| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 04/03/2002 | CN1342637A Integrated process and system for recovering liluted acetic acid |
| 04/03/2002 | CN1342636A Separation method for equatic mixture of formic acid and acetic acid |
| 04/03/2002 | CN1082041C Process for preparing chloracetic acid by continuous chlorination and its equipment |
| 04/02/2002 | US6365773 Process for producing fluoroaromatic carboxylates |
| 04/02/2002 | US6365769 Perfluoroalkyl halides and derivatives |
| 04/02/2002 | US6365768 Interleukin-1 and tumor necrosis factors-α modulators, syntheses of said modulators and methods of using modulators |
| 04/02/2002 | CA2043152C Production of citric acid |
| 03/28/2002 | WO2002024690A2 Efficient process for the preparation of a factor xa inhibitor |
| 03/28/2002 | WO2002024629A1 Zwitterionic tachykinin receptor antagonists |
| 03/28/2002 | WO2002024623A2 Novel alkanoic acid derivatives |
| 03/28/2002 | WO2002024622A1 Method for producing ketocarboxylic acid derivatives |
| 03/28/2002 | WO2002024620A2 Method for producing a multi metal oxide catalyst, method for producing unsaturated aldehydes and/or carboxylic acids and band calcination device |
| 03/28/2002 | WO2002024328A1 Catalyst for methacrylic acid production, coated catalyst, and process for producing the same |
| 03/28/2002 | WO2002024327A1 Method for producing multiple-phase multi-metal oxide materials |
| 03/28/2002 | US20020038058 Precipitating metal salts of volatile fatty acids (VFAs) from fermentation liquor; recovering and drying precipitated metal salts of VFAs; mixing with heat transfer agent in an evacuated container; thermal decomposition to form ketone vapor |
| 03/28/2002 | US20020038052 Mixing metal compounds, at least one of which is an oxygen containing compound and solvent to form solution; removing solvent from solution to obtain catalyst precursor; calcining in non-oxidizing atmosphere to form catalyst |
| 03/28/2002 | US20020038051 As catalyst for dehydrogenating alcohols |
| 03/28/2002 | US20020038039 Catalytic gas-phase oxidation of a 2,4,5- trialkylbenzaldehyde with a molecular oxygen-containing gas to produce pyromellitic anhydride |
| 03/28/2002 | US20020037938 Using rhodium-containing supported catalyst which also contains zirconium, copper, cobalt, nickel, manganese, iron, ruthenium, molybdenum, alkali metals or alkaline earth metals |
| 03/28/2002 | US20020037488 Method for starting up reactor |
| 03/28/2002 | US20020037360 Retardation of discolouration of dicarboxylic acids |
| 03/28/2002 | DE10046072A1 Katalysator-Precursor für die Herstellung von Maleinsäureanhydrid Catalyst precursor for preparing maleic anhydride |
| 03/28/2002 | DE10042746A1 Verfahren und Vorrichtung zum Durchführen von Reaktionen in einem Reaktor mit spaltförmigen Reaktionsräumen Method and apparatus for carrying out reactions in a reactor with slot-shaped reaction spaces |
| 03/28/2002 | DE10042535A1 Verfahren zur verbesserten Herstellung und Isolierung von trans-Dihydroxy-Cyclohexadien-Carbonsäuren und/oder deren Folgeprodukte sowie ein dazu geeigneter genetisch veränderter Organismus Method for improving the production and isolation of trans-dihydroxy-cyclohexadiene-carboxylic acids and / or their derivatives, and to a suitable genetically modified organism |
| 03/28/2002 | CA2424576A1 Efficient process for the preparation of a factor xa inhibitor |
| 03/28/2002 | CA2423356A1 Zwitterionic tachykinin receptor antagonists |
| 03/27/2002 | EP1190764A1 Manufacturing of carbonxylic acid fluorides |
| 03/27/2002 | EP1189885A1 Process for the synthesis of a-nor-seco compounds with sterane skeleton |
| 03/27/2002 | EP1189861A1 Method of purifying and producing acrylic acid or methacrylic acid |
| 03/27/2002 | EP1093467B1 Process for selective oxidation of primary alcohols |
