| 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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| 09/25/2001 | US6294700 Subjecting reaction product fluid to fractional countercurrent extraction with at least two immiscible extraction solvents comprising at least one polar extraction solvent and at least one nonpolar extraction solvent, recovering nonpolar phase |
| 09/25/2001 | US6294056 Uniformly distributing a supply liquid in a distillation tower over horizontal cross sectional area area in distillation tower to prevent polymerization in distillation tower for distillating (meth)acrylic acid or esters |
| 09/20/2001 | WO2001068598A2 Dosing form for a polymer support, use of said dosing form in organic chemical synthesis and method for production of said dosing form |
| 09/20/2001 | WO2001068252A2 Improved metal-ligand complex catalyzed processes |
| 09/20/2001 | WO2001068251A2 Separation of reaction products containing organophosphorus complexes |
| 09/20/2001 | WO2001068250A2 Separation of reaction products containing organophosphorus complexes |
| 09/20/2001 | WO2001068249A2 Separation of reaction products containing organophosphorus complexes |
| 09/20/2001 | WO2001068248A2 Separation of reaction products containing organophosphorus complexes |
| 09/20/2001 | WO2001068247A2 Separation of reaction products containing organophosphorus complexes |
| 09/20/2001 | CA2403091A1 Separation of reaction products containing organophosphorus complexes |
| 09/20/2001 | CA2403088A1 Separation of reaction products containing organophosphorus complexes |
| 09/20/2001 | CA2402892A1 Separation of reaction products containing organophosphorus complexes |
| 09/20/2001 | CA2402584A1 Dosing form for a polymer support, use of said dosing form in organic chemical synthesis and method for production of said dosing form |
| 09/20/2001 | CA2402140A1 Improved metal-ligand complex catalyzed processes |
| 09/19/2001 | EP1133353A1 Catalyst body and method for reducing halogenated hydrocarbons |
| 09/19/2001 | EP1133285A1 A process for producing particles with a converted amorphous and/or meta-stable crystalline region into crystalline state |
| 09/19/2001 | EP1133284A1 New process |
| 09/13/2001 | DE10005084C1 Recovery of rhodium from rhodium complexes, for reuse as a hydroformylation catalyst, comprises extraction with a phosphate or phosphonate, oxidization and treatment with an arylphosphine. |
| 09/12/2001 | CN1070831C Stabilized monomer composition |
| 09/12/2001 | CN1070719C Liquid medium extraction purification method |
| 09/11/2001 | US6288299 Method for eliminating inhibitors of polymerization of monomer mixtures using an optimized alumina |
| 09/11/2001 | US6288097 Stabilized isothiazolinone formulations |
| 09/11/2001 | US6287483 Mixing with aminopyrrolidine compound |
| 09/07/2001 | WO2001064606A1 Method of continuously and selectively separating clathrate and apparatus therefor |
| 09/05/2001 | EP1128881A1 Separation method and device with chromatographic zones with variable length |
| 09/05/2001 | CN1311178A Continuous selection wraping separation method and equipment therefor |
| 09/04/2001 | US6284897 Method for crystallizing tryptophan |
| 08/28/2001 | US6281002 Adding thiospaera to inhibit growth of anaerobically growing microorganisms |
| 08/23/2001 | WO2001061332A1 Reaction and separation methods |
| 08/23/2001 | DE10032137A1 Verfahren zur Herstellung von Phenothiazin-Granulat mit verbesserten Eigenschaften Process for the preparation of phenothiazine granules having improved properties |
| 08/23/2001 | CA2400439A1 Reaction and separation methods |
| 08/22/2001 | EP1125919A2 Stabilized hydroxyalkyl(meth)acrylate |
| 08/22/2001 | EP1124619A1 Process for purifying solid chemical products by dry-sweating |
| 08/22/2001 | CN1069898C Method for purification of N-vinylpyrrolidone by crystallization |
| 08/21/2001 | US6278033 Catalyst and process for purifying streams of materials |
| 08/21/2001 | US6277782 Chiral adsorbents and preparation thereof as well as compounds on which the adsorbents are based and preparation of these compounds |
| 08/21/2001 | CA2194076C Process and device for selective hydrogenation by catalytic distillation including a reaction zone with an ascending cocurrent flow of liquid and gas |
| 08/14/2001 | CA2150712C Chiral adsorbents and preparation thereof as well as compounds on which the adsorbents are based and preparation of these compounds |
| 08/09/2001 | WO2001056956A1 A process for the crystallization of non-sucrose substances |
| 08/09/2001 | WO2001056932A1 Method for recovering rhodium from reaction products of oxosynthesis |
| 08/08/2001 | EP1122232A1 A process for converting perfluoroisobutylene to CF3 CH2 CF3 |
| 08/08/2001 | CN1069305C Method for inhibiting vinyl compound polymerization |
| 07/26/2001 | WO2001053235A1 Inhibition of polymerization of unsaturated monomers |
| 07/26/2001 | WO2000015178A3 Computer implemented pharmacokinetics method and program |
| 07/26/2001 | US20010009963 By storing a tryptophan solution at basic pH and at a temperature of room temperature to 100 degrees Celcius for 0.5 hour to 1 week, followed by crystallization; obtain spherical crystals of large particle size |
| 07/26/2001 | CA2395620A1 Inhibition of polymerization of unsaturated monomers |
| 07/25/2001 | EP0906257B1 Mixtures containing monomers and stabilizers |
