Patents
Patents for C07B 63 - Purification; Separation specially adapted for the purpose of recovering organic compounds; Stabilisation; Use of additives (4,057)
10/1985
10/15/1985US4547620 With hydrotalcite
10/09/1985EP0157365A2 Separation agent comprising polysaccharide carbamate
10/09/1985EP0157364A2 Separation agent comprising aliphatic or aromatic ester of polysaccharide
10/02/1985EP0156382A2 Separation agent comprising acyl-or carbamoyl-substituted polysaccharide
09/1985
09/25/1985EP0155637A2 Separation agent
09/25/1985EP0155441A1 A process for separating nitration isomers of substituted benzene compounds
08/1985
08/07/1985EP0150849A2 Agent for separation
07/1985
07/24/1985EP0149343A1 Preparation of zeolite coated substrates
07/16/1985CA1190501A1 Removal of pcbs and other halogenated organic compounds from organic fluids
07/10/1985EP0147942A2 Extraction of substances from aqueous solution
07/09/1985US4528006 Apparatus for the continuous desublimination of vapors of subliming substances
06/1985
06/19/1985EP0144956A2 Process and apparatus for regenerating a solvent
06/12/1985EP0144200A2 Separating organic compounds from aqueous liquids
05/1985
05/08/1985EP0139945A2 Process for preparing solid chemical compositions from liquid starting materials
05/07/1985US4515695 Extraction of substances from aqueous solution
04/1985
04/30/1985US4514304 Using amphoteric block ion exchange resin
04/17/1985EP0137214A1 Method of extraction of form labile fluid masses
04/16/1985US4511710 Halide removal from fluid organic materials
04/02/1985US4508865 S-(4-Hydroxyphenyl)thiocarboxylic ester antioxidants
03/1985
03/13/1985EP0134194A2 S-(4-hydroxyphenyl)thioesters
03/05/1985US4503276 Process for separating nitration isomers of substituted benzene compounds
01/1985
01/08/1985US4492613 Methanol, cyclohexane
10/1984
10/17/1984EP0121776A1 Resolving agent
09/1984
09/12/1984EP0118092A1 Process for removing a halogen component derived from a catalyst from an organic compound containing said halogen component
06/1984
06/05/1984US4452994 Complexing prostaglandins, steroids and subsequent decomposition
05/1984
05/30/1984EP0109486A2 Recovery of components of a binary azeotrope
11/1983
11/29/1983US4417977 Removal of PCBS and other halogenated organic compounds from organic fluids
11/22/1983CA1157419A1 Process and apparatus for separating organic liquid solutes from their solvent mixtures
04/1983
04/06/1983EP0075817A2 Process for the separation of liquid mixtures which contain hydrogenation products of citral by distillation
03/1983
03/08/1983US4376216 Process for the purification of photographic developer substances
01/1983
01/04/1983CA1138873A1 Watersoluble derivatives of 6,6'-methylene- bis-(2,2,4-trimethyl-1,2-dihydroquinoline) and process for the preparation thereof
10/1982
10/26/1982US4356306 Water-soluble derivatives of 6,6'-methylene-bis-(2,2,4-trimethyl-1,2-dihydroquinoline)
09/1982
09/14/1982US4349415 Process for separating organic liquid solutes from their solvent mixtures
08/1982
08/17/1982CA1129876A1 Method of purifying readily polymerisable vinyl monomers
08/10/1982US4343744 Process for separating a specified component contained in a mixture of multiple fatty components from the mixture thereof
04/1982
04/06/1982US4323431 Controlled pressure in a continuous rectification process
09/1981
09/22/1981CA1109483A1 Method for isolating insect sex pheromones
04/1981
04/14/1981US4261798 Method of purifying readily polymerizable vinyl monomers
09/1980
09/30/1980CA1086777A1 Process for removing unwanted acid substances from reaction products
09/02/1980CA1084916A1 Process for purifying an aqueous solution
08/1980
08/06/1980EP0014041A1 Method of purifying readily polymerisable vinyl monomers
05/1980
05/06/1980CA1077190A1 Stabilized adhesive and curing compositions
04/1980
04/08/1980CA1075166A1 Sorption of weak organic acids from water by polyurethane
10/1979
10/09/1979US4170601 Selectively forming inclusion complex with urea
08/1979
08/07/1979CA1060135A1 Stabilized polymerizable compositions
07/1979
07/10/1979US4160675 Process for purifying an aqueous solution
06/1979
06/12/1979US4158027 Biphenol derivatives used as polymerization inhibitors
05/1979
05/29/1979CA1055520A1 Process for the odor removal of malodourous sulfur containing olefinic derivatives
02/1979
02/27/1979US4141799 Process for the purification of high-melting organic products
09/1978
09/26/1978US4116955 Inclusion complex compound, process for its production, and method for its use
09/05/1978US4112019 Bisphenol polymerization inhibitor
12/1977
12/06/1977US4061565 Sorption of weak organic acids from water by polyurethane
11/1977
11/01/1977US4056444 Vacuum separation of mixtures with similar boiling points
09/1977
09/20/1977US4049731 Vinyl monomers, biphenol derivative as polymerization inhibitor
07/1976
07/13/1976US3969196 Process for the separation of mixtures of substances
04/1976
04/27/1976US3953360 Preparation of selective adsorbing particles
03/1976
03/23/1976US3945987 Carbamide adducts of polymetalophosphamate
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