| 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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| 07/01/2003 | US6586610 Melting the beeswax, adding activated charcoal so that it absorbs coumafos (O,O'-diethyl-O''-(3-chloro-4-methyl-7-coumarinyl) thiophosphate) and pressure filtering |
| 07/01/2003 | US6586201 Method of chromatographic isolation for non-glyceride components |
| 07/01/2003 | US6585862 Apparatus and method for handling easily polymerizable compound |
| 06/26/2003 | WO2003051796A1 Apparatus and method for purifying an organic electroluminescent material |
| 06/26/2003 | US20030119923 Method for recovering rhodium from reaction products of oxosynthesis |
| 06/26/2003 | US20030118715 Recovery of compounds using a natural adsorbent |
| 06/25/2003 | CN1425323A Method for extracting composite soy bean function factor from high and low temperature degreased bean dregs |
| 06/18/2003 | EP1319643A2 Macromolecular HALS with a definite molecular weight |
| 06/18/2003 | CN1425078A Process for purification of organometallic compounds or heteroato mic organic compounds with a catalyst based on iron and manganese supported on zeolites |
| 06/18/2003 | CN1425077A Process for purification of organometallic compounds or heteroatomic getter alloys |
| 06/17/2003 | US6579442 Methods and compositions for inhibiting polymerization of vinyl monomers |
| 06/17/2003 | US6579328 Preparation from a sterically hindered nitroxy compound and a diazonium salt of an aromatic amine in the presence of a transition metal catalyst |
| 06/12/2003 | US20030109760 Destroying peroxy compounds that might be present |
| 06/05/2003 | WO2002060864A9 Process of obtaining compositions of stable lutein and lutein derivatives |
| 06/05/2003 | US20030105375 An ion-containing compound is admixed with macromolecular crown ether or derivatives to form an extractant/ion complex, and the predetermined extractant/ion complex is separated from the diluent by using the new phase affinity |
| 06/05/2003 | US20030105364 Process for the preparation of optically pure or enriched racemic tetralone |
| 05/30/2003 | WO2003043960A2 IMPROVED PURIFICATION OF 4, 4'(5')-DI-t-BUTYLCYCLOHEXANO-18-CROWN-6 |
| 05/30/2003 | WO2003043959A1 Method for preparing a composition containing at least an internal dehydrating product of a hydrogenated sugar |
| 05/27/2003 | US6570010 Inclusion compounds of vanillyl alcohol derivative in cyclodextrin and compositions containing the same |
| 05/22/2003 | WO2003041832A1 Method for performing the purifying separation of crystals out of their suspension in a mother liquor |
| 05/22/2003 | US20030097028 Distilling a medium containing internal dehydration product to obtain a distillate enriched with this product, purifying; contacting with stabilizing agent; shaping the resulting internal dehydration product of a hydrogenated sugar |
| 05/22/2003 | US20030097017 Inhibitor composition for stabilizing substances capable of free radical polymerization |
| 05/21/2003 | EP1165222A4 Chemical partitioning agents and methods of using same |
| 05/21/2003 | CN1419466A Sublimation purifying method and apparatus |
| 05/15/2003 | WO2003039729A1 Method for the production of particles |
| 05/15/2003 | US20030089305 Sublimation and purification method |
| 05/14/2003 | EP1202785B1 Column chromatography separation method |
| 05/13/2003 | US6563010 Adsorbent bed loading and regeneration |
| 05/13/2003 | US6562232 Fractionating apparatus |
| 05/08/2003 | WO2003037840A1 Process for the preparation of optically pure or enriched racemic tetralone |
| 05/08/2003 | WO2003037835A2 Method for eliminating polarizable impurities from hydrocarbons with ionic liquids |
| 05/08/2003 | CA2464916A1 Process for the preparation of optically pure or enriched racemic tetralone |
| 05/07/2003 | EP0993462B1 Calixarene tubes as cation receptors |
