| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 02/13/2008 | CN100368370C Recovery system of suspended substance in para dimethyl benzene oxidation mother liquor |
| 02/13/2008 | CN100368369C Method for reducing temperature of high temperature slurry to vacuum filtering system feeding temperature in refined terephthalic acid production process |
| 02/13/2008 | CN100368058C Method and device for global warming prevention |
| 02/12/2008 | US7329778 Oxidation catalyst for forming acid salt from alcohol |
| 02/12/2008 | CA2279892C Method of recovery of terephthalic acid and ethylene glycol from poly/ethylene terephthalate/wastes |
| 02/07/2008 | WO2008016502A2 Preparation of acetic acid |
| 02/07/2008 | WO2008016400A1 Removing permanganate-reducing impurities from acetic acid |
| 02/07/2008 | WO2008016154A1 Method for production of microparticle, and method for production of indium organocarboxylate |
| 02/07/2008 | WO2008015885A1 Method for purifying hydroxycarboxylic acid, method for producing cyclic ester, and method for producing polyhydroxycarboxylic acid |
| 02/07/2008 | WO2008015135A2 Process for regenerating ruthenium catalysts for the ring hydrogenation of phthalates |
| 02/07/2008 | WO2008015103A2 Process for regenerating ruthenium catalysts which are suitable for hydrogenation |
| 02/07/2008 | US20080033206 Reacting methanol and carbon monoxide with carbonylation catalyst, stabilizer, methyl iodide, water and methyl acetate; flashing to form vapor and liquid streams; distilling and condensing vapor stream; reacting heavy phase containing aldehyde with an alcohol, glycol or glycerine to form an acetal |
| 02/07/2008 | US20080033205 Method of oxidization using nitric acid |
| 02/07/2008 | US20080033192 Process for the Production of Esters from Vegetal Oils or Animal Fats |
| 02/07/2008 | US20080033191 Process for producing glycerol having low aldehyde and ketone content and improved storage stability |
| 02/07/2008 | US20080031788 Process for converting a hydrocarbon to an oxygenate or a nitrile |
| 02/07/2008 | DE112005003520T5 Verfahren zur Herstellung von p-Toluolsäure durch Flüssigphasenoxidation von p-Xylol in Wasser A process for the preparation of p-toluic acid by liquid phase oxidation of p-xylene in water |
| 02/06/2008 | EP1883617A1 Process for the preparation of iridium acetate |
| 02/06/2008 | EP1883616A1 A process for continuous carbonylation by supported ionic liquid-phase catalysis |
| 02/06/2008 | CN101120010A Metallocene-based phosphorus chiral phosphines |
| 02/06/2008 | CN101119960A Process for obtaining enantiomers of chrysanthemic acid |
| 02/06/2008 | CN101119959A Process for recovering organic compounds contained in (meth) acrylic acid-containing mixtures by extraction with a protic solvent |
| 02/06/2008 | CN101117316A Oral liquid for preventing and remitting diabetes |
| 02/06/2008 | CN101117315A Production method of lemon acid |
| 02/06/2008 | CN101117314A Production method of sodium citrate |
| 02/06/2008 | CN101117313A High-performance energy-saving process for synthesizing formiate solution |
| 02/06/2008 | CN101117312A Method for producing calcium stearate by non-discharge one-step synthesis process |
| 02/05/2008 | US7326811 Method for production of (meth)acrylic acid by use of a shell-and-tube heat exchanger |
| 02/05/2008 | US7326810 Method for starting up reactor |
| 02/05/2008 | US7326808 Polycarboxylic acid production system employing cooled mother liquor from oxidative digestion as feed to impurity purge system |
| 02/05/2008 | US7326802 Dehydrogenation of propane forming propylene; vapor phase oxidation using mixed oxide catalyst |
| 02/05/2008 | US7326668 Using crystal structured mixed metal oxides as catalysts for the oxidation of alkanes, or mixture of alkanes and alkenes, to their corresponding unsaturated carboxylic acids |
