| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 01/13/2005 | WO2004052883A3 Process for the separation of enantiomers |
| 01/13/2005 | US20050010067 Simple alkaline aqueous saponification of methyl formate; removal of methanol |
| 01/13/2005 | US20050010066 Process for energy recovery in processes for the preparation of aromatic carboxylic acids |
| 01/13/2005 | US20050010065 Reacting (meth)acrylic acid with polyol in presence acid catalyst and polymerization inhibitor |
| 01/13/2005 | US20050010062 E2,e4,z8-undecatrienoic acid and ester and carboxamide derivatives thereof, organoleptic uses thereof and processes for preparing same |
| 01/13/2005 | US20050009997 Novel chiral auxiliary bearing resins |
| 01/13/2005 | US20050009911 Method for increasing ruminant fertility |
| 01/13/2005 | US20050006299 Device for performing the purifying separation of crystals out of their suspension in a contaminated crystal melt |
| 01/13/2005 | US20050006219 Liquid phase mixtures; controlling temperature; solid phase, circulating heat exchanger |
| 01/13/2005 | DE10328715A1 Verfahren zur kontinuierlichen Herstellung einer Verbindung, die mindestens zwei funktionelle Gruppen trägt A process for the continuous production of a compound carrying at least two functional groups |
| 01/13/2005 | DE10328714A1 Verfahren zur Abtrennung eines Rhodium enthaltenden Homogenkatalysators A process for separating a rhodium-containing homogeneous catalyst |
| 01/12/2005 | EP1496042A2 E2, E4,Z8-Undecatrienoic acid and ester and carboxamide derivatives thereof, organoleptic uses thereof and processes for preparing same |
| 01/12/2005 | EP1494998A2 Multiple-component solid phases containing at least one active pharmaceutical ingredient |
| 01/12/2005 | EP1494989A2 Compounds that modulate ppar activity and methods for their preparation |
| 01/12/2005 | EP1494988A1 A method of making salt |
| 01/12/2005 | EP1494987A1 Method for the production of 2,4,5-trimethylphenyl acetic acid |
| 01/12/2005 | EP1494986A1 Oxidation treatment of a recycle stream in production of acetic acid by methanol carbonylation |
| 01/12/2005 | EP1494983A1 Oligomerization of olefins |
| 01/12/2005 | EP1112246B1 Microbial process for the preparation of acetic acid as well as solvents for its extraction from the fermentation broth |
| 01/12/2005 | CN2670359Y Apparatus for producing ammonium tetraformate |
| 01/12/2005 | CN1564877A Method of removing iron oxide deposits from the surface of titanium components |
| 01/12/2005 | CN1564825A 二膦 Diphosphonic |
| 01/12/2005 | CN1564800A Method for the preparation of a stable alkali metal lactate in powder form |
| 01/12/2005 | CN1564799A Method for producing (meth)acrylic acid |
| 01/12/2005 | CN1564798A Process for producing (meth)acrylic acids and process for distilling the same |
| 01/12/2005 | CN1564709A Method for preparing a catalyst for partial oxidation of propylene |
| 01/12/2005 | CN1562989A Method for purifying compound of anhydrides aromatic carboxylic acid |
| 01/12/2005 | CN1562949A Method for purifying (meth) acrylic acid |
| 01/12/2005 | CN1562948A Process for producing (meth) acrylic acids |
| 01/12/2005 | CN1562947A Method for producing benzoic acid by degrading waste plastic of polystyrene through catalysis in liquid phase |
| 01/12/2005 | CN1562946A Method for preparing m-phthaloyl chloride in high purity |
| 01/12/2005 | CN1562945A Method for snthesizing isomery polyethenoxy ether carboxylate |
| 01/12/2005 | CN1562944A Method for synthesizing edible conjugated calcium linoleic acid |
| 01/12/2005 | CN1562943A Method for extracting gamma-linoleic acid from blue algae in water bloom |
| 01/12/2005 | CN1562942A Malonic acid in high purity |
| 01/12/2005 | CN1562941A Method for preparing trichlorideacetyl chloride from mother liquor of chloroactic acid |
| 01/12/2005 | CN1562940A New technique for preparing alpha halogenate acid in class of optical purity |
| 01/12/2005 | CN1562939A Carbonylation reactor for producing acetic acid, and application method |
| 01/12/2005 | CN1562938A Method for preparing hyperpure acetic acid and equipment |
| 01/12/2005 | CN1562937A Modified method for producing acetic acid through carbonylation, and equipment |
| 01/12/2005 | CN1562936A New technique for preparing oxyformyl chloride-isophthaloyl chlorine |
| 01/12/2005 | CN1562483A New technique for reclaining catalyzer of cobalt acetate and manganese acetate |
| 01/12/2005 | CN1184186C Technology of preparing caproleic acid |
| 01/12/2005 | CN1184185C Method for synthesizing 4-alkyl cyclohexyl acetic acid |
| 01/12/2005 | CN1184184C Method for producing calcium formate |
| 01/12/2005 | CN1183989C Reaction crystallizing method for improving grain size |
| 01/11/2005 | US6841709 Severing a part of molecular chains from polymers by allowing nitrogen oxides to do oxidative decomposition in inert gases |
| 01/11/2005 | US6841700 Method for producing anhydrous formic acid |
| 01/11/2005 | US6841699 Recalcined catalyst |
| 01/11/2005 | US6841686 Catalysts comprising group VI compounds, used for oxidation of butane to maleic anhydride |
