| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
|---|
| 06/22/1999 | US5914347 By adding to a hydroxyalkyl cellulose, evaporating the solution or dispersion to dryness under an inert atmosphere to prepare a powder; imparts oxidation resistance |
| 06/22/1999 | CA2093749C Process for preparing ethylidene diacetate using iodine catalysts |
| 06/17/1999 | WO1999029652A1 Process for preparing purified carboxylic acids |
| 06/17/1999 | WO1999029651A1 Sodium (s)-2-(6-methoxy-2-naphthyl)-propionate monohydrate |
| 06/17/1999 | WO1999029650A1 Preparation of high purity sodium (s)-2-(6-methoxy-2-naphthyl)propionate |
| 06/17/1999 | WO1999029649A1 Process for the manufacture of 2,6-naphthalenedicarboxylic acid |
| 06/17/1999 | WO1999029648A2 Method for producing chlorocarboxylic acid chlorides |
| 06/17/1999 | WO1999029414A1 Process for cooling hot gasses |
| 06/17/1999 | DE19753817A1 Production of acrolein and acrylic acid by catalytic oxidation of propane |
| 06/16/1999 | EP0922693A1 Process for the preparation of 3-chloro-4-fluorobenzoyl chloride |
| 06/16/1999 | EP0922024A2 Method of preparing an alkaline earth metal tallate |
| 06/16/1999 | EP0921856A1 Catalyst recovery |
| 06/16/1999 | EP0921851A1 Mixing device for liquids |
| 06/16/1999 | EP0902787A4 A catalyzed process for producing metal carboxylates for use as animal feed supplements |
| 06/16/1999 | CN1219954A Process for making solid compositions containing quaternary ester ammonium compounds and fatty acids |
| 06/16/1999 | CN1219589A Process of producing citric acid and/or citrates |
| 06/16/1999 | CN1219530A Method for refining long-chain bibasic acid |
| 06/16/1999 | CN1219529A Production method for calcium acetate |
| 06/15/1999 | US5912371 Chlorinating unsaturated fatty acid silylation product; haloacylation |
| 06/15/1999 | CA2093752C Integrated process for oxygenated acetyl compounds from synthesis gas via dimethyl ether |
| 06/15/1999 | CA2093747C Process for converting dimethyl ether to ethylidene diacetate |
| 06/15/1999 | CA2017425C Method for producing ibuprofen |
| 06/10/1999 | WO1999028287A1 Method for preparing oxy-diphthalic anhydrides |
| 06/10/1999 | WO1999028286A1 Process to separate rhodium from an organic mixture |
| 06/10/1999 | WO1999028285A1 Method of recovery of terephthalic acid and ethylene glycol from poly/ethylene terephthalate/wastes |
| 06/10/1999 | WO1999000512B1 Method for conversion of biomass to chemicals and fuels |
| 06/10/1999 | DE19754155A1 Verfahren zum Kühlen von heißen Gasen A method for cooling hot gases |
| 06/10/1999 | DE19753773A1 Verfahren zur Herstellung von Chlorcarbonsäurechloriden A process for preparing chlorocarbonyl chlorides |
| 06/10/1999 | CA2312328A1 Process to separate rhodium from an organic mixture |
| 06/09/1999 | EP0921113A1 Process for crystallizing methacrylic acid |
| 06/09/1999 | EP0921112A1 Process for concentrating aqueous methacrylic acid solutions |
| 06/09/1999 | EP0920408A1 Method for purifying acrylic acid and methacrylic acid |
| 06/09/1999 | EP0920300A1 Vegetable oil compositions |
| 06/09/1999 | EP0775103B1 Retinoic acid x-receptor ligands |
| 06/09/1999 | EP0736001B1 Aryl acetic acid derivatives and their use as fungicides |
| 06/09/1999 | EP0580818B2 Process for decomposing alpha,beta-unsaturated carbonyl compounds in refining acetic anhydride and/or acetic acid |
| 06/09/1999 | CN1219162A Azeotropic distillation process |
| 06/09/1999 | CN1219161A Process for selective production of acetic acid |
| 06/09/1999 | CN1218803A Halogenating agent |
| 06/09/1999 | CN1218793A Process for producing bromo-undecylic acid |
| 06/09/1999 | CN1043568C Process for preparation of iridium-based solution, solution obtained and use of the latter as catalyst |
| 06/08/1999 | US5910608 Catalyst consisting of a hollow cylindrical carrier having a catalytically active oxide material applied to the outer surface of the carrier, and process for using said catalyst |
| 06/08/1999 | US5910607 Process for producing acrylic acid |
| 06/08/1999 | US5910606 Process for making α,β-unsaturated carboxylic acids |
| 06/08/1999 | US5910605 Process for the preparation of 3-hydroxy-2-methylbenzoic acid and 3-acetoxy-2-methylbenzoic |
| 06/03/1999 | WO1999026912A1 Process for producing methacrolein and methacrylic acid |
| 06/03/1999 | WO1999026911A1 Condensation method |
| 06/02/1999 | EP0919535A1 Process for the preparation of calcium tartrate from an alkaline solution resulting from the descaling of a wine tun |
| 06/02/1999 | EP0919534A1 Process to separate rhodium from an organic mixture |
