Patents
Patents for C07C 17 - Preparation of halogenated hydrocarbons (19,929)
07/1998
07/30/1998WO1998032532A1 Amidophosphonium-salt-containing catalyst for halogen-fluorine exchange reactions
07/30/1998WO1998032521A1 Recovery of perfluorinated compounds and hydrofluorocarbon gases using molecular sieve membranes
07/30/1998DE19703111A1 Verfahren zur Herstellung von Styrolen Process for the preparation of styrenes
07/30/1998DE19702282A1 Katalysator für Halex-Reaktionen Catalyst for Halex reactions
07/30/1998CA2278533A1 Catalyst comprising and amidophosphonium salt for halex reactions
07/30/1998CA2275960A1 Recovery of perfluorinated compounds and hydrofluorocarbon gases using molecular sieve membranes
07/29/1998EP0855377A1 Process for the selective removal of organic nitrates from a halogenated organic stream
07/29/1998EP0854899A1 Fluorine-substituted alkenyl liquid crystalline compounds
07/29/1998EP0854849A1 Ethynyl substituted aromatic compounds, synthesis, polymers and uses thereof
07/29/1998EP0854848A1 Process for the production of difluoromethane
07/29/1998EP0854847A1 Process for preparing fluorinated aliphatic compounds
07/29/1998EP0854838A1 Hydrogen fluoride recovery process
07/29/1998EP0690834B1 Method for preparing 1,1-dichloro-1-fluoroethane
07/29/1998EP0670295B1 Process for producing 1,1,1,4,4,4-hexafluoro-2-butene and 1,1,1,4,4,4,-hexafluorobutane
07/29/1998CN1039314C Preparation method of biscfluoromethane
07/29/1998CN1039313C Process for removal of hydrogen fluoride
07/28/1998US5786474 N-fluorosulfonimides, process for their production, as well as their use as fluorinating agents
07/28/1998US5786432 Polymerizing or copolymerizing olefin in presence of transition metal metallocene catalyst and cocatalyst
07/28/1998US5786354 Tri-substituted phenyl derivatives and processes for their preparation
07/28/1998US5785822 Process for separating difluoromethane
07/28/1998US5785741 Includes at least one glassy polymer membrane separation unit having a feed side and a permeate side
07/23/1998WO1998031650A1 Isomerization of hydrofluorocarbon
07/23/1998WO1998031649A1 Process for the manufacture of halocarbons
07/22/1998EP0854335A2 Perfluorocompound separation and purification method and system
07/22/1998EP0854147A2 Tripodal cyclopentadiene derivatives and their use
07/22/1998EP0853970A2 An improved process and system for separation and recovery of perfluorocompound gases
07/22/1998EP0853607A1 Method of making 1,2,4-trichlorobenzene
07/22/1998EP0853606A1 1,1-difluoro-1,4-dichlorobutane and process for its preparation
07/22/1998EP0853605A1 Process for the manufacture of 1,1,1,2-tetrafluoroethane
07/22/1998CN1188466A Process to make allyl chloride and reactor useful in that process
07/22/1998CN1039223C Photochemical method of synthesizing halohydrocarbon and its photochemical reactor
07/21/1998CA2021733C Azole-substituted cycloalkanol derivative, a process to produce the same and a use of the derivative as an agricultural and horticultural fungicide
07/15/1998EP0606482B1 Method of removing hydrogen fluoride
07/15/1998EP0519050B1 Method and device for manufacturing chemicals
07/15/1998CN1039118C Improved gas-phase fluorating process for preparation of difluoromethane
07/14/1998US5780695 Process for the selective saturation of olefin-containing halogenated organic streams
07/14/1998US5780691 Process for producing 1,1,1,2,3,3,3,-heptafluoroprane
07/14/1998US5780672 Process for the selective preparation of monofluoro derivatives
07/14/1998US5779998 Method and apparatus for concentration and recovery of halocarbons from effluent gas streams
07/14/1998US5779936 Liquid crystalline compound and liquid crystal composition containing the same
07/14/1998US5779863 Fractional distillation
07/14/1998CA2132029C Preparation of solid perfluoroalkyl bromides
07/09/1998WO1998029373A1 φ-BROMOALKYLBENZENES AND PROCESS FOR PREPARING THE SAME
07/09/1998WO1998029372A1 Processes for the preparation of perfluoroalkanes and iodine pentafluoride
07/08/1998EP0851848A1 Method for preparing heptafluoropropane
07/08/1998CN1187149A Catalyst for and method of oxychlorination
07/08/1998CN1186799A Production of hydrofluorocarbons
07/08/1998CN1186798A Chemical process
07/07/1998US5777185 Production of organic fluorine compounds
07/07/1998US5777184 Preparation of fluoroalkyl compounds and their derivatives
07/07/1998US5777181 2, 4, 5-trihalogeno- and 2, 3, 4, 5-tetrahalogenobenzene derivatives
07/02/1998WO1998028273A1 Method for preparing a tetrahydropyridin derivative
07/02/1998WO1998028247A1 Process for producing 1,1,1,2,3,3,3-heptafluoropropane
07/01/1998EP0850492A1 Photo-voltaic cell
07/01/1998EP0850211A1 Process for the preparation of 4-bromo-1,1-difluorobut-1-ene and 2,4-dibromo-1,1,1-trifluorobutane
07/01/1998EP0850210A1 Process for the preparation of halogenated alkanes
06/1998
06/30/1998US5773673 Method of making chlorinated hydrocarbons
06/30/1998US5773672 Using an ozonide catalyst
