Patents
Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144)
02/2007
02/22/2007WO2007020379A1 Improved catalyst system
02/22/2007WO2007020267A1 Preparation of carboxylic acids
02/22/2007WO2007020024A1 Process for producing (meth)acrylic acid with treatment of the high-boiling fraction by crystallisation
02/22/2007WO2006134474A3 Method for the use of [11c] carbon monoxide in labeling synthesis of 11c-labelled acids by photo-induced free radical carbonylation under mild conditions using sulfoxides
02/22/2007US20070043239 free from recesses formed on an inner surface of a reactor body thereof so as to conduct a stable oxidation reaction therein; reaction production gas is prevented from being condensed and polymerized in the sampling tube, thereby ensuring a long-term stable analysis with a high efficiency
02/22/2007US20070043238 Process for production of (meth)acrylic acid of (meth)acrolein
02/22/2007US20070043035 Novel compounds and their use in medicine: process for their preparation and pharmaceutical compositions containing them
02/22/2007DE10010770C5 Nichtkatalytisches Verfahren zur Herstellung geradkettiger aliphatischer Carbonsäuren aus Aldehyden Non-catalytic process for preparing straight-chain aliphatic carboxylic acids from aldehydes
02/22/2007CA2618574A1 Improved catalyst system
02/22/2007CA2616107A1 Process for removal of benzoic acid from an oxidizer purge stream
02/22/2007CA2616024A1 Process for removal of benzoic acid from an oxidizer purge stream
02/21/2007EP1754739A1 Deuterated polyimides and derivatives thereof
02/21/2007EP1754697A1 Preparation of carboxylic acids
02/21/2007EP1753752A1 Highly selective novel amidation method
02/21/2007EP1680389B1 Method for purifying (meth)acrylic acid obtained by oxidizing a caseous substrate
02/21/2007EP1638911A4 Process for removal of acrolein from acrylonitrile product streams
02/21/2007EP1585719A4 Calcium salt saponification of polyunsaturated oils
02/21/2007EP1478614B1 Method for producing phthalic anhydride
02/21/2007CN1918107A Method of recovering fluorinated acid surfactants from adsorbent particles loaded therewith
02/21/2007CN1918106A Stereoselective synthesis of a 4,4-disubstituted cyclohexanepropanoic acid
02/21/2007CN1918105A Process for producing alpha,beta-unsaturated carboxylic acid
02/21/2007CN1918104A Process for producing an unsaturated carboxylic acid from an alkane
02/21/2007CN1918103A Method for producing 2,5-dimethylphenyl acetic acid
02/21/2007CN1917956A Catalyst for producing alpha, beta-unsaturated carboxylic acid and method for preparation thereof and method for producing alpha, beta-unsaturated carboxylic acid
02/21/2007CN1916179A Magnetic method for preprocessing flocculation of collected object for L - lactic fermentation liquid
02/21/2007CN1915960A Method for producing meta benzene tricarbonic acid through sequential oxidation by using intermittent multiple cascaded Bubbling oxidation towers
02/21/2007CN1915959A New method for synthesizing p-isopropyl benzoic acid
02/21/2007CN1915958A Method for producing 1,4 ¿C cyclohexane diformate by hydrogenation on benzene ring of terephthalic acid
02/21/2007CN1915957A Process for producing (meth)acrylic acid with treatment of the high-boiling fraction by crystallisation
02/21/2007CN1915956A Chemical method for synthesizing palmitoyl chloride
02/21/2007CN1915954A Method for producing formic acid through phosphoric acid and sodium formate
02/21/2007CN1915494A Catalyst for benzene ring hydrogenation of terephthalic acid or dimethyl terephthalate
02/21/2007CN1301244C Production method of (R)-3- hydroxy-3-(2-phenylethyl)hexanoic acid and intermediate thereof
02/21/2007CN1301243C Method for producing highly unsaturated fatty acid calcium salt
02/20/2007US7179939 Reacting ferric hydroxide, a sodium base and sodium gluconate, in an aqueous reaction mixture, isolating sodium ferric gluconate complex by adding to the aqueous reaction mixture a water-miscible organic solvent precipitating sodium ferric gluconate complex; free of excipients
02/20/2007US7179929 Method for producing conjugated linoleic acid glycerides
02/20/2007US7179875 Method for producing water-absorbent resins
02/20/2007CA2291445C Improved process for recovering hydrogen in producing pure terephthalic acid
02/20/2007CA2289482C Treatment of formaldehyde-containing mixtures
02/20/2007CA2268313C Process for the recovery of lactic acid by contacting aqueous solutions containing the same with a basic organic extractant
02/15/2007WO2007017720A1 Process for the preparation of acitretin
02/15/2007WO2007017431A1 Process for producing catalyst mouldings whose active mass is a multi-element oxide
02/15/2007WO2007017157A1 Supported gold catalyst
02/15/2007WO2007017018A1 Process for preparing racemic alkyl-5-halopent-4-enecarboxylic acids or -carboxylic esters
02/15/2007WO2006125113A3 A process to produce an enriched composition
02/15/2007US20070038004 first step of producing (meth)acrolein as a main product from reaction material selected from propylene, propane, isobutylene, t-butyl alcohol and methyl-t-butyl ether
02/15/2007US20070038003 Process for removal of benzoic acid from an oxidizer purge stream
02/15/2007US20070038002 Process for removal of benzoic acid from an oxidizer purge stream
