| Patents for C07C 51 - Preparation of carboxylic acids or their salts, halides, or anhydrides (43,144) |
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| 06/15/2000 | WO2000034222A1 Method for the manufacture of alkyl ketene dimers |
| 06/15/2000 | WO2000034221A1 Nitric acid removal from oxidation products |
| 06/15/2000 | WO2000034220A2 Method for stabilizing chemical compounds containing at least one ethylenically unsaturated bond in order to prevent undesirable radical polymerization |
| 06/15/2000 | DE19856565A1 Verfahren zur Stabilisierung von wenigstens eine ethylenisch ungesättigte Bindung aufweisenden chemischen Verbindungen gegen unerwünschte radikalische Polymerisation Process for stabilizing at least one ethylenically unsaturated bond-containing chemical compounds against unwanted free-radical polymerization |
| 06/14/2000 | EP1008583A1 Process for making 2-alkyl-3-hydroxybenzoic acids |
| 06/14/2000 | EP1007506A2 Compositions and methods for reversibly increasing permeability of biomembranes |
| 06/14/2000 | EP1007499A1 High productivity process to produce maleic anhydride from n-buthane |
| 06/14/2000 | EP1007206A1 Phosphorus/vanadium catalyst preparation |
| 06/14/2000 | CN1256264A Process for preparing 2-alkyl-3-hydroxy-benzoic acid |
| 06/14/2000 | CN1256263A Preparation of o-chloromandelic acid |
| 06/14/2000 | CN1053392C Methyl alcohol carbonylation homogeneous rhodium catalyst and its preparing method and use |
| 06/14/2000 | CN1053391C Methanol carbonylation sulphur-oxygen coordinated catalyst for making acetic acid and its prepn. |
| 06/13/2000 | US6075165 Process for the preparation of polyhalogenated benzotrifluorides, benzotrichlorides and benzoyl chlorides and new trihalogenobenzotrichlorides and -benzoyl chlorides |
| 06/13/2000 | US6075163 Process for manufacturing terephthalic acid |
| 06/13/2000 | CA2198514C Improved reactor system |
| 06/13/2000 | CA2196061C High activity ruthenium or osmium metal carbene complexes for olefin metathesis reactions and synthesis thereof |
| 06/13/2000 | CA2162936C Aluminum citrate preparations and methods |
| 06/08/2000 | WO2000032549A1 Method of producing acid fluorides from acid chlorides |
| 06/08/2000 | WO2000032548A1 Improved process for producing highly pure aromatic carboxylic acids |
| 06/08/2000 | DE19855913A1 Multimetalloxidmasse zur gasphasenkatalytischen Oxidation organischer Verbindungen Multimetal for gas-phase catalytic oxidation of organic compounds |
| 06/08/2000 | DE19855765A1 Oxidationsstabile Oleine Oxidation-stable Oleine |
| 06/08/2000 | CA2352869A1 Method of producing acid fluorides from acid chlorides |
| 06/07/2000 | EP1006175A1 Oxidation stable oleins |
| 06/07/2000 | EP1005908A2 Multimetal oxide mass for gas phase oxidation of organic compounds |
| 06/07/2000 | EP1005586A1 Method for the recovery of formic acid |
| 06/07/2000 | EP1005477A2 Method for isolating anionic organic substances from aqueous systems using cationic polymer nanoparticles |
| 06/07/2000 | EP1005465A2 New epothilone derivatives, method for producing same and their pharmaceutical use |
| 06/07/2000 | EP1005443A1 Processes for preparing hydrocinnamic acid |
| 06/07/2000 | EP1005394A1 Method for producing multi-metal oxide masses containing mo, v and cu |
| 06/07/2000 | CN1255485A 2-valence metal salt of alcoether carboxylic acid and its preparing process |
| 06/07/2000 | CN1255484A 2-valence metal salt of alkylphenol polyoxyvinethene carboxylic acid and its preparing process |
| 06/07/2000 | CN1255483A Process for refining long-chain biatomic acid |
| 06/07/2000 | CN1053179C Purification of crude (meth) acrylic acid |
| 06/07/2000 | CN1053178C Process for prepn. of carboxylic acids or corresponding esters in presence of catalyst based on reodium and iridium |
