| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 10/06/1999 | EP0946484A1 Method for controlling the reactivity of an ozonization reaction product |
| 10/06/1999 | EP0946482A1 Method for preparing a 4-hydroxybenzaldehyde and derivatives |
| 10/06/1999 | EP0946481A1 Functionalized oligomer mixtures derived from cyclopentene |
| 10/06/1999 | EP0946466A1 Methods of preparing an intermediate oxidation product from a hydrocarbon by utilizing an activated initiator |
| 10/06/1999 | EP0946300A1 Production of aromatic carboxylic acids and recovery of co/mn cattalyst from ash |
| 10/06/1999 | EP0946295A1 Catalyst for dehydrogenation of amino alcohols to amino carboxylic acids or of ethylene glycol (derivatives) to oxycarboxylic acids, method for their production and their use |
| 10/06/1999 | EP0946283A1 Methods and devices for controlling the oxidation rate of a hydrocarbon by adjusting the ratio of the hydrocarbon to a rate-modulator |
| 10/06/1999 | EP0946281A1 Methods and devices for controlling the oxidation of a hydrocarbon to an acid by regulating hold-up time in multi-stage arrangement |
| 10/06/1999 | EP0800501B1 Production of trialkylacetic acids using a solid cationic resin catalyst system |
| 10/06/1999 | EP0788406B1 VAPOR PHASE CATALYTIC OXIDATION OF n-BUTANE TO MALEIC ANHYDRIDE INCORPORATING IN SITU CATALYST CALCINATION/ACTIVATION |
| 10/06/1999 | EP0783479B1 Conversion of nylon 6 and/or nylon 6,6 to adipic acid |
| 10/06/1999 | EP0746539B1 Process for the preparation of cinnamic acid derivatives |
| 10/06/1999 | EP0682554B1 Filtration process |
| 10/06/1999 | CN1230536A Preparation of carboxylate of lanthanide metals |
| 10/05/1999 | US5962735 Using zeolite, molecular sieve |
| 10/05/1999 | US5962734 Method of producing calcium pyruvates |
| 10/05/1999 | US5962732 Carbonylation |
| 10/05/1999 | US5961941 Production of precipitated calcium carbonate from papermaking sludge and sludge-derived ash |
| 10/05/1999 | US5961935 Method and apparatus for preparing purified terephthalic acid |
| 10/05/1999 | US5961790 Separation of (meth) acrylic acid by rectification |
| 10/05/1999 | CA2118836C Process and apparatus for producing terephthalic acid |
| 09/30/1999 | WO1999048866A1 Process for producing 13-cis retinoic acid |
| 09/30/1999 | WO1999048583A1 Method for separating vaporous phthalic acid anhydride from a gas stream |
| 09/30/1999 | WO1999037599A3 Methods and devices for separating catalyst from oxidation mixtures containing dibasic acids |
| 09/30/1999 | DE19813286A1 Verfahren zum Abtrennen von dampfförmigen Phthalsäureanhydrid aus einem Gasstrom A method for separating vaporous phthalic anhydride from a gas stream |
| 09/30/1999 | CA2325517A1 Process for producing 13-cis retinoic acid |
| 09/29/1999 | EP0945428A2 A method for the preparation of salts of carboxylic acids |
| 09/29/1999 | EP0945180A2 Catalyst and production process for pyromellitic dianhydride |
| 09/29/1999 | EP0664784B2 Enantiomeric resolution |
| 09/29/1999 | CN1230168A Method for purifying acrylic acid and methacrylic acid |
| 09/29/1999 | CN1230167A Method for purifying crude naphthalenedicarboxylic acid and process for preparing polyethylene naphthalate |
| 09/29/1999 | CN1229786A Method of synthetizing normal acetic acid by using natural materials |
| 09/29/1999 | CN1229785A Synthetic process of natural material normal butyric acid |
| 09/29/1999 | CN1045277C Method of generated no from air flow containing N2O |
| 09/29/1999 | CN1045257C Medicine for treating cancer |
