| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 09/21/2005 | CN1670008A Process for preparing Danshensu |
| 09/21/2005 | CN1219775C Halogen contained aromatic compound |
| 09/21/2005 | CN1219771C Process for preparing 1, 5-diaryl-3-substituted pyrazoles |
| 09/21/2005 | CN1219743C Process for preparation of sorbic acid |
| 09/21/2005 | CN1219741C New method for making photocurable halofluorinated acrylates |
| 09/21/2005 | CN1219737C Method for producing methacrolein from isobutane |
| 09/21/2005 | CN1219733C Method and catalyst for preparing oxide containing two carbon atoms from synthetic gas |
| 09/21/2005 | CN1219564C Porous plate column without drainage tube |
| 09/20/2005 | US6946574 Reacting ethylenic or acetylenic unsaturation conjugated with another unsaturation or an electron donor by reaction of carbon monoxide and water in presence of palladium based catalyst, regenerating the Pd zero valnce by reducing PdO |
| 09/20/2005 | US6946573 Method for starting up reactor and reactor system |
| 09/20/2005 | US6946572 Crystallization of adipic acid from its solution in aqueous nitric acid |
| 09/20/2005 | US6946571 multistage evaporation first at low temperature then at high temperature in inert gas; reduced dissolution and fines |
| 09/20/2005 | US6946569 high stereoselectivity; mannitol and tartaric acid starting materials, hydrogenation of ketones, imines, and olefins; 1,2((2,2',5,5'-tetramethyl, 3,3',4,4'-tetrahydroxy) bisphospholane)benzene. |
| 09/20/2005 | US6946567 Skeletal isomerization of alkyl esters and derivatives prepared therefrom |
| 09/20/2005 | US6946564 3-(p-fluorophenyl)-6-(hydroxymethyl)isobenzofuran oxidized by Manganese dioxide to 3-(p-fluorophenyl)-6-isobenzofurancarbaldehyde |
| 09/20/2005 | CA2238758C Process for the carbonylation of acetylenically unsaturated compounds |
| 09/15/2005 | WO2005085167A1 Process for producing (meth)acrylic acid |
| 09/15/2005 | WO2005085166A1 Removal of permanganate reducing compounds from methanol carbonylation process stream |
| 09/15/2005 | WO2005085165A1 (meth)acrylic acid composition and process for producing the same |
| 09/15/2005 | WO2005085164A1 Novel triple mineral salts of (-)-hydroxycitric acid and processes for preparing the same |
| 09/15/2005 | WO2005085163A1 Process for producing acetic acid |
| 09/15/2005 | WO2005085162A1 Process for producing carbonylation products |
| 09/15/2005 | WO2005084789A1 Slurry discharging method |
| 09/15/2005 | WO2005037756A3 Novel methods for the preparation of 4-[4-(4-methoxymethoxy-4'-methyl-biphenyl-2-yl)-but-3-ene-(e)-1-ynyl]-benzoic acid |
| 09/15/2005 | US20050203312 Catalytically converting alkanes, alkenes to their corresponding oxygenates such as unsaturated carboxylic acids and esters, by vapor phase oxidation; efficiency and selectivity |
| 09/15/2005 | US20050203309 Modified catalysts and process |
| 09/15/2005 | US20050203269 Novel dicarboxylic acids are described herein that are suitable for the preparation of high-temperature-stable polymers, which are particularly useful in forming suitable dielectrics in microelectronics. |
| 09/15/2005 | US20050203180 fewer side-effects by showing no hormone properties; enhancing the learning and memory-retention, treat dementia |
| 09/15/2005 | US20050202965 Modified catalysts and process |
| 09/15/2005 | US20050202964 Catalytically converting alkanes, alkenes to their corresponding oxygenates, including unsaturated carboxylic acids and esters, by vapor phase oxidation; efficiency and selectivity of mixed metal oxide catalyst improved by chemical or physical treatments or combination of both |
| 09/15/2005 | DE102004009549A1 Performing base-catalyzed reactions comprises using a soluble polymeric base and withdrawing the product through a nano- or ultrafiltration membrane |