| 02/05/2008 | US7326389 Fixed-bed catalytic partial oxidation in a shell-and-tube heat exchange type reactor |
| 02/05/2008 | US7326323 High capacity purification of thermally unstable compounds |
| 01/31/2008 | WO2008013100A1 Method of replacing dispersion medium |
| 01/31/2008 | WO2008012118A1 Process for alkaline hydrolysis of carboxylic acid derivatives to carboxylic acids |
| 01/31/2008 | WO2008011763A1 A curing agent for powder coating and the preparation method of the long chain dicarboxylic acid polyanhydride used in said powder coating |
| 01/31/2008 | WO2008011651A1 Method for the production of lactic acid or a salt thereof |
| 01/31/2008 | WO2007133377A8 Process for driving gas blowers or fans in a solid-state polymerization process using steam from a terephthalic acid plant |
| 01/31/2008 | US20080027244 Method for Manufacturing Aromatic Dicarboxylic Acid |
| 01/31/2008 | US20080027243 Versatile oxidation byproduct purge process |
| 01/31/2008 | US20080027238 Process for producing concentrate of conjugated fatty acid |
| 01/31/2008 | US20080027236 Acid-catalyzed dehydration of fructose in 1-methyl-2-pyrrolidinone, dimethylacetamide, or dimethylformamide with a catalyst; end-capped polyethylene glycol eliminates the formation of undesirable PEG-HMF ethers |
| 01/31/2008 | US20080026080 Reacting a gluconic acid with lactic acid in the presence of calcium hydroxide and water to obtain a calcium gluconolactate molecule having the formula HO-CH2-(CHOH)4-COO-Ca-OOC-CH(-OH)-CH3 with molecular weight of 324.2994; physical and chemical properties; nutraceuticals |
| 01/31/2008 | US20080025887 Process and apparatus for the efficient oxidation of alkyl aromatic compounds |
| 01/31/2008 | US20080025879 A multitubular apparatus and a control system, are provided for controlling temperature change of a heat medium in the reaction apparatus, and quickly adjusting fluctuation in temperature, to control properly a reaction, such as producing (meth)acrylic acid; stabilization |
| 01/31/2008 | DE102006035029A1 Verfahren zur alkalischen Hydrolyse von Carbonsäurederivaten zu Carbonsäuren Process for the alkaline hydrolysis of carboxylic acid derivatives to carboxylic acids |
| 01/31/2008 | CA2659333A1 Process for alkaline hydrolysis of carboxylic acid derivatives to carboxylic acids |
| 01/30/2008 | EP1882672A1 Method for producing deuterium gas and catalytic deuteration method using deuterium gas obtained thereby |
| 01/30/2008 | EP1881953A2 A process to produce an enriched composition |
| 01/30/2008 | EP1881952A1 Method for the production of at least one final product by partial oxidation and/or ammoxidation of propylene |
| 01/30/2008 | EP1881949A1 Process for the conversion of synthesis gas to oxygenates |
| 01/30/2008 | CN101116039A Method of controlling acetic acid process |
| 01/30/2008 | CN101115705A Process for purification of aromatic carboxylic acids |
| 01/30/2008 | CN101115555A Catalyst and process for preparing aromatic carboxylic acids |
| 01/30/2008 | CN101113134A Triterpenes anti-neoplastic compound in cambric asterism sponge and method for preparing the same |
| 01/30/2008 | CN101113133A Method for extracting carnosic acid |
| 01/30/2008 | CN101112690A Catalyzer for preparing glutaraldehyde by the catalytic oxidation of cyclopentene |
| 01/30/2008 | CN100365109C Method for purifying marine mammal oil enriched in omega 3 fatty acids and compositions comprising same |
| 01/30/2008 | CN100364952C Process for hydrothermal synthesizing bismuth citrate |
| 01/30/2008 | CN100364951C Sodium Diacetate production method |
| 01/30/2008 | CN100364949C (Meth)acrolein and/or (meth)acrylic acid production |
| 01/30/2008 | CN100364948C Operation of a continuous heterogeneously catalyzed gas phase partial oxidation of at least one organic compound |
| 01/30/2008 | CN100364665C Process for producing composite oxide catalyst |
