| 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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| 01/13/1993 | EP0522041A1 Removal of nitrogenous components of a hydrocarbon feedstream. |
| 01/13/1993 | CA2073112A1 Process for separating off aliphatic straight-chain compounds having terminal functional groups |
| 01/07/1993 | EP0521675A1 Supercritical extraction of taxanes |
| 12/29/1992 | US5174899 Process for separating organometallic compounds and/or metal carbonyls from their solutions in organic media |
| 12/16/1992 | EP0518155A1 Process for the purification of crude 2-mercaptobenzothiazole |
| 12/12/1992 | CA2070737A1 Process for the purification of crude 2-mercaptobenzo-thiazole |
| 12/08/1992 | CA1311245C Process for the separation of toluene diisocyanate contained in process residues |
| 11/24/1992 | US5166453 Reacting zinc and iodide compound in acetic acid solution; separation |
| 11/19/1992 | EP0513604A1 Labeling of hydrocarbons |
| 11/11/1992 | EP0512777A1 Purification of propylene oxide by liquid extraction |
| 11/10/1992 | CA2068277A1 Purification of propylene oxide by liquid extraction |
| 11/04/1992 | EP0511612A2 Method for the purification of chlorofluorohydrocarbons |
| 11/04/1992 | CA2067861A1 Labeling of hydrocarbons |
| 10/28/1992 | EP0511168A1 Indoline hydrochloride salts and process for their preparation |
| 10/28/1992 | CA2067078A1 Process for the purification of chlorofluorohydrocarbons |
| 10/27/1992 | CA2067040A1 Indoline hydrochloride salts and process for their preparation |
| 10/27/1992 | CA1309418C Preparation of methacrylic acid |
| 10/20/1992 | US5157205 Solutions of caustic and sulfite |
| 10/06/1992 | US5152899 Purification of carboxylic acid salt solutions by permeation through semipermeable membrane of polymeric perfluorosulfonic acid salts |
| 10/03/1992 | WO1992013041A1 Inhibiting popcorn polymer formation with esters of inorganic acids |
| 09/30/1992 | EP0506374A1 Process for purification of ethylene compound having fluorine-containing organic group |
| 09/30/1992 | EP0506314A2 Process for preparing vinylically-unsaturated compounds |
| 09/30/1992 | EP0505807A1 Olefin purification process |
| 09/29/1992 | CA2064302A1 Process for preparing vinylically-unsaturated compounds |
| 09/22/1992 | CA1307794C Inhibition of polymerization fouling during distillation of monomers in the presence of sulfur oxides |
| 09/17/1992 | WO1992015527A1 Crystalline potassium thionicotinamide-adenine dinucleotide phosphate and production thereof |
| 09/16/1992 | EP0503332A1 Process for extracting pyridine and quinoline dicarboxylic acids from aqueous media |
| 09/15/1992 | CA1307536C Method for purifying alkoxysilane |
| 09/14/1992 | WO1992016276A1 PROCESS FOR PURIFICATION OF HMG-CoA REDUCTASE INHIBITORS |
| 09/14/1992 | CA2104232A1 Process for purification of hmg-coa reductase inhibitors |
| 08/26/1992 | EP0500038A2 Process for producing aliphatic amines |
| 08/11/1992 | US5137638 Separation agent comprising acyl- or carbamoyl-substituted polysaccharide |
| 08/06/1992 | WO1992012949A1 Inhibiting popcorn polymer formation with sulfur-containing compounds |
| 08/04/1992 | US5136083 Multistep melt crystallization |
| 08/04/1992 | US5136052 Reacting maleic anhydride with aniline in presence of p-toluenesulfonic acid |
| 07/30/1992 | WO1992012948A1 Inhibiting popcorn polymer formation with alkyl halides |
| 07/30/1992 | WO1992012947A1 Inhibiting popcorn polymer formation with compounds incorporating group iv elements |
| 07/29/1992 | EP0496496A1 Membrane dehydration process |
| 07/23/1992 | WO1992012180A1 Cyclodextrin-epichlorohydrin polymers for separating and adsorbing substances |
| 07/22/1992 | EP0494967A1 Chiral separation media |
| 07/21/1992 | CA1305445C Process for the continuous separation of water from mixtures with organic substances |
| 07/19/1992 | CA2051497A1 Membrane process |
| 07/14/1992 | US5130465 Michael addition of an acrylic acid to a phenol and vacuum rectification purification after removal of basic catalyst |
| 07/07/1992 | US5128490 Distillation, cyclization in presence of phyllosilicate |
| 07/07/1992 | US5128120 Quantitative determination of compounds in blood or urine |
| 07/07/1992 | US5127997 Purification of propylene oxide by liquid extraction |
| 07/01/1992 | EP0492593A1 Improvements in stabilized isothiazolinone formulations |
| 06/23/1992 | US5124500 Process for removing hydrogen from the presence of organic compounds |
| 06/17/1992 | EP0489773A1 Process for separating mixtures of partially fluorinated or perfluorinated hydrocarbon compounds. |
| 06/09/1992 | US5120900 Integrated solvent extraction/membrane extraction with retentate recycle for improved raffinate yield |
| 06/09/1992 | US5120881 Adsorption onto zeolite |
| 06/06/1992 | WO1992010448A1 Integrated solvent extraction/membrane extraction with retentate recycle for improved raffinate yield |
