| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 02/10/2011 | CA2769426A1 Process for preparing a hydroxyacid or hydroxyester |
| 02/10/2011 | CA2769424A1 Process for hydrogenation |
| 02/09/2011 | EP2281800A1 Method for manufacturing phthalic acid/phthalic acid hydride |
| 02/09/2011 | EP2281799A1 A process for producing purified terephthalic acid |
| 02/09/2011 | EP2280923A1 Production of ethylenically unsaturated acids or esters thereof |
| 02/09/2011 | EP2280922A1 Method for producing and purifying aqueous phases |
| 02/09/2011 | EP2280921A1 Method for starting a gas-phase oxidation reactor |
| 02/09/2011 | CN201735334U Membrane filtering device and water treatment system for citric acid production |
| 02/09/2011 | CN101970392A Methods of making cyclododecatriene and methods of making laurolactone |
| 02/09/2011 | CN101967093A Preparation method of fluorin-containing pyrethroid intermediate E-cis lambda-cyhalothric acid |
| 02/09/2011 | CN101967092A Method for synthesizing 2,6-dimethyl phenoxyacetic acid |
| 02/09/2011 | CN101967091A Method or purifying organic acid |
| 02/09/2011 | CN101967026A Energy-saving emission-reduction seawater comprehensive utilizing method |
| 02/09/2011 | CN101759551B Method for preparation of dodecafluoroheptanoic acid |
| 02/09/2011 | CN101362682B Method for producing formic acid with joint production of sodium phosphate by peroxyphosphoric acid and sodium formate |
| 02/09/2011 | CN101200556B Method for synthesizing PVC thermal stabilizer dicarboxylic acids rear earth salt and uses thereof |
| 02/08/2011 | US7884241 Mixture of hydrogen iodide and water; prevent condensation of hydrogen iodide; corrosion resistance |
| 02/08/2011 | US7884239 liquid-phase oxidation of an propylene, isobutylene, methacrolein or acrolein with molecular oxygen in the presence of a catalyst ( Pd supported on activated Carbon support with a total pore volume of 0.40 to 1.50 cc/g) to produce acrylic acid or methacrylic acid with high selectivity and productivity |
| 02/08/2011 | US7884238 Process for the long-term operation of a heterogeneously catalyzed partial gas phase oxidation of an organic starting compound |
| 02/08/2011 | US7884237 scrubbing light ends and aldehyde impurity from vent gas with an absorber solvent; stripping absorbed light ends and aldehyde impurity to provide a vent-recovered light ends stream, purifying the vent-recovered light ends stream to remove aldehyde impurity,recycling purified ligh ends; recylcing |
| 02/08/2011 | US7884236 Carbonylating methanol with carbon monoxide using an iridium carbonylation catalyst, methyl iodide cocatalyst, a finite concentration of water, acetic acid, methyl acetate and as promoters boron and gallium; by-product inhibition; reduced toxicity compared to a ruthenium promoted iridium catalyst |
| 02/08/2011 | US7884233 Enriched terephthalic acid composition |
| 02/08/2011 | US7884232 Optimized liquid-phase oxidation |
| 02/08/2011 | US7884231 oxidizing meta-xylene to form crude terephthalic acid, slurrying, crystallizing to form crystallized slurry, cooling, subjecting cooled crystallized slurry to a wash feed, and optionally an enrichment feed ( phthalic acid) to a catalyst removal zone to form a post catalyst removal composition |
| 02/08/2011 | CA2602380C Ring-brominated 2-methoxy-6-substituted benzoic acid derivatives for the preparation of fungicidal 2-methoxybenzophenones |
| 02/03/2011 | WO2011011882A1 Hydroxy fatty acid compounds and uses thereof for disease treatment and diagnosis |
| 02/03/2011 | US20110028760 Method for the reactive vaporization of glycerol |
| 02/03/2011 | US20110028759 Process for the Purification of Organic Acids |
| 02/03/2011 | US20110028758 Trans-cinnamic acid derivative, its preparation mathod and the use |
| 02/03/2011 | US20110028752 Novel bis(formylphenyl) compound and novel polynuclear polyphenol compound derived from the same |
| 02/03/2011 | US20110028746 Method for the decarboxylative hydroformylation of alpha, beta- unsaturated carboxylic acids |