| 09/28/1999 | US5959144 From an aqueous liquor containing water and calcium lactate, comprising the extraction step of combining the lactate aqueous liquor with an extractant containing at least one water immiscible amine having a total of at least 18 carbon |
| 09/28/1999 | US5959143 Catalyst comprises molybdenum, vanadium, copper and antimony as essential components. the peak in x-ray diffractometry of the catalytically active component with cu--k alpha line is largest at 22.2.+-0.30 degree (2 theta). |
| 09/28/1999 | US5959142 Process for refining methacrylic acid |
| 09/28/1999 | US5959140 Process for producing aromatic carboxylic acid |
| 09/28/1999 | US5959139 Process for producing optically active 2-hydroxy-4-arylbutyric acid or its ester |
| 09/28/1999 | US5959124 Subjecting butane to partial vapor phase oxidation with a molecular oxygen containing gas in presence of vandium-phosphorus oxide catalyst having specific x-ray diffraction spectrum |
| 09/28/1999 | US5958821 Epoxidation of an alkene using a cyclic n-hydroxyimide and a cocatalyst of a compound of a group 2a or transition metal using oxygen; catalyst selectivity; free of phospho-vanadomolybdic acid or tetraphenylporphyrintoato manganese |
| 09/23/1999 | WO1999047528A1 Process for the preparation of bisphosphines |
| 09/23/1999 | WO1999047489A1 A process for the manufacture of (2s,2'r,3'r)-2-(2,3-dicarboxylcyclopropyl)-glycine |
| 09/23/1999 | WO1999047482A1 Rectification of (meth)acrylic acid with the addition of a tenside |
| 09/23/1999 | WO1999047258A1 Catalytic materials for selective oxidation of alcohols, process for production thereof and their use in alcohol oxidation process |
| 09/23/1999 | CA2323203A1 A process for the manufacture of (2s,2'r,3'r)-2-(2,3-dicarboxylcyclopropyl)-glycine |
| 09/22/1999 | EP0943006A1 A method for producing an extract from ganoderma lucidum containing ganoderic acid |
| 09/22/1999 | EP0942898A1 Production of carboxylic acid fluorides |
| 09/22/1999 | EP0942897A1 Process for the production of acetic acid |
| 09/22/1999 | EP0942717A2 Method for controlling body fat and/or body weight in animals and pharmaceutical compositions for use therein |
| 09/22/1999 | CN1229406A Processes for preparing 2-('omega'-alkoxycarbonylalkanoyl)-4-butanolides, 'omega'-hydroxy-('omega'-3)-keto fatty esters, and derivatives thereof |
| 09/21/1999 | US5955627 Halogenating cyclopropylacrylic acid derivative; chemical intermediates |
| 09/21/1999 | US5955394 Oxidation of alkyl aromatics to form carboxylic acids using cobalt, manganese and hydrobromic acid, filtration and elution |
| 09/21/1999 | US5955084 Solvent extraction; reducing and photooxidation of artemisinic acid; chromatography, evaporation, purification |
| 09/21/1999 | CA2004960C Isomerization of carboxylic acids |
| 09/16/1999 | DE19810962A1 Reducing deposition in rectification to separate (meth)acrylic acid from higher boiling organic liquid |
| 09/15/1999 | EP0941983A1 Toner for developing electrostatic latent image, charge control agent for use in the toner, and process for preparing the charge control agent |
| 09/15/1999 | EP0941982A2 Process for synthesizing benzoic acids |
| 09/15/1999 | EP0941231A1 Heteroarylic-arylic diphosphines as chiral ligands |
| 09/15/1999 | EP0917909B1 Preparation process of a coated catalyst for the synthesis of maleic anhydride in the gas phase |
| 09/15/1999 | EP0772581B1 Method of recycling a catalyst in a reaction involving the direct oxidation of cyclohexane into adipic acid |
| 09/15/1999 | CN1228760A Process for separating by distillation pure (meth) acrylic acid from mixture |
