Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
07/2009
07/01/2009CN100506778C Crystal pelleting and purifying method of aromatic carboxylic acid products
07/01/2009CN100506767C Catalyst for synthesizing unsaturated aldehyde and its preparing method, and process for preparing unsaturated aldehyde
07/01/2009CN100506759C Method for preparing at least one organic compound through non-uniform-phase catalysing partial gas-phase oxidation
06/2009
06/30/2009US7553991 Process for producing carboxylic acid anhydrides
06/30/2009US7553986 Process for the selective (amm)oxidation of lower molecular weight alkanes and alkenes
06/30/2009US7553794 for isomerization, oxidation, hydration, dehydrogenation, esterification, acylation, and alkylation; diffuse silicotungstic acid, phosphotungstic acid, phosphomolybdic acid, silicomolybdic acid on surface of silica and extended toward center; catalytic synthesizing acetic acid from ethylene and oxygen
06/25/2009WO2009078965A1 An improved process to prepare treprostinil, the active ingredient in remodulin®
06/25/2009WO2009077745A1 Carbonylation process with in situ regeneration of mordenite catalyst
06/25/2009WO2009077739A1 Regeneration of zeolite carbonylation catalysts
06/25/2009WO2009077590A1 Method for producing 2,2-dichlorocyclopropane carboxylic acid esters
06/25/2009WO2009077383A1 Method for preparing optionally substituted p-hydroxymandelic compounds and derivatives thereof
06/25/2009US20090163738 Process to prepare treprostinil, the active ingredient in remodulin
06/25/2009US20090163737 Novel process for the preparation of chiral compounds derived from hexanoic acid esters and intermediates used in the synthesis of chiral 2-(bromomethyl)-2-ethylhexanoic acid
06/25/2009US20090163731 Biodiesel Production Method
06/25/2009US20090163724 Carbonylation of Ethylenically Unsaturated Compounds
06/25/2009CA2710205A1 An improved process to prepare treprostinil, the active ingredient in remodulin
06/24/2009EP2072125A1 Ion exchanged mordenite carbonylation catalyst
06/24/2009EP2072124A1 Regeneration of zeolite carbonylation catalysts
06/24/2009EP2072123A1 Regeneration of zeolite carbonylation catalysts
06/24/2009EP1979303B1 Process for the production of acetic acid
06/24/2009EP1758846B1 Process for removal of impurities from mother liquor in the synthesis of carboxylic acid using pressure filtration
06/24/2009EP1311467B1 Method for producing phthalic anhydride
06/24/2009CN101466659A Production of acetic acid and mixtures of acetic acid and acetic anhydride
06/24/2009CN101462939A Preparation of trans substitute cyclohexane-carboxylic acid and trans/trans bicyclohexanedicarboxylic acid
06/24/2009CN101462938A Method for preparing mixed fatty acid from hogwash oil and use method of mixed fatty acid
06/24/2009CN100503546C Method for purifying terephthalic acid from waste material
06/24/2009CN100503545C Gas phase oxidation catalyst with defined vanadium oxide particle size distribution
06/23/2009US7550627 Processes for producing aromatic dicarboxylic acids
06/23/2009US7550615 Contacting with steam; forming thin film; reduced odor; color efficiency; demetallization
06/23/2009US7550507 2-(alpha-hydroxypentyl) benzoate and its preparation and use
06/23/2009US7550504 In particular, butyrates and formates of divalent metals, as well as their carboxylate-aminoate or carboxylate-methioninate hydroxy analog derivatives of divalent metals; use as trace metal supplements in animal feed; increasing bioavailability of metals, therefore reducing their emission to environment
06/23/2009US7549341 Method of maintaining a multitubular reactor
06/23/2009CA2306525C Method for purification of polyprenyl compounds
06/18/2009WO2009074574A1 Method for producing isopropanol and 2-butanol from the corresponding alkanes
06/18/2009WO2009074321A1 Rapid activation of surfactant precursor
06/18/2009WO2009073947A1 ORGANIC SALTS OF β-ALANINE
06/18/2009WO2009073943A1 Preparations containing pyridoxine and alpha-hydroxyisocaproic acid (hica)
06/18/2009US20090156860 Catalyst for producing alpha, beta-unsaturated carboxylic acid and method for preparation thereof, and method for producing alpha, beta-unsaturated carboxylic acid
06/18/2009US20090156859 Control of impurities in product glacial acetic acid of rhodium-catalyzed methanol carbonylation
06/18/2009US20090156858 Process For Production of 5-Phenylisophthalic Acid
06/18/2009US20090156849 Catalyst for Asymmetric Synthesis, Ligand for Use Therein, and Process for Producing Optically Active Compound through Asymmetric Synthesis Reaction Using Them
06/18/2009US20090156847 Such as animal fat triglycerides, using an adsorbent, as well as phenolic resin, a metal-containing resin or hydrous metal oxide, and cation exchange resin(s)
06/18/2009US20090156844 Method for producing stabilized biodiesel fuel
06/18/2009US20090156841 Conversion of carbohydrates to hydroxymethylfurfural (hmf) and derivatives
06/18/2009US20090156839 chemical intermediates; 2-chloromethyl-5,5-dimethyl-2-(2,5-dimethylphenyl)-[1,3]dioxane
06/18/2009US20090156834 Process for making 2,2-bis (3,4-dicarboxyphenyl) hexafluoropropane