| 09/15/2005 | DE102004008574A1 Process and plant for purification of (meth)acrylic acid, used for making fiber, molding, film, foam, superabsorbent polymer or hygiene article, uses dimer cracker and separation system to remove protoanemonin and maleic acid and anhydride |
| 09/14/2005 | EP1574560A1 Process for solventfree production of ether carboxylic acids with a low rest salt content |
| 09/14/2005 | EP1574495A1 Adamantane derivatives |
| 09/14/2005 | EP1574494A1 Adamantane derivative |
| 09/14/2005 | EP1574255A2 Modified Mo-V-Nb-based metal oxide catalysts |
| 09/14/2005 | EP1574254A2 Process for modifying of Mo-V-Nb-based metal oxide catalysts and processes for producing an unsaturated carboxylic acid |
| 09/14/2005 | EP1574253A2 Process for modifying of Mo-V-Nb-based metal oxide catalysts |
| 09/14/2005 | EP1572844A1 Method for producing conjugated linoleic acid |
| 09/14/2005 | EP1572616A1 Selective reaction of hexafluoropropylene oxide with perfluoroacyl fluorides |
| 09/14/2005 | EP1572615A1 Process for the synthesis of peptides containing a 4-hydorxy-proline substructure |
| 09/14/2005 | EP1572613A1 Method for the production of benzophenones |
| 09/14/2005 | EP1409440A4 A method to inhibit ethylene responses in plants |
| 09/14/2005 | EP1404568B1 Pivotable cover lid for a convertible |
| 09/14/2005 | EP1345885B1 Method for producing cinnamic acid esters |
| 09/14/2005 | EP1210311B1 A process for carboxylation of naphthoic acid to naphthalene dicarboxylic acid |
| 09/14/2005 | CN1668571A Method for producing diol derivatives |
| 09/14/2005 | CN1668569A Preparations containing diformates and short-chain carboxylic acids |
| 09/14/2005 | CN1668568A Microporous catalyst and method for hydrogenating aromatic compounds |
| 09/14/2005 | CN1668567A Heterogeneously catalyzed gas-phase partial oxidation of at least one organic compound |
| 09/14/2005 | CN1668566A Method for the production of a dicarboxylic acid from acrylic acid |
| 09/14/2005 | CN1668553A Safe operation of a continuous heterogeneously catalyzed gas-phase partial oxidation of at least one organic compound |
| 09/14/2005 | CN1218924C Method for controlling density of sizing agent in hydrorefining work section of equipment of fine terephthalic acid |
| 09/14/2005 | CN1218923C Process for producing (methyl) propenoic acid |
| 09/14/2005 | CN1218922C Method of preparing adipic acid by air-oxidating hexacarbocyclic compound |
| 09/14/2005 | CN1218791C Method and device for extracting organic matter from sulfur-containing slag current |
| 09/13/2005 | US6943257 Low cost, minimizing environmental pollution, halogenation in presence of halodimethylsulfonium halide prepared in situ from halohydric acid and dimethylsulfoxide, as activated nucleophilic agent, one-pot process, bromination |
| 09/13/2005 | US6943135 oxidation catalysts used for gas phase oxidation of hydrocarbons, to from carboxylic acids or nitriles |
| 09/13/2005 | US6942997 An enzymatic system comprised of glucose oxidase and a catalase that result in the complete conversion of glucose to gluconic acid which is free from impurities normally associated with the fermentation process |
| 09/13/2005 | US6942803 Process for purifying an organic acid |
| 09/13/2005 | CA2189247C Recovery of carboxylic acid from organic solution that contains an amine and an extraction enhancer |
| 09/13/2005 | CA2189246C Recovery of carboxylic acid from organic solution that contains an amine and an extraction enhancer |
| 09/13/2005 | CA2122318C Vanadium phosphorous catalysts and process for the selective oxidation of hydrocarbons |
| 09/13/2005 | CA2058553C Preparation of e-oxime ethers of phenylglyoxylic esters |
| 09/09/2005 | WO2005082832A1 Method of storing (meth)acrylic acid or ester thereof |
| 09/09/2005 | WO2005082830A1 Process for the carbonylation of ethylenically or acetylenically unsaturated compounds |
| 09/09/2005 | WO2005082827A1 Method of handling hihgly viscous substance |
| 09/09/2005 | WO2005082826A1 Chemical method for recycling polyethylene terephtalate (pet) wastes |
