| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 09/08/1992 | US5145971 Hydrolysis, solvent extraction |
| 09/08/1992 | US5145611 Diabetes |
| 09/08/1992 | US5145488 Fuel additives |
| 09/08/1992 | US5144965 Vanillin carboxylate type additive pyrolyzes to ethyl vanillin; cigarettes |
| 09/08/1992 | CA1307294C Process for the preparation of monocarboxylic anhydrides |
| 09/08/1992 | CA1307293C Process for the preparation of monocarboxylic anhydrides |
| 09/02/1992 | EP0501757A2 Production of hydrocarbon derivatives |
| 09/02/1992 | EP0501556A1 Fatty acid halide manufacture |
| 09/02/1992 | CN1064072A Process for preparing 2-hydroxy-3-naphthoic acid with 99% concentration |
| 09/01/1992 | US5144070 Process for the preparation of α-iodocarbonyl compounds |
| 09/01/1992 | US5144068 Methanol carbonylation process |
| 09/01/1992 | US5144067 Process for the coproduction of alkyl iodides and alpha-iodocarboxylic acids and/or anhydrides thereof |
| 09/01/1992 | US5144066 Oxidation of dialkyl-substituted naphthalene |
| 09/01/1992 | US5144050 Ruthenium(II)-BINAP diketonate complexes |
| 09/01/1992 | US5143834 Anaerobic fermentation, electrodialysis, ion exchange |
| 09/01/1992 | US5143589 Perfluoropolyethers containing a halogen different from fluorine and having an acid end group |
| 09/01/1992 | US5143147 Cooling process associated with a process employing anhydrous hydrofluoric acid |
| 09/01/1992 | CA1307004C Process for recovering methacrolein |
| 08/29/1992 | WO1992015545A1 Basic calcium aluminium hydroxide dicarboxylates, method for preparing them and use thereof |
| 08/29/1992 | CA2104779A1 Basic calcium aluminum hydroxide dicarboxylates, a process for their production and their use |
| 08/28/1992 | CA2059959A1 Process for the production of petrochemicals |
| 08/26/1992 | CN1063879A Method for making multi-molecular coupling agent from castor oil, epoxy soybean oil |
| 08/26/1992 | CN1063866A Process for preparation of halogenated compounds |
| 08/26/1992 | CN1063865A Removal of carbonyl impurities from carbonylation process stream |
| 08/25/1992 | US5142099 Enantioselective process |
| 08/25/1992 | US5142097 Recovery and recycle of acetic acid in an oxidation process |
| 08/25/1992 | US5142029 Silver halide photographic material containing a compound with variable development restraining ability |
| 08/25/1992 | US5141604 Absorption of hydrogen; desorption |
| 08/25/1992 | CA1306733C Catalytic system and process for alkane carboxylation |
| 08/20/1992 | WO1992006063A3 Carbonylation of allylic alcohols and synthesis of an ambergris fragrance compound |
| 08/20/1992 | DE4105125A1 Continuous tartaric acid recovery from e.g. grape residues - by mixing with recycled extract, water and inorganic acid, then sepn. and washing of solids |
| 08/19/1992 | CN1063677A Method for preparing monochloro-acetic acid |
| 08/18/1992 | US5140035 Fungicidal triazolymethyl-cyclopropyl derivatives |
| 08/18/1992 | US5139991 Cobalt, nickel, lead or silver chloride layer, alkali metal chloride layer, rare earth chloride, on pyrogenic carrier |
| 08/18/1992 | US5139981 Process for preparing silver(I)-exchanged resins |
| 08/18/1992 | US5139628 Selectively brominating 2-chloro-4-toluenesulfonic acid in anhydrous solvent with bromine dissociated by radiation, extracting into aqueous phase, hydrolyzing, oxidizing with percarboxylic acid or bromine |
| 08/18/1992 | CA1306466C Oxidation of thiols, disulfides and thiosulfonates |
| 08/15/1992 | CA2061145A1 Process for the preparation of perfluoropolyetheracyl fluorides |
| 08/13/1992 | DE4103490A1 Partial hydrogenation of poly-unsatd. fatty acid to mono-unsatd. acid - using catalyst prepd. by adding alkali carbonate to soln. of copper and zinc salts, and sepg., drying and calcining ppte. |
| 08/12/1992 | EP0498591A2 Process for the production of terephthalic acid |
| 08/12/1992 | EP0498240A1 Derivatives of diphenylmethane, process for their preparation and their use in supplanting iodothyronines and the proteins binding them |
| 08/12/1992 | EP0497888A1 Substituted benzoylbenzene-, biphenyl- and 2-oxazole- alkanoic acid derivatives as inhibitors of pla 2? and lipoxygenase |
| 08/12/1992 | EP0497759A1 Process for the recovery of catalyst values. |
| 08/12/1992 | CN1063484A Preparation of butanedioic anhydride by one-step catalytic hydrogenation of cis-anhydride |
| 08/12/1992 | CN1063483A Technology for preparation of anhydrous formic acid |
| 08/12/1992 | CN1063482A Process for preparation of granular lead stearate |
| 08/11/1992 | US5138096 New continuous industrial manufacturing process for an aqueous solution of glyoxylic acid |
| 08/11/1992 | US5138090 Substituted biphenyls |
| 08/11/1992 | US5137980 Reacting polyisobutene with aacidic reactant; super atmospheric pressure; low tar rating |
| 08/11/1992 | US5137978 Reacting acidic reactant with polyisobutylene under super atomospheric pressure; minimal tar formation |
| 08/11/1992 | US5137860 Controlling temperature in atmosphere of air and/or steam, inert gas, and molecular oxygen |
