| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 03/25/2004 | US20040059150 Reduced odor esters and process for producing same |
| 03/25/2004 | US20040058998 Alcoholate catalytic rearrangement of sunflower, safflower or corn oil; saponifying and mild acid washing; high purity and acid value |
| 03/25/2004 | DE10206619B4 Verfahren zur Herstellung von Alkincarbonsäuren und Alkincarbonsäure-Alkinalkoholestern durch Oxidation von Alkinalkoholen A process for preparing alkyne carboxylic acids and alkynecarboxylic acid-Alkinalkoholestern by oxidation of alkyne alcohols |
| 03/24/2004 | EP1400581A1 Electrorheological fluids |
| 03/24/2004 | EP1399407A1 Process for production of aromatic carboxylic acids with improved water removal technique |
| 03/24/2004 | EP1399402A1 Intermediate halophenyl derivatives and their use in a process for preparing azole derivatives |
| 03/24/2004 | EP1399254A1 Tungsten promoted catalyst for carbonylation of lower alkyl alcohols |
| 03/24/2004 | EP1399138A1 Method for the production of solid formulations of sodium 3-hydroxy-3-methylbutyrate |
| 03/24/2004 | EP1153009B1 Method for carbonylation of lower aliphatic alcohols |
| 03/24/2004 | CN1484628A Heterogenically catalysed gas-phase partial oxidation for precursor compounds of (meth) acrylic acid |
| 03/24/2004 | CN1483727A Halogenationg agent |
| 03/24/2004 | CN1483716A Stibene derivative organic amine salt, its preparation method, use and medicinal composition |
| 03/24/2004 | CN1483715A Process for preparation of 3, 3-dimethyl-2-oxo-butyric acid |
| 03/24/2004 | CN1483714A Method for producing fatty acid |
| 03/24/2004 | CN1142925C Method of preparation of maleic anhydride |
| 03/24/2004 | CN1142900C Technology for producing aromatic carboxylic acid |
| 03/24/2004 | CN1142824C Catalyst for producing unsaturated aldehyde and unsaturated carboxylic acid and its use |
| 03/24/2004 | CN1142823C Catalyst for oxidizing reaction |
| 03/23/2004 | US6710207 Catalytic oxidation of mixtures of alkenes and alkanes in presence of mixed metal oxide containing molybdenum or tungsten |
| 03/23/2004 | US6710206 Poly(3-cyclopropyl-3-hydroxypropionate) and processes for its preparation and derivatives thereof |
| 03/23/2004 | US6710187 Extracting a bisimide/anhydride using exchange catalyst; water removal; discoloration inhibition |
| 03/23/2004 | US6710002 Method for regenerating a zeolitic catalyst |
| 03/23/2004 | CA2252435C Branched surfactant manufacture |
| 03/23/2004 | CA2152816C The catalytic decomposition of dinitrogen monoxide which is pure or present in gas mixtures |
| 03/18/2004 | WO2004022520A1 Method for producing phthalic acid dichloride |
| 03/18/2004 | WO2004022519A1 Method for processing (meth)acrylic acid and (meth)acrylic esters |
| 03/18/2004 | WO2004022518A1 Process for producing (meth)acrylic acid compound |
| 03/18/2004 | WO2004022517A1 Method and device for producing formates and the use thereof |
| 03/18/2004 | US20040054246 Using acidic ion exchnage resin |
| 03/18/2004 | US20040054226 Alkylation of malonic ester, malononitrile; using carbonate and phase transfer agent |
| 03/18/2004 | US20040054223 Vapor phase of propylene to (meth)acrylic acid, (meth)acrolein; using composite oxide catalyst |
| 03/18/2004 | US20040054222 Heterogenically catalysed gas-phase partial oxidation method for precursor compounds of (meth)acrylic acid |
| 03/18/2004 | US20040054221 Using composite mixed oxide oxidation catalyst |
| 03/18/2004 | US20040054220 Method for producing cyclohexane dicarboxylic acids and the derivatives thereof |
| 03/18/2004 | US20040054219 Oxidation of pseudocumene; using catalyst; continuous processing; separation of by-products |
| 03/18/2004 | US20040054205 Method of producing branched fatty substances |