| 01/11/2005 | CA2234853C Process for improving productivity of a carbonylation catalyst solution by removing corrosion metals |
| 01/06/2005 | WO2005000780A1 Piperazine salts of hydroxycinnamic acids and hydroxystilbenes |
| 01/06/2005 | WO2005000779A2 Oxidation of aromatic hydrocarbons using brominated anthracene promoters |
| 01/06/2005 | WO2005000463A2 Mixed metal oxide catalysts for propane and isobutane oxidation and ammoxidation, and methods of preparing same |
| 01/06/2005 | US20050004410 A layered double hydroxide precipitate formed by adding divalent and trivalent metal hydroxides to a solution of a perfluoroalkylcarboxylate or sulfonate; a fixed polymerization catalyst for polytetrafluoroethylene; improved pollution control |
| 01/06/2005 | US20050004396 Processes for producing (meth)acrylic acid |
| 01/06/2005 | US20050004395 Reacting perfluoroperoxy alcohol with base; heating; hydrolysis: acidification; separation |
| 01/06/2005 | US20050004394 Processes of producing glutamic acid compounds and production intermediates therefore and novel intermediate for the processes |
| 01/06/2005 | US20050004393 Passing gaseous ammonia through solution of aromatic carboxylic acid in aprotic solvent; narrow molecular weight distribution |
| 01/06/2005 | US20050004390 Method for recycling pet bottle |
| 01/06/2005 | US20050003000 Method for the the formation of ibuprofen crystals |
| 01/06/2005 | US20050001333 Reacting a haloaliphatic compound with lithium metal to form lithium alkyl; then reacting a aromatic halogen compound |
| 01/06/2005 | CA2526057A1 Mixed metal oxide catalysts for propane and isobutane oxidation and ammoxidation, and methods of preparing same |
| 01/06/2005 | CA2524738A1 Oxidation of aromatic hydrocarbons using brominated anthracene promoters |
| 01/05/2005 | EP1493729A1 Process for manufacturing high purity methacrylic acid |
| 01/05/2005 | EP1493728A1 Process for manufacturing high purity methacrylic acid |
| 01/05/2005 | EP1492755A1 (meth)acrylic acid crystal and method for the production and purification of aqueous (meth)acrylic acid |
| 01/05/2005 | EP1492754A2 Method for making carboxylic acids |
| 01/05/2005 | EP1243333B1 High surface microporous materials which are active in oxidation reactions. tiq-6 and metiq-6 |
| 01/05/2005 | CN1561333A Aromatic and heteroaromatic acid halides for synthesizing polyamides |
| 01/05/2005 | CN1561326A Alpha-haloenamine reagents |
| 01/05/2005 | CN1561321A Method for the production of acrylic acid by heterogeneously-catalysed gas-phase oxidation |
| 01/05/2005 | CN1561259A Oxidation reactor, method for producing (meth)acrylic acid or the like, and method for analyzing easily polymerizable compound |
| 01/05/2005 | CN1561257A Catalytic oxidation reactor with enhanced heat exchanging system |
| 01/05/2005 | CN1561198A Surfactant compounds and uses thereof |
| 01/05/2005 | CN1560018A 2-(alpha-n-pentanone) phenmethyl and its preparation process and application |
| 01/05/2005 | CN1560017A Process for separating and recovering potash element form Eichhornic crassipes plant |
| 01/05/2005 | CN1560016A Preparation process of malic acid |
| 01/05/2005 | CN1560014A Process for synthesizing amyl acid by catalyzing oxidizing amyl aldehyde of environmental pretection |
| 01/05/2005 | CN1560013A Preparation process of diacetic sodium |
| 01/05/2005 | CN1560012A Acetate prepared from air oxidation and petrochemical side product acetaldehyde |
| 01/05/2005 | CN1183094C Method for stabilizing N-oxyl compound in vinyl compound |
| 01/05/2005 | CN1183092C Intermediates and process for producing fluorine-contg. amino acid compound by using same |
| 01/05/2005 | CN1183091C Process for preparation of cyclopropane carboxylic acids |
| 01/05/2005 | CN1183090C Method for preparation of cyclopropyl acrylic derivative |
| 01/05/2005 | CN1183088C Composite oxide catalyst and method for preparing acrylic acid |
| 01/05/2005 | CN1183087C Preparation method for acrylic acid and apparatus for preparing arylic acid |
| 01/05/2005 | CN1183086C Method and appts for absorbing propenoic acid compound |
| 01/05/2005 | CN1183085C Producing method of methyl acrylic acid |
| 01/05/2005 | CN1183084C Refining method for (methyl) acrylic acid |
| 01/05/2005 | CN1183083C Process for producing (methyl) propenoic acid and/or (methyl) acrylate |
| 01/05/2005 | CN1183082C Process for preparation of (2R)-2-propyloctanoic acid |
| 01/05/2005 | CN1183080C Rhodium/inorganic iodide catalyst system for methanol carbonylation process with improved impurity profile |
| 01/05/2005 | CN1183079C Iridium catalyst for carbonylation of lower aliphatic alcohols |
| 01/05/2005 | CN1183062C Process for separating o-and p-substituted benzene compounds |
| 01/05/2005 | CN1183061C Preparing substituted olefine |
| 01/05/2005 | CN1182901C Purification method and tower, and liquid separating tower tray therefor |
| 01/04/2005 | US6838579 Extraction using amide compound |
| 01/04/2005 | US6838061 Reactor for carrying out gas-liquid, liquid, liquid-liquid or gas-liquid-solid chemical reactions |
| 12/30/2004 | US20040267054 Process for removal of acrolein from acrylonitrile product streams |