| 05/06/2003 | CA2126180C Isomerisation process |
| 05/01/2003 | US20030080318 Inhibition of polymerization of unsaturated monomers |
| 04/30/2003 | CN1107065C Method of extracting isoflavone, saponin, oligosauharide and protein simultaneously from defatted soybean dregs |
| 04/24/2003 | US20030078444 Fluorous triphase and ther multiphase systems for effecting reactions and/or separation |
| 04/23/2003 | CN1413194A Inhibition of polymerization of unsaturated monomers |
| 04/23/2003 | CN1412163A Preparation method of total saponin and flavone extract in notoginseng leaf |
| 04/23/2003 | CN1412162A Preparation method of total saponin extract in notoginseng leaf |
| 04/17/2003 | US20030073831 Continous separation of preferential compounds from sample; prepare liquid interphases, incubate with sample, recover compound |
| 04/16/2003 | EP1301168A1 Storage-stable compositions of glycerol monoalkyl ethers |
| 04/16/2003 | EP1265684A4 Purification device and purification method |
| 04/10/2003 | WO2003029229A1 Method of storing tetrazolium compound, stabilizer for use therein, and tetrazolium compound reagent solution stored by the method |
| 04/09/2003 | EP1299366A1 Method for producing a phenothiazine granulate with improved properties |
| 04/09/2003 | EP1299308A2 Chemical extraction process |
| 04/09/2003 | CN1409655A Carrier catalyst for selective hydrogenation of alkines and dienes |
| 04/09/2003 | CN1104924C Thermally-managed separation and dewatering processes for recovering acid products |
| 04/03/2003 | WO2003027049A1 Method of extracting and method of purifying an effective substance |
| 04/03/2003 | WO2003027048A2 Dehydration of fluorinated organic compounds |
| 04/02/2003 | EP1296916A1 Method for producing squalene |
| 04/01/2003 | US6542858 Pharmacokinetic-based drug design tool and method |
| 04/01/2003 | US6541652 Process and apparatus for isolating organic substances from a gas mixture in which these substances are present |
| 03/27/2003 | WO2002090299A3 Method for the production of a purified melt of at least one monomer |
| 03/26/2003 | EP1294362A1 Novel process for preparing crystalline particles |
| 03/26/2003 | EP1294359A1 Process for preparing and harvesting crystalline particles |
| 03/26/2003 | CN1405177A Rabdosia lophanthide extractive, natural medicine for treating hepatitis |
| 03/26/2003 | CN1103620C Crystallizing method |
| 03/26/2003 | CN1103558C Sweetener salt |
| 03/25/2003 | US6537467 Such as hydroquinone and/or 4-hydroxy-2,2,6,6-tetramethyl-piperidine grafted onto silica as polymerization inhibitors |
| 03/19/2003 | EP0956141B1 Amine heat stable salt neutralization having reduced solids |
| 03/19/2003 | CN1403451A Balsamiferous biumea general flavone extractive and its extraction process and medicinal application |
| 03/18/2003 | US6534680 Adding to solution containing at least one dicarboxylic acid, before or during crystallization, at least one high molecular weight anionic polyelectrolyte |
| 03/13/2003 | WO2002094884A3 Methods and compositions for inhibiting polymerization of vinyl monomers |
| 03/13/2003 | US20030049161 Treating a blend comprising one or more fouling agents with an N,N-disubstituted amide and under conditions effective to form a dispersion of fouling agents in blend and to prevent fouling agents from depositing on equipment |
| 03/13/2003 | US20030047439 C-nitrosoaniline compounds and their blends as polymerization inhibitors |
| 03/12/2003 | CN1402697A Inhibition of polymerization of unsaturated monomers |
| 03/11/2003 | US6531521 Using light shielding vessel |
| 03/06/2003 | WO2003017930A2 Reagents that facilitate the purification of compounds synthesized on a solid support |
| 03/06/2003 | CA2458393A1 Reagents that facilitate the purification of compounds synthesized on a solid support |
| 03/05/2003 | CN1400199A Method for continuously extracting active component from eucommia leaf |