02/15/2007US20070037999 Method for isolating a homogeneous catalyst containing rhodium
02/15/2007US20070037994 Method of preparing fatty acid monoesters
02/15/2007US20070037992 Method for the purification of crude diacerein by means of toluene
02/15/2007US20070036706 Process for reduction of carbon dioxide with organometallic complex
02/15/2007US20070034363 Shell-and-tube type heat exchanger and method for production of (meth) acrylic acid by use of the exchange
02/15/2007DE19852894B4 Verfahren zur Gewinnung von Phthalsäureanhydrid durch katalytische Gasphasenreaktion und Vorrichtung zur Durchführung des Verfahrens A process for the production of phthalic anhydride by catalytic gas-phase reaction, and apparatus for carrying out the method
02/14/2007EP1752437A1 Process for producing (meth)acrylic acid or (meth)acrolein
02/14/2007EP1751083A1 Use of polyalkenyl succinimides in acrylic acid production
02/14/2007EP1751082A2 Process for increasing throughput of corn for oil extraction
02/14/2007EP1750837A1 Method for the extended operation of a heterogeneous catalyzed gas phase partial oxidation of at least one organic compound
02/14/2007EP1670743B1 Production process of optically pure 2-(4-hydroxyphenoxy)-propionic acid compounds
02/14/2007CN1914146A Method for azeotropic distillation
02/14/2007CN1914145A Method for producing aromatic carboxylic acid
02/14/2007CN1914144A Method for producing (meth)acrylic acid
02/14/2007CN1911896A Process for producing chromone compound
02/14/2007CN1911895A Method of separating and purifying terephthalic acid
02/14/2007CN1911894A Separation method of hydroxy acetic acid
02/14/2007CN1911892A Production method of high purity niobium oxalate
02/14/2007CN1911881A Method of separating wool acid and lanonol from wool grease
02/14/2007CN1911509A Method for preparing unsaturated aldehyde, catalyst and method for synthesis
02/14/2007CN1300287C Engine oil comprising overbased salicylates based on styrenated salicylic acid
02/14/2007CN1300149C Dicopper(I)oxalate complexes for use as precursor substancesin metallic copper deposition
02/14/2007CN1300090C Process for preparing aryl acetic acid
02/14/2007CN1300089C Method of preparing adipic acid by cyclohexane oxidation liquid pickling water H2O2 catalytic oxidation
02/14/2007CN1300088C Method for recovering raw material, solvent and by-product generated in procedure of producing aromatic carboxylic acid
02/14/2007CN1300087C Thermal separating process between at least one gaseous and at least one liquid stream, of which at least one comprises (meth) acrylic monomers
02/14/2007CN1300086C Method for the alkylation of salicylic acid
02/14/2007CN1300085C Process for producing dicarboxylic acid
02/14/2007CN1300084C 2-methoxy diphenyl ketone compound intermediate and its preparation method
02/14/2007CN1299817C Oxidation reactor, method for producing (meth)acrylic acid or the like, and method for analyzing easily polymerizable compound
02/13/2007US7176335 Method for producing methacrolein from isobutane
02/13/2007US7176240 Such as 5-fluoro-2-propylpentanoic acid for improving GABA (gamma-aminobutyric acid) receptor responses; treatment of neurodegenerative diseases
02/13/2007CA2294147C Process for the production of methyl methacrylate
02/13/2007CA2225868C Iridium-catalysed carbonylation process for the production of acetic acid
02/08/2007WO2006125116A3 Esterification of an enriched composition
02/08/2007US20070032680 Heterogeneously catalyzed gas-phase partial oxidation of precursor compounds of (meth)acrylic acid
02/08/2007US20070032679 Calcining solution or slurry containing catalyst precursor comprising all the catalyst constituents; for use in producing methacrylic acid through gas-phase catalytic oxidation of methacrolein with molecular oxygen
02/08/2007DE102005037678A1 Preparing catalyst mold containing multi-element oxide, useful in heterogeneous catalyst gas phase reaction, comprises molding a fine particulate precursor mixture containing an additive and thermally treating the product
02/08/2007DE102005036890A1 Geträgerter Goldkatalysator Supported gold catalyst
02/07/2007EP1749813A1 Process for producing (meth)acrylic acid and (meth)acrylic ester
02/07/2007EP1749812A1 Polymerization inhibitor, composition containing the same and process for producing easily polymerizable compound with the polymerization inhibitor
02/07/2007EP1749811A1 Process for producing (meth)acrolein or (meth)acrylic acid
02/07/2007EP1749573A1 Process for producing composite oxide and composite oxide catalyst
02/07/2007EP1748976A1 Alkoxycarbonylation of vinyl esters
02/07/2007EP1748975A1 Method for the production of optically active 3-alkyl carboxylic acids and the intermediate products thereof
02/07/2007CN1910139A Ibopamine maleate, method for preparing it and pharmaceutical compositions containing it
02/07/2007CN1910138A L-(-)-moprolol l-(+)-tartrate
02/07/2007CN1910130A Process for production of a dried carboxylic acid cake suitable for use in polyester production
02/07/2007CN1910129A Process for production of a carboxylic acid/diol mixture suitable for use in polyester production
02/07/2007CN1910128A Method for producing acrylic acid
02/07/2007CN1910127A Carboxylation of aromatic hydrocarbons to produce aromatic carboxylic acids
02/07/2007CN1907941A Method of treating hexane diacid preparation waste liquid