| Patents for C07B 63 - Purification; Separation specially adapted for the purpose of recovering organic compounds; Stabilisation; Use of additives (4,057) |
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| 04/12/2000 | EP0992494A1 Package for safe storage of electrophilic fluorinating agent |
| 04/12/2000 | EP0991733A1 Mixture of substances containing compounds with vinyl groups and stabilizers |
| 04/12/2000 | CN1249963A Catalyst and method for purifying mass flow |
| 04/12/2000 | CN1051296C A process for separating lipophilic compounds |
| 04/05/2000 | CN1249290A Process for refining high-purity reagent by raction extractive reactification |
| 04/04/2000 | CA2105402C Radiolabelled compound formulations |
| 03/29/2000 | EP0989105A1 Process for producing aromatic compounds via treatment with supercritical water |
| 03/28/2000 | US6043067 Agitating suspended particles and liquid to divide it into turbulent zone close to liquid inlet and non-turbulent zone away from inlet; extent of turbulent zone is determined by degree of agitation; for bioreactors and wastewater treatment |
| 03/23/2000 | WO2000016231A1 Method for screening and producing compound libraries |
| 03/23/2000 | WO2000015588A1 Fluoroalkene-nucleophile adducts for analysis and removal of fluoroalkenes |
| 03/23/2000 | WO2000015178A2 Computer implemented pharmacokinetics method and program |
| 03/23/2000 | CA2344036A1 Pharmacokinetic-based drug design tool and method |
| 03/23/2000 | CA2343914A1 Method for screening and producing compound libraries |
| 03/22/2000 | CN1248236A Method for eliminating inhibitors of polymerisation of monomer mixtures using optimized alumina |
| 03/22/2000 | CN1248235A Method for eliminating inhibitors of polymerisation of monomer mixture using doped alumina |
| 03/22/2000 | CN1248234A Method for eliminating inhibitors of polymerization of monomer mixtures using alumina with optimised form |
| 03/22/2000 | CN1247850A Method for removing organic acid and/or inorganic acid from organic phase |
| 03/16/2000 | WO2000014177A1 Vinyl monomer polymerization inhibition using hindered hydroxylamines |
| 03/16/2000 | WO2000014175A1 Chemical compositions |
| 03/16/2000 | CA2343022A1 Vinyl monomer polymerization inhibition using hindered hydroxylamines |
| 03/15/2000 | CN1247526A Method for recovering gas from hydrates |
| 03/09/2000 | DE19840372A1 Katalysator und Verfahren zur Reinigung von Stoffströmen Catalyst and process for the purification of gas streams |
| 03/08/2000 | EP0983794A1 Catalyst and process for purifying material flows |
| 03/08/2000 | EP0983217A1 Method for removing heavy metals from organic compounds |
| 03/08/2000 | EP0871527A4 Thermally-managed separation and dewatering processes for recovering acid products |
| 03/04/2000 | CA2281239A1 Catalyst and process for purifying streams of materials |
| 03/02/2000 | DE19838426A1 Verfahren zum Trennen von Trimethylolpropan von wasserlöslichen Salzen aus einer Lösung A method of separating water-soluble salts of trimethylolpropane from a solution |
| 03/02/2000 | DE19838425A1 Verfahren zur Abtrennung mehrfunktioneller Alkohole von wasserlöslichen Salzen aus wäßrigen Systemen Process for the separation of polyfunctional alcohols from water-soluble salts from aqueous systems |
| 03/01/2000 | EP0982284A2 Method for the separation of trimethylolpropane from water-soluble salts in a solution |
| 03/01/2000 | EP0982283A2 Method for the separation of polyfunctional alcohols from water-soluble salts in aqueous systems |
| 03/01/2000 | EP0981507A1 Process for the removal of heavy metals |