| 06/06/2000 | US6072098 Process for producing highly pure 2,6-dimethylnaphthalene |
| 06/06/2000 | US6072082 Reacting aliphatic aldehyde with formaldehyde in presence of water soluble base, oxidizing hydroxymethylalkanal to acid, recovering acid by adding mineral acid to form salt of base, replacing water with organic solvent, recrystallizing acid |
| 06/06/2000 | CA2015424C Preparation of adipic acid from lactones |
| 06/02/2000 | WO2000031015A1 Method of modifying components present in cashew nut shell liquid |
| 06/02/2000 | WO2000031014A1 Process of purifying and producing high purity aromatic polycarboxylic acids and derivatives thereof |
| 06/02/2000 | WO2000031013A1 Method of producing phthalic acid anhydride |
| 06/02/2000 | WO2000030743A1 Reactor for carrying out gas-liquid, liquid-liquid or gas-liquid-solid chemical reactions |
| 06/02/2000 | CA2352331A1 Method of modifying components present in cashew nut shell liquid |
| 05/31/2000 | EP1004567A2 Process for the production of maleic anhydride |
| 05/31/2000 | EP1003708A1 Improved process for separating pure terephthalic acid |
| 05/31/2000 | EP1003707A1 Malonic acid and esters thereof |
| 05/31/2000 | EP1003697A1 Method for oxidising substituted hydrocarbon derivatives |
| 05/31/2000 | EP0882008B1 Process for isomerically selective hydrocarboxylation of olefins |
| 05/31/2000 | EP0863865B1 Acid-salt metathetic process |
| 05/31/2000 | EP0862549B1 Process for preparing optically active carboxylic acids |
| 05/31/2000 | EP0799178B1 Improved process for the purification of aromatic polycarboxylic acids |
| 05/31/2000 | EP0734372B1 Process for preparing aromatic carboxylic acids with efficient energy recovery |
| 05/31/2000 | DE19942374A1 Verfahren zur Herstellung von Säurefluoriden aus Säurechloriden Process for the preparation of acid fluorides from acid chlorides |
| 05/31/2000 | DE19854892A1 Production of phthalic anhydride comprises catalytic gas-phase oxidation of technical o-xylene with oxygen in presence of sulfur dioxide, using o-xylene with a low content of N-acyl compounds |
| 05/31/2000 | DE19854637A1 Reaktor zur kontinuierlichen Durchführung von Gas-Flüssig-, Flüssig-Flüssig- oder Gas-Flüssig-Fest-Reaktionen Reactor for the continuous implementation of gas-liquid, liquid-liquid or gas-liquid-solid reactions |
| 05/31/2000 | CN1255116A Process for producing maleic acid |
| 05/31/2000 | CN1254708A Process for synthesizing C1-6 fragment compound as intermediate of esperamicin |
| 05/31/2000 | CN1254707A C1-6 fragment compound as intermediate of esperamicin and its usage |
| 05/31/2000 | CN1254706A Apparatus and process for producing perspex or methyl acrylic acid with high output rate |
| 05/31/2000 | CN1254705A Process for separating and concentrating formic acid with phosphorus-contained extractant |
| 05/30/2000 | US6069271 Two-stage catalytic oxidation of propylene using a single fixed bed shell-and-tube heat exchanger type reactor |
| 05/30/2000 | US6069270 Reacting with optical active 1-(p-tolyl)ethylamine to form diasteriomer salts, separating by utilizing their difference in solubility in a solvent; a chemical intermediates for the synthesis of an hiv protease inhibitor |
| 05/30/2000 | US6069119 Method for preparing an alkaline earth metal tallate |
| 05/25/2000 | WO2000029106A1 Catalysts for catalytic oxidationof propane to acrylic acid, methods of making and using the same |
| 05/25/2000 | WO2000029105A1 Catalytic oxidation of alkanes to corresponding acids |
| 05/24/2000 | EP1002787A1 Process for the purification of (meth)acrylic acid |
| 05/24/2000 | EP1002786A1 Process for the preparation of trifluorobenzoic acids |
| 05/24/2000 | EP1002785A1 Process for the production of acetic acid |
