Patents
Patents for C07C 55 - Saturated compounds having more than one carboxyl group bound to acyclic carbon atoms (3,355)
02/2002
02/06/2002EP1036056B1 Process to separate rhodium from an organic mixture
01/2002
01/24/2002WO2002006202A1 Process for the preparation of enantiomerically pure pyrethroid insecticides
01/24/2002DE10130740A1 Malonic acid monoester and beta-keto-ester preparation from epoxide in high yield, for use as intermediates, by hydroesterification over cobalt compound catalyst followed by catalytic oxygenation
01/22/2002US6340420 Methods of treating the oxidation mixture of hydrocarbons to respective dibasic acids
01/17/2002WO2002004397A1 Method for producing fluorine-containing compound
01/17/2002WO2002004396A1 Retardation of discolouration of dicarboxylic acids
01/17/2002CA2412168A1 Retardation of discolouration of dicarboxylic acids
01/16/2002EP1172353A1 Retardation of discolouration of dicarboxylic acids
01/16/2002EP1171409A1 Methods of replacing water and cyclohexanone with acetic acid in aqueous solutions of catalyst
01/09/2002CN1330064A Method for producing malonate derivative or beta-ket-acid ester by epoxide derivative
01/08/2002US6337051 Device for detecting formation of a second liquid phase
01/03/2002WO2002000588A1 Method for oxidising hydrocarbons, alcohols and/or ketones
01/03/2002CA2413848A1 Method for oxidising hydrocarbons, alcohols and/or ketones
01/02/2002EP1165481A1 Hydrocarbon, alcohol and/or ketone oxidation method
12/2001
12/25/2001CA2250801C Method for separating a catalyst by membrane electrodialysis
12/19/2001EP0711270B1 Polymers comprising 4-substituted cyclohexane units
12/19/2001CN1326919A Method for separating and purifying niacin
12/12/2001EP0873433B1 Process for the preparation of tetraalkyl 1,2,3,4-butanetetracarboxylates
12/05/2001CN1324787A Prepn. of butane tetracarboxylic acid
12/05/2001CN1075811C Substituted 2,4-thiazolindione derivative, its preparation method and medicinal composition containing same
12/04/2001US6326455 Methods for treating cobalt catalyst in oxidation mixtures resulting from oxidation of hydrocarbons to dibasic acids
11/2001
11/28/2001EP1157000A1 Branched chain amino acid-dependent aminotransferase inhibitors and their use in the treatment of diabetic retinopathy
11/22/2001WO2001087815A2 Process for the production of carboxylic acids
11/21/2001EP1154977A1 Methods of extracting catalyst in solution in the manufacture of adipic acid
11/21/2001CN1323288A Method for crystallising carboxylic acid
11/15/2001US20010041801 Prevent human retroviral reproduction, infections
11/07/2001EP1150938A1 Oxidation of hydrocarbons to acids in the presence of fluoro compounds
11/07/2001EP0971869B1 Low water diamine/dicarboxylic acid salt preparation
11/07/2001CN1320592A Process and equipment for preparing sodium diacetate
11/06/2001US6313327 Carboxylic acid derivatives and their synthesis method
11/06/2001US6312816 A-site- and/or B-site-modified PbZrTiO3 materials and (Pb, Sr, Ca, Ba, Mg) (Zr, Ti, Nb, Ta)O3 films having utility in ferroelectric random access memories and high performance thin film microactuators
10/2001
10/31/2001EP0912485B1 Pentenoic acid hydroxycarbonylation method
10/31/2001CN1073981C Method for purifying adipic acid water
10/25/2001WO2001023061A3 Recovery process for volatile compounds from solids in aqueous solution
10/23/2001CA2222365C Process for treating mixtures arising from oxidation of cyclohexane
10/17/2001EP1144718A1 Indium source reagent compositions
10/17/2001CN1073066C Process for improving purity of hexane diol-1, 6
10/11/2001WO2001074828A1 Water soluble chiral diphosphines
10/04/2001WO2001072732A2 Oxidation of 5-(hydroxymethyl) furfural to 2,5-diformylfuran and subsequent decarbonylation to unsubstituted furan
10/04/2001CA2400165A1 Oxidation of 5-(hydroxymethyl) furfural to 2,5-diformylfuran and subsequent decarbonylation to unsubstituted furan
10/03/2001CN1315317A Process for preparing low-turbidity enetutanedioic acid anhydride
09/2001
09/26/2001CN1314877A Method of producing an aliphatic diacid and nitrous oxide
09/26/2001CN1071734C Method for processing the mixture from cyclohexane oxidation
09/26/2001CN1071732C Manufacture of adipic acid
09/20/2001US20010023285 Reduction of cobalt catalyst if dewatering or precipitation is desired; oxidizing or mainteining valence if not
09/19/2001CN1071305C Preparation of linear chain omega-formyl pentanoic acid or correspondant linear chain formyl nitrile compounds
09/19/2001CN1071304C Method of recycling catalyst in reaction involving direct oxidation of cyclohexane into adipic acid
09/13/2001WO2001066502A1 Method for oxidising hydrocarbons into acids
09/13/2001US20010021785 Indium source reagent compositions, and use thereof for deposition of indium-containing films on substrates and ion implantation of indium-doped shallow junction microelectronic structures
09/13/2001US20010021781 Catalyst for hydrogenating dicarboxylic acids