| 09/15/1999 | CN1228758A Haphthyl compounds, intermediates, compositions and methods of use |
| 09/15/1999 | CN1228408A Anhydrous carbonylation process for production of acetic acid |
| 09/15/1999 | CN1228407A Piece-form calcium formate |
| 09/15/1999 | CN1228406A Carboxylate overbased gels |
| 09/15/1999 | CN1045083C Lifibrol antilipemic agent and its use |
| 09/14/1999 | US5952530 Selectively solvent extracting from the reaction product fluid by phase separation, using a metal-organophosphorus ligand complex catalyst, optionally free organophosphorus ligand, and nonpolar solvent |
| 09/14/1999 | US5952522 Catalyzing the reaction with carbon monoxide and a co-reactant in the presence of a catalyst system comprising a source of platinum, a bidentate ligand and a source of anions |
| 09/14/1999 | US5952517 Method for preparing cleaved products from castor oil or derivatives thereof |
| 09/14/1999 | CA2174591C Process for the hydroxycarbonylation of butadiene |
| 09/10/1999 | WO1999044980A1 Method for separating and purifying adipic acid |
| 09/10/1999 | WO1999044707A2 Purification of organic acids using anion exchange chromatography |
| 09/10/1999 | CA2322701A1 Method for separating and purifying adipic acid |
| 09/10/1999 | CA2321759A1 Purification of organic acids using anion exchange chromatography |
| 09/08/1999 | EP0939752A1 Manufacture of fluorinated compounds |
| 09/08/1999 | EP0799155B1 Manufacture of carbonyl fluoride |
| 09/08/1999 | EP0789681B1 Method for preparing carboxylic acids by carbonylation in the presence of rhodium |
| 09/08/1999 | CN1228077A Process for producing aromatic tricarboxylic acids |
| 09/08/1999 | CN1228072A Process for preparing 2-aryl-substituted indenes |
| 09/08/1999 | CN1227836A Continuous process for preparation of pivaloyl chloride and of aroyl chloride |
| 09/07/1999 | US5948949 Process for producing 2,6-dimethylnaphthalene |
| 09/07/1999 | CA2102313C A process for controlling the regeneration of boron trifluoride catalyst complex in the production of carboxylic acids |
| 09/07/1999 | CA2091864C Process for producing halogenophenoxyfatty acid derivatives by selective halogenation and halogenophenoxyfatty acid derivatives |
| 09/02/1999 | WO1999043715A1 Coatings with polymerisation-inhibiting properties |
| 09/02/1999 | WO1999033788A3 Method for producing aromatic bromomethyl biphenyl compounds |
| 09/02/1999 | DE19809166A1 Enhancement of catalytic activity and selectivity of carbon-carbon bonding reactions in water or multiphase system |
| 09/02/1999 | DE19808179A1 Beschichtungen mit polymerisationsinhibierenden Eigenschaften Coatings with polymerization-inhibiting properties |
| 09/01/1999 | EP0939454A2 Electrical wiring construction including a bus bar |
| 09/01/1999 | EP0939072A1 Pelletized calcium formate |
| 09/01/1999 | EP0938464A1 Recovery of highly fluorinated carboxylic acids from the gaseous phase |
| 09/01/1999 | EP0938463A1 Processes for the oxidation of alkanes |
| 09/01/1999 | EP0758311B1 Catalyst recovery in the carbonylation of chlorobutenes to pentenoyl chloride |
| 09/01/1999 | CN2335968Y Sebacic acid granulating tower |
| 09/01/1999 | CN1227537A Preparation of propenoic acid and butene acid |
| 09/01/1999 | CN1227507A Mixing device for liquids |
| 09/01/1999 | CN1227505A Device for phase saparation |
| 09/01/1999 | CN1227217A Method for making bis-xylenols containing acid moieties |
| 09/01/1999 | CN1227216A Process for extracting phenylacetic acid from waste liquid of cracking production of 6-amino-penicillanic acid |