| 02/03/2011 | US20110028740 Method for starting a gas phase oxidation reactor that contains a catalytically active silver-vanadium oxide bronze |
| 02/03/2011 | US20110028675 Cyclohexanone production process with multiple post-distillation |
| 02/03/2011 | US20110028664 Superabsorbent polymer made from acrylic acid |
| 02/03/2011 | US20110028551 Novel process for the preparation of sodium gamma-hydroxybutyrate |
| 02/03/2011 | CA2768086A1 Hydroxy fatty acid compounds and uses thereof for disease treatment and diagnosis |
| 02/02/2011 | EP2280062A2 Preparation of microbial polyunsaturated fatty acid containing oil from pasteurised biomass |
| 02/02/2011 | CN201728095U Chloroacetic acid production equipment |
| 02/02/2011 | CN1819986B Preparation of 1,3-diphenylprop-2-en-1-one derivatives |
| 02/02/2011 | CN101965327A Process of separation of glyoxylic acid from an aqueous reaction medium containing glyoxylic acid and hydrochloric acid |
| 02/02/2011 | CN101965326A Process of preparation of glyoxylic acid aqueous solution |
| 02/02/2011 | CN101962361A Maleic acid Trimipramine compound and new preparation method thereof |
| 02/02/2011 | CN101962322A Method for preparing veratric acid from trollius chinensis bunge |
| 02/02/2011 | CN101962321A Method for synthesizing veratric acid |
| 02/02/2011 | CN101962320A Method for preparing intermediate 1,2-dicarboxylicacid of antidiabetic medicine gliclazide |
| 02/02/2011 | CN101961633A Unsym-trimethyl benzene continuous oxidation reaction equipment |
| 02/02/2011 | CN101961632A Trimethyl benzene continuous oxidation reactor |
| 02/02/2011 | CN101961624A Method for the production of at least one organic target compound by means of heterogeneously catalyzed partial gas phase oxidation |
| 02/01/2011 | US7880039 Production of carbonyl fluoride |
| 02/01/2011 | US7880034 oxidation of propylene to acrolein and a second step comprising the oxidation of acrolein to acrylic acid, including a glycerol dehydration step preformed in the presence of a gas containing propylene and a catalyst selected from the group consisting of zirconium sulfate, zirconia-silica etc. renewable |
| 02/01/2011 | US7880033 hydrolyzing benzyl vinyl ether derivative in presence of an acid catalyst Lewis acid or H2SO4 thereby obtaining 3,3,3-trifluoropropionaldehy, oxidizing intermediate with HNO3 to produce 3,3,3-triluoropropionic acid; cost efficiency |
| 02/01/2011 | US7880032 for production of terephthalic acid, separation of oxidation byproducts into benzoic acid and non-benzoic acid oxidation byproducts; polyethylene terephthalate production; waste treatment |
| 02/01/2011 | US7880031 cooling/concentrating oxidation catalyst used in the preperation of terephthalic acid by oxidation of para-xylene, solvent extraction of concetrated mother liquor stream, washing to remove catalyst from solids isolated into produce wet cake stream; subjecting at wet cake stream to a mix zone |
| 02/01/2011 | US7880029 Use of polyalkenyl succinimides in acrylic acid production |
| 02/01/2011 | US7880027 ammoxidation of an alkane (propane) with oxygen, oxygen and ammonia, in the presence of an oxidation catalyst (mixed metal oxides) to yield unsaturated carboxylic acid or nitrile ( acrylic acid or acrylonitrile) ; impurity of S( SO2, H2S, mercaptans)is reduced by absorption (pressure swing abosroption) |
| 02/01/2011 | US7879197 Purification of aqueous solutions of organic acids |
| 02/01/2011 | CA2429268C 2-butyl-3-(4-[3(dibutylamino)propoxy]benzoyl)-5-nitro-benzofuranhydrochloride and its preparation |
| 01/28/2011 | CA2706205A1 Process for the purification of organic acids |
| 01/27/2011 | WO2011011137A1 Process for the preparation of keto acid esters useful as pvc plasticizers |
| 01/27/2011 | WO2011010036A1 Method for producing bioresourced acrylic acid from glycerol |
| 01/27/2011 | WO2011010035A1 Method for producing bioresourced acrylic acid from glycerol |
| 01/27/2011 | WO2011009726A1 Method for preparing a halogenocetyl fluoride and the derivatives thereof |
| 01/27/2011 | WO2011009657A2 Method for the production of decanecarboxylic acids |
