| 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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| 05/24/2005 | US6897331 Fluorous triphase and other multiphase systems |
| 05/18/2005 | CN1616600A Method for highly refining wood and bamboo vinegar liquid |
| 05/18/2005 | CN1616381A Process for preparing Erigeron breviscapus active component |
| 05/18/2005 | CN1202050C Polymerization inhibiting method for ethenyl chemical compound |
| 05/17/2005 | CA2278455C Amine heat stable salt neutralization having reduced solids |
| 05/11/2005 | CN1615303A Improved purification of 4, 4'(5')-di-t-butylcyclohexano-18-crown-6 |
| 05/11/2005 | CN1200916C Preparation method of total saponin and flavone extract in notoginseng leaf |
| 05/04/2005 | EP1472188A4 Purification of onium hydroxides by electrodialysis |
| 05/04/2005 | EP0958268B1 Spherical molecular assembly |
| 05/04/2005 | CN1612844A Purification of onium hydroxides by electrodialysis |
| 05/04/2005 | CN1612780A Method for the production of particles |
| 04/28/2005 | US20050090704 Solvent extraction |
| 04/27/2005 | CN1198592C Process for producing particles with converted amorphous and/or meta-stable drystalline region into crystalline state |
| 04/14/2005 | WO2004031105A3 Use of a33 antigens and jam-it |
| 04/14/2005 | DE19919490B4 Verfahren zur Abtrennung organischer Substanzen aus einem wässrigen Gemisch A method for separating organic substances from an aqueous mixture |
| 04/12/2005 | US6878239 Contacting a liquid containing a polymerization inhibitor with the compound directly in the vacuum section of a distillation system; especially for (meth)acrylic acid and (meth)acrylates |
| 04/12/2005 | US6878183 Sublimation purifying method and apparatus |
| 04/07/2005 | WO2005030907A1 Radical interceptors as stabilizers of polymerizable compounds |
| 03/31/2005 | US20050070717 Halogen-free ionic liquids |
| 03/30/2005 | EP1518916A1 Scavenger of free radicals as stabilizers of polymerisable compounds |
| 03/30/2005 | CN1600755A General flavones of hawthorn fruit, preparation method and application |
| 03/29/2005 | US6872314 Comprises simulated moving bed containing solids with different water absorption characteristics; for compounds produced by fermentation, biomass extraction, and biocatalytic/enzymatic processes |
| 03/24/2005 | US20050065060 cleaning solvent for electronic parts, precision machinery components; extraction solvent |
| 03/23/2005 | EP1515703A1 Pharmaceutical compositions with improved dissolution |
| 03/23/2005 | CN1597678A Extraction method of hawthorn leaf total flarone |
| 03/22/2005 | CA2350363C Process and system for decomposing pollutants |
| 03/17/2005 | WO2005023732A1 Dewatering process |
| 03/16/2005 | CN1594247A Yew genus plant extract and its extraction method and application |
| 03/16/2005 | CN1594246A Rhizoma Anemarrhenae total phenol extract, its preparation method and application |
| 03/16/2005 | CN1193001C Separation preparing method for aloe-emodin and parietic acid |
| 03/09/2005 | CN1589845A Preparation technology of crataegus total phenolic acid portion and application |
| 03/03/2005 | WO2005019137A1 Method for extracting impurities using ionic liquids |
| 03/03/2005 | US20050045560 Comprises simulated moving bed containing solids with different water absorption characteristics; for compounds produced by fermentation, biomass extraction, and biocatalytic/enzymatic processes |
| 03/02/2005 | EP1509511A1 Manufacture of ascorbic acid esters |
| 03/02/2005 | EP1509320A1 Adsorbent bed loading and regeneration |
| 03/02/2005 | CN1589247A Method for preparing a composition containing at least an internal dehydrating product of a hydrogenated sugar |
| 03/02/2005 | CN1589246A Method for extracting and method for purifying effective substance |
| 03/02/2005 | CN1587240A New method for preparing and separating integrately antibiotic medicine in ionic liquid double water phase |
| 03/02/2005 | CN1587239A Method for recovering toluene, butanone and dimethyl formamide from waste gas in wet synthetic leather production |
| 03/01/2005 | US6861512 Separation of olefinic isomers |
| 02/23/2005 | EP1053220B1 Improved separation processes |
| 02/23/2005 | CN1583749A Process for extracting amarylid alkaloid from natural plant |
| 02/23/2005 | CN1190394C Pineapplie leaf extract and its preparation method and application |
| 02/22/2005 | US6858434 Using thin layer chromatography for rapid preparation and screening of lead structures for drug candidates; rational drug design |
| 02/16/2005 | CN1580043A Anti malignant tumour southern radix bupleuri extract preparing method |
| 02/09/2005 | EP1453813A4 IMPROVED PURIFICATION OF 4, 4'(5')-DI- i t /i -BUTYLCYCLOHEXANO-18-CROWN-6 |
| 02/09/2005 | CN1578756A Process for the preparation of optically pure or enriched racemic tetralone |
| 02/03/2005 | US20050025791 Pharmaceutical compositions with improved dissolution |
| 02/02/2005 | EP1501782A1 Improvements in or relating to separation technology |
| 02/02/2005 | CN1572755A Cherry leaf extract and its preparation method |
