Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
05/2010
05/19/2010CN101143815B Method for preparing felbinac
05/19/2010CN101125809B Solvent-free heating-free method for synthesizing potassium diformate
05/19/2010CN101113133B Method for extracting carnosic acid
05/19/2010CN101085733B Method for preparing refined acrylic acid by removing micro-impurity aldehyde
05/19/2010CN101074190B Alpha-substituted 3,5-bisubsituted acrylic acid and its derivative, preparation and use
05/19/2010CN101049571B Complex type molecular sieve catalyst, preparation method, and application in preparing crylic acid
05/18/2010US7718568 Hydrothermally synthesized Mo-V-M-Nb-X oxide catalysts for the selective oxidation of hydrocarbons
05/18/2010CA2170822C Process for the synthesis of .alpha.-substituted acrylic acids and their application
05/14/2010WO2010053571A2 Methanol carbonylation with improved aldehyde removal
05/14/2010WO2010052909A1 Methacrylic acid manufacturing method and catalyst for methacrylic acid manufacture
05/14/2010WO2010051676A1 A cleaning process of producing lactic acid
05/14/2010WO2010023053A3 Use of foam bodies in oxidation reactors for preparing unsaturated aldehydes or carboxylic acids
05/14/2010CA2742617A1 Methanol carbonylation with aldehyde removal
05/13/2010US20100121101 Methanol carbonylation with improved aldehyde removal
05/13/2010US20100121099 Process for the carbonylation of dimethyl ether
05/13/2010US20100121098 Process for the carbonylation of dimthyl ether
05/13/2010US20100121096 Zeolite-catalyzed preparation of alpha-hydroxy carboxylic acids and esters thereof
05/13/2010US20100121007 Catalyst for producing of acrylic acid, method for producing acrylic acid using the catlyst and method for producing water-absorbent resin using the acrylic acid
05/13/2010US20100120949 Use of a feed compositions in preparation of methacrylic acid by oxidation
05/12/2010EP2184270A1 Zeolite-catalyzed preparation of alpha-hydroxy carboxylic acid compounds and esters thereof
05/12/2010EP1663482B1 Niobium-doped vanadium/phosphorus mixed oxide catalyst
05/12/2010CN201458996U Device for removing calcium formate from pentaerythritol in calcium-method production
05/12/2010CN201458995U Device for removing sodium formate from neopentyl glycol in sodium-method production
05/12/2010CN201454447U Stirring device for jacket refrigerating pot
05/12/2010CN1972751B Process for producing catalyst for methacrylic acid synthesis
05/12/2010CN1865214B Method for producing aromatic carboxylic acid using nitrogen oxide as catalytic additive
05/12/2010CN1847212B Process for manufacturing high purity methacrylic acid
05/12/2010CN1843630B Method for reclaiming oxidation catalyst
05/12/2010CN1816516B Method for selective carbohydrate oxidation using supported gold catalysts
05/12/2010CN1723085B Method for preserving catalyst
05/12/2010CN101705156A Method for preparing stearic acid from low-grade grease
05/12/2010CN101704830A Method for preparing mixed cobalt base under environment of low basicity
05/12/2010CN101704777A Method for removing trans isomers with double bond at 5,6-positions from prost compounds
05/12/2010CN101704743A Method for preparing hydroginkgolic acid
05/12/2010CN101704742A Reactor for producing aromatic carboxylic acid
05/12/2010CN101704741A Process for producing isophthalic acid
05/12/2010CN101704740A Novel process for preparing 3-(substituted benzoyl) butyric acid
05/12/2010CN101704739A Method for extracting citric acid and/or sodium citrate from fermentation liquor by using extraction method
05/12/2010CN101704738A Production method of ammonium ferric citrate
05/12/2010CN101704737A Method for separating gulonic acid from gulonic acid crystallization mother liquor by adopting ion exchange and bipolar electrodialysis membrane stack
05/12/2010CN101704736A Emergency treatment method of chlorine effusion during producing beta-hydroxyl-beta-methyl butyric acid
05/12/2010CN101704735A Method for preparing acetic anhydride
05/12/2010CN101704734A Method for recovering diluted acetic acid in production process of trimellitic anhydride
05/12/2010CN101704733A New hydrolysis coupling process of methyl acetate and special device thereof
05/12/2010CN101703946A Copolymer-iridium catalyst used for preparing acetic acid through carbonylation reaction
05/12/2010CN101703944A Molecular sieve modified catalyst, preparation method and application thereof to preparation of acrylic ester
05/12/2010CN101703898A PDMS/PVDF pervaporation composite membrane, preparation method and application thereof
05/12/2010CN101080379B Process for preparing purified terephthalic acid
05/12/2010CN101012163B Method of preparing high purity Danshensu
05/12/2010CN101003476B Technique for preparing disodium valproate
05/11/2010US7714165 e.g. reacting (meth)acrylic acid with keten in presence of polymerization inhibitor such as 2,4-dimethyl-6-tert-butylphenol and an inert vaporization oil such as sulfolane, using acidic ion exchage fixed bed catalyst
