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)
11/1996
11/19/1996US5576458 Alcohol reacted with carbon monoxide using a rhodium catalyst
11/19/1996US5576455 Process for the preparation of fluorinated benzoic acids
11/17/1996CA2174922A1 Process for the recovery of an organic acid from the manufacture of a cellulose ester
11/14/1996WO1996035658A1 Compositions of enantiomeric diacyl tartaric anhydrides and preparation thereof
11/14/1996WO1996035657A1 Method for manufacture of products containing disalts of formic acid
11/13/1996EP0742204A1 Photochemical method for the preparation of 13-cis-retinoic acid
11/13/1996EP0741686A1 New leukotriene b 4? derivatives, methods of preparing them and their use as drugs
11/13/1996EP0741685A1 Production of hydroxy acids
11/13/1996EP0741684A1 Process for preparing carboxylic acids by carbonylation of ethers and thioethers
11/13/1996EP0741667A1 Production of no from n 2?o
11/13/1996EP0641256B1 Process for the transformation of vanadium/phosphorus mixed oxide catalyst precursors into active catalysts for the production of maleic anhydride
11/13/1996EP0624152B1 Process for preparing ketone enantiomer
11/13/1996CN1135747A A Process for separating lipophilic compounds
11/13/1996CN1135729A Method for the production of catalytically active multi-metal compositions containing the elements V and Mo in oxide form
11/13/1996CN1135476A Method for preparation of terephthalic acid and isomer thereof
11/13/1996CN1033271C Method for producing citric acid
11/13/1996CN1033270C Process for purifying acetic acid and/or acetic anhydride
11/12/1996US5574183 Stereoselective salt formation with n-alkyl-glucamine
11/12/1996US5574180 Process for recovering phytic acid, lactic acid or inositol
11/12/1996US5574172 Zeolite
11/12/1996US5573992 Process for the calcination/activation of V/P/O catalyst
11/12/1996US5573949 Enzymatic process for the preparation of optically active Tetrahydro-2-naphthoic acids
11/07/1996WO1996034842A1 Separation of alpha-arylpropionic acid ester diastereomers by distillation
11/06/1996EP0741183A1 Process for the fractionation of fatty acids
11/06/1996EP0741123A1 Process for the preparation of salts of substituted or unsubstituted phthalic acid derivatives
11/06/1996EP0741122A1 Process for preparing aromatic compounds through decarboxylation of aromatic carboxylic acids
11/06/1996EP0593546B1 Oxidation of alkylaromatics
11/06/1996CN1033226C Method for prepn. of alkoxyalkanoic acids
11/05/1996US5571908 Porphyrins
11/05/1996US5571880 Catalysts for polymerization of olefins especially to obtain syndiotactic polymers
11/05/1996US5571386 Process for grade acrylic acid
11/03/1996CA2175535A1 Process for the preparation of aromatic compounds by decarboxylation of aromatic carboxylic acids
11/03/1996CA2175527A1 Process for the preparation of salts of substituted or unsubstituted phthalic acids
10/1996
10/31/1996WO1996033966A1 Gelation additive for hydraulic fracturing fluids
10/31/1996WO1996033965A1 Process for producing acetic acid
10/31/1996WO1996033804A1 Process for the regeneration of a catalyst
10/30/1996EP0572628B1 Process for preparing purified 2,6-naphthalenedicarboxylic acid
10/30/1996CN1033162C Process for preparing fumaric acid as food additive
10/30/1996CN1033161C Improvement of carbonylation process
10/29/1996US5569782 Process for preparing polyfluorochlorocarbonyl chlorides and perfluorocarbonyl chlorides with addition of chlorine
10/29/1996US5569636 Multimetal oxide compositions
10/29/1996CA2105063C Process for removing acetone from carbonylation processes
10/29/1996CA2095111C Continuous production of aromatic carboxylic acids
10/24/1996WO1996033012A1 Process for the regeneration of a catalyst
10/23/1996EP0738701A1 Process for the carbonylation of butadiene
10/23/1996CN1134153A Matrix metalloprotease inhibitors
10/23/1996CN1134121A Catalyst based on Fe, Co, Bi and Mo oxides
10/23/1996CN1133833A Method and apparatus for recovering carboxylic acids from aqueous solutions
10/23/1996CN1133832A Method for producing aromatic carboxylic acids
10/22/1996US5567855 Lactol ring opening
10/22/1996US5567842 Process for producing terephthalic acid
10/22/1996US5567730 Method of stabilizing an ω-3 unsaturated fatty acid compound
10/22/1996CA1338673C Catalyst recycle in the carbonylation of isobutylphenylethanol to ibuprofen
10/17/1996WO1996032193A1 Process for the regeneration of a catalyst
10/16/1996EP0737509A1 Crystallized beads of a product which can be supercooled and process to prepare them
10/16/1996EP0737238A1 Process for removing chlorophyll color impurities from vegetable oils
10/16/1996EP0737180A1 Process for the preparation of 5-formylvaleric acid and 5-formylvalerate ester
10/16/1996EP0737103A1 Process for producing an iridium solution and use of same as catalyst.