| 07/19/2001 | WO2001051919A2 High-throughput formation, identification, and analysis of diverse solid-forms |
| 07/19/2001 | CA2396079A1 High-throughput formation, identification, and analysis of diverse solid-forms |
| 07/18/2001 | EP1115481A1 Compound storage |
| 07/18/2001 | CN1068586C Crystalline polymorphic form of (S.S.S)-N-(1-[2-carboxy-3-(N2-mesyllysylamino)propyl]-1-cyclopenlylcarbonyl) throsine |
| 07/18/2001 | CN1068578C Process for separation by rectification of unsaturated carboxylic acids from solvents |
| 07/11/2001 | EP1114813A2 Method of stabilizing N-oxyl compounds in vinyl compounds |
| 07/11/2001 | EP1114119A1 Vinyl monomer polymerization inhibition using hindered hydroxylamines |
| 07/11/2001 | EP1114014A1 Fluoroalkene-nucleophile adducts for analysis and removal of fluoroalkenes |
| 07/05/2001 | US20010006956 Maltitol crystals of particular forms, crystalline compositions containing them and processes for their preparation |
| 07/05/2001 | US20010006226 A polymerization inhibitor for hydroxyalkyl (meth)acrylate consists of hydroxyalkyl saturated carboxylate and/or alkylene glycol along with phenol compound |
| 07/04/2001 | CN1301690A Method for stabilizing N-oxyl compound in vinyl compound |
| 07/03/2001 | CA2214005C Process and crystal forms of 2-methyl-thieno-benzodiazepine |
| 06/28/2001 | WO2001046112A1 Method for preventing polymerization of vinyl compound |
| 06/28/2001 | US20010005755 Method of stabilizing N-oxyl compounds in vinyl compounds |
| 06/27/2001 | CN1300930A Distilling process for multi-component fluid and process for production of stream with rich argon by low temperature separating process |
| 06/26/2001 | US6252121 Metal-ligand complex catalyzed processes |
| 06/21/2001 | WO2001044173A1 A process for removing trace solvent from a material |
| 06/21/2001 | CA2389571A1 A process for removing trace solvent from a material |
| 06/20/2001 | EP1108965A1 Process for distillation of multicomponent fluid suitable for production of an argon-enriched stream from a cryogenic air separation process |
| 06/14/2001 | WO2001041922A1 Carrier catalytic converter for the selective hydrogenation of alkines and dienes |
| 06/13/2001 | EP0880385B1 Method and vaporizer for vaporizing oxidation-sensitive compounds |
| 06/13/2001 | DE19959064A1 Trägerkatalysator zur Selektivhydrierung von Alkinen und Dienen Supported catalyst for the selective hydrogenation of alkynes and dienes |
| 06/13/2001 | CN1298855A Process for recovering nitrogen-contained organic alkali |
| 06/07/2001 | WO2001040761A1 Inert carriers |
| 06/07/2001 | WO2001040319A2 Inhibition of polymerization of unsaturated monomers |
| 06/07/2001 | WO2001040150A1 Process for the extraction of an aromatic compoung from an aliphatic phase using a non-neutral ionic liavin |
| 06/07/2001 | WO2001040149A2 Inhibition of polymerization of unsaturated monomers |
| 06/07/2001 | WO2001039877A1 Inert carriers |
| 06/06/2001 | CN1297879A Hydroxyal condensation process |
| 06/05/2001 | US6240744 Using a distillation column having a partitioned section to recover components of different volatilities, minimizing vapor and liquid maldistribution |
| 06/05/2001 | CA2101525C Inhibiting popcorn polymer formation with sulfur-containing compounds |
| 06/05/2001 | CA2079473C Removal of nitrogenous components of a hydrocarbon feedstream |
| 05/31/2001 | DE19956410A1 Verfahren zur Durchführung von Aldolkondensationen Method for carrying out aldol condensations |
| 05/30/2001 | EP1103538A1 Process for carrying out aldolcondensations |
| 05/30/2001 | CN1066452C Crystalline cephem acid addition salts and processes for their preparation |
| 05/29/2001 | US6239301 Using a cysteine derivative |
| 05/25/2001 | WO2001036078A1 Method for the production of particles |
| 05/24/2001 | US20010001801 Column chromatographic separation of vitamin D3 or previtamin D3 from a mixture with dehydrocholesterol, lumisterol, and tachysterol using carbon dioxide as mobile phase and silica gel as stationary phase |
| 05/24/2001 | CA2326779A1 Process for carrying out aldol condensations |
| 05/23/2001 | CN1296497A Method for reducing the C1-C2-aldehyde content formed from compounds with-CH2-CHR-O or -CH2-Ch(OH)-groups |
| 05/23/2001 | CN1296469A Improved separation processes |
| 05/23/2001 | CN1066143C Stabilization of non-halogenated 3-isothiazolones in aggressive systems |
| 05/16/2001 | CN1295549A Improved separation processes |
| 05/16/2001 | CN1295058A Distillation method of solution with easy-to-polymerize material |
| 05/16/2001 | CN1295055A Tower processing method and equipment |
| 05/09/2001 | EP1097985A1 A Method of chromatographic isolation for non-glyceride components |
| 05/09/2001 | EP1097742A1 Distillation process for easily polymerizable substance-containing solution |
| 05/09/2001 | EP1097741A2 Column treating process and apparatus therefor |
| 05/09/2001 | CN1065536C Process and crystal form of 2-methyl-thieno-benzodiazepine |
| 05/02/2001 | EP1095941A1 Process and crystal forms of 2-methyl-thieno-benzodiazepine |
| 05/02/2001 | EP1095006A1 Derivatives of 1-oxyl-4-hydroxy-or 4-amino-2,2,6,6-tetramethylpiperidine as polymerization inhibitors for (meth) acrylate monomers |
| 05/02/2001 | EP1094891A1 Preparation of an organic compound by a condensation reaction |
| 05/01/2001 | US6225385 Oligomeric stabilizer mixture |