Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
06/2007
06/28/2007WO2007023129B1 Method for separating compound-forming chiral systems
06/28/2007WO2007001649A3 Oxidation of alkanes
06/28/2007US20070149809 Catalyst for production of unsaturated aldehyde and unsaturated carboxylic acid, method for producing same, and method for producing unsaturated aldehyde and unsaturated carboxylic acid
06/28/2007US20070149808 preparation of acrylic acid particularly low in or free of propionic acid, without requiring a crystallizative removal of acrylic acid; in the starting reaction gas mixture, cyclopropane is substantially avoided as an impurity and crude propylene is used additionally as a propylene source; metal oxides
06/28/2007US20070149807 Process for heterogeneously catalyzed partial gas phase oxidation of propylene to acrylic acid
06/28/2007US20070149806 Catalyst for oxidation of saturated and unsaturated aldehydes to unsaturated carboxylic acid, method of making and method of using thereof
06/28/2007US20070149795 Continuous transesterification process
06/28/2007US20070149390 Catalysts for alkane or alkene oxidation and ammoxidation
06/28/2007DE102005061691A1 Kupferverbindungen und deren Verwendung als Fungizid, Algezid und Bakterizid Copper compounds and their use as fungicide, bactericide and algaecide
06/28/2007DE102005058357A1 Verfahren zur Herstellung von substituierten Diamantanen A process for the preparation of substituted diamantanes
06/28/2007CA2632917A1 Carbonylation process
06/28/2007CA2626763A1 Method for producing 5-norbornen-2-carboxylic acid from 5-norbornen-2-carbonitrile using an arylacetonitrilase
06/27/2007EP1801224A1 Process for producing optically active 2-substituent-oxy-3-(4-substituent-oxyphenyl)­propionic acid derivative
06/27/2007EP1801193A1 Process for producing concentrate of unsaturated fatty acid
06/27/2007EP1801093A1 Process for the Preparation of enantiomer-enriched 2-Alkoxy-3-Phenyl-Propionic Acid
06/27/2007EP1801092A1 Process for producing biphenyltetracarboxylic acid
06/27/2007EP1525177B1 Substituted 1,3-diphenylprop-2-en-1-one derivatives, preparation and uses thereof
06/27/2007CN1989095A Resolution of p-hydroxyphenyl-2-alkoxypropionic acids
06/27/2007CN1988955A Method for producing oxygen-containing compound
06/27/2007CN1988954A Catalysts based on metal complexes for the synthesis of optically active chrysanthemic acid
06/27/2007CN1986516A Process for preparing enantiomerically enriched 2-alkoxy-3-phenylpropionic acids
06/27/2007CN1986515A Process of extracting omega-3 polyunsaturated fatty acid from turtle oil
06/27/2007CN1986514A Preparing process and apparatus for nano aromatic copper salt
06/27/2007CN1986053A Liquid phase reaction process of methyl acetate and CO to produce acetic anhydride and its catalyst preparing process
06/27/2007CN1323062C Method for preparing alkyl salicylic acid
06/27/2007CN1323061C Method for inhibiting polymerization in ther process of preparing acrylic acid
06/26/2007US7235158 Stable distillation of polymerizable compound while inhibiting the polymerization
06/21/2007WO2007069805A1 Purification method of crude naphthalene dicarboxylic acid using microorganism and 2,6-naphthalene dicarboxylic acid in crystalline form obtained by using the same
06/21/2007WO2007069745A1 Method for producing optically active (4e)-5-chloro-2-isopropyl-4-pentenoic acid or basic amino acid salt thereof
06/21/2007US20070142668 Method of separating stereoisomers of dicarboxylic acid having norbornene or norbornane structure, or derivative thereof
06/21/2007US20070142667 Process for preparing(+)-2-(4-chlorophenyl)-3-methyl butanoic acid
06/21/2007US20070142666 Process for producing alpha, beta-unsaturated carboxylic acid
06/21/2007US20070142472 Process for producing optically active 3-(4-hydroxyphenyl)proprionic acids
06/21/2007CA2631409A1 Method for producing optically active (4e)-5-chloro-2-isopropyl-4-pentenoic acid or basic amino acid salt thereof
06/20/2007EP1797953A1 Process for producing oxygenic compound
06/20/2007EP1797027A1 Purification of a distilled bottom product containing (meth)acrylic acid by means of a crystallization process
06/20/2007EP1448282B1 Device for performing the purifying separation of crystals out of their suspension in a contaminated crystal melt
06/20/2007EP1439901B1 Reactor arrangement for carrying out catalytic gas phase reactions, especially to obtain phthalic acid anhydride
06/20/2007EP1114812B1 Processes for the preparation of fluorinated benzoic acids
06/20/2007CN1984863A Method for the purification of (meth)acrylic acid
06/20/2007CN1984862A Process for removal of impurities from mother liquor in the synthesis of carboxylic acid using pressure filtration
06/20/2007CN1983044A Charge control agent, charge control resin particles and toner for developing electrostatic images
06/20/2007CN1982284A Production method of (R) -3 hydroxy-3- (2-phenylethyl) hexanoic acid and intermediate thereof
06/20/2007CN1982283A Process for producing high purity terephthalic acid
06/20/2007CN1982282A Process for puriying an organic acid