05/11/2010US7714164 Method for producing (meth) acrylic acid
05/11/2010US7713559 Amorphous water-soluble calcium citrate salts and method of making and using same
05/11/2010US7713418 Process for recovering organic compounds from aqueous streams containing same
05/11/2010CA2684852A1 Zeolite-catalyzed preparation of .alpha.-hydroxy carboxylic acid compounds and esters thereof
05/11/2010CA2431091C Organic reactions with co generating materials
05/11/2010CA2272439C A process for the preparation of 13-cis-retinoic acid
05/06/2010WO2010050499A1 Process for production of optically active organic carboxylic acid
05/06/2010WO2010049697A2 Improved pure carboxylic acid filtration
05/06/2010US20100113826 For example para-xylene to terephthalic acid to polyethylene terephthalate; improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions while at the same time minimizing wastewater treatment cost
05/06/2010US20100113825 e.g. xylene to terephthalic acid or isophthalic acid; energy, cost and wastewater disposal efficiency
05/06/2010US20100113824 improved energy content in and shaft power recovery from off-gas from xylene oxidation reactions to terephthalic acid while at the same time minimizing wastewater treatment cost
05/06/2010US20100113822 Preparation of acrylic acid derivatives from alpha- or beta-hydroxy carboxylic acids
05/06/2010US20100113735 Integrated Co-Production of Dicarboxylic Acids
05/06/2010US20100113595 Treatment of neurodegenerative conditions
05/05/2010EP1328499B1 Method of producing carboxylic acid salts
05/05/2010CN1978055B Hydroformylation catalytic system and use
05/05/2010CN1910128B Method for producing acrylic acid
05/05/2010CN1902154B Process for the purification of (meth)acrylic acid obtained from an oxidation of a gaseous substrate
05/05/2010CN1852883B Alpha-hydroxy-benzeneacetic acid derivatives, and compounds having two 5-membered lactone rings fused to central cyclohexa-1,4-diene nucleus based upon the same, and uses of the compounds
05/05/2010CN1849170B Niobium-doped vanadium/phosphorus mixed oxide catalyst
05/05/2010CN1820076B Method for producing organic acid
05/05/2010CN1781594B Non-routine reactor shutdown method
05/05/2010CN1656053B Process for the production of acetic acid
05/04/2010US7709681 Process for the production of trimellitic acid
05/04/2010US7709668 Separation technology
04/2010
04/29/2010WO2010048300A1 Gas-phase catalyzed production of alkyl alkoxyacetates from dialkoxymethanes
04/29/2010WO2010047405A1 Catalyst for production of acrolein and acrylic acid by means of dehydration reaction of glycerin, and process for producing same
04/29/2010WO2010046110A1 Method for activating a catalyst
04/29/2010WO2010046070A1 Solubilizer for metal ions
04/29/2010WO2009095216A3 Catalyst for the catalytic gas phase oxidation of aromatic hydrocarbons to form aldehydes, carboxylic acids and/or carboxylic acid anydrides, in particular phthalic acid anhydride
04/29/2010US20100105949 Radiosynthesis of acid chlorides
04/29/2010US20100105944 Improvements in Oxidative Demetalling
04/29/2010US20100105925 Novel process for preparation of duloxetine hydrochloride
04/29/2010US20100105924 Processes of producing glutamic acid compounds and production intermediates therefore and novel intermediate for the processes
04/29/2010US20100105907 Continuous antisolvent crystallization process and system using plug flow reactors
04/28/2010EP2179982A2 Method for producing mechanically activated amorphous and amorphocrystalline compounds of gluconic acid calcium salt
04/28/2010EP2179793A1 Phosphorous-containing mixed oxide catalysts
04/28/2010EP2179790A1 Bismuth-containing mixed oxide catalysts
04/28/2010CN1867536B Process for separation of alkyl branched fatty acids from a fatty acid mixture
04/28/2010CN101698859A Production method of n-hexadecyl dibasic acid
04/28/2010CN101698643A Boiling bleacher used in production process of sodium benzoate and operating process
04/28/2010CN101698642A Methylbenzene raw material system in production process of benzoic acid and process flow
04/28/2010CN101698640A Method for extracting citric acid
04/28/2010CN101698639A Method for recycling sodium formate products from coarse sodium formate of byproduct of polyhydric alcohol
04/28/2010CN101698146A Microscale reactor for synthesizing radioactive drug and application thereof
04/27/2010US7705181 Process for removing methacrylic acid from liquid phase comprising acrylic acid as a main constituent and target product, and methacrylic acid as a secondary component
04/27/2010US7705180 Process for the preparation of lactic acid or lactate from a magnesium lactate comprising medium
04/27/2010US7705179 Method for oxidising hydrocarbons, alcohols and/or ketones
04/27/2010US7705169 Reacting fatty acid with sodium bicarbonate; solubilizing; high power liquid chromatography
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