| 03/27/2002 | EP1036055B1 Method for producing chlorocarboxylic acid chlorides |
| 03/27/2002 | EP1030827B1 Method for producing 1,6-hexanediol and 6-hydroxycaproic acid or their esters |
| 03/27/2002 | EP1015408B1 Method for producing cyclopentanone and cyclopentene-1-carboxylic acid and their esters |
| 03/27/2002 | EP0873294B1 Production of levulinic acid from carbohydrate-containing materials |
| 03/27/2002 | CN1342193A Method for obtaining oil that rich in hydroxyoctadecadienoic fatty acids (hode) or esters thereof from mixture containing linoleic acid or esters thereof |
| 03/27/2002 | CN1081628C Process for mfg. composition containing longer chain alkyl sulphate surface active agent mixture |
| 03/27/2002 | CN1081627C Process for synthesizing benzoic acids |
| 03/27/2002 | CN1081619C Method for preparing acetic acid and/or methyl acetate by isomerisation and carbonylation |
| 03/27/2002 | CN1081486C Multimetal oxides |
| 03/26/2002 | US6362368 Oxidative ozonolysis of mono-unsaturated fatty acids; recrystalization using carboxylic acid of medium chain length as solvent; purity |
| 03/26/2002 | US6362367 High purity; by liquid phase oxidation |
| 03/26/2002 | US6362366 Manufacturing and process control methods |
| 03/26/2002 | US6362365 Defluorination of the tetrafuoroisophalate derivative using organo alkyl metallic compound to alkylate at the 6 position and then decarboxylation |
| 03/26/2002 | US6362345 Method for producing phthalic anhydride by means of catalytic vapor-phase oxidation of o-xylol/naphthalene mixtures |
| 03/26/2002 | US6362128 Slurrying of catalyst supports, silica sol, polysilicic acid and vanadyl phosphate oxide catalyst precursor; spray drying to form porous microsphere and calcining |
| 03/21/2002 | WO2002022546A1 METHOD FOR THE PURIFICATION OF AN α-HYDROXY ON INDUSTRIAL SCALE_______________________________________________________ |
| 03/21/2002 | WO2002022545A1 METHOD FOR THE PURIFICATION OF α-HYDROXI ON INDUSTRIAL SCALE _______________________________________________________ |
| 03/21/2002 | WO2002022544A1 Method for the purification of α-hydroxy acids on an industrial scale |
| 03/21/2002 | WO2002022543A1 Process for preparing optically active carboxylic acid derivative |
| 03/21/2002 | WO2002022257A1 Catalyst precursor for producing maleic acid anhydride |
| 03/21/2002 | WO2001085649A3 Synthesis of 2-halobenzyl alkanoic acid |
| 03/21/2002 | WO2001083103A3 Catalysts for the oxidation of ethane to acetic acid and ethylene, methods of making and using the same |
| 03/21/2002 | WO2001062700A3 Method for adjusting concentration of starting materials in gas phase contact reaction process, method for controlling reaction process by the adjusting method, and process for producing lower fatty acid or lower fatty acid ester using the control method |
| 03/21/2002 | US20020035291 Process for converting cellulosic material into liquid hydrocarbons |
| 03/21/2002 | US20020035290 Process for preparing malonate derivatives or beta -keto esters from epoxide derivatives |
| 03/21/2002 | US20020035281 Amidation |
| 03/21/2002 | US20020035271 Process for preparing oprtically active trimethyllactic acid and its ester |
| 03/21/2002 | US20020034780 Novel human protein kinases and uses therefor |
| 03/20/2002 | EP1188738A1 Process for producing sorbic acid |
| 03/20/2002 | EP1188735A1 Process for producing carbonyl or hydroxy compound |
| 03/20/2002 | EP1187805A1 Process for preparing r-(-)-carnitine from s-(-)-chlorosuccinic acid or from a derivative thereof |
| 03/20/2002 | EP1187801A1 A method of preparing cyclohexanecaraboxylic acid using [2+4] diels-alder reaction |
| 03/20/2002 | EP1187800A1 Improved process for the preparation of 3,4-dihydroxybutanoic acid and salts and lactones derived therefrom |
| 03/20/2002 | EP0900180B1 Process for the preparation of fluoro compounds from the corresponding amines |