| 09/09/2005 | CA2557362A1 Process for the carbonylation of ethylenically or acetylenically unsaturated compounds |
| 09/08/2005 | US20050197513 Control method for process of removing permanganate reducing compounds from methanol carbonylation process |
| 09/08/2005 | US20050197510 Synthesis of carbon-labeled perfluoroalkyl compounds |
| 09/08/2005 | US20050197509 Removal of permanganate reducing compounds from methanol carbonylation process stream |
| 09/08/2005 | US20050197508 Removal of permanganate reducing compounds from methanol carbonylation process stream |
| 09/08/2005 | US20050197507 Catalytic multiphase reactions in a tubular reactor; hydrocarboxylation of at least one olefin to a carboxylic acid |
| 09/08/2005 | US20050197506 From carbon monoxide and methanol, methyl acetate, methyl formate, and/or dimethyl ether in water, methyl iodide, and catalyst; enhanced phase separation of first and second liquid phases by adding dimethyl ether to the mixture, the overhead fraction or the refluxed portion of the first liquid phase |
| 09/08/2005 | US20050197387 E2,E4,Z8-undecatrienoic acid and ester and carboxamide derivatives thereof, organoleptic uses thereof and processes for preparing same |
| 09/08/2005 | US20050197261 Alkylating a basic mixture of oxoalkylated alcohols with a chlorocarboxylic acid, adding an acid to obtain ethercarboxylic acid, distillation under reduced pressure, removing the precipitated metal salts by filtration |
| 09/08/2005 | DE102004008575A1 Spaltung oligomerer (Meth)acrylsäure in flüssiger Phase unter Druck Cleavage oligomeric (meth) acrylic acid in the liquid phase under pressure |
| 09/07/2005 | EP1571137A2 Catalyst for catalytic gas phase oxidation of acrolein and process for producing acrylic acid by catalytic gas phase oxidation using said catalyst |
| 09/07/2005 | EP1570902A1 Process for manufacturing tertiary carboxylic acids |
| 09/07/2005 | EP1570747A1 Method for purifying marine mammal oil enriched in omega 3 fatty acids and compositions comprising same |
| 09/07/2005 | EP1569889A1 Process for the oxidative purification of terephthalic acid |
| 09/07/2005 | EP1569888A1 Process for the oxidative purification of terephthalic acid |
| 09/07/2005 | EP1569887A1 Process for the purification of a crude carboxylic acid slurry |
| 09/07/2005 | EP1569886A2 Method for reducing mehq content in acrylic acid |
| 09/07/2005 | EP1569745A1 Shell-and-tube type reactor for catalytic gas phase reactions |
| 09/07/2005 | CN1665771A Process for producing aromatic dicarboxylic acids under supercritical conditions |
| 09/07/2005 | CN1665770A Method for separating water generated in production of aromatic polycarboxylic acid by aromatic hydrocarbon catalytic oxidation |
| 09/07/2005 | CN1665575A Method for the rectifying separation of fluids containing (meth)acryl monomers |
| 09/07/2005 | CN1665495A A process for preparing long chain saturated or unsaturated oxygenated compounds |
| 09/07/2005 | CN1663942A Method for separating mandelic acid enantiomer |
| 09/07/2005 | CN1663682A Zirconium-base catalyst for synthesis of isobutyric acid and preparation method thereof |
| 09/07/2005 | CN1663679A Carbon-supported noble metal catalyst and preparation method thereof |
| 09/07/2005 | CN1217923C Process for preparing acid via alpha-chloroepoxy esters |
| 09/07/2005 | CN1217913C Process for the preparation of alpha-arylalkanoic acids |
| 09/07/2005 | CN1217912C Potassium sorbate granule and preparation process thereof |
| 09/07/2005 | CN1217911C Method for preventing easy-to-polymerize material from polymerization and preparation method of (methyl) acrylic acid and acrylate |
| 09/07/2005 | CN1217910C Method of producing acyl fluorides from acyl chlorides |
| 09/07/2005 | CN1217909C Method of treating fluorine compound |
| 09/07/2005 | CN1217908C Method of purifying aromatic dicrrboxylic acids |