| 05/24/2000 | EP1001960A1 Porous solid products of 1,3,5-benzenetricarboxylate and metal ions |
| 05/24/2000 | EP1001926A1 Improved process for recovering hydrogen in producing pure terephthalic acid |
| 05/24/2000 | EP1001925A1 Methods and devices for controlling hydrocarbon oxidations to respective acids by adjusting the solvent to hydrocarbon ratio |
| 05/24/2000 | EP0800502B1 Reactive distillation process for the production of acetic acid and methanol from methyl acetate hydrolysis |
| 05/24/2000 | CN1253942A Method for recovering benzoic acid from cobalt manganese residue discharged in the course of production of terephthalic acid |
| 05/23/2000 | US6066764 Production of 3-chloro-4-fluoro-benzoyl chloride by Lewis-acid catalyzed chlorination of the aromatic ring |
| 05/23/2000 | US6066763 Heating to evolve ammonia and water, which are removed to leave a low molecular weight poly(alpha-hydroxy acid) residue; adding water, heating to hydrolyze the residue to free alpha-hydroxy acid; no by-product disposal problems |
| 05/23/2000 | US6066762 Process for the production of carbonyl compound |
| 05/23/2000 | US6066761 From an aqueous solution of its metal salt, by reacting with an organic or inorganic acid, heating until a liquid two-phase system is formed, and separating the organic phase from aqueous phase; can be nitrated directly to acifluorfen |
| 05/23/2000 | US6066589 Hydrogenation catalysts |
| 05/23/2000 | CA2114635C Process for preparing adipic acid |
| 05/18/2000 | WO2000027786A1 Stereoselective process for preparing (cyclo)alkyl phenylglycolic acids |
| 05/18/2000 | WO2000027785A1 Method for preparing acetic acid and/or methyl acetate in the presence of iridium and platinum |
| 05/18/2000 | WO2000027782A1 New method for making photocurable halofluorinated acrylates |
| 05/18/2000 | WO2000027779A1 Process for removing halide impurities by resin treatment |
| 05/18/2000 | WO2000027753A1 Polymetal oxide containing silver oxide and vanadium oxide and the use thereof |
| 05/18/2000 | DE19852894A1 Phthalic anhydride generated by the controlled partial oxidation of o-xylene or naphthalene in high-yield catalytic reactor with reduced by-products |
| 05/18/2000 | DE19830770C1 Wasserlösliche Zinkpyruvate bzw. deren Hydrate, Verfahren zu ihrer Herstellung und deren Verwendung Water-soluble zinc pyruvate or hydrates thereof, processes for their preparation and their use |
| 05/18/2000 | CA2350539A1 New method for making photocurable halofluorinated acrylates |
| 05/18/2000 | CA2349209A1 Stereoselective process for preparing (cyclo)alkyl phenylglycolic acids |
| 05/17/2000 | EP1000007A1 Process for the production of aromatic acids |
| 05/17/2000 | EP1000006A1 Improved process of preparation of linear aldehydes |
| 05/17/2000 | EP1000001A1 A process for the preparation of cyclopropylacetylene |
| 05/17/2000 | EP0836588B1 Process to prepare 5-formylvaleric acid |
| 05/17/2000 | EP0796238B1 Method of stabilizing polyunsaturated fatty acids and their application in therapy and cosmetics |
| 05/17/2000 | CN1253542A Process and catalyst for preparing acetic acid by catalytic oxidation of ethane |
| 05/17/2000 | CN1253541A Method for producing acetic acid in reactor cascade |
| 05/16/2000 | US6063959 Purification of crude acrylic acid by crystallization |
| 05/16/2000 | US6063958 Method of recovering adipic acid and 6-hydroxycaproic acid from waste solution of alkali metal salts of organic acids coming from the process of cyclohexane oxidation |
| 05/16/2000 | US6063882 Long-chain dialkylmagnesium, its preparation process and applications |
| 05/16/2000 | CA2138153C Electrochemical preparation of dicarboxylic acids |
| 05/16/2000 | CA2126752C Benzopyran and related ltb4 antagonists |
| 05/16/2000 | CA2019638C Process for the manufacture of 3-pentenoic acid |