| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 07/30/2008 | CN100406423C Method for the measurement of the pressure in a gas phase from rectification and/or absorption columns comprising (meth)acrylic acid, the esters and/or nitriles thereof |
| 07/29/2008 | US7405331 High-purity (fluoroalkyl)benzene derivative and process for producing the same |
| 07/29/2008 | US7405068 Glucose tolerant C2 carbon source-independent (GCSI) yeast strain for use as bioreactor in production of pyruvic acid |
| 07/29/2008 | CA2476034C Process for the recovery of a carbonylation product |
| 07/29/2008 | CA2386852C A process for recovery of acid |
| 07/29/2008 | CA2380625C Process for producing pure terephthalic acid with improved recovery of precursors, solvent and methyl acetate |
| 07/29/2008 | CA2323315C Process for the preparation of piperidinylaminomethyl trifluoromethyl cyclic ether compounds |
| 07/29/2008 | CA2220223C High purity carnosic acid from rosemary and sage extracts by ph-controlled precipitation |
| 07/25/2008 | CA2576317A1 Method of obtaining inorganic salt and acetate salt from cellulosic biomass |
| 07/24/2008 | WO2008089398A1 Selective oxidation of alkanes and/or alkenes to valuable oxygenates |
| 07/24/2008 | WO2008088234A1 Method for the conversion, under mild conditions and in aqueous medium, of gaseous and liquid alkanes into carboxylic acids |
| 07/24/2008 | WO2008087116A1 Method for producing catalyst moulded bodies whose active mass is a multi-element oxide |
| 07/24/2008 | WO2008086717A1 Process for separating hydroxyl benzoic acid isomers by using hydrotalcite |
| 07/24/2008 | WO2008086589A1 Process for separating saturated and unsaturated fatty acids |
| 07/24/2008 | WO2008070365A3 Oxidation reaction for producing aromatic carboxylic acids |
| 07/24/2008 | US20080177106 subjecting isobutane or isobutylene or a mixture thereof to a vapor phase catalytic oxidation in the presence of air or oxygen; producing at least one of methacrolein and methacrylic acid |
| 07/24/2008 | US20080177105 finely divided precursor mixture with addition of graphite having a specific particle size is shaped to the desired geometry and then treated thermally |
| 07/24/2008 | US20080177101 Synthesis of isotopically labeled alpha-keto acids and esters |
| 07/24/2008 | CA2675963A1 Method for the conversion, under mild conditions and in aqueous medium, of gaseous and liquid alkanes into carboxylic acids |
| 07/23/2008 | EP1947079A1 Process for producing glycolic acid |
| 07/23/2008 | EP1945601A1 Novel process for the preparation of acid chlorides |
| 07/23/2008 | EP1945600A2 Method for carrying out in a stable manner a process for continuously producing acrolein or acrylic acid or the mixture thereof from propane |
| 07/23/2008 | EP1945353A1 Shaped catalyst body for partial oxidation reactions |
| 07/23/2008 | EP1565421B1 A method for preparing indan-1,3-dicarboxylic acid |
| 07/23/2008 | CN101225043A Separation purifying technique for high-purity shikimic acid |
| 07/23/2008 | CN101225042A Yacon diterpene acid compounds, medicine composition, preparation method and use in preparation of medicine treating diabetes mellitus |
| 07/23/2008 | CN101225041A Method for synthesizing lactic acid by using glycerol |
| 07/23/2008 | CN101225040A Method for extracting crocetin from gardenia |
| 07/23/2008 | CN101225039A Method for preparing acroleic acid by using glycerol as raw material |
| 07/23/2008 | CN101225038A Method for preparing acetic anhydride and acetic acid by multi-component carbonylation |
