| 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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| 05/16/1995 | US5415681 Membranes for gas separation and withdrawal |
| 05/11/1995 | WO1995012445A1 Process and device for separating a mixture |
| 05/11/1995 | CA2165825A1 Method and device for the separation of a mixture |
| 05/10/1995 | EP0652044A1 Process for pyrifiying organic synthesis compounds |
| 05/09/1995 | US5413708 Push column chromatography apparatus |
| 05/04/1995 | DE4438402A1 Process and apparatus for separating a mixture |
| 05/02/1995 | US5412095 Terazosin monohydrochloride and processes and intermediate for its production |
| 04/27/1995 | WO1995011216A1 A process for separating lipophilic compounds |
| 04/27/1995 | CA2174426A1 A process for separating lipophilic compounds |
| 04/26/1995 | CN1028293C Process for treating amides |
| 04/25/1995 | US5409677 Contacting weak acid solution containing radionuclide with ligand which preferentially forms complex with radionuclide over precursor element, separating, releasing radionuclide |
| 04/25/1995 | US5409505 Method and apparatus for crystallization of organic matter |
| 04/20/1995 | DE4334790A1 Process for the preparation of trans-trans-4,4'-diaminodicyclohexylmethane |
| 04/19/1995 | EP0648751A1 Process for separating isomers of azolylmethylcyclopentanol derivatives |
| 04/19/1995 | EP0648727A1 Process for the purification of 1,1,1,2-Tetrafluorethane |
| 04/14/1995 | CA2117928A1 Process for preparing trans-trans-4,4'-diamino-dicylcohexy lmethane |
| 04/13/1995 | WO1995009907A1 Chemical separation using crystals of biological macromolecules |
| 04/11/1995 | US5405988 9-substituted bicyclo[3.3.0]octane derivatives, process for their production and their pharmaceutical use |
| 04/11/1995 | US5405893 Stabilizes organic materials against thermal, oxidative, actinic induced degradation |
| 04/06/1995 | WO1995009243A1 METHOD OF PRODUCING α,α-TREHALOSE |
| 04/06/1995 | CA2150256A1 Method of producing .alpha.,.alpha.-trehalose |
| 04/05/1995 | EP0593639B1 Pyrrolidine and thiazolidine derivatives, preparation thereof and drugs containing same |
| 03/29/1995 | EP0645362A1 Process for producing highly purified acetic acid |
| 03/29/1995 | EP0645167A1 Process for obtaining pharmacological active compounds from complex substance mixtures |
| 03/29/1995 | EP0644865A1 Supercritical separation of isomers of functional organic compounds at moderate conditions |
| 03/29/1995 | CN1100714A Nitrosamine inhibition |
| 03/21/1995 | US5399756 Process for the production of liquid amine adducts of fluorine-containing amides |
| 03/15/1995 | EP0643058A1 Crystals of an antimicrobial compound |
| 03/14/1995 | US5397571 Co-extraction of azadirachtin and neem oil |
| 03/07/1995 | US5396004 Diamine, hydroxylamine |
| 03/07/1995 | US5395985 Compound and separating agent |
| 02/28/1995 | US5393896 Treating ground yew parts with water, separating aqueous solution, extracting with organic solvent, desolventizing, crystallizing, isolating |
| 02/23/1995 | WO1995005387A1 Gamma crystalline modification of 2,2',2'-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'-diyl)phosphite] |
| 02/23/1995 | WO1995005361A1 METHOD OF OBTAINING A PHYSICALLY STABLE CRYSTALLINE η-MODIFICATION OF PARA-AMINOBENZENE SULPHANILAMIDE |
| 02/23/1995 | CA2168366A1 Gamma crystalline modification of 2,2'2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra- tert-butyl-1,1'-biphenyl-2,2'-diyl)phosphite] |
| 02/16/1995 | DE4327524A1 Process and apparatus for isolating impurities from multicomponent exhaust gas streams in a plurality of stages |
| 02/15/1995 | EP0638059A1 Process for the preparation of 3(s)-methylheptanoic acid and intermediates therefor |
| 02/14/1995 | US5389126 Circulating liquid around loop formed by tank and gas stripper, passing gas stream to membrane separation step |
| 02/07/1995 | US5387703 Process and intermediate for the purification of oxytetracycline |
| 02/02/1995 | WO1995003268A1 Process for recovering organic acids |
| 02/02/1995 | WO1995003263A1 Method for inhibiting the polymerization of vinyl aromatics |
| 02/02/1995 | DE4325484A1 Process for the separation of mixtures of m- and p-dichlorobenzene |
| 02/02/1995 | CA2167913A1 Process for recovering organic acids |
| 02/02/1995 | CA2166866A1 Method for inhibiting the polymerization of vinyl aromatics |
| 02/01/1995 | EP0636607A1 Method of crystallising methionine |
| 02/01/1995 | EP0636606A1 Process for the preparation of liquid amine-adducts of amides containing fluorinated groups |
| 01/30/1995 | CA2128792A1 A process for the production of liquid amine adducts of fluorine-containing amides |
| 01/25/1995 | EP0634995A1 Process and intermediate for the purification of oxytetracycline. |
| 01/25/1995 | EP0406424B1 Process for recovering crystals from slurry |
| 01/11/1995 | EP0633239A1 Recovery of organic acid salts from impure process streams by addition of bases |
| 01/10/1995 | US5380892 Clathrates |
