Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
10/2005
10/06/2005US20050222458 Catalytic dehydration and amidation of alpha or beta hydroxycarboxylic acids; efficient, simple, mild reaction conditions; water tolerance
10/06/2005US20050222457 Process for producing aromatic compounds by friedel-crafts reaction
10/06/2005US20050222455 Method for producing 3-hydroxy-2-methylbenzoic acid
10/06/2005US20050222436 Reacting vanadium pentoxide with phosphoric acid in the presence of alcohol; isolating the precipitate formed, heat treatment, shaping the heat-treated product obtained into particles having an averaged diameter of at least 2 mm
10/06/2005US20050222435 Reacting vanadium pentoxide in the presence of alcohol with phosphoric acid, heating, stirring and subsequently filtering the resultant suspension
10/06/2005US20050222213 Alpha(trifluoromethyl-substituted aryloxy, arylamino, arylthio or arylmethyl)-trifluoromethyl-substituted phenylacetic acids and derivatives as antidiabetic agents
10/06/2005US20050221457 Methods of manufacturing derivatives of beta-hydroxycarboxylic acids
10/06/2005DE10314203B4 Verfahren zur Abtrennung von (Meth)Acrylsäure aus einer (Meth)Acrylsäure-haltigen Zusammensetzung A process for separating (meth) acrylic acid from a (meth) acrylic acid-containing composition
10/05/2005EP1581469A1 Method for producing naphthalene derivatives
10/05/2005EP1581340A1 Process for preparing vanadyl pyrophosphate catalyst
10/05/2005EP1246794A4 Process and intermediates for preparing a cyclohexylnitrile
10/05/2005CN1678389A Oxidation method
10/05/2005CN1221513C Process for producing (methyl) propenoic acid
10/05/2005CN1221512C Process for preparing isobutanoic acid
10/05/2005CN1221511C Acetic acid purification process
10/05/2005CN1221510C Refining method for long-chain biatomic acid
10/05/2005CN1221509C Production process of butane tetra formic acid derivatives by means of coupled electrosynthesis
10/05/2005CN1221508C Process for producing alkanedicarboxylic acid
10/05/2005CN1221507C Process for preparation of sorbic acid
10/05/2005CN1221504C Perfluoroisopropylbenzene derivatives
10/04/2005US6951957 Process for producing a fluorine-containing compound by liquid phase fluorination
09/2005
09/29/2005WO2005090277A1 Method of preventing clogging of apparatus for handling (meth)acrylic acid or ester thereof
09/29/2005WO2005090272A1 Cyclone reactor and associated methods
09/29/2005WO2005090267A2 Methods to prepare carbon-isotope organohalides with high specific radioactivity from carbon-isotope monoxide
09/29/2005WO2005090266A1 Radiosynthesis of acid chlorides
09/29/2005WO2005089943A1 Process for producing composite oxide catalyst
09/29/2005WO2005073159A3 Carboxylation of aromatic hydrocarbons to produce aromatic carboxylic acids
09/29/2005WO2005066109B1 A process for the preparation of 2-hydroxy carboxylic acids
09/29/2005WO2005035478A3 Method for rectification separation of a liquid from an acrylic acid
09/29/2005US20050215828 Oxo process
09/29/2005US20050215818 Catalyst for production of acrylic acid and process for production of acrylic acid using this catalyst
09/29/2005US20050215817 Reacting an oily alicyclic alcohol or ketone with an aqueous hydrogen peroxide in the presence of a Group 6 catalyst; glutaric acid, adipic acid, pimelic acid, or suberic acid synthesis; mild reaction conditions; nontoxic; pollution control
09/29/2005US20050215816 Cyclic ketones, their preparation and their use in the synthesis of amino acids
09/29/2005US20050215815 Method of producing trimellitic acid
09/29/2005US20050215813 Method for preventing clogging in apparatus for handling (meth)acrylic acid or esters thereof
09/29/2005US20050215794 Group IB compounds used as condensation, amination, amidation or arylation catalysts; catalysis; efficiency; forming a carbon-carbon bond between a reactant comprising a nucleophilic carbon atom, e.g., enolate or malonate anion, and activated carbon of an aryl, heteroaryl, or vinyl halide or sulfonate
09/29/2005US20050215641 Compositions comprising reverse isomers of conjugated linoleic acid
09/29/2005US20050211542 Method for the rectifying separation of fluids containing (meth)acryl monomers
09/29/2005DE102004010505A1 Verfahren zur lösungsmittelfreien Herstellung von Ethercarbonsäuren mit niedrigem Restsalzgehalt A method for solvent-free preparation of ether carboxylic acids with a low residual salt content
09/29/2005CA2559527A1 Cyclone reactor and associated methods
09/28/2005EP1579910A2 Catalyst for production of acrylic acid and process for production of acrylic acid using the catalyst
09/28/2005EP1578714A1 Novel chiral compounds derived from hexanoic acid esters, method and intermediate chemicals for the preparation and use thereof for synthesis of 2-(bromomethyl)2-ethyl hexanoic chiral acid
09/28/2005EP1578713A1 Method for preparing organic acid
09/28/2005EP1280756A4 Synthesis of 2-halobenzyl alkanoic acid
09/28/2005EP1252130B1 Low temperature purification of naphthalene dicarboxylic acids
09/28/2005EP1187800A4 Improved process for the preparation of 3,4-dihydroxybutanoic acid and salts and lactones derived therefrom
09/28/2005CN1675161A Method of vapor phase catalytic oxidation using multitubular reactor
09/28/2005CN1675159A Method and device for producing formic acid formates and use of said formates