| 01/27/2011 | US20110021817 Method and apparatus for carbonylating methanol with acetic acid enriched flash stream |
| 01/27/2011 | US20110021816 Acetic anhydride production by way of carbonylation with enhanced reaction and flashing |
| 01/27/2011 | US20110017348 Method of loading solid particles into a fixed-bed multitubular reactor |
| 01/27/2011 | DE102009027978A1 Verfahren zur Herstellung von Decancarbonsäuren A process for preparing Decancarbonsäuren |
| 01/27/2011 | CA2768604A1 Process for preparing decanecarboxylic acids |
| 01/26/2011 | EP2278014A2 Method for producing alcohol and carboxylic acid having optical activity |
| 01/26/2011 | EP2276720A2 Improved systems and processes for the production of isophthalic acid and terephthalic acid |
| 01/26/2011 | EP1311468B1 Fluorinated alkanoic acid purification process |
| 01/26/2011 | CN1942425B Liquid phase oxidation of p-xylene to terephthalic acid in the presence of a catalyst system containing nickel, manganese, and bromine atoms |
| 01/26/2011 | CN1938256B Method for recovering acrylic acid |
| 01/26/2011 | CN101955592A Method for preparing thermo-plastically reprocessed cross-linked halogenated butyl rubber |
| 01/26/2011 | CN101955470A Potentiators of glutamate receptors |
| 01/26/2011 | CN101955425A Process method for producing 2.4-D acid without wastewater |
| 01/26/2011 | CN101955424A Solvent recovery device of long-carbon-chain binary acid refining production process |
| 01/26/2011 | CN101955274A Method for controlling and recycling waste water containing acetic acid and chromium |
| 01/26/2011 | CN101954295A Catalyst system for methanol low-pressure carbonyl synthesis of acetic acid and application thereof |
| 01/26/2011 | CN101954198A High-pressure dehydrating tower in process of continuously producing trimellitate |
| 01/26/2011 | CN101265176B Method for purifying LiODFB |
| 01/26/2011 | CN101260036B Modified technique for refined unit in acrylic acid production device |
| 01/26/2011 | CN101142163B Method of producing unsaturated acid from olefin |
| 01/25/2011 | US7875153 Purification of aqueous solutions of organic acids |
| 01/25/2011 | CA2472776C Process for the manufacture of hmg-coa reductase inhibitors |
| 01/25/2011 | CA2405853C Process and catalyst for dehydrogenating primary alcohols to make carboxylic acid salts |
| 01/20/2011 | WO2011006965A1 Liquid lactic acid composition and method for preparation thereof |
| 01/20/2011 | US20110015436 Method for producing beta-mercapto carboxylic acids |
| 01/20/2011 | US20110015434 Method for producing dodeca-2,10-diene-1,12-dicarboxylic acid or 1,12-dodecane-dicarboxylic acid by way of ring-opening cross metathesis (rocm) of cyclooctene with acrylic acid |
| 01/19/2011 | EP2275415A2 Method for producing aminothiazole derivative and production intermediate |
| 01/19/2011 | EP2275400A1 Process for producing acrylic acid, and process for producing hydrophilic resin and process for producing water absorptive resin using the process |
| 01/19/2011 | EP2275399A1 Liquid lactic acid composition and method for preparation thereof |
| 01/19/2011 | EP2275398A1 Application of the iridium complex in asymmetric catalytic hydrogenation for unsaturated carboxylic acid |
| 01/19/2011 | EP2275395A2 Copper-catalyzed formation of carbon-carbon bonds |
| 01/19/2011 | EP2275204A1 Catalyst for producing acrolein and acrylic acid through glycerin dehydration and production method of same |
| 01/19/2011 | EP2274435A1 Recovery of organic acids |
| 01/19/2011 | EP2274313A1 Ruthenium complexes having (p-p)-coordinated disphosphorus donor ligands and processes for preparing them |
| 01/19/2011 | EP2274278A1 New process for the preparatiion of cyclohexanecarboxylic acid dericatives |
| 01/19/2011 | EP2274265A1 Method for starting a gas phase oxidation reactor that contains a catalytically active silver-vanadium oxide bronze |
| 01/19/2011 | EP2274264A1 New process for the preparation of cyclohexanecarboxylic acid derivatives via the corresponding cyclohexanecarboxamide derivative |