| 03/18/2004 | US20040053795 Reacting a metal base with fatty acids in the presence of liquid hydrocarbon and aliphatic alcohols and carbonating with carbon dioxide; controlling by continuous or incremental addition of the metal base; phenol-free; filterable |
| 03/18/2004 | US20040053789 Anionic and cationic surfactants having branched aliphatic chains used as reversible well bore fluid thickeners to recover hydrocarbon oil and gas; soluble in both organic and aqueous fluids; high speed breakdown of viscoelastic sols |
| 03/18/2004 | US20040051076 Mixture of composite particles and dielectric, hydrophobic fluid |
| 03/18/2004 | US20040050681 Polymerization inhibition effected during distillation of (meth)acrylic acid/ester by using a column equipped with a heat exchanger; setting a linear gas velocity in the line connecting of 5 m/sec and retention time of <3 sec |
| 03/18/2004 | US20040050679 Method for producing (meth) acrylic acid |
| 03/18/2004 | DE10242746A1 Washing column for the continuous separation by crystallizing, of multi-component materials, has successive zones to filter and wash and melt the materials |
| 03/18/2004 | CA2495369A1 Method and device for producing formates and the use thereof |
| 03/17/2004 | EP1398308A1 Process for the preparation of 3,3-dimethyl-2-oxo-butyric acid |
| 03/17/2004 | EP1398307A1 Process for producing trimellitic acid |
| 03/17/2004 | EP1397338A1 Vapor-phase carbonylation of lower alkyl alcohols using tungsten promoted group viii catalyst |
| 03/17/2004 | EP1397337A1 Vapor-phase carbonylation of lower aliphatic alcohols using tin promoted iridium catalyst |
| 03/17/2004 | EP1397336A2 Preparation of polyaryl carboxylic acids |
| 03/17/2004 | EP1397335A1 Resolution process for (r)-(-)-2-hydroxy-2-(2-chlorophenyl)acetic acid |
| 03/17/2004 | EP1397334A1 Method for carbonylation of lower aliphatic alcohols using tin promted platinum catalyst |
| 03/17/2004 | EP1397207A1 Tin promoted iridium catalyst for carbonylation of lower alkyl alcohols |
| 03/17/2004 | EP1397206A1 Tin promoted platinum catalyst for carbonylation of lower alkyl alcohols |
| 03/17/2004 | EP1313554B1 Process and device for carrying out reactions in a reactor with slot-shaped reaction spaces |
| 03/17/2004 | EP1212276B1 Sulfur containing promoter for alkanes oxidative dehydrogenation processes |
| 03/17/2004 | EP1196369B1 Method for making adipic acid |
| 03/17/2004 | CN1483043A Chitosan-containing multicomponent composition and process for preparing the same |
| 03/17/2004 | CN1483014A Method for producing methacrylic acid |
| 03/17/2004 | CN1142107C Process for treating waste liquid of furaldehyde and recovering butyl acetate, ammonium sulfate, ammonium acetate, acetamide and acetonitrile |
| 03/16/2004 | US6706932 Process for the preparation of diol mixtures |
| 03/16/2004 | US6706918 3-cyano-2,4,5-trifluoro-benzoyl fluoride and intermediate products for the production thereof |
| 03/16/2004 | US6706917 Decyclization and deesterification of 5,6-dihydro-2(4h)-benzofuranone in presence of organic acid metal salt catalyst |
| 03/16/2004 | US6706914 Rhodium containing solutions |
| 03/16/2004 | US6706912 Carbon monoxide reacted with alcohol in presence of catalyst system comprising palladium cations, bidentate diphosphine, and anions derived from sulfonic acid, in apriotic solvent (anisole) |
| 03/16/2004 | US6706897 Method for preparing oxydiphthalic anhydrides using guanidinium salt as catalyst |
| 03/16/2004 | US6706662 Catalyst for dehydrogenating primary alcohols to make carboxylic acid salts |
| 03/16/2004 | US6706658 Porous active carbon catalyst support |
| 03/16/2004 | US6706193 Method for recovering fluorinated emulsifiers from aqueous phases |