09/28/2005CN1675158A Method and device for producing formates and the use thereof
09/28/2005CN1675156A Method for producing carbonyl compound
09/28/2005CN1675145A Method of deuterating aromatic ring
09/28/2005CN1674990A A phospha-adamantane (s) catalytic system
09/28/2005CN1673208A Prepn process of calcium alkyl salicylate
09/28/2005CN1672794A Oxo synthesis catalyst and its prepn process and application in preparing acetic acid and acetic anhydride
09/28/2005CN1672792A Catalyst and prepn process of the catalyst and its ligand, acetic acid and acetic anhydride
09/28/2005CN1672791A Double active species catalyst and its application
09/28/2005CN1672790A Catalyst for catalytic gas phase oxidation of acrolein and process for producing acrylic acid by catalytic gas phase oxidation using said catalyst
09/28/2005CN1672678A Separation and extraction of natural active long-chain fatty acid component for preventing and treating prostatosis and the prepn and application of its medicine prepn
09/28/2005CN1220676C Process for producing acid anhydride
09/28/2005CN1220670C Method for purifying (meth) acrylic monomers by distillation
09/28/2005CN1220669C Method for recovering organic acid and inorganic salt from oxidized and saponified cyclohexane waste lye
09/28/2005CN1220668C Method for preparing carboxylic acids by palladium carbonylation
09/28/2005CN1220667C Organic compounds and processes for their manufacture
09/28/2005CN1220658C Alkene oligomerization process
09/28/2005CN1220551C Method for producing multiple-phase multi-metal oxide materials
09/27/2005US6949675 Process for producing acrylic acid
09/27/2005US6949673 Process for producing carboxylic acids
09/27/2005US6949668 Process for producing 5-(3-cyanophenyl)-3-formylbenzoic acid compound
09/27/2005CA2256489C Process for the production of chromium(iii) salts of short chain fatty acids for use in animal feeds
09/27/2005CA2169651C Hydroformylation process
09/22/2005WO2005087701A1 Novel 2-(α -n-pentanonyl)benzoates, their preparation and use
09/22/2005WO2005087699A1 Removal of permanganate reducing compounds from methanol carbonylation process stream
09/22/2005WO2005087698A1 Control method for process of removing permanganate reducing compounds from methanol carbonylation process
09/22/2005WO2005087692A2 Process for recovering organic compounds from aqueous streams containing same
09/22/2005WO2005087017A2 Compositions comprising reverse isomers of conjugated linoleic acid
09/22/2005WO2005070862A3 Process for production of a dried carboxylic acid cake suitable for use in polyester production
09/22/2005WO2005070525A3 Process for production of a carboxylic acid/diol mixture suitable for use in polyester production
09/22/2005US20050209485 Fixed-bed catalytic partial oxidation of olefins in a shell-and-tube heat exchange type reactor
09/22/2005US20050209484 Fixed-bed catalytic partial oxidation of propylene, propane, (meth)acrolein, isobutylene, t-butyl alcohol, methyl-t-butyl ether or o-xylene in a shell-and-tube reactor having a catalytic layer with an inactive material layer inserted at a position where a hot spot is to be generated in the reaction tube
09/22/2005US20050209483 Removing heat from the first product stream and providing it to the acetic acid reaction stream and the purification section; using acetic acid from the first product stream with an oxygen-containing gas in the presence of a catalyst to produce vinyl acetate
09/22/2005US20050209482 Storage tank for easily polymerizable compound and method of storage
09/22/2005US20050209481 Process for producing (meth) acrylic esters
09/22/2005US20050209469 Converting propylene in an oxygenate-contaminated propylene stream to non-polymerization derivative products
09/22/2005US20050209467 Process for the preparation of 1 - (3-dimethylaminopropyl) -1 - (4-fluorophenyl) -1,3-dihydroisobenzofuran-5-carbonitrile
09/22/2005US20050209325 Novel interleukin-1 and tumor necrosis factor-alpha modulators, syntheses of said modulators and methods of using said modulators
09/22/2005US20050209322 Sodium ferric gluconate complexes and method of manufacture thereof
09/22/2005US20050209101 Process and apparatus for fluid bed reactions
09/22/2005DE102004011081A1 Verfahren zur Herstellung von tertiären Carbonsäuren A process for the production of tertiary carboxylic acids
09/21/2005EP1577001A1 Plate type catalytic reaction oven
09/21/2005EP1576089A2 Expansion of renewable stem cell populations
09/21/2005EP1575894A1 Process for the preparation of diphenic acid
09/21/2005EP1575893A1 Process for the preparation of fexofenadine
09/21/2005EP1575889A1 A microwave induced process for the preparation of substituted 4-vinylphenols
09/21/2005EP1575557A1 Process for the chemical stabilization of a solubilized retinoid in a solvent using a base
09/21/2005EP1313870B1 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
09/21/2005CN1671829A Engine oil comprising overbased salicylates based on styrenated salicylic acid
09/21/2005CN1671649A Process for preparing nateglinide and intermediates thereof
09/21/2005CN1671642A Method for producing carboxylic acid
09/21/2005CN1671472A Method for the production of a catalyst containing vanadium, phosphorus, and oxygen
09/21/2005CN1671470A Titaniun-vanadium-tin comprising catalyst and process for the preparation of phthalic anhydride