06/30/1998US5773671 Process for purifying 1,1-dichloro-2,2,2-trifluoroethane and 1-chloro-1,2,2,2-tetrafluoroethane
06/30/1998US5772852 Distilling by heating to form an azeotrope and recovering hydrochloric acid
06/30/1998US5771713 Cryogenic rectification system for recovery of fluorine compounds
06/25/1998WO1998027179A1 1,1,5,7-tetrafluoro-1,2,3,4-tetrahydronaphthalene derivatives and their use in liquid crystal mixtures
06/25/1998WO1998027042A1 5,7-difluoro-1,2,3,4-tetrahydronaphthalene derivatives and their use thereof in liquid crystal mixtures
06/25/1998WO1998027038A1 1,3,5-trifluoronaphthalene derivatives for liquid crystalline mixtures
06/25/1998WO1998027037A1 1,3-difluoronapthalene derivatives for liquid crystal mixtures
06/25/1998WO1998027036A1 Difluorophenyl derivatives, liquid-crystal compounds, and liquid-crystal composition
06/25/1998WO1998027035A1 Fluorinated phenantrene derivatives for liquid crystal mixtures
06/25/1998WO1998027030A1 Process for the production of alpha methylstyrenes
06/25/1998DE19653008A1 Fluorierte Phenanthren-Derivate und ihre Verwendung in flüssigkristallinen Mischungen Fluorinated phenanthrene derivatives and their use in liquid crystal mixtures
06/24/1998EP0849246A2 Derivatives of 4-vinyl-4'-alpha-hydroxyethyl-biphenyl
06/24/1998EP0849244A1 Process for the preparation of distyryl-biphenylic compounds
06/24/1998EP0699178B1 Tetrahydronaphthyl and cyclopropyl substituted 1,3-butadienes having retinoid-like activity
06/24/1998EP0623102B1 Cyclobutane-benzole derivatives
06/23/1998US5770780 Reaction of cycloaliphatic olefin and hydrohalic acid, noncatalytic reaction, high yield and purity, chlorination, bromination, iodination
06/23/1998US5770779 Process for preparation of fluorinated hydrocarbons
06/23/1998US5770753 Addition polymerization catalyst
06/23/1998US5770041 Non-enolizable oxygenates as antifoulants
06/23/1998CA2084864C Chromium and nickel oxide-based mass catalysts and their application to halogenated hydrocarbon fluoration
06/18/1998WO1998025874A1 Polymerizable biaryls, method for the production and use thereof
06/18/1998DE19652252A1 1,3-Difluornaphthalin-Derivate und ihre Verwendung in flüssigkristallinen Mischungen 1,3-difluoronaphthalene-derivatives and their use in liquid crystal mixtures
06/18/1998DE19652250A1 1,1,5,7-Tetrafluor-1,2,3,4-tetrahydronaphthalin-Derivate und ihre Verwendung in flüssigkristallinen Mischungen 1,1,5,7-tetrafluoro-1,2,3,4-tetrahydronaphthalene derivatives and their use in liquid crystal mixtures
06/18/1998DE19652249A1 1,3,5-Trifluornaphthalin-Derivate und ihre Verwendung in flüssigkristallinen Mischungen 1,3,5-Trifluornaphthalin derivatives and their use in liquid crystal mixtures
06/18/1998DE19652247A1 5,7-Difluor-1,2,3,4-tetrahydronaphthalin-Derivate und ihre Verwendung in flüssigkristallinen Mischungen 5,7-difluoro-1,2,3,4-tetrahydronaphthalene derivatives and their use in liquid crystal mixtures
06/18/1998DE19651439A1 Polymerisierbare Biaryle, Verfahren zur Herstellung und deren Verwendung A polymerizable biaryl compounds, methods of preparation and their use
06/17/1998EP0847974A1 Process for the preparation of cyclopropylacetylene and its derivatives
06/17/1998EP0847801A1 Chromium and nickel oxide-based solid catalysts useful for the fluorination of halogenated hydrocarbons
06/17/1998CN1184799A Method for prepn. of a, a'-fluorohalogenated xylene
06/17/1998CN1038743C Method for preparing solid perfluoroalkyl bromides
06/16/1998US5767330 Process for preparing alkyl chlorides
06/16/1998US5767317 Process for preparing 2,2'-bis(diphenylphosphinylmethyl)-1,1'-binaphthyls and new compounds from this class of substances
06/16/1998US5766483 Contacting chemical mixture containing hydrogen fluoride with a synthetic water soluble acrylic acid polymer binder, regenrating hydrogen fluoride from the binder for reuse
06/11/1998WO1998024745A1 Method for isomerizing halogenated ethylbenzene and method for separating halogenated ethylbenzene isomers
06/11/1998WO1998024744A1 Polyhalogen hexenes production thereof and production of halogenated c4 carboxylic acids from these compounds
06/11/1998WO1998024743A1 Tfpx synthesis
06/10/1998EP0846670A1 Cyclohexane derivatives and liquid-crystal compositions
06/10/1998EP0846027A1 Cloth or cloth-like packing which is subject to low pressure losses and has an ordered structure for use in material-exchange columns and rectification method using such packing
06/10/1998DE19650199A1 Polyhalogenhexene, ihre Herstellung und die Herstellung von halogenierten C¶4¶-Carbonsäuren daraus Polyhalogenhexene, their preparation and the preparation of halogenated carboxylic acids therefrom C¶4¶
06/10/1998CN1184102A 1, 2 -bis -adducts of stable nitroxides with substituted ethylenes and stabilized compositions
06/09/1998US5763712 Process for the preparation and fractionation of a mixture of dimethyl ether and chloromethane with methanol as extractant
06/09/1998US5763711 Converting 1,1-dihaloalkenes to 1,3-dihaloalkenes in liquid phase using basic alumina, silica or zeolite as catalyst