| 02/01/2005 | US6849758 Treatment of mixtures that contain at least one compound with at least one ethylenically unsaturated group |
| 01/27/2005 | US20050020857 Method for the separation of acids from chemical reaction mixtures by means of ionic fluids |
| 01/26/2005 | EP1499423A2 A separation method and separation apparatus of isotopes from gaseous substances |
| 01/19/2005 | EP1272568B1 Recovery of compounds using a natural adsorbent |
| 01/19/2005 | CN1185043C Method for separating organic substances from aqueous mixture |
| 01/13/2005 | WO2005003259A1 Acid treatment of a fischer-tropsch derived hydrovarbon stream |
| 01/13/2005 | US20050010076 Process for removing polar impurities from hydrocarbons and mixtures of hydrocarbons |
| 01/12/2005 | CN1563075A Method of preparing general phenolic acid of red sange root for treating hepatic fibrosis |
| 01/12/2005 | CN1562989A Method for purifying compound of anhydrides aromatic carboxylic acid |
| 01/12/2005 | CN1562919A Technique for preparing general flavone from Guanyelianqiao |
| 01/12/2005 | CN1184234C Preparation of stable zinc insulin analog crystals |
| 01/06/2005 | US20050004239 Removing contaminants, fouling agents and/or plugging precursors prior to hydroprocessing; extending catalyst life |
| 01/05/2005 | EP1124619B1 Process for purifying solid chemical products by dry-sweating |
| 01/05/2005 | CN1560005A Process for extracting compound of hemp phenol from hemp seed oil |
| 01/05/2005 | CN1560000A Extraction process for total phenolic acid of salvia root and pharmacutical application thereof |
| 01/05/2005 | CN1183094C Method for stabilizing N-oxyl compound in vinyl compound |
| 01/05/2005 | CN1183062C Process for separating o-and p-substituted benzene compounds |
| 01/05/2005 | CN1182903C Sonic impact jet crystallization apparatus and process |
| 01/04/2005 | CA2187502C Sweetener salts |
| 12/30/2004 | US20040266999 Method of extracting and method of purifying an effective substance |
| 12/30/2004 | US20040266892 Method for the production of particles |
| 12/29/2004 | EP1171212B1 Solvent extraction process |
| 12/29/2004 | CN1182098C Purifier and purifying method for polymerizable organic compounds |
| 12/28/2004 | US6835288 Method for preventing undesired polymerization in a mixture of substances containing ethylenically unsaturated compounds |
| 12/28/2004 | CA2105200C Compositions and methods for inhibiting vinyl aromatic monomer polymerization |
| 12/22/2004 | CN1181056C 4-acylamino piperidin-N-oxides |
| 12/22/2004 | CN1181020C Organic matter recovering and halogen acid refining process of industrial acid effluent containing halogen hydride |
| 12/15/2004 | CN1554656A Yunnan tolal biological coronaridine and its salts and preparing method and use |
| 12/15/2004 | CN1554626A Eudesmane compounds, preparing method and use in preparing medicinal composition |
| 12/15/2004 | CN1554625A Total flavone and its extracting method |
| 12/15/2004 | CN1554624A Extracting process for epimedium total flavone |
| 12/08/2004 | CN1553903A Method of storing tetrazolium compound, stabilizer for use therein, and tetrazolium compound reagent solution stored by the method |
| 12/08/2004 | CN1178893C Process for inhibiting polymerizatino of easy polymerized compounds |
| 12/08/2004 | CN1178743C Carrier catalyst for selective hydrogenation of alkines and dienes |
| 12/02/2004 | WO2004103516A1 Cross-linked polyimine and use thereof for the immobilization of acidic or electrophilic compounds present in a solution |
| 12/02/2004 | CA2525728A1 Cross-linked polyimine and use thereof for the immobilization of acidic or electrophilic compounds present in a solution |
| 12/01/2004 | EP1481674A1 Process for recovering statin compounds from a fermentation broth |
| 12/01/2004 | EP1480956A1 Halogen-free ionic liquids |
| 11/25/2004 | WO2004007407A3 Fluorous tagging and scavenging reactants and methods of synthesis and use thereof |
| 11/25/2004 | WO2003076053A3 A separation method and separation apparatus of isotopes from gaseous substances |
| 11/24/2004 | CN1548051A Tillering onion extract and its application |
| 11/24/2004 | CN1548037A Asafetida extract and its pharmaceutical use |
| 11/23/2004 | US6821339 Process for the crystallization of non-sucrose substances |
| 11/17/2004 | EP1476408A1 Method for separating substances by extraction or by washing them with ionic liquids |
| 11/17/2004 | CN1547561A Method for the production of a purified melt of at least one monomer |
| 11/11/2004 | WO2004081073A3 Methods for selectively removing counterions from compounds and compounds derived from such methods |
| 11/11/2004 | US20040225150 Methods for selectively removing counterions from compounds and compounds derived from such methods |
| 11/10/2004 | EP1181089B1 Method for separating organic substances from an aqueous mixture |
| 11/10/2004 | CN1544399A Pinellia tuber total organic acid and extraction method, and its use in preparing drugs |
| 11/10/2004 | CN1175234C Distilling process for multi-component fluid and process for production of stream with rich argon by low temperature separating process |