| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 02/12/1998 | DE19631645A1 Verfahren zur Herstellung von Acrylsäure A process for the production of acrylic acid |
| 02/12/1998 | DE19631628A1 Mischvorrichtung für Flüssigkeiten Mixing device for liquids |
| 02/12/1998 | DE19631406A1 Highly fluorinated carboxylic acid recovery from waste gas without scale formation in scrubber |
| 02/12/1998 | CA2262702A1 Recovery of highly fluorinated carboxylic acids from the gaseous phase |
| 02/12/1998 | CA2262594A1 Process for the separation of acrylic acid |
| 02/12/1998 | CA2261631A1 Mixing device for liquids |
| 02/12/1998 | CA2261617A1 Device for phase separation |
| 02/12/1998 | CA2232185A1 Integrated process for the production of vinyl acetate and/or acetic acid |
| 02/11/1998 | EP0783477A4 A process for producing metal carboxylates for use as animal feed supplements |
| 02/11/1998 | CN1173170A Matrix metalloprotease inhibitors |
| 02/11/1998 | CN1172796A Praparation technology of threonates |
| 02/11/1998 | CN1172643A Preparation of salts of pharmaceutical active substances which have acidic groups |
| 02/10/1998 | US5717039 Functionalization of polymers based on Koch chemistry and derivatives thereof |
| 02/10/1998 | US5716815 Method for preparing dimethylcarboxylic acid compounds |
| 02/05/1998 | WO1998004511A1 Process for preparing perfluoro-[2-(n-propoxyl)-propionyl]fluoride |
| 02/05/1998 | WO1998004331A1 Process for the industrial recovery of oleanolic and maslinic acids contained in the olive milling subproducts |
| 02/05/1998 | DE19632723A1 Verfahren zur Herstellung von Perfluor-[2-n-propoxi)-propionyl]fluorid Process for the preparation of perfluoro- [2-n-propoxy) propionyl] fluoride |
| 02/05/1998 | DE19630832A1 Verfahren zur selektiven Herstellung von Essigsäure Process for the selective preparation of acetic acid |
| 02/05/1998 | CA2261653A1 Process for preparing perfluoro-[2-(n-propoxyl)-propionyl]fluoride |
| 02/05/1998 | CA2232692A1 Process for the industrial recovery of oleanolic and maslinic acids contained in the olive milling subproducts |
| 02/04/1998 | EP0822177A1 Process for producing rhein and diacerhein |
| 02/04/1998 | EP0822176A2 Process for producing highly pure terephthalic acid by use of dispersion medium replacement apparatus |
| 02/04/1998 | EP0821662A1 Recovery of acetic acid from dilute aqueous streams formed during a carbonylation process |
| 02/04/1998 | EP0741684B1 Process for preparing carboxylic acids by carbonylation of ethers and thioethers |
| 02/04/1998 | EP0664783B1 Enantiomeric resolution |
| 02/04/1998 | CN1172100A Method for producing full-soluble calcium of organic acid using bird's egg shell |
| 02/03/1998 | US5714623 Process for the preparation of carboxylic acids and esters thereof by oxidative cleavage of unsaturated fatty acids and esters thereof |
| 01/29/1998 | WO1998003459A1 The method of obtaining terephtalic acid and ethylene glycol, particularly from poly/ethyleneterephtalate/wastes and the plant for realisation of this method |
| 01/28/1998 | EP0820979A1 Process for the production of arabinitol |
| 01/28/1998 | EP0703892B1 Process for producing an omega-functionalized aliphatic carboxylic acid and intermediate products of said process |
| 01/28/1998 | CN1171774A Reactive distillation process and equipment for production of acetic acid and methanol from methyl acetate hydrolysis |
| 01/28/1998 | CN1171773A Method for preparing carboxylic acids by cartonylation in presence of rhodium |
| 01/28/1998 | CN1171391A Process for preparation of acetic acid |
| 01/28/1998 | CN1037174C Acetic acid recovery |
| 01/27/1998 | US5712412 Replacing original dispersion medium, gravity settling, columns |
| 01/27/1998 | US5712409 Naphthyl and ether chain-containing carboxyl derivatives |
| 01/27/1998 | US5712226 Optically active D-pyridyloxy phenoxy propionate herbicides |
| 01/27/1998 | US5712131 Recovery of organic acid from an impure process stream by addition of strong acid or salt thereof |
| 01/22/1998 | WO1998002237A1 Production of powders |
| 01/22/1998 | WO1997036996A3 Process for the preparation of a granular microbial biomass and isolation of valuable compounds therefrom |
| 01/22/1998 | DE19632643C1 Katalysierte Kopplung von Arylmagnesiumhalogeniden und Bromarylcarbonsäureverbindungen zur Herstellung von Biphenylcarbonsäuren Catalyzed coupling of aryl magnesium halides and Bromarylcarbonsäureverbindungen for the production of biphenyl carboxylic acids |
| 01/22/1998 | DE19629372A1 Malonic acid or salt preparation |
| 01/22/1998 | DE19629042A1 Verfahren zur Gewinnung von Terephthalsäure und Äthylenglykol, insbesondere aus Polyäthylenterephthalat-Abfällen und Vorrichtung zur Durchführung des Verfahrens A process for recovering terephthalic acid and ethylene glycol, particularly from polyethylene terephthalate waste, and apparatus for carrying out the method |
| 01/21/1998 | EP0819670A2 Process for preparing 3-hydroxypropionic acid or its salt |
| 01/21/1998 | EP0819110A1 Method for oxidising hydrocarbons, alcohols or ketones using heterogeneous catalysis |