| 08/11/1992 | CA1306237C Process for regenerating a carbonylation catalyst solution to remove corrosion metals |
| 08/06/1992 | WO1992012955A1 Process for producing branched fatty substances |
| 08/06/1992 | WO1992001675A3 Substituted bicyclic bis-aryl compounds exhibiting selective leukotriene b4 antagonist activity, their preparation and use in pharmaceutical compositions |
| 08/05/1992 | EP0497740A1 Benzyloxyphenyl derivatives |
| 08/05/1992 | EP0497662A1 Process for fabricating alkali metal or alkali earth metal terephtalate or of terephtalic acid having elevated purity from polyol polyterephtalate, in particular from a polyterephtalate ethylene glycol waste |
| 08/05/1992 | EP0497521A2 Removal of carbonyl impurities from a carbonylation process stream |
| 08/05/1992 | CN1063309A Solvent extraction method concentration process of gibberellin fermented filtrate |
| 08/05/1992 | CN1063277A Carbonylation of olefins |
| 08/04/1992 | US5136090 Biphenyl-5,5'-bis-alkanoic acid derivatives, their production and aldose reductase inhibitors containing the same |
| 08/04/1992 | US5136089 Acylation of alkyl aromatic hydrocarbons |
| 08/04/1992 | US5136081 Fungicides |
| 08/04/1992 | US5136057 Solvent extraction of recyclable lactic acid from impure lactide |
| 08/04/1992 | US5135860 Process for preparing glyoxylic acid/aminomethylphosphonic acid mixtures |
| 08/04/1992 | US5135573 Removal of metal soaps from hydrogenated fatty products |
| 08/04/1992 | CA1305974C Hydrocarbon oxidations catalyzed by iron coordination complexes containing a halogenated ligand |
| 08/02/1992 | CA2060352A1 Benzyloxyphenyl derivatives |
| 07/31/1992 | CA2060411A1 Process for producing high purity alkaline or alkaline earth metal terephthalate or terephthalic acid from polyol polyterephthalate, especially from ethylene glycol polyterephthalate wastes |
| 07/30/1992 | DE4102501A1 Oligomerising di: and poly:unsatd. fatty acid or ester - using chromium, molybdenum or tungsten salt and tin cpd. as catalyst, e.g. for lubricant prodn. |
| 07/30/1992 | DE4102500A1 Verfahren zur herstellung verzweigter fettstoffe Process for the preparation of branched fatty substances |
| 07/30/1992 | DE4101879A1 Acrylic acid recovery from distn. residue by cracking and distn. - with side discharge of higher boiling liquid to increase purity by economical method |
| 07/29/1992 | WO1992012954A1 Method for purification of carboxylic acids and anhydrides |
| 07/29/1992 | EP0496562A1 Process for producing carboxylated compound |
| 07/29/1992 | EP0496362A2 Process for preparing malonic anhydride |
| 07/29/1992 | EP0496264A2 Process for preparing 2,6-naphthalenedicarboxylic acid |
| 07/29/1992 | EP0464154A4 Alkylation of aromatics |
| 07/29/1992 | CN1063097A Process for purification of carboxylic acids |
| 07/29/1992 | CN1017592B Composition containing divalent manganesetion and method for preparing the same |
| 07/29/1992 | CA2098293A1 Method for purification of carboxylic acids and anhydrides |
| 07/28/1992 | US5134108 Hydrogenation catlaysts |
| 07/28/1992 | US5134106 Oxidation catalysts of oxides of vanadium and phosphorus formed by reaction of a vanadium compound with a phosphoryl halide, removal of solvent and adding a hydrocarbon |
| 07/28/1992 | CA1305725C Process for the preparation of zirconium carboxylate |
| 07/28/1992 | CA1305724C Calcium lactate-glycerol adduct, a process for its preparation and itsuse |
| 07/28/1992 | CA1305723C Acylation of aromatics |
| 07/28/1992 | CA1305722C Process for producing tetrafluorophthalic acid |
| 07/22/1992 | EP0495548A2 Process for the carbonylation of olefin |
| 07/22/1992 | EP0495547A2 Carbonylation of olefins |
| 07/22/1992 | EP0495544A1 Process for the synthesis of citraconimides |
| 07/22/1992 | EP0495504A2 Process for production of methacrylic acid by catalytic oxidation of isobutane |
| 07/22/1992 | EP0495426A2 Preparation of 3,5-dichlorophthalic acid and 3,5-dichlorophthalic anhydride |
| 07/22/1992 | EP0495425A2 Preparation of diphenyl ether |
| 07/22/1992 | CA2059698A1 Process for the production of malonic acid anhydride |
| 07/21/1992 | US5132456 Sorption of carboxylic acid from carboxylic salt solutions at PHS close to or above the pKa of the acid, with regeneration with an aqueous solution of ammonia or low-molecular-weight alkylamine |
| 07/21/1992 | US5132452 Method for preparation of gluconic acid by catalytic oxidation of glucose |
| 07/21/1992 | US5132450 Oxidation of m-xylene, cobalt-manganese-bromine catalyst |
| 07/21/1992 | US5132449 Method for the catalytic vapor phase oxydehydrogenation of isobutyric acid |
| 07/21/1992 | CA1305486C Quaternary ammonium salts used as phase transfer catalyst |
| 07/17/1992 | CA2054073A1 Preparation of 3,5-dichlorophthalic acid and 3,5-dichlorophthalic anhydride |
| 07/15/1992 | EP0494527A1 Process for purification of carboxylic acids |
| 07/15/1992 | EP0494440A2 Continuous process for preparing isobutyric acid by Koch's synthesis |