| 07/23/2008 | CN100404492C Process for the remove of undesired flavour and odour components from potassium lactate |
| 07/23/2008 | CN100404491C Preparation method of 2,4-dichlorin phenoxyacetic acid |
| 07/23/2008 | CN100404490C Method for making carboxylic acids |
| 07/23/2008 | CN100404133C Method of producing catalyst for synthesizing unsaturated aldehyde and unsaturated carboxylic acid, catalyst produced by this method, and method of synthesizing unsaturated aldehyde and unsaturated ca |
| 07/22/2008 | US7402694 from a mother liquor produced in the synthesis of carboxylic acid, typically terephthalic acid; evaporation to produce a vapor stream and a super concentrated purge slurry; filtering purge slurry to form filter cake and mother liquor; subjecting said mother liquor to evaporation; distillation |
| 07/22/2008 | CA2481246C Compounds that modulate ppar activity and methods for their preparation |
| 07/22/2008 | CA2358876C Phosphorus/vanadium maleic anhydride catalyst preparation |
| 07/17/2008 | WO2008085512A1 Methods for conversion of tyrosine to p-hydroxystyrene and p-hydroxycinnamic acid |
| 07/17/2008 | WO2008084062A1 New method for preparing unsaturated fatty hydroxy-acids |
| 07/17/2008 | WO2008084060A1 New method for preparing unsaturated fatty hydroxy-acids |
| 07/16/2008 | EP1943208A1 System and method for acetic acid dehydration |
| 07/16/2008 | EP1943207A1 Process for preparing octenoic acid derivatives |
| 07/16/2008 | CN101223132A Process for the preparation of sulfonamide derivatives |
| 07/16/2008 | CN101223125A Method for extracting lactic acid from aqueous suspensions |
| 07/16/2008 | CN101223124A Process for producing carboxylic acid |
| 07/16/2008 | CN101219990A Method for distillation of front cut fraction of trichloropyridine sodium alcoholate |
| 07/16/2008 | CN101219949A Process for producing abietic acid |
| 07/16/2008 | CN101219948A Method for producing high purity extractive (methyl) acrylic acid |
| 07/16/2008 | CN101219947A Method for gas-phase catalytic oxidation using a fixed bed reactor |
| 07/16/2008 | CN101219946A Method for recycling waste liquor of ammonium hexanedioic acid and recycling system thereof |
| 07/16/2008 | CN101219945A Technique for producing sodium formate with semiwater gas |
| 07/16/2008 | CN101219944A Method for producing lubricant detergents |
| 07/16/2008 | CN101219943A Method for purifying and using chloroethanoic acid tail gas |
| 07/16/2008 | CN100402483C Process of extracting cimitt acid |
| 07/16/2008 | CN100402482C Method for producing aromatic carboxylic acid |
| 07/16/2008 | CN100402481C Method and device for hydrolytically obtaining a carboxylic acid and alcohol from the corresponding carboxylic ester |
| 07/16/2008 | CN100402474C Process for producing carbonyl & hydroxy compound |
| 07/16/2008 | CN100402144C Method for preparing catalyst for refining of crude terephthalic acid |
| 07/16/2008 | CN100402044C Method for dual-frequency ultrasonic strengthening extraction of effective constituent from vegetable drug |
| 07/15/2008 | US7399883 Carbonylation of 3-pentenenitrile to 5-cyanovaleric acid or its corresponding esters |
| 07/15/2008 | US7399882 Optimized liquid-phase oxidation |
| 07/15/2008 | CA2202503C Modified polyunsaturated fatty acids |
| 07/10/2008 | WO2008082551A1 Process for the synthesis of ethers of aromatic acids |
| 07/10/2008 | WO2008082510A1 Process for the synthesis of ethers of aromatic acids |
| 07/10/2008 | WO2008082501A1 Process for the synthesis of halogenated aromatic diacids |
| 07/10/2008 | WO2008082413A1 Method of purifying dianhydrides |