| 01/21/1998 | EP0819098A1 Process for the production of cesium compounds |
| 01/21/1998 | CN1171050A 2,2-dichloroalkane carboxylic acids, process for preparing the same, medicament containing the same and use for treating insulin resistance |
| 01/21/1998 | CN1170709A Method for recovering useful materials from saponified waste lye |
| 01/21/1998 | CN1170628A 改进的反应器系统 Improved reactor system |
| 01/20/1998 | US5710339 Bisphosphines as catalysts for asymmetric reactions |
| 01/20/1998 | US5710329 Antifoulant for acrylic acid purification |
| 01/20/1998 | US5710328 Preparation of α, β-unsaturated carboxylic acids and anhydrides |
| 01/20/1998 | US5710326 Catalyst regeneration process |
| 01/20/1998 | US5710325 Manufacture of adipic acid |
| 01/20/1998 | US5710323 Process for producing monocarboxylic and/or dicarboxylic acids |
| 01/20/1998 | US5710317 Preparation of difluoroacetic acid fluoride and difluoroacetic acid esters |
| 01/20/1998 | US5710306 Reacting a phosphphorochlorodite with hydoxy compound containing fused ring and hydrohalogenation |
| 01/20/1998 | US5710277 Pyschotic |
| 01/20/1998 | US5710224 Catalytic polymerization of ethylene using fluorene indenyl ethane zirconium dichloride with metallocene |
| 01/15/1998 | WO1998001415A1 Method for purifying acrylic acid and methacrylic acid |
| 01/15/1998 | WO1998001414A1 Process for purifying crude acrylic acid by crystallization |
| 01/15/1998 | WO1998001413A1 A process for the recovery of dicarboxylic acid |
| 01/15/1998 | WO1998001411A2 Method of separating (meth)acrylic acid |
| 01/15/1998 | DE19725802A1 Preparation of 3,3,3-tri:fluoro-2-hydroxy-2-methyl propionic acid, |
| 01/15/1998 | DE19628272A1 Carbonylation of at least 2C cpds. or their reactive derivs. |
| 01/15/1998 | DE19627850A1 Verfahren zur Herstellung von Acrylsäure und Methacrylsäure A process for the production of acrylic acid and methacrylic acid |
| 01/15/1998 | DE19627847A1 Verfahren zur Herstellung von Acrylsäure A process for the production of acrylic acid |
| 01/15/1998 | DE19627679A1 Verfahren zur Reinigung von Roh-Acrylsäure durch Kristallisation A process for purifying crude acrylic acid by crystallization |
| 01/15/1998 | CA2259994A1 Method of separating (meth)acrylic acid |
| 01/15/1998 | CA2259945A1 Method for purifying acrylic acid and methacrylic acid |
| 01/15/1998 | CA2250806A1 Process for purifying crude acrylic acid by crystallization |
| 01/14/1998 | EP0818435A1 Process for the decarboxylation of aromatic carboxylic acids |
| 01/14/1998 | EP0818434A2 Process for the production of high-purity isophthalic acid |
| 01/14/1998 | EP0818433A2 Process for producing aromatic carboxylic acids |
| 01/14/1998 | EP0664785B1 Method for refining acetic anhydride |
| 01/14/1998 | CN1170400A Improved process for purification of aromatic polycarboxylic acids |
| 01/14/1998 | CN1170393A Manufacture of carbonyl fluoride |
| 01/14/1998 | CN1169978A Process for isolation of 2-keto-L-gulonic acid |
| 01/13/1998 | US5707917 Catalyst for the selective oxidation of hydrocarbons |
| 01/13/1998 | US5707679 Metal propionates for use as animal feed supplements |
| 01/13/1998 | US5707559 Chemiluminescent 1,2-dioxetane compounds |
| 01/12/1998 | CA2210154A1 Process for producing aromatic carboxylic acids |
| 01/07/1998 | EP0816533A2 Process for preparing butanetetracarboxylic acid |
| 01/07/1998 | EP0816328A2 Process for the manufacture of acetonylbenzamides |
| 01/07/1998 | EP0815935A2 Process for reacting a liquid with a gas |
| 01/07/1998 | EP0815098A1 Process and apparatus for the preparation and recovery of maleic anhydride |
| 01/07/1998 | EP0695286B1 Method of preparing caesium salts from caesium aluminium alum |
| 01/07/1998 | EP0664781B1 Enantiomeric resolution |
| 01/07/1998 | CN1169711A Crystallization of adipic acid |
| 01/07/1998 | CN1169418A Manufacture of polyene esters and acids |
| 01/06/1998 | US5705688 Process for the purification of acrylic acid obtained by catalytic oxidation of propylene |
| 01/06/1998 | US5705685 Oxidation of alkanes with oxidizer, heteropolyacid or polyoxoanion and atoms of molybdenum, tungsten or vanadium and frames of zinc or transition metal |
| 01/06/1998 | US5705684 Preparation of acrolein, acrylic acid or a mixture thereof from propane |
| 01/06/1998 | US5705683 Carbonylation of olefins |
| 01/06/1998 | US5705682 Process for producing highly pure terephthalic acid |
| 01/06/1998 | CA2061559C Cyclopentadiene type compounds and method for making |
| 01/02/1998 | DE19727042A1 New fluorinated aromatic vinyl ether compounds for preparing fluoroelastomers |
| 01/02/1998 | DE19624674A1 Verfahren zur Entsorgung von bei der Acrylsäure- oder Methacrylsäure-Herstellung anfallenden Nebenkomponenten A process for the disposal of produced during the manufacture of acrylic or methacrylic secondary components |
| 12/31/1997 | WO1997049485A1 Methods and devices for oxidizing a hydrocarbon to form an acid |
| 12/31/1997 | WO1997037032A3 Preparation of microbial polyunsaturated fatty acid containing oil from pasteurised biomass |