| 06/06/1992 | CA2096656A1 Integrated solvent extraction/membrane extraction with retentate recycle for improved raffinate yield |
| 05/13/1992 | CN1016607B Method for preparing crystalline cefadroxil monoltyrate |
| 05/05/1992 | US5110976 Insecticidal composition comprising more than one active ingredient |
| 04/28/1992 | US5108549 Using membranes |
| 04/28/1992 | CA1299449C Composite separation membranes and the preparation and use thereof |
| 04/16/1992 | WO1992006058A1 Supercritical fluid extraction restrictor and collection system |
| 04/15/1992 | EP0282531B1 Stable crystalline form of an intermediate product of cephalosporine |
| 04/14/1992 | US5104547 Separating materials for chromatography comprising cyclodextrin chemically bonded to a support via a carbamic acid group |
| 04/14/1992 | US5104543 Liquid chromatography using cellulose triacetate stationary phase and polar solvent mobile phase |
| 04/08/1992 | EP0479419A1 Process for removing trace metals |
| 04/08/1992 | EP0479066A2 Methods of preparing stable injectable soluble forms of beta-carotene |
| 04/03/1992 | CA2093220A1 Supercritical fluid extraction restrictor and collection system |
| 04/03/1992 | CA2051978A1 The preparation of stable injectable .beta.-carotene solubilizates |
| 03/25/1992 | EP0476493A1 Acyclic tocotrienol analogs in the treatment of hypercholesterolemia and hyperlipidemia |
| 03/24/1992 | US5099082 1,1,1,3,3-pentafluorobutane and 1,1-dichloro-1-fluoroethane separated by solvent extraction |
| 03/24/1992 | US5099081 1,1,1,3,3-pentafluorobutane and 1,1-dichloro-1-fluoroethane separated by liquid extraction with alcohol |
| 03/24/1992 | US5098893 Storage of materials |
| 03/24/1992 | US5098576 Adsorbents for chromatography and adsorption processes |
| 03/18/1992 | EP0475629A1 Process for the purification of 4-acetoxystyrene |
| 03/18/1992 | EP0475353A1 Stabilisation of CF3-CHCl2 or CClF2-CHClF or their mixture against reactions with refrigerant oils |
| 03/15/1992 | CA2050514A1 Acyclic tocotrienol analogs in the treatment of hypercholesterolemia and hyperlipidemia |
| 03/10/1992 | US5095172 Dimerization, synthetic lubricant |
| 03/03/1992 | US5093001 Suction filtration with pressurization; blockage prevention efficiency, durability |
| 03/01/1992 | CA2049241A1 Process for the purification of 4-acetoxystyrene |
| 02/25/1992 | CA1296359C Process for extracting paraffins from their mixtures with alkanesulphonic acids |
| 02/25/1992 | CA1296357C Process for extracting paraffins from their mixtures with paraffinsulphonic acids |
| 02/20/1992 | WO1992002283A1 Chiral separation media |
| 02/18/1992 | US5089138 Separating with an agent comprising an aliphatic ester of a polysaccharide |
| 02/12/1992 | CN1058588A Process for treating amides |
| 02/11/1992 | US5087744 Preparation of methacrylic acid |
| 01/30/1992 | DE4024345A1 Cyclopentenderivate, verfahren zu ihrer herstellung und ihre pharmazeutische verwendung Cyclopentene derivatives, processes for their preparation and their pharmaceutical use |
| 01/28/1992 | WO1992002494A1 Cyclopentane derivatives, process for producing them and their pharmaceutical use |
| 01/28/1992 | CA2088159A1 Cyclopentane derivatives, process for producing them and their pharmaceutical use |
| 01/22/1992 | EP0467848A1 Stabilized monomer compositions |
| 01/21/1992 | US5082955 Complexing with uranyl nitrate |
| 01/15/1992 | EP0465915A1 Device for removing hydrogen by igniting it in a hydrogen, oxygen and vapour containing gaseous mixture which device exhibits a protection against the deposition of low melting fats of high viscosity carried by the vapour |
| 01/14/1992 | WO1992000983A1 Non-corrosive composition and methods useful for the extraction of nucleic acids |
| 01/14/1992 | US5080795 Supported chiral liquid membrane for the separation of enantiomers |
| 01/12/1992 | CA2046665A1 Arrangement with protective effectiveness against the deposition of low-melting greases of high viscosity which are carried along in steam at the removal and ignition of hydrogen in a gas mixture containing hydrogen, oxygen and steam |
| 01/10/1992 | WO1992000799A1 Substance carrying conglomerate |
| 01/08/1992 | EP0464943A1 Process for treating amides |
| 01/08/1992 | CN1057644A Acid-catalyzed fabrication of precursors for use in making polyols and ethylene oxide capping of polyols made using double metal cyanide catalysts |
| 01/02/1992 | EP0463988A2 Process for concentrating or separating mixtures of organic compounds |
| 12/31/1991 | US5076970 Flame retardant n,n'-bis(tetrabromophthalimide) composition |
| 12/27/1991 | EP0462798A2 Release and isolation of O-glycans |
| 12/27/1991 | EP0462796A2 Release and isolation of N-glycans and O-glycans |
| 12/27/1991 | EP0462795A2 Isolation of glycans |
| 12/27/1991 | EP0462794A2 Automated process equipment for cleavage of biomolecules |