| 01/07/1995 | CA2126368A1 Recovery of organic acid salts from impure process streams by addition of bases |
| 01/05/1995 | WO1995000207A1 Method of decomposing halogenated aromatic compound |
| 01/05/1995 | CA2142912A1 Method of decomposing halogenated aromatic compounds |
| 01/03/1995 | US5378360 Push column and chromatography apparatus |
| 01/03/1995 | US5378359 Push column and chromatography method |
| 12/27/1994 | EP0644865A4 Supercritical separation of isomers of functional organic compounds at moderate conditions. |
| 12/21/1994 | EP0629680A1 Process for separating high purity durene |
| 12/20/1994 | US5374771 Process for the preparation of high-purity deferoxamine salts |
| 12/07/1994 | EP0626976A1 Preparation of surface-functional polymer particles. |
| 12/06/1994 | US5371313 Dechlorination or debromination from brominated or chlorinated hydrocarbons contained in unsaturated mono or di-olefinic hydrocarbon stream by contacting with mixed calcium oxide at controlled temperature from 130 to 170 degree C |
| 11/29/1994 | US5369215 Depolymerization method for resource recovery from polymeric wastes |
| 11/24/1994 | DE4414773A1 Processes for stabilising vinylic monomers against uncontrolled polymerisation, and protected surfaces |
| 11/23/1994 | EP0625523A1 Cis-oxalato(trans-L-1,2-cyclohexanediamine) Pt(II) complex having high optical purity and process of preparing same |
| 11/23/1994 | EP0625501A1 Method of reducing the impurity level in aqueous monomer solutions |
| 11/22/1994 | US5367104 Ion exchanging an organic compound to remove metals |
| 11/18/1994 | CA2123388A1 Method of reducing impurities in aqueous monomer solutions |
| 11/17/1994 | EP0624578A1 Purification of propylene oxide |
| 11/16/1994 | CN1095069A Novel process |
| 11/15/1994 | US5364969 Phenolic antioxidant and a benzotriazole ultraviolet absorber |
| 11/15/1994 | US5364947 Process for separating cephalomannine from taxol using ozone and water-soluble hydrazines or hydrazides |
| 11/08/1994 | US5362398 Filtration |
| 11/08/1994 | US5361589 Precooling for ethylene recovery in dual demethanizer fractionation systems |
| 11/02/1994 | EP0622351A1 4-(4-(4'-tert.butylphenyl)-2-hydroxybutoxy)-benzoique acid and its utilization |
| 11/02/1994 | EP0622109A1 Process for deodorizing a formulation comprising at least one compound bearing a thiol group and deodorized formulation thus obtained |
| 10/30/1994 | CA2122193A1 Lifibrol and its use |
| 10/27/1994 | WO1994024141A1 Method for producing sugar surfactants with an improved scent |
| 10/27/1994 | WO1994024092A1 Fatty-acid amides with improved cold-water dispersibility |
| 10/26/1994 | EP0621064A1 Device for separating and purifying materials by melt crystallization |
| 10/26/1994 | CN1026318C Method for recovering crystals from crystal-containing slurry |
| 10/25/1994 | US5358611 Method of reducing impurities in aqueous monomer solutions |
| 10/20/1994 | CA2102853A1 Plural stage purification of propylene oxide |
| 10/19/1994 | EP0493495B1 Method for distillative separation of alcohols |
| 10/13/1994 | WO1994022794A1 Continuous process for purifying perfluorochemical compositions |
| 10/12/1994 | EP0619308A1 Crystalline structures of the hydrogen chloride salt of 2-amino-5-nitro-pyridinium, process for their preparation and an electrooptical device with such structures |
| 10/05/1994 | CN1026107C Substituierte phenole als stabilisatoren |
| 10/04/1994 | US5352815 Agent for suppression and interception of mailard reaction |
| 10/04/1994 | US5352785 Mixing with alkanol stabilizer and aqueous solution of base to form fluoride salt by product and fluoroolefins and finally alkoxyvinyl ethers |
| 09/28/1994 | EP0617119A2 Co-extraction of azadirachtin and neem oil |
| 09/28/1994 | EP0616991A1 Process for the preparation of organic compounds polluted by dissolved metallic compounds |
| 09/28/1994 | EP0449865B1 Improved dry neutralization process for liquid organic phases |
| 09/27/1994 | US5350847 Oxidative purification of caprolactam |
| 09/27/1994 | US5350521 Process for separating catalysts from organic solutions, by means of semipermeable membranes |
| 09/20/1994 | US5348656 Optically active bead polymers containing fillers |
| 09/15/1994 | WO1994020493A1 Method for preparing n-methyl 2-(3-pyridyl) (1r,2r)-2-tetrahydrothiopyrancarbothioamide-1-oxide |
| 09/15/1994 | WO1994020187A1 Improved distillative separation process by steaming for mixtures of multiple substances |
| 09/15/1994 | WO1994020143A1 Optical isomerization inhibitor |
| 09/15/1994 | DE4407947A1 Neue Polymethylpiperidinverbindungen, die Silangruppen enthalten und zur Verwendung als Stabilisatoren für organische Materialien geeignet sind New Polymethylpiperidinverbindungen which contain silane groups and are suitable for use as stabilizers for organic materials are |
| 09/15/1994 | CA2157660A1 An improved process for the distillation-based separation of multicomponent mixtures by steaming |
| 09/15/1994 | CA2157383A1 Optical isomerization inhibitor |