06/20/2007CN1982281A Process for puriying an organic acid
06/20/2007CN1982280A Process for puriying an organic acid
06/20/2007CN1982279A Preparation of shikimic acid
06/20/2007CN1321970C Vapor-phase carbonylation of lower aliphatic alcohols using tin promoted iridium catalyst
06/20/2007CN1321969C Process for preparing cis-halochrysanthemic acid
06/20/2007CN1321968C Method for purifying acrylic acid b utilizing azeotropic rectification
06/20/2007CN1321966C Improvement to methods for continuous production of acetic acid and/or methyl acetate
06/19/2007CA2314875C Inhibitor composition for stabilizing substances capable of free radical polymerization
06/19/2007CA2288276C Catalyst and process for the catalytic oxidation of ethane to acetic acid
06/14/2007WO2007066532A1 Method for producing tetrafluoroterephthalic acid difluoride
06/14/2007WO2007066529A1 Method for producing tetrafluoroterephthalic acid difluoride
06/14/2007WO2007066365A1 A process for preparing high purity terephthalic acid
06/14/2007WO2007065744A1 Stabilization of monomer emulsions against premature polymerization
06/14/2007WO2007065513A1 Process for preparing an aromatic carboxylic acid
06/14/2007WO2007021487A8 Process for removal of benzoic acid from an oxidizer purge stream
06/14/2007WO2007017157A8 Supported gold catalyst
06/14/2007US20070135653 Reacting the acrolein with a compound containing a reactable thiol or hydroxyl moiety in the presence of an acid catalyst; by-product inhibition
06/14/2007CA2630277A1 Stabilization of monomer emulsions against premature polymerization
06/13/2007EP1795521A1 Method for producing acrylic acid
06/13/2007EP1795520A1 Process for the preparation of an aromatic carboxylic acid
06/13/2007EP1794180A1 Peptide cyclisation
06/13/2007EP1519908B1 Composition based on substituted 1,3-diphenylprop-2-en-1-one derivatives, preparation and uses thereof
06/13/2007EP1471048B1 Method for producing high purity glycolic acid crystals
06/13/2007EP1309674B1 Stereoselective esterase from aspergillus oryzae
06/13/2007CN2910344Y Bubbling tower oxidizing apparatus for production of aromatic carboxyl acid
06/13/2007CN1980881A Method of making halophthalic acids and halophthalic anhydrides
06/13/2007CN1980878A Method for the production of acrolein, acrylic acid, or a mixture thereof by means of heterogeneously catalyzed partial gas phase oxidation of propylene
06/13/2007CN1978473A Resveratrol imprinted polymer preparation and extraction method for resveratrol
06/13/2007CN1978422A Method for separating and purifying shikimic acid
06/13/2007CN1978421A Preparation of calcium gluconate from gypsum
06/13/2007CN1978420A Preparation of calcium nitrate from gypsum
06/13/2007CN1978419A Preparation of calcium lactate from gypsum
06/13/2007CN1978059A Catalytic composition for preparing acetic anhydride
06/13/2007CN1978055A Hydroformylation catalytic system and use
06/13/2007CN1320954C Easily polymerizable compound-treating apparatus using chamfered pot Flamge
06/12/2007US7230144 Methods of making intermediates from polyhydroxyalkanoates
06/12/2007US7230128 Unbridged metallocenes containing a fluorene ring and optionally a cyclopentane, indene or tetrahydroindene ring, and their preparation from an alkali metal fluorene compound and a transition metal halide, alcohol or alkyl compound; polymerizing olefins using the metallocenes as catalysts
06/12/2007US7230120 Amorphous HMG-CoA reductase inhibitors of desired particle size
06/12/2007US7229946 Catalyst composition for the selective conversion of alkanes to unsaturated carboxylic acids, method of making and method of using thereof
06/12/2007CA2284721C Process for preparing 2,6-naphthalenedicarboxylic acid
06/07/2007WO2007063974A1 Process for hydrogenating aromatic ring of aromatic ring compound
06/07/2007WO2007063523A1 Intermediates and process for the preparation of aromatic derivatives of 1-adamantane
06/07/2007WO2007063522A1 Process for the preparation of aromatic derivatives of 1-adamantane
06/07/2007WO2007062561A1 A refining method which can improve the solubility of ferric citrate
06/07/2007WO2007028751A3 Neutralization method
06/07/2007WO2006084890A3 Process for the preparation of a dicarboxylic acid
06/07/2007US20070129572 Absorbing acrylic acid-containing gas obtained by oxidizing raw material gas in gas phase as crude acrylic acid-containing solution, separating high boiling point components; purifying the acrylic acid-containing solution, decomposing Michael adducts
06/07/2007US20070129571 Process for producing (meth)acrylic acids
06/07/2007US20070129570 Method for producing acrylic acid
06/07/2007US20070129568 Ionic liquids
06/07/2007US20070129560 Process for producing a monoglyceride-containing composition
06/07/2007CA2631698A1 Intermediates and process for the preparation of aromatic derivatives of 1-adamantane
06/07/2007CA2631697A1 Process for the preparation of aromatic derivatives of 1-adamantane
06/06/2007EP1792888A1 Method for producing aminothiazole derivative and production intermediate
06/06/2007EP1791803A1 Method for the extractive purification of (meth)acrylic acid using a separating agent