06/18/2009US20090156767 Substituted pyridine ligands and related water-soluble catalysts
06/18/2009US20090155391 Hydroxycitric acid salt composition and method of use for reducing body weight
06/17/2009EP2070900A2 Method for producing isopropanol and 2-butanol from the corresponding alkanes
06/17/2009EP2069281A1 Purification of acetic acid
06/17/2009EP2069280A2 Process and intermediates for preparing integrase inhibitors
06/17/2009EP1648852B1 Method for producing substituted arylcarboxylic acid chlorides
06/17/2009EP1303471B1 Preparation of shell impregnated catalyst and its use for production of vinyl acetate
06/17/2009CN101460442A Method of replacing dispersion medium
06/17/2009CN101456806A Method for preparing bismuth carboxylate
06/17/2009CN101456805A Synthetic method of cobalt naphthenate
06/17/2009CN101456804A Method for preparing semi-aromatic nylon salt
06/17/2009CN100500634C Sodium butyrate-containing chemical product production technology
06/17/2009CN100500633C Acetoxy acetyl chloride chemical synthesizing method
06/17/2009CN100500632C Method of preparing linolenic acid and linolenic acid lower member ester by urea column chromatography
06/17/2009CN100500631C Process of preparing 3-trifluoromethyl benzoic acid
06/16/2009US7547803 Process for producing a high purity aromatic polycarboxylic acid
06/16/2009US7547686 Combretastatin A-3 prodrug
06/16/2009US7547655 V-P-Si composite oxide catalyst precursor used for producing maleic anhydride from butance
06/16/2009US7547539 Reaction apparatus for organic and/or other substances employing supercritical fluid or subcritical fluid
06/16/2009US7546747 Process for production of a dried carboxylic acid cake suitable for use in polyester production
06/11/2009WO2009048553A3 Process for the ammoxidation or oxidation of propane and isobutane
06/11/2009WO2004063312A3 Production of organic acid and ammonium nitrate
06/11/2009US20090149562 Purification of a distilled bottom product containing (meth)acrylic acid by means of a crystallization process
06/10/2009EP2067764A1 Process for the preparation of pure acitretin
06/10/2009EP2067512A2 High capacity purification of thermally unstable compounds
06/10/2009EP2066614A1 Method for removing iodide compound from organic acid
06/10/2009EP2066613A2 Process for producing acrylic acid
06/10/2009EP2066612A1 A process to produce an enrichment feed
06/10/2009EP2066611A1 Process for preparing acrylic acid purified by crystallization from hydroxypropionic acid and apparatus therefor
06/10/2009EP2066610A1 Manufacture of substantially pure monochloroacetic acid
06/10/2009EP1599436B1 Method of preparing alpha, beta-difluoroacrylic compounds
06/10/2009CN101450907A Processes for the preparation of glutamic acid compounds and intermediates thereof and novel intermediates used in the processes
06/10/2009CN100497287C Use of rare earth compound in acyl chloride reaction
06/10/2009CN100496693C Method for the production of particles
06/09/2009US7544836 Process for producing (meth)acrolein or (meth)acrylic acid
06/09/2009US7544823 sunflower plants (Helianthus annus L.) which, being self-fertilised, produce seeds displaying a high delta-tocopherol content in sunflower oil; all natural without extranal addition; inheritable character; genetically enginereed; antioxidant, contains phytonutrients, also used as biofuel and lubricant
06/09/2009US7544822 Recovery of phytonutrients from oils
06/09/2009US7544633 Catalyst for partial oxidation and preparation method thereof
06/09/2009CA2281352C A method of controlling carbon monoxide flow in a continuous acetic acid production
06/04/2009WO2009069750A1 Processes for production of fluorine-containing compounds
06/04/2009WO2009045637A9 Methods for the synthesis of acrylic acid and derivatives from fumaric acid
06/04/2009US20090143619 Process for the production of phosgene with reduced co emission
06/04/2009US20090143618 Method for the production of formic acid formates
06/04/2009US20090143595 Use of grinding in chemical synthesis
06/04/2009US20090143544 Having an unsaturated fatty acid or fatty ester; metathesis of the feedstock with a lower olefin; the resulting vinyl ester monomer may be epoxidized, hydroformylated or reductively aminated before oligomerization or polymerization to produce omega-epoxy, hydroxy, or amino vinyl esters
06/04/2009US20090142470 Process for the hydrogenation of unsaturated triglycerides
06/03/2009CN101448773A Metal complexes for use in the carbonylation of ethylenically unsaturated compounds
06/03/2009CN100494156C Process for manufacturing (meth)acrylic acid with reduced water content
06/03/2009CN100494155C Process for producing (meth) acrylic acids
06/03/2009CN100494154C Method for distilling (meth)acrylic acid and/or the ester thereof
06/03/2009CN100494153C Extraction separation technology of octagonal shickimmi oxalic acid
06/03/2009CN100494152C Separating device for methyl acetate hydrolysis product and method
06/03/2009CN100494151C Method for synthesizing crotonic acid by selectively oxidizing croton aldehyde
06/02/2009US7541491 Gene involved in growth-promoting function of acetic acid bacteria and uses thereof