Patents
Sitemap › C07 - Organic chemistry › C07C - Acyclic or carbocyclic compounds › C07C 17 - Preparation of halogenated hydrocarbons
Patents for C07C 17 - Preparation of halogenated hydrocarbons (19,929)
11/1999
11/23/1999US5990364 Heat treatment in the presence of hydrogen without an added catalyst
11/18/1999WO1999058488A1 Improved process for the preparation of trifluoromethyl containing derivatives
11/18/1999WO1999058481A1 Liquid-fluorination system and method
11/18/1999WO1999051556A3 Processes for the purification and use of 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane and azeotropes thereof with hf
11/18/1999CA2331517A1 Liquid-fluorination system and method
11/17/1999EP0957074A1 Process for producing halogenated hydrocarbons
11/17/1999EP0784604B1 Process for the preparation of (e)-2-fluoromethylene-4-(4-fluorophenyl) butan-1-ol
11/17/1999CN1235147A Separation of CF4 and C2F4 from perfluorocompound mixture
11/17/1999CN1046496C Method and apparatus for cleaning vinyl chloride
11/17/1999CN1046495C Oxychlorination and catalyst, their use for production of 1,2-dichloroethane
11/16/1999US5986152 Catalysts of copper, alkali metal with cerite rare earths, promethium, zirconium dioxide and metal oxides on alumina for oxychlorination of ethylene to form 1,2-dichloroethane
11/16/1999US5986151 Dehydrofluorination from 1,1,1,3,3-pentafluoropane in the presence of palladium on carbon catalyst to produce 1,1,1,3-tetrafluoropropene, reducing then dehydrofluorination to give 1,1,1-trifluoropropene
11/16/1999US5986023 Cationic polymers with quaterniary ammonium fluoroaluminate compounds
11/16/1999US5985119 Electrokinetic pumping
11/11/1999WO1999057088A1 Method for preparing decomposition products from the thermal decomposition of 1,2-dichloroethane
11/11/1999CA2329662A1 Method for preparing decomposition products from the thermal decomposition of 1,2-dichloroethane
11/10/1999EP0955283A1 Process for the continuous preparation of mono and/or bis(mono-, and/or di-, and/or trichloromethyl)benzenes
11/10/1999EP0955088A1 Catalyst for the fluorination of halogenated organic compounds
11/10/1999EP0954515A1 Solvents for use in fluorination reactions
11/10/1999CN1234788A Process for purification of 1,1-difluoroethane
11/10/1999CN1234381A Improved preparing method for chloroine and alkynylamine
11/10/1999CN1046259C Preparation process for propanol dichloride
11/09/1999US5981815 Method for preparing α, ω-bromochloroalkanes
11/09/1999US5981814 Vapor phase process for preparing fluorinated aliphatic compounds
11/09/1999US5981813 Fluorination process of halogenated organic compounds
11/09/1999US5981789 Chlorodenitrating aromatic compounds using less chlorinating agent and lower temperatures, then recycling the product mixture to increase the yield
11/09/1999US5981422 Perfluoroalkylphthalocyaninato metal complex or 20-tetrakis-pentafluorophenyl porphyrin metal complex used as catalyst
11/09/1999CA2114383C Photochemical gas-liquid process for halogenating alkylbenzenes
11/04/1999WO1999055652A1 Method for preparing bis(difluoromethyl) ether and trifluoromethane
11/03/1999EP0953557A1 Method for producing bis(trifluoromethyl)benzene
11/03/1999EP0863863B1 Novel fluorinated organic compounds, ophthalmological applications thereof and method for making same
11/03/1999EP0743934B1 Process for separating pentafluoroethane from a mixture comprising halogenated hydrocarbons and chloropentafluoroethane
11/03/1999CN1234015A Process for producing difluoromethane
11/02/1999US5977419 Process for the preparation of substituted phenylpropenes
11/02/1999US5977412 Process for preparing 3,5-difluoroaniline
10/1999
10/27/1999EP0952135A1 Naphthalene derivative and liquid crystal composition comprising the same
10/27/1999EP0825812A4 Tetradecatrienyl and tetradecadienyl acetates and their use as sex attractants for tomato pests
10/27/1999CN1045952C Method for producing di (fluoro-methyl) ether and difluoromethane
10/26/1999US5973216 Reacting an organic sulfonyl halide with cyclopropylmethanol in the presence of a tertiary amine in a non-protic solvent, to generate cyclopropylmethyl organic sulfonate, which is reacted with an alkali metal bromide or a quaternary ammonium
10/26/1999US5973215 Process for separating and recovering hydrogen fluoride from mixtures
10/26/1999US5973190 Process and intermediate compounds for the preparation of pesticidal fluoroolefin compounds
10/26/1999US5972827 Catalytic oxychlorination of hydrocarbons to produce chlorocarbons
10/26/1999US5972300 Method and means for recovering heat in the pyrolysis of 1,2-dichloroethane
10/26/1999CA2165888C Process for preparing aromatic olefins
10/21/1999WO1999052844A1 Process for the preparation of 1-chloro-1,1,3,3,3-pentafluoropropane
10/20/1999EP0950651A1 Fluoroalkylated liquid-crystal compounds, liquid-crystal compositions, and liquid-crystal display elements
10/20/1999EP0950430A1 Separation of CF4 and C2F6 from a perfluorocompound mixture
10/20/1999EP0950052A1 Method for preparing a tetrahydropyridin derivative