| 03/04/2003 | US6528669 Recovery of polyunsaturated fatty acids from urea adducts |
| 03/04/2003 | US6528462 Process for inhibiting the emission of hydrogen sulfide and/or mercaptans from sulfurized organic compounds |
| 02/27/2003 | WO2003016268A1 Stabilisation of ethylenically-unsaturated compounds with amidoximes |
| 02/27/2003 | WO2003016246A1 Fluorous nucleophilic substitution of alcohols and reagents for use therein |
| 02/27/2003 | US20030038082 Process for the purification of organometallic compounds or heteroatomic organic compounds with hydrogenated getter alloys |
| 02/25/2003 | US6525147 Decomposing hydrogen peroxide |
| 02/20/2003 | US20030035763 Process for the purification of organometallic compounds or heteroatomic organic compounds with a catalyst based on iron and manganese supported on zeolites |
| 02/19/2003 | CN1397534A Process for purifying raw liquid of bamboo vinegar |
| 02/18/2003 | US6521461 Fluoroalkene-nucleophile adducts for analysis and removal of fluoroalkenes |
| 02/13/2003 | US20030032832 Use of diamines and alkanolamines to inhibit unsaturated monomer polymerization |
| 02/13/2003 | US20030030193 Sublimating and collecting units independently controllable in temperature by electromagnetic induction heating |
| 02/12/2003 | CN1101365C Substance mixturtes containing stablizes and compounds containing vinyl group |
| 02/11/2003 | US6518453 In a process for stabilizing chemical compounds having at least one ethylenically unsaturated bond to undesired free radical polymerization, a nitroxyl radical and a chemical compound containing phosphorus in chemically bonded form are |
| 02/06/2003 | US20030028044 Use of membranes to separate organic liquids having different polarities |
| 02/04/2003 | US6515171 Process for separating an oxidation reaction product and an oxidation catalyst |
| 01/30/2003 | US20030023121 As hydrogenation catalyst to selectively hydrogenate highly unsaturated hydrocarbons |
| 01/29/2003 | EP1278733A1 Process for the preparation of sterically hindered aryloxyamines |
| 01/29/2003 | EP1278712A2 Nitroaromatic solubilizer for nitroxyls in aromatic solvents |
| 01/23/2003 | US20030018222 Sovent extracting the dried marigold flower petals, eluting through an anion exchange resin column, diluting the eluent, crystallization; protecting lutein against deterioration, store for long time |
| 01/21/2003 | US6509494 Distillation mixture of dicyclopentenyl esters |
| 01/16/2003 | WO2002029412A3 Selective binding materials |
| 01/16/2003 | US20030010676 Synergistic mixture of nitroxyl compounds and aliphatic amines under both processing conditions, e.g. increase in fluid viscosity, heating, restricted flow in pipelines and blocking filters; storage stability |
| 01/15/2003 | EP1274879A1 A process for the purification of organometallic compounds or heteroatomic organic compounds with hydrogenated getter alloys |
| 01/15/2003 | EP1274878A1 A process for the purification of organometallic compounds or heteroatomic organic compounds with a catalyst based on iron and manganese supported on zeolites |
| 01/14/2003 | US6506935 Contacting pretreated liquid feed stream with adsorbent comprising zeolite having specified silica to alumina molar ratio and cation exchanged with silver, mercury, copper, lead, thallium and/or palladium to adsorb residual iodine compound |
| 01/14/2003 | US6506701 Polymer-supported quenching reagent covalently reacts with unreacted starting materials |
| 01/09/2003 | WO2003002500A1 Solvents containing cycloalkyl alkyl ethers and process for production of the ethers |
| 01/09/2003 | WO2003002237A2 Use of membranes to separate organic liquids having different polarities |
| 01/09/2003 | US20030008981 Adding aminophenol compound and nitroxyl radical compound for polymerization inhibition of olefins and diolefins |