| 07/10/2008 | WO2008082145A1 Method and apparatus for the purification of high-purity 2,6-naphthalene dicarboxylic acid |
| 07/10/2008 | WO2008082107A1 Method and system for separation and purification of high-purity 2,6-dimethylnaphthalene by continuous crystallization |
| 07/10/2008 | WO2008081907A1 Process for producing (meth)acrylic acid |
| 07/10/2008 | WO2008081793A1 METHOD FOR PRODUCING α,β-UNSATURATED CARBOXYLIC ACID |
| 07/10/2008 | WO2008081792A1 Method for regenerating palladium-containing metal loaded catalyst, palladium-containing metal loaded catalyst and method for producing the same |
| 07/10/2008 | WO2008081191A1 Improved method for the wittig reaction in the preparation of carboprost |
| 07/10/2008 | WO2008062471A3 A mild method for the production of di-n-propylacetic acid (valproic acid) |
| 07/10/2008 | WO2008010785A3 A process to enrich a carboxylic acid composition |
| 07/10/2008 | US20080167493 Methods for conversion of tyrosine to p-hydroxystyrene and p-hydroxycinnamic acid |
| 07/10/2008 | US20080167485 providing a catalyst comprising a gel-type acidic ion exchange resin; and contacting said catalyst with said at least one reactant; reaction is selected from among esterification, alkene addition or isomerization, Friedel-Crafts acylation, alcohol or alkene carbonylation, nitration and Ritter reaction |
| 07/10/2008 | US20080167462 2-substituted phenyl-5, 7-dehydrocarbyl-3, 7-dihydropyrrolo [2, 3-d] pyrimidin-4-one derivatives, the preparation and the pharmaceutical use thereof |
| 07/09/2008 | EP1942094A1 Method for recovering tungsten |
| 07/09/2008 | EP1940766A1 Neutralization process |
| 07/09/2008 | EP1940764A1 Mixed oxide catalysts for the catalytic gas-phase oxidation of olefins and processes for producing them |
| 07/09/2008 | EP1940763A1 Process for preparing acrolein or acrylic acid or a mixture thereof from propane |
| 07/09/2008 | EP1381464B1 Catalysis reactor comprising catalyst support with intersecting channel network |
| 07/09/2008 | EP1301456B1 Production of aromatic carboxylic acids |
| 07/09/2008 | CN101218219A High yield synthesis methods for producing organic salts of strontium |
| 07/09/2008 | CN101218024A Method for start-up of oxidation catalysts |
| 07/09/2008 | CN101215265A Method for integrally extracting and purifying ligustrazine, ferulic acid and volatile oil in ligusticum wallichii |
| 07/09/2008 | CN101215232A Technique for reclaiming byproduct o-chlorobenzoic acid of o-chlorobenzaldehyde production |
| 07/09/2008 | CN101215231A Method for preparing calcium salt by using shell as raw material |
| 07/09/2008 | CN101215230A Continuous producing method and device for formic acid |
| 07/09/2008 | CN101215063A Integral treatment method for waste water of acephate producing process |
| 07/09/2008 | CN101214439A Catalyst for propionic acid synthesized by ethanol carboxylation and preparation thereof |
| 07/09/2008 | CN100400494C Process for separating saturated fatty acids from fatty acid mixtures |
| 07/09/2008 | CN100400493C Method for producing lubricant detergents |
| 07/09/2008 | CN100400492C Neutral carbonated alkaline earth metal carboxylates |
| 07/09/2008 | CN100400157C Catalyst for oxidation or ammoxidation |
| 07/08/2008 | US7396957 Process for producing (meth)acrylic acids and process for distilling the same |
| 07/08/2008 | CA2211939C Process for producing rhein and diacerhein |
| 07/03/2008 | WO2008079901A2 Method of making fatty acid ester derivatives |
| 07/03/2008 | WO2008079225A1 Process for the synthesis of ethers of aromatic acids |
| 07/03/2008 | WO2008079218A1 Process for the synthesis of ethers of aromatic acids |