| 03/11/2004 | WO2004020382A1 Method and device for producing formic acid formates and use of said formates |
| 03/11/2004 | WO2004020083A1 Oxidation method |
| 03/11/2004 | WO2004020076A1 Separator, reactor, and process for producing aromatic carboxylic acid |
| 03/11/2004 | US20040049077 Crystallization to obtain a mother liquor and crystals, which are washed at 15-40 degrees C. |
| 03/11/2004 | US20040049076 From 1,1,1-trifluoro-3,3-dihaloacetone; acid may be esterified and ester product reduced to form 3,3,3-trifluoro-1,2-propylene glycol |
| 03/11/2004 | US20040049073 Method for cleaning crude terephthalic acid and catalysts suitable for the same and containing carbon fibres |
| 03/11/2004 | US20040049067 Process for the enantioselective synthesis of propargyl alcohol derivatives of R configuration from the racemic mixtures thereof |
| 03/11/2004 | US20040049062 High triglyceride content and high oxidative stability. |
| 03/11/2004 | US20040046270 Quenching of a hot gas mixture comprising (meth) acrylic acid |
| 03/11/2004 | DE10240816A1 Oxidationsverfahren Oxidation process |
| 03/11/2004 | DE10240781A1 Production of dicarboxylic acid, e.g. adipic acid, from acrylic acid involves reacting a diester of the diacid with acrylic acid, separating acrylate esters from the product, dimerizing acrylate esters and converting into diacid |
| 03/11/2004 | DE10240261A1 Production of aryllithium-electrophile reaction products of interest for the pharmaceutical and agrochemical industries comprises using an organolithium compound prepared by reacting an aryl halide with lithium |
| 03/11/2004 | DE10240255A1 Verfahren zur Herstellung von cis-Alkenen und neue Katalysatoren hierfür A process for preparing cis-alkenes and new catalysts for this purpose |
| 03/11/2004 | DE10238142A1 Verfahren zur Aufarbeitung von (Meth)acrylsäure und (Meth)acrylsäureestern A process for the work-up of (meth) acrylic acid and acrylic acid esters, (meth) |
| 03/11/2004 | CA2495340A1 Method and device for producing formic acid formates and use of said formates |
| 03/10/2004 | EP1396484A1 Method for preventing polymerization in an acrylic acid manufacturing process |
| 03/10/2004 | EP1395543A1 Process for the production of purified terephthalic acid |
| 03/10/2004 | EP1395265A2 Combretastatin a-3 prodrug |
| 03/10/2004 | CN1481277A Alkane oxidation catalyst, process for producing same, and process for producting oxygen-contg unsaturated compound |
| 03/10/2004 | CN1480447A Technique for brewing tannin by purifying extractive of gallnut |
| 03/10/2004 | CN1480446A Technique for producing gallic acid by direct acid hydrolysis of gallnut |
| 03/10/2004 | CN1480445A Method for preparing dexiotropous antifoim dichlor chrysanthemic acid in high optical purity through method of induced crystallization |
| 03/10/2004 | CN1480444A Method for producing dehydraed yoghurt |
| 03/10/2004 | CN1480443A Prepn. process for fined acroleic acid |
| 03/10/2004 | CN1480442A Process for producing acroleic acid |
| 03/10/2004 | CN1480441A Process for producing acroleic acid |
| 03/10/2004 | CN1480440A Technique for producing chloroactic acid through hthp method and its equipment |
| 03/10/2004 | CN1480242A Method of reducing discharge of nitrogen oxide in industrial procedue |
| 03/10/2004 | CN1141322C Process for selective oxidation of primary alcohols |
| 03/10/2004 | CN1141302C Process for treating waste water containing furaldehyde and recovering furaldehyde and acetic acid |
| 03/10/2004 | CN1141289C Clean productive process for extracting citric acid from citric acid fermentation liquid |
| 03/10/2004 | CN1141288C Reaction extraction process of refining glyoxalic acid |
| 03/10/2004 | CN1141287C Integrated process and system for recovering liluted acetic acid |