09/13/2001CA2403212A1 Method for oxidising hydrocarbons into acids
09/12/2001CN1070838C Method and device for making in termediate oxidation products by controlling conversions and temperatures in an atomized liquid
09/12/2001CN1070837C Preparation of carboxylic acids or related esters by carbonylation in the presence of inidium
09/12/2001CN1070734C Process for producing iridium solution and use of same as catalyst
09/07/2001WO2001064614A1 Method for producing chlorocarboxylic acid chlorides
09/06/2001DE10010595A1 Production of chloroalkanoyl chloride, such as 5-chlorovaleryl chloride, used in synthesis of active pharmaceutical and agrochemical compounds, comprises introducing hydrogen chloride during heat-up in catalytic phosgenation of lactone
09/05/2001EP1129058A1 New method for making photocurable halofluorinated acrylates
09/04/2001US6284904 Purification of organic acids using anion exchange chromatography
09/04/2001US6284903 Treating hyperlipidemia, obesity and impaired glucose tolerance/noninsulin dependent diabetes mellitus without adversely affecting energy metabolism
08/2001
08/22/2001CN1309627A Methods of extracting catalyst from reaction mixture in oxidation of cyclohexane to adipic acid
08/21/2001US6277305 Reacting aqueous solution of cobalt salts with alkali metal, alkaline earth metal or ammonium carbonate, hydrogen carbonate or hydroxide and organic compound containing at least one carboxyl group, separating coprecipitate formed, calcining
08/18/2001CA2336740A1 Raney copper
08/15/2001CN1308599A Method of separating catalyst in solution from a reaction mixture produced by oxidation of cyclohexane to adipic acid
08/15/2001CN1069632C Method for purifying adipic acid by crystallization
08/15/2001CN1069631C Process for making adipic acid and dibasic acid
08/08/2001CN1307555A Controlled oxidation of hydrocarbons to intermediate oxidation products
08/08/2001CN1069304C Method for prepn. of diacid by using washing water from cyclohexane oxidation products
07/2001
07/25/2001EP0937025B1 Manufacture of adipic acid
07/25/2001CN1305446A production of organic compounds which are low in fluoride
07/18/2001EP1115685A1 Method of producing an aliphatic diacid and nitrous oxide
07/12/2001US20010007875 Antidiabetic agents
07/11/2001EP1114019A1 Method for separating and purifying carboxylic acid derived from the direct oxidation of a hydrocarbon
07/11/2001EP1114018A1 Method for crystallising carboxylic acid
07/11/2001EP0912484B1 Method for purifying adipic acid in water
07/10/2001US6258288 Used as the electrolyte of an electrolytic solution for electrolytic capacitors
07/04/2001EP1112776A1 Pd-Re catalyst for hydrogenating dicarboxylic acids
07/04/2001EP0748326B1 Optically active diphosphines and method for preparing same by resolution of the racemic mixture
07/03/2001US6255503 Water-soluble salts of dodecandioic acid and pharmaceutical and nutritional compositions containing same
06/2001
06/27/2001CN1301267A Production of optically active phospholanes
06/19/2001CA2222367C Procedure for the preparation of dibasic acids from washings from the products of cyclohexane oxidation
06/14/2001WO2001042191A1 Branched chain amino acid-dependent aminotransferase inhibitors and their use in the treatment of diabetic retinopathy
06/14/2001CA2361647A1 Branched chain amino acid-dependent aminotransferase inhibitors and their use in the treatment of diabetic retinopathy
06/13/2001EP1105400A1 Asymmetric catalysis based on chiral phospholanes
06/06/2001CN1066708C Process for separating fatty bi-acid from mixture of fatty bi-acid adipic acid
06/05/2001US6242615 Amidation of acid containing compounds; useful in inhibiting tumor necrosis factor and metalloproteinases
05/2001
05/24/2001US20010001649 Methods and devices for separating catalyst from oxidation mixtures containing dibasic acids
05/16/2001CN1065798C Flux composition and corresponding soldering method
05/15/2001US6232495 Oxidation of cobalt; dehydration; reduction; thrmal precipitation
05/09/2001EP0918741B1 Method for purifying adipic acid by crystallization
05/09/2001CN1294569A 氧化方法 Oxidation method
05/09/2001CN1065511C Prepn. for carbonyl fluoride
05/08/2001US6228245 Process for the preparation of tetraalkyl 1,2,3,4-butanetetracarboxylates
05/02/2001EP1094999A2 Production of organic compounds which are low in fluoride
04/2001
04/25/2001CN1064951C Method for refining long-chain bibasic acid
04/24/2001US6222069 Method for purifying adipic acid in water
04/19/2001WO2001027075A1 Process for the production of acrylonitrile using direct contact spray heat exchange in the absorber
04/18/2001EP1091921A1 Methods of separating catalyst in solution from a reaction mixture produced by oxidation of cyclohexane to adipic acid
04/18/2001CN1292023A Purification of organic acid using anion exchange chromatography
04/18/2001CN1291971A Method for separating and purifying adipic acid
04/17/2001US6218574 Process for purifying long-chain dicarboxylic acid
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