| 06/02/1999 | EP0918741A1 Method for purifying adipic acid by crystallization |
| 06/02/1999 | EP0852576A4 Method for preparation of carboxylic acids |
| 06/02/1999 | EP0783478B1 Basic zirconium carboxylates |
| 06/02/1999 | CN1218476A Preparation of multidentate phosphite compound |
| 06/02/1999 | CN1218452A Synthesis of solid, powdery rare earth carboxylates by precipitation method |
| 06/02/1999 | CN1043529C Carbonylation of epoxides |
| 06/02/1999 | CN1043525C Process for synthesis of acetic acid by methanol carbony lation under lower pressure in liquid phase |
| 06/01/1999 | US5908803 Process for isolation of a catalyst containing palladium |
| 06/01/1999 | US5908589 Methods for separating catalyst from oxidation mixtures containing dibasic acids |
| 06/01/1999 | CA1340574C Method and compositions providing enhanced chemiluminescence from 1,2-dioxetanes |
| 06/01/1999 | CA1340571C Process for production of aromatic hydroxycarboxylic acid |
| 05/27/1999 | WO1999025681A1 Method for preparing bromomethyl-biphenyl derivatives |
| 05/27/1999 | WO1999025676A1 Apparatus and method for recovering sorbic acid |
| 05/27/1999 | WO1999025672A1 Method for producing 1,6-hexanediol and 6-hydroxycaproic acid or their esters |
| 05/27/1999 | WO1999025461A1 Method and device for global warming prevention |
| 05/27/1999 | DE19752199A1 Condensation process for the separation of components of a gas mixture |
| 05/26/1999 | EP0917909A1 Preparation process of a coated catalyst for the synthesis of maleic anhydride in the gas phase |
| 05/26/1999 | EP0873294A4 Production of levulinic acid from carbohydrate-containing materials |
| 05/26/1999 | CN1217653A Functionalized nanotubes |
| 05/26/1999 | CN1217317A Fungus-killing compound of 2-methoxydiphenylketones |
| 05/25/1999 | US5907060 Process for preparing 3.3-dimethylbutyric acid |
| 05/25/1999 | US5907056 Improving the selectivity and yield of acetic acid in the low temperature oxidation of ethane with oxygen-containing gas inpresence of an oxide catalyst |
| 05/25/1999 | CA2116502C Process for the hydroxycarbonylation of lactones |
| 05/25/1999 | CA2116501C Process for the carbonylation of allyl butenols and their esters |
| 05/20/1999 | WO1999024139A1 Separation process |
| 05/20/1999 | WO1999010527A3 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles |
| 05/20/1999 | DE19853064A1 Process for production of acrylic acid |
| 05/20/1999 | DE19751046A1 Production of acrolein and acrylic acid by catalytic oxidation of propane |
| 05/20/1999 | DE19750532A1 Process for production of1,6-hexanediol and 6-hydroxycaproic acid |
| 05/19/1999 | EP0916641A1 Preparation of acid chlorides |
| 05/19/1999 | EP0915822A1 Process for preparing perfluoro-[2-(n-propoxyl)-propionyl]fluoride |
| 05/19/1999 | EP0915821A1 Selective preparation process of acetic acid and catalysts therefor |
| 05/19/1999 | EP0915728A1 Device for phase separation |
| 05/19/1999 | EP0804401B1 Process for the preparation of 3-phenylpropanal |
| 05/19/1999 | EP0750603B1 A process and extractant composition for extracting acids |
| 05/19/1999 | CN1217029A Prepn. of microbial polyunsaturated fatty acid contg. oil from pasteurised biomass |
| 05/19/1999 | CN1216975A Process for purifying crude acrylic acid by crystallization |
| 05/19/1999 | CN1216974A Method for preparing acetic acid and/or methyl acetate by isomerisation and carbonylation |
| 05/18/1999 | US5905169 Process for producing polyfluoroacyl compositions |
| 05/18/1999 | US5905168 Process for treating a material comprising a polymer by hydrolysis |
| 05/18/1999 | US5905052 Thermal decompositon of vanadium phosphate esters |
| 05/14/1999 | WO1999023055A1 Method and apparatus for preparing purified terephthalic acid |
| 05/14/1999 | WO1999022857A1 A method of performing a chemical reaction |
| 05/14/1999 | WO1999016738B1 Recovery of 2,6-naphthalene dicarboxylic acid from polyesters |
| 05/14/1999 | WO1999007692A3 New epothilone derivatives, method for producing same and their pharmaceutical use |
| 05/14/1999 | CA2304550A1 A method of performing a chemical reaction |
| 05/12/1999 | EP0915080A1 Process for preparing optically active amines and optically active carboxylic acids, and intermediates for preparation |
| 05/12/1999 | EP0914314A1 Process for production of aromatic tricarboxylic acids |
| 05/12/1999 | EP0914195A1 Method for separating a catalyst by membrane electrodialysis |
| 05/12/1999 | EP0737103B1 Process for producing an iridium solution and use of same as catalyst. |
| 05/12/1999 | EP0686139B1 Alkaline calcium/zinc mixed soaps |