Patents
Patents for C07C 55 - Saturated compounds having more than one carboxyl group bound to acyclic carbon atoms (3,355)
04/2001
04/17/2001US6218573 Methods of recovering catalyst in solution in the oxidation of cyclohexane to adipic acid
04/12/2001WO2001025467A1 Improved fermentation process
04/12/2001CA2386169A1 Improved fermentation process
04/11/2001EP1089959A1 Methods of extracting catalyst from a reaction mixture in the oxidation of cyclohexane to adipic acid
04/11/2001CN1291179A Methods and devices for separating catalyst from oxidation mixtures
04/10/2001US6214190 Stack of cells
04/05/2001WO2001023061A2 Recovery process for volatile compounds from solids in aqueous solution
04/05/2001CA2379624A1 Recovery process for volatile compounds from solids in aqueous solution
04/04/2001CN1290244A Process for treating cobalt catalyst in oxidation mixtures of hydrocarbons to dibasic acids
04/04/2001CN1289757A Process for extracting alpha-or omege-alkadicarboxylic acid from fermented liquid and refining it
03/2001
03/28/2001EP0970032A4 Method for preparing cleaved products from castor oil or derivatives thereof
03/20/2001US6204402 Organometallic compound
03/20/2001US6204391 Water soluble fullerenes with antiviral activity
03/15/2001WO2001017375A1 Calcium fortified emulsified fat product and calcium salts
03/14/2001EP1082328A1 Production of optically active phospholanes
03/13/2001US6201151 Processes for preparing optically active (S)-α-aryl propionic acid or ester therof
03/07/2001EP1080064A1 Controlled oxidation of hydrocarbons to intermediate oxidation products
02/2001
02/28/2001CN1285814A Method and devices for separating catalyst from oxidation mixtures containing dibasic acids
02/07/2001EP1074540A1 Process for the recovery of saturated dicarboxylic acids from the ozonolysis of unsaturated fatty acids
02/07/2001EP1074536A1 Oxidation method
02/06/2001US6183621 Basic cobaltous carbonates, process for preparing the same and their use
02/05/2001CA2314943A1 Method of producing dicarboxylic acids suitable for synthesis of polymers or polyamides
01/2001
01/23/2001US6177053 Catalyst precipitation
01/17/2001CN1280557A Process to separate rhodium from an organic mixture
01/17/2001CN1280519A Method and device for global warming prevention
01/17/2001CN1060758C Method for recovering useful materials from saponified waste lye
01/16/2001CA2039265C Nitrile-accelerated hydrocarboxylation
01/10/2001EP1067112A2 Carboxylic acid derivatives and their synthesis method
01/04/2001WO2001000557A1 Method for making adipic acid
01/04/2001WO2001000555A1 A process for preparation of adipic acid
01/04/2001CA2377179A1 Method for making adipic acid
01/03/2001CN1060157C Process for obtaining adipic acid
12/2000
12/26/2000US6166252 Process for preparing dichlorofluoroacetyl halides
12/26/2000US6166156 Method for making photocurable halofluorinated acrylates
12/21/2000WO2000076661A1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups
12/21/2000CA2374224A1 Selective separation of iron by treatment with an ion-exchanging resin comprising diphosphonic acid groups
12/20/2000EP1060157A1 Method for separating and purifying adipic acid
12/20/2000EP1059975A2 Purification of organic acids using anion exchange chromatography
12/13/2000CN1276776A Method of recycling catalyst in oxidations of hydrocarbons
12/12/2000CA2138154C Simultaneous production of dicarboxylic acids and diamines from polyamides
12/12/2000CA2138024C Simultaneous production of dicarboxylic acids and diamines by splitting polyamides into their monomeric constituents
12/06/2000EP1056706A1 Methods and devices for separating catalyst from oxidation mixtures
12/06/2000EP1056594A1 A-site and/or b-site modified pbzrtio3 materials and films
11/2000
11/29/2000EP1054856A1 Process for treating cobalt catalyst in oxidation mixtures of hydrocarbons to dibasic acids
11/23/2000WO2000069808A1 Process for preparing r-(-)-carnitine from s-(-)-chlorosuccinic acid or from a derivative thereof
11/23/2000CA2372424A1 Process for preparing r-(-)-carnitine from s-(-)-chlorosuccinic acid or from a derivative thereof
11/21/2000US6149836 Nondiscoloring, storage stable liquid melt of an aliphatic or cycloaliphatic dicarboxylic acid of 6 to 44 carbon atoms in a lactam of an aliphatic alpha, omega-aminocarboxylic acid having 6 to 16 carbon atoms
11/16/2000CA2402258A1 A process for concentrating azelaic acid
11/14/2000US6147256 Co/Cr catalyzyed oxidation of cyclohexane
11/08/2000CN1058257C Process for production of cyclohexyl adipates
10/2000
10/26/2000WO2000063147A1 Methods of replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst
10/26/2000CA2367470A1 Methods of replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst
10/24/2000US6137005 Mixing and reacting k-, na-, cs- or nh.sub.4-formate; k-, na-or cs-hydroxide; k-, na- or cs-carbonate; k-, na- or cs-bicarbonate; or nh.sub.3 with formic acid containing water; cooling, filtering, recirculting filtrate; drying filter cake
10/18/2000EP0988274A4 Carboxylic acids and derivatives thereof and pharmaceutical compositions containing them
10/18/2000CN1270578A Methods and devices for removing acetic acid from cyclohexane in the production of adipic acid
10/18/2000CN1270577A Methods and reactor devices for removing catalyst after oxidation of hydrocarbons
10/17/2000CA2151695C Process for the separation of aliphatic diacids from mixtures thereof with adipic acid
10/17/2000CA2151392C Process for treating a polymer-containing material by hydrolysis
10/12/2000WO2000059858A1 Hydrocarbon, alcohol and/or ketone oxidation method
10/12/2000CA2368004A1 Hydrocarbon, alcohol and/or ketone oxidation method
10/10/2000US6129875 Process of separating catalyst from oxidation mixtures
10/04/2000EP1040862A1 Method and device for global warming prevention
10/04/2000EP1040093A2 Methods and devices for separating catalyst from oxidation mixtures containing dibasic acids
09/2000
09/20/2000EP1036056A1 Process to separate rhodium from an organic mixture
09/20/2000EP0804403B1 A method for forming two terminal carboxylic acid groups from an ozonide
09/05/2000CA2225381C Nitric acid hydrolysis of polyamides
08/2000
08/30/2000CN1265089A Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting solvent to hydrocarbon ratio
08/29/2000CA2197988C Conversion of nylon 6 and/or nylon 6,6 to adipic acid
08/24/2000WO2000048981A1 Methods of extracting catalyst in solution in the manufacture of adipic acid
08/24/2000WO2000048972A1 Oxidation method
08/24/2000CA2363033A1 Methods of extracting catalyst in solution in the manufacture of adipic acid
08/23/2000EP0824511B1 Method for manufacture of products containing disalts of formic acid
08/16/2000CN1263082A Method for preparing oxalic acid by using diethyl oxalate
08/15/2000US6103933 Methods for controlling the oxidation rate of a hydrocarbon by adjusting the ratio of the hydrocarbon to a rate-modulator
08/10/2000WO2000046172A1 Oxidation of hydrocarbons to acids in the presence of fluoro compounds
08/10/2000CA2361709A1 Oxidation of hydrocarbons to acids in the presence of fluoro compounds
08/01/2000US6096424 Cobalt(II) oxide containing cobalt metal, a process for producing it and its use
07/2000
07/19/2000CN1054640C Production technology for sodium citrate
07/19/2000CN1054510C Stable solution of rebeccamycin analog and preparation thereof
07/12/2000EP1017662A1 Methods of recycling catalyst in oxidations of hydrocarbons
07/05/2000EP1016645A1 Method of recovering adipic acid and 6-hydroxycaproic acid from waste solution of alkali metal salts of organic acids coming from the process of cyclohexane oxidation
07/05/2000EP1015409A1 Methods and devices for removing acetic acid from cyclohexane in the production of adipic acid
07/05/2000EP1015406A1 Methods and reactor devices for removing catalyst after oxidation of hydrocarbons
06/2000
06/29/2000WO2000037710A1 Indium source reagent compositions
06/07/2000EP1005477A2 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles
06/07/2000CN1255714A Long-chain diacid compsn. and electrolyte made therefrom
06/07/2000CN1255483A Process for refining long-chain biatomic acid
06/06/2000CA2015424C Preparation of adipic acid from lactones
05/2000
05/31/2000EP1005053A2 Composition comprising long chain dibasic acids and electrolytic solution using thereof
05/31/2000EP1003707A1 Malonic acid and esters thereof
05/24/2000EP1001925A1 Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting the solvent to hydrocarbon ratio
05/23/2000CA2114635C Process for preparing adipic acid
05/18/2000WO2000027782A1 New method for making photocurable halofluorinated acrylates
05/18/2000CA2350539A1 New method for making photocurable halofluorinated acrylates
05/16/2000US6063958 Method of recovering adipic acid and 6-hydroxycaproic acid from waste solution of alkali metal salts of organic acids coming from the process of cyclohexane oxidation
05/16/2000CA2138153C Electrochemical preparation of dicarboxylic acids
05/03/2000EP0848695B1 Alkenyl-substituted dicarboxylic acid or anhydride ester derivatives
05/03/2000EP0741667B1 Production of no from n 2?o
05/03/2000CN1252048A Dicarboxylic acid crystallizates
05/03/2000CN1252045A Preparation of cleaved products from castor oil or derivatives thereof
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