexes promoting detoxification of halogenated organic matter-polluted soil by means of dehalogenation, as well as preparation and application thereof
08/09/2012WO2012105543A1 Mixed solution production device and mixed solution preparation method
08/08/2012EP1471047B1 Process for producing dicarboxylic acid
08/08/2012CN202366698U Decoloration tank for producing long-chain binary acid
08/08/2012CN202366697U Activated carbon size mixing equipment for producing long-chain dicarboxylic acid
08/08/2012CN102627550A Preparation methods of butanetetracarboxylic acid and butanetetracarboxyl dianhydride
08/08/2012CN101489970B Method for producing succinic acid
08/02/2012US20120197043 Method of purifying a dicarboxylic acid
08/02/2012CA2841761A1 Safety system for an ozone absorber column
08/02/2012CA2841602A1 Cleaning compositions and method of using the same
08/02/2012CA2841599A1 An improved method of purifying a dicarboxylic acid
08/02/2012CA2841595A1 A method of purifying a dicarboxylic acid compound
08/01/2012EP1890990B1 Method for making carboxylic acids
08/01/2012CN102618393A Method for preparing hydrogenated dimer acid
08/01/2012CN102617326A Preparation method for 2-methylsuccnic acid through Ni catalysis
08/01/2012CN102617325A Method for decoloration of succinic acid fermentation broth by ion exchange resin
08/01/2012CN102617320A Method for treating reaction solution containing long chain dicarboxylate
08/01/2012CN102614920A Silicon dioxide or polystyrene resin immobilized decatungstate catalyst and method for synchronizing adipic acid by catalytic oxidation of cyclohexene by using catalyst
07/2012
07/26/2012US20120190877 Method for the manufacture of dialkylphosphites
07/26/2012US20120189492 Fullerene compositions and methods for photochemical purification
07/25/2012CN102612563A Process for the preparation of a monovalent succinate salt
07/25/2012CN102603511A Method for producing anhydrous sodium succinate
07/25/2012CN101580464B Method for producing battery-grade ferrous oxalate by using ferrous sulfate as titanium pigment byproduct
07/25/2012CN101137606B Process for oxidation of organic compounds
07/18/2012CN1948260B Technology of producing sodium oxalate by sodium formate spray dehydrogenation and its equipment
07/18/2012CN102584577A Postprocessing method for synthetic borneol
07/18/2012CN102584561A Method for recovering glutaric acid by-products produced in enzymic method prepared 7-aminocephalosporin acid process
07/18/2012CN102584540A Technology for transforming biomass into organic acid by using papermaking black water
07/18/2012CN102583540A Method for preparing chrome oxide black and co-producing ferrous oxalate by utilizing chrome-containing cast iron acid dissolution
07/18/2012CN101698859B Production method of n-hexadecyl dibasic acid
07/18/2012CN101607885B Method for industrially producing cobaltous oxalate with low apparent density
07/18/2012CN101012165B Process of preparing oxalic acid by calcium sulfate cycle method
07/11/2012CN202322673U 一种己二酸分离系统 One kind of adipic acid separation system
07/11/2012CN102557916A Preparation method of special battery-grade ferrous oxalate for lithium iron phosphate
07/04/2012CN202289546U 己二酸结晶装置 Adipic acid crystallization device
07/04/2012CN102531880A Preparation method of spherical nickel oxalate
07/04/2012CN102530947A Application of serpentine to producing compounds
07/04/2012CN102530858A Method for preparing hydrogen by alcohol
07/04/2012CN102527523A Non-ferrous metal oxide ore chelate collector and preparation method thereof
07/04/2012CN102527292A Coupling link-free carboxylate Genmini surfactant and synthesis method thereof
07/04/2012CN101805255B New manufacturing method of dicarboxylic acid for electrolyte and salts thereof
07/04/2012CN101638360B Method for preparing cyclohexylpropionic acid
07/03/2012CA2670212C Method for converting nitrile compounds into corresponding carboxylic acids and esters
06/2012
06/28/2012US20120165569 Succinic acid production in a eukaryotic cell
06/27/2012CN102516092A Dicarboxylic hydrogen salt ionic liquid with asymmetric chemical structure and weak acidity, and preparation method thereof
06/27/2012CN101010087B High yield and rapid synthesis method for processing organic metal salt
06/21/2012WO2011069008A8 Carboxylic acid recovery and methods related thereto
06/21/2012US20120157370 Washing performance using radical traps
06/20/2012CN102503843A Preparation method for metoprolol salt
06/20/2012CN102503804A Method for continuously discoloring succinic acid fermentation liquor by using activated carbon
06/20/2012CN101386575B Method for preparing iron oxalate
06/19/2012US8203021 Processes for producing monoammonium succinate from fermentation broths containing diammonium succinate, monoammonium succinate and/or succinic acid, and conversion of monoammonium succinate to succinic acid
06/13/2012CN102498086A Methods for producing dodecanedioic acid and derivatives thereof
06/13/2012CN102489220A Continuous oxidation method and device for preparing oxalic acid
06/13/2012CN101492358B Method for producing low-phosphor dimer acid
06/13/2012CN101268033B Method for recovering tungsten
06/07/2012WO2012075361A2 In vivo copper-free click chemistry for delivery of therapeutic and/or diagnostic agents
06/06/2012CN101748161B Succinic acid purification process through anaerobic fermentation
05/2012
05/30/2012CN202246483U Continuous closed circulation system for mother liquid during the production of oxalate acid
05/30/2012CN202238059U Reaction kettle for oxidation synthesis process in industrial oxalic acid production
05/30/2012CN102476990A Method for extracting and refining long-chain dicarboxylic acid crude product
05/30/2012CN102476989A 一种基于全膜分离系统的丁二酸分离装置及方法 An apparatus and method for the membrane separation system based on the whole acid separation
05/30/2012CN102476987A Method for refining long chain binary acid by combining ultrafiltration and liquid-liquid extraction
05/30/2012CN102476975A 一种镁和铝改性的钛硅分子筛催化氧化环酮的方法 A titanium silicalite catalyzed oxidation of magnesium and aluminum modified method of cyclic ketones
05/23/2012CN1903821B Technology of producing sodium oxalate by continuous dehydrogenation of sodium formate and its equipment
05/23/2012CN102464579A 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
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