| 01/30/2008 | CN100364633C Method for separating and utilizing MeTHPA production waste liquid |
| 01/29/2008 | US7323608 Copper-catalyzed formation of carbon-heteroatom and carbon-carbon bonds |
| 01/29/2008 | US7323593 Method and device for producing formates and the use thereof |
| 01/29/2008 | US7323592 Methods for crystallization of hydroxycarboxylic acids |
| 01/29/2008 | US7323587 Selective estrogen receptor modulators |
| 01/29/2008 | US7323508 Neutral carbonated alkaline earth metal carboxylates |
| 01/29/2008 | US7323201 Highly soluble form of tricalcium citrate, and methods of its making and use |
| 01/29/2008 | US7323016 Comprises optical line detector/camera |
| 01/29/2008 | CA2345011C Carbonylation of methanol in the presence of a rhodium/iridium/iodide ion catalytic system |
| 01/29/2008 | CA2280503C Treatment of effluent streams containing organic acids |
| 01/24/2008 | WO2008010373A1 A process for producing succinic acid |
| 01/24/2008 | WO2008009648A1 Process for preparing isopropanol and 2-butanol from the corresponding alkanes |
| 01/24/2008 | WO2007139679A3 A process for energy recovery and water removal in the preparation of aromatic carboxylic acids |
| 01/24/2008 | US20080021243 Method For Producing Carbonyl Difluoride |
| 01/24/2008 | US20080021241 Process for production of methacrylic acid |
| 01/24/2008 | US20080021239 Process for Producing (Meth)Acrylic Acid or (Meth)Acrolein |
| 01/24/2008 | US20080021238 Apparatus For (Meth) Acrylic Acid Production And Process For Producing (Meth) Acrylic Acid |
| 01/24/2008 | US20080021237 Catalysts Based on Metal Complexes for the Synthesis of Optically Active Chrysanthemic Acid |
| 01/24/2008 | US20080021232 Recyclable transesterification catalyst or transesterification catalyst comprising a stable high surface area composite matrix of mesoporous silicate and alkaline earth metal oxide moieties; making fatty acid methyl esters (FAME) from soybean oil |
| 01/24/2008 | US20080021225 Process for the synthesis of peptides containing a 4-hydroxy-proline substructure |
| 01/24/2008 | US20080020963 11-Methyl-13-Tridecanolide, 12-Methyl-14-Tetradecanolide And 13-Methyl-15-Pentadecanolide, Perfume Compositions Containing The Same, And Process For Production Of Compounds Including The Same |
| 01/24/2008 | CA2657739A1 Process for preparing isopropanol and 2-butanol from the corresponding alkanes |
| 01/23/2008 | EP1880761A1 Method for preparing catalyst for production of methacrylic acid |
| 01/23/2008 | EP1880758A1 A method for gas-phase catalytic oxidation using a fixed bed reactor |
| 01/23/2008 | EP1880757A1 A reactor for gas-phase catalytic oxidation and a process for producing acrylic acid using it |
| 01/23/2008 | EP1879846A1 Process for separating by rectification a liquid which contains an acrylic acid and/or a methacrylic acid |
| 01/23/2008 | EP1879845A1 Process for the production of acetic acid |
| 01/23/2008 | EP1879844A1 Production of sodium diformate |
| 01/23/2008 | EP1879843A1 Acetic acid production methods incorporating at least one metal salt as a catalyst stabilizer |
| 01/23/2008 | CN101111466A Layered double hydroxide peelable in water, and production process and use thereof |
| 01/23/2008 | CN101111454A Method for producing deuterium gas and catalytic deuteration method using deuterium gas obtained thereby |
| 01/23/2008 | CN101111312A Process for preparing aromatic carboxylic acids |
| 01/23/2008 | CN101108928A Powder paint solidifying agent and method of manufacturing used long chain carbon polyanhydride |
| 01/23/2008 | CN101108798A Device and method for producing acrylic acid with a reduced autoxidation tendency |
| 01/23/2008 | CN101108797A Technique of manufacturing trifluoro acetic anhydride |
| 01/23/2008 | CN101108796A Method of preparing calcium propionate and application thereof |