| 03/20/2002 | EP0781264B1 Process for recovering citric acid |
| 03/20/2002 | CN1341092A Process for producing derivatives of biphenyl-2-carboxylic acid |
| 03/20/2002 | CN1341091A Process for preparation of (2R)-2-propyloctanoic acid |
| 03/19/2002 | US6359179 Using carbon monoxide |
| 03/19/2002 | US6359173 Process control; continuous processing |
| 03/19/2002 | US6359172 Condensation glyoxylic acid with phenol |
| 03/19/2002 | CA2219601C Method for producing conjugated linoleic acid |
| 03/14/2002 | WO2002020454A1 Process for producing (meth)acrylic anhydride and process for producing (meth)acrylic ester |
| 03/14/2002 | WO2002020453A1 Methods for crystallization of hydroxycarboxylic acids |
| 03/14/2002 | WO2002020445A1 Process for the preparation of fluorinated unsaturated compounds and process for the production of fluoropolymers |
| 03/14/2002 | WO2002005955A8 Method for producing addition products of ethylenic unsaturated compounds by means of catalysts containing bisphospholyl metallocenes |
| 03/14/2002 | WO2001058852A3 (r)-2-aryl-propionamides, useful in the inhibition of il-8-induced chemiotaxis of neutrophils |
| 03/14/2002 | WO2001055075A3 Process for the recovery of crude terephthalic acid (cta) |
| 03/14/2002 | WO2001051447A3 Co-production of carboxylic acids and/or their esters |
| 03/14/2002 | WO2001051446A3 Co-production of carboxylic acids and/or their esters |
| 03/14/2002 | WO2001051443A3 Method for increasing oxidation reactor production capacity |
| 03/14/2002 | WO2001051442A3 Improved process for producing carboxylic acids |
| 03/14/2002 | WO2001037629A3 High surface microporous materials which are active in oxidation reactions. tiq-6 and metiq-6 |
| 03/14/2002 | US20020032351 Process for the preparation of chiral isofluoroenes |
| 03/14/2002 | US20020032336 Phenyl ketone derivative reacted with succinic anhydride andpotassium t-butoxide, diketone product reacted with hydrazine derivative to cause cyclization, esterification with ethanol and reacting with n-methylhydroxylamine hydrochloride |
| 03/14/2002 | DE10041543A1 Novel acids and derivatives with terminal dioxo-ene structures, useful e.g. in production of polymers or pharmaceuticals, are obtained by photooxygenation ring-opening of furans, followed by reduction |
| 03/13/2002 | EP1185600A1 A process for concentrating azelaic acid |
| 03/13/2002 | EP1185498A2 Synthesis of optically active cyclohexylphenylglycolic acid and its esters |
| 03/13/2002 | EP1185497A1 Hydrogenation of phthalic acids |
| 03/13/2002 | EP1185496A1 Method of making hydrogenated acids |
| 03/13/2002 | EP1185495A1 Catalyst for production of acetic acid or acetic acid and ethyl acetate, process for its production and process for production of acetic acid or acetic acid and ethyl acetate using it |
| 03/13/2002 | EP1185494A2 Method of gas phase catalytic oxidation to give maleic acid anhydride |
| 03/13/2002 | EP0977729B1 3-cyano-2,4,5-trifluoro-benzoyl fluoride and intermediate products for the production thereof |
| 03/13/2002 | CN1339429A Process for preparing aromatic carboxylic acid |
| 03/13/2002 | CN1080715C Process for preparing alkaline alkyl calcium salicylate |
| 03/12/2002 | US6355837 Titanium, zirconium, hafnium halide with iridium as catalyst |
| 03/12/2002 | US6355835 Oxidation of xylene isomers, flashing and recrystallization |
| 03/12/2002 | US6355834 Oxidation of aromatic hydrocarbon with alkyl groups, isomerization to form diacids |
| 03/12/2002 | US6355595 Group 5 metal promoted iridium carbonylation catalyst |
| 03/07/2002 | WO2002018611A2 Method for the improved production and isolation of trans-dihydroxycyclohexadiene carboxylic acids and/or derivatives thereof and a genetically modified organism suitable for the above |
| 03/07/2002 | WO2002018328A1 Process for reacting carboxylic acids and esters |