10/16/1996EP0612310B1 Process for the manufacture of cinnamic acid derivatives
10/16/1996CN1133303A Polyurethane and moulded products containing this polyurethane
10/16/1996CN1133175A Medicine for cancer
10/16/1996CN1033028C Process for preparing new derivatives of 2,2-dimethyl cyclopropane carboxylic acid
10/16/1996CN1033026C Improved temp. control method for preparing 2,2'oxodixuccinates used as clohtes detergent aid agent
10/16/1996CN1033025C Process for decomposing alpha, beta-unsaturated carbonyl compounds in refining acetic anhydride and/or acetic acid
10/16/1996CN1033024C Process for extraction of dicarboxylic acid and its esters from waste liquid after production of hexandioic acid
10/15/1996US5565614 2,4,5-trihalogeno-and 2,3,4,5-tetrahalogenobenzene derivatives
10/15/1996US5565609 Forming aqueous solution of organic amine salt of said acid, removing impurities, thermally decomposing salt in presence of alkylene glycol, recovering pure acid
10/15/1996US5565593 Chiral phospholanes via chiral 1,4-diol cyclic sulfates
10/15/1996US5565592 Vinly-substituted bridged metallocenes
10/15/1996US5565081 Processes for the preparation of 2,2,3,3-tetrafluoropropionate salts and derivatives thereof
10/15/1996US5565039 Method for dissolution of soft metals from a substrate of a harder metal
10/10/1996WO1996031506A1 Method to produce and purify cyclic esters
10/10/1996WO1996031494A1 Method to produce and purify cyclic esters
10/10/1996WO1996031456A1 Recovery of acetic acid from dilute aqueous streams formed during a carbonylation process
10/10/1996WO1996031455A1 Method for oxidising hydrocarbons, alcohols or ketones using heterogeneous catalysis
10/10/1996WO1996031435A1 Process for the production of cesium compounds
10/10/1996CA2215472A1 Method for oxidising hydrocarbons, alcohols or ketones using heterogeneous catalysis
10/09/1996EP0736536A1 Long chain dialkyl magnesium compounds, their preparation and use
10/09/1996EP0736315A1 Crystallizer
10/09/1996EP0736001A1 Aryl acetic acid derivatives
10/09/1996EP0549593B1 Method for racemization of non-racemic 3-oxocyclopentane or 3-oxocyclohexane carboxylic acids and their esters with c 1-c 6 alcohols
10/09/1996EP0456837B1 Process for producing methacrolein and methacrylic acid
10/09/1996CN1132736A Prepn process of lead iso-caprylate
10/08/1996US5563303 Production of xylitol
10/08/1996US5563295 Process for producing optically active carboxylic acid
10/08/1996US5563294 High temperature noncatalytic hydrolysis of dialkyl-2,6-naphthalenedicarboxylate in water
10/08/1996US5563293 Oxidizing p-xylene, washing in different zones, recycling wassh water
10/08/1996US5563290 Hydrogenating an itaconic acid compound in presence of rhodium compound and a 2,2?-bis(hydrocarbon residue-substituted) phosphine substituted alkyl)-1,1?-biferrocene compound
10/08/1996CA2042409C Extraction process for removal of impurities from terephthalic acid filtrate
10/03/1996WO1996030327A1 Process for the production of aromatic carboxylic acids
10/02/1996EP0735014A1 Process for the selective oxidation of compounds
10/02/1996EP0734372A1 Process for preparing aromatic carboxylic acids with efficient energy recovery
10/02/1996EP0734363A1 Fluorination process
10/02/1996CN1132503A Method for preparing of mono or Di-2-substituted cyclopentanone
10/01/1996US5561168 Iodide removal process
10/01/1996US5561057 Resolution of (RS)-ibuprofen by Candida antarctica catalyzed esterification with long chain alcohols while removing water
09/1996
09/26/1996WO1996029323A1 Process and apparatus for the preparation and recovery of maleic anhydride
09/26/1996WO1996029299A1 Method for oxidizing 6-hydroxyhexanoic acids
09/26/1996WO1996029298A1 Process for producing polyfluoroacyl compositions
09/26/1996DE19510890A1 Gas or liq. phase reaction process, e.g. vinylation
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