| 02/24/2000 | CA2280541A1 Process for separating trimethylolpropane and water soluble salts from a solution |
| 02/24/2000 | CA2280535A1 Process for separating polyfunctional alcohols from water-soluble salts in aqueous systems |
| 02/23/2000 | CN1245080A Process for decomposing halogen ester group hydrocarbon compound or aromatic compound and device thereof and process for purifying waste gas and device for this method |
| 02/22/2000 | CA2157248C Crystalline form of dihydro-2, 3 benzodiazepine derivative |
| 02/16/2000 | EP0979811A1 Process for removing organic and/or inorganic acids from organic phases |
| 02/16/2000 | EP0979806A1 Process for selective enrichment and separation of aroma molecules by adsorption |
| 02/15/2000 | US6024894 Synergistic composition of quinone methide derivative and hydroxylamine compound |
| 02/10/2000 | WO2000006297A1 Compound storage |
| 02/10/2000 | WO2000006279A1 Process for purifying solid chemical products by dry-sweating |
| 02/10/2000 | DE19900382A1 Verfahren zur Entfernung von organischen und/oder anorganischen Säuren aus organischen Phasen A process for the removal of organic and / or inorganic acids from organic phases |
| 02/10/2000 | DE19835542A1 Verfahren zur selektiven Anreicherung und Trennung aromawirksamer Moleküle durch Adsorption Process for the selective enrichment and separation aroma active molecules by adsorption |
| 02/09/2000 | EP0978311A1 A method of fluid bed chromatography |
| 02/09/2000 | CN1049156C A process and a device for seperating a solid residue from its solution in a stirred bed of material |
| 02/06/2000 | CA2279755A1 Method for the selective concentration and separation of aroma molecules by adsorption |
| 02/02/2000 | EP0976743A2 Separation of trioxanne from gas mixtures with formaldehyde |
| 02/02/2000 | EP0976702A1 Method for inhibiting polymerization of a vinyl compound |
| 02/02/2000 | EP0976451A1 Process for the recovery of perfluorinated sulphonic acids from spent acid |
| 02/02/2000 | EP0976447A1 Fluid bed reactor |
| 02/02/2000 | EP0975563A1 Method for eliminating inhibitors or polymerisation of monomer mixtures using a doped alumina |
| 02/02/2000 | EP0730485B1 Process for the simplified separation of complex mixtures at least partially of organic origin |
| 02/02/2000 | CN1243115A Polymerization inhibiting method for ethenyl chemical compound |
| 02/01/2000 | CA2116318C Process for reducing the free aldehyde content in n-alkylol amide monomers |
| 01/27/2000 | WO2000003965A1 Derivatives of 1-oxyl-4-hydroxy- or 4-amino-2,2,6,6-tetramethylpiperidine as polymerization inhibitors for (meth)acrylate monomers |
| 01/27/2000 | DE19833620A1 Abtrennung von Trioxan aus gasförmigen Gemischen mit Formaldehyd Removing trioxane from gaseous mixtures with formaldehyde |
| 01/26/2000 | EP0973707A1 Method for eliminating inhibitors of polymerisation of monomer mixtures using an alumina with optimised form |
| 01/26/2000 | EP0973706A1 Method for eliminating inhibitors of polymerisation of monomer mixtures using an optimised alumina |
| 01/26/2000 | CN1242355A Method for extracting total free anthraquinone from Chinese rhubarb |
| 01/26/2000 | CN1048712C Improved precooling for ethylene recovery in dual demethanizer fractional system |
| 01/25/2000 | CA2278907A1 Separating off trioxane from gaseous mixtures with formaldehyde |
| 01/19/2000 | EP0726801B1 Process for separating a mixture |
| 01/11/2000 | US6013803 Reducing aminopiperidine derivative with a reducing agent to reduce the dimers of the compound |
| 01/11/2000 | CA2117981C Process for the purification of 1,1,1,2-tetrafluoroethane |