10/20/1999EP0842136B1 Method for preparing alpha,omega-bromochloroalkanes
10/20/1999CN1045727C Fluidized bed oxygen method hydrocarbons oxychlorination reaction catalyst and preparation method thereof
10/19/1999US5969204 Diazotizing substituted monoamino benzenes, then reacting products with substituted p-divinylbiphenyls
10/19/1999US5969199 Process for the addition of HF to halogenated alkenes
10/19/1999US5969198 Process for the preparation of 1,1,1,3,3-pentafluoropropane
10/19/1999US5969197 Process for the preparation of chloro-fluoro-butenes
10/19/1999US5968982 2,2-Dichloroalkanecarboxylic acids, processes for their production and pharmaceutical agents containing these
10/19/1999US5968410 Liquid crystal displays
10/14/1999WO1999051609A1 Method for producing grignard compounds
10/14/1999WO1999051556A2 Processes for the purification and use of 2,2-dichloro-1,1,1,3,3,3-hexafluoropropane and azeotropes thereof with hf
10/14/1999WO1999051555A1 Processes for the purification and use of 2-chloro-1,1,1,2,3,3,3-heptafluoropropane and azeotropes thereof with hf
10/14/1999WO1999051554A1 Method for processing a product gas arising from the breakdown of 1,2-dichloroethane
10/14/1999WO1999051553A1 Process for the production of fluorocarbons
10/14/1999DE19815446A1 Verfahren zur Aufarbeitung eines Spaltgases aus der Spaltung von 1,2-Dichlorethan A process for working up a cracked gas from the cracking of 1,2-dichloroethane
10/13/1999EP0949232A1 Difluorophenyl derivatives, liquid-crystal compounds, and liquid-crystal composition
10/13/1999EP0949231A1 Fluorine-substituted benzene derivatives, liquid-crystal composition, and liquid-crystal display element
10/13/1999EP0948988A1 Use of an adsorbent for separating halogenated aromatic compounds and method of separation using it
10/13/1999EP0842135B1 Method for preparing alpha, omega-bromochloroalkanes
10/13/1999EP0773206B1 Process for producing 1,1,1,2,3,3,3-heptafluoropropane
10/12/1999US5965781 Purifying the catalyst for improved performance by dissolving the phosphonium halide in a liquid cyclic ether, removing the solid impurities, adding a nonsolvent to precipitate; reacting an alkali fluoride and halo(s)benzene
10/12/1999US5964919 Method of storing active zero valent zinc metal
10/09/1999CA2266764A1 Continuous preparation method for mono and/or di(mono-, and/or di- and/or tri-chloromethyl) benzenes
10/07/1999WO1999050210A1 Vinylene and ethyl compounds
10/07/1999WO1999050209A1 Method for producing fluorinated saturated hydrocarbon
10/07/1999WO1999050208A1 Purification of hydrofluorocarbons
10/07/1999WO1999050207A1 Method for preparing 2-chloro-1-cyclohexyl-4-ethynylbenzene
10/07/1999WO1999050206A1 Selective bromination of aromatic compounds
10/07/1999DE19814550A1 Vinylen- und Ethylverbindungen Vinylene and ethyl compounds
10/06/1999EP0946476A1 5,7-difluoro-1,2,3,4-tetrahydronaphthalene derivatives and their use thereof in liquid crystal mixtures
10/06/1999EP0946474A1 1,3-difluoronapthalene derivatives for liquid crystal mixtures
10/06/1999EP0946473A1 Fluorinated phenantrene derivatives for liquid crystal mixtures
10/06/1999EP0946472A1 The catalytic manufacture of vinyl fluoride
10/06/1999EP0846027B1 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
10/06/1999CN1230949A Stabilised monomer composition
10/05/1999US5962754 Method for the preparation of 3-bromo-1,1,1-trifluoropropane
10/05/1999US5962753 Process for the manufacture of pentafluoroethane
10/05/1999US5962631 2, 7-aryl-9-substituted fluorenes and 9-substituted fluorene oligomers and polymers
09/1999
09/30/1999WO1999049506A1 Method and apparatus for manufacturing a micromechanical device
09/30/1999WO1999048996A1 Compositions and methods for inhibiting vinyl aromatic monomer polymerization
09/30/1999WO1999048849A1 Process for producing 1,1,1,3,3-pentafluoropropane
09/30/1999WO1999048848A1 Method to reduce the amount of phosphorus oxyhalides and dihalogenated pentenes in 1,1-dihalo-1-cyclopropylethanes
09/30/1999WO1999048606A1 Supported catalyst containing pseudo-boehmite and gamma-al2o3, production of same and its use for producing 1,2-dichloroethane
09/30/1999DE19812468A1 Verfahren zur Herstellung von 1,2-Dichlorethan A process for the preparation of 1,2-dichloroethane
09/29/1999EP0945417A1 Processes for the preparation of perfluoroalkanes and iodine pentafluoride
09/29/1999EP0945416A1 Process for the preparation of 2,4-dichloro-3,5-dimethylfluorobenzene
09/29/1999EP0944690A1 1,1,5,7-tetrafluoro-1,2,3,4-tetrahydronaphthalene derivatives and their use in liquid crystal mixtures
09/29/1999EP0944569A1 Polymerizable biaryls, method for the production and use thereof
09/29/1999EP0944565A1 1,3,5-trifluoronaphthalene derivatives for liquid crystalline mixtures
09/29/1999EP0944564A1 Halogen exchange reactions and uses thereof
09/29/1999CN1045288C Purification process of pentafluoroethane
09/29/1999CN1045287C Process and device for preparing 1,2-dichlorethane by direct chlorination
09/28/1999US5959166 Method for concurrently producing different hydrofluoro carbons
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