| 01/05/2000 | EP0969001A2 Process for the preparation of vitamin D3 and provitamin D3 |
| 01/05/2000 | EP0968739A1 Method and apparatus for decomposing halogenated aliphatic and aromatic compounds |
| 01/05/2000 | EP0968167A1 Dicarboxylic acid crystallizates |
| 01/05/2000 | EP0794933B1 A method for inhibiting premature polymerization of vinyl aromatic monomers |
| 01/05/2000 | CN1240209A Separation process for vitamin D3 |
| 01/04/2000 | US6011181 Reducing the level of tri-substituted phosphine, arsine and/or stibine oxide from a mixture comprising the addition of a metal salt to the mixture to form a complex with the oxide, and removing the complex |
| 01/04/2000 | US6011173 Adding an effective amount of a chloroacetic acid thereto. |
| 12/23/1999 | CA2275557A1 Process for isolating vitamine d3 |
| 12/21/1999 | US6004403 Solvent cleaning system |
| 12/14/1999 | US6001838 By a combination of adsorption using acid zeolites and crossflow filtration. |
| 12/08/1999 | EP0594837B2 Radiolabelled compound formulations |
| 12/07/1999 | CA2101524C Inhibiting popcorn polymer formation with esters of inorganic acids |
| 12/02/1999 | WO1999061396A1 Method for stabilizing unsaturated organic compounds from polymerization |
| 11/30/1999 | US5993607 Process for the purification of chlorinated aromatic hydrocarbons |
| 11/25/1999 | WO1999060072A1 Substance mixtures which comprise compounds containing vinyl groups and which comprise stabilizers |
| 11/25/1999 | WO1999059711A1 Preparation of an organic compound by a condensation reaction |
| 11/24/1999 | EP0959059A2 A method for inhibiting premature polymerization of vinyl aromatic monomers |
| 11/24/1999 | EP0958268A1 Spherical molecular assembly |
| 11/24/1999 | EP0895516B1 Process for separating organic monomers or auxiliaries |
| 11/24/1999 | CN1046707C 2-cyanoacrylic acid esters |
| 11/24/1999 | CN1046695C Method for recovering ethylene by using mixed refrigerant cycle |
| 11/24/1999 | CN1046694C Method for recovering ethylene by using open loop mixed refrigerant cycle |
| 11/23/1999 | US5989508 Liquid medium extraction purification method |
| 11/18/1999 | DE19917967A1 Mixture of substances containing vinyl compounds to be stabilized against premature polymerisation, e.g. during purification or distillation |
| 11/18/1999 | DE19821378A1 Verfahren zur Auftrennung von Tetrahydropyrimidinderivaten A process for the separation of Tetrahydropyrimidinderivaten |
| 11/17/1999 | EP0957174A1 Process for the separation of tetrahydropyrimidin derivatives |
| 11/17/1999 | EP0957086A2 Process for the removal of metal compounds from an aqueous acid solution |
| 11/17/1999 | EP0956141A1 Amine heat stable salt neutralization having reduced solids |
| 11/17/1999 | CN1046493C Method for inhibiting premature polymerization of vinyl aromatic monomers |
| 11/13/1999 | CA2271519A1 Process for the separation of tetrahydropyrimidine derivatives |
| 11/09/1999 | US5981751 Method for removal of residual organic solvents and use thereof in manufacturing pharmaceuticals |
| 11/04/1999 | WO1999055797A1 Composition and method for radical polymerisation of ethylenically unsaturated monomers |
| 11/03/1999 | EP0952973A1 Composition and method for inhibiting polymerization during the anaerobic production of styrene |
| 11/02/1999 | US5976813 Continuous format high throughput screening |
| 11/02/1999 | US5976324 Removal of water from reaction mixtures |
| 10/27/1999 | CN1232824A Process for production of cyanuric chloride mouldings |
| 10/21/1999 | WO1999052841A1 Process for producing aromatic compounds via treatment with supercritical water |