Patents
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Patents for C07C 17 - Preparation of halogenated hydrocarbons (19,929)
11/1991
11/06/1991EP0453502A4 Process for the chlorination of ethane
11/05/1991USH992 Preparation of fluorobenzenes by the decarboxylation of fluorophthalic acids or benzoic acids
10/1991
10/31/1991WO1991016286A1 PROCESS FOR PRODUCING α-FLUOROSTYROLS
10/31/1991DE4013305A1 Verfahren zur herstellung von (alpha)-fluorstyrol Process for the preparation of (alpha) -fluorstyrol
10/30/1991EP0454557A1 Methane oxyhydro-chlorination process
10/30/1991EP0453944A1 Catalytic system and 1,2-dichloroethane preparation process by chlorination of ethylen with addition of this catalytic system
10/30/1991EP0453891A1 Preparation of 3,3,3-trifluoropropene-1
10/30/1991EP0453818A1 Process for the reductive dehalogenation of halogenated hydrocarbons and halogenated ethers
10/30/1991EP0453588A1 Process for removing solvents and other contaminants from an inlet solvent laden air path
10/30/1991EP0453502A1 Process for the chlorination of ethane.
10/30/1991EP0452348A4 Process for the chlorination of methane
10/29/1991US5061669 Catalyst comprising anhydrous nickel compound, bidentate phosphorus-containing ligand, reducing metal
10/29/1991US5061400 Wide temperature range, high response speed, low driving voltage
10/28/1991CA2041034A1 Catalysts for oxyhydrochlorination of methane
10/23/1991EP0452909A2 Method of purifying non-converted 1,2-dichloroethane from a 1,2-dichloroethane pyrolysis process
10/23/1991EP0452363A1 Aluminum fluoride catalyst and use thereof in a chlorofluorination process for preparing 1,1-dichloro-1,2,2,2-tetrafluoroethane.
10/23/1991EP0452348A1 Process for the chlorination of methane.
10/23/1991CN1055534A Process for preparing 1,1,1-trifluorochloro-ethane and 1,1,1,2-tetrafluoroethane
10/23/1991CN1014405B Process for manufacturing methallyl chloride
10/23/1991CN1014404B Gas-phase fluorination process
10/22/1991US5059730 Removal of esters by alkaline washing and treatment with bisulfite
10/22/1991US5059729 Process for preparing 1,2-difluoroethane and 1,1,2-trifluoroethane
10/22/1991US5059510 Media for optical information storage comprising an organic macrocyclic chromophore substituted with a film conferring organic substituent
10/22/1991US5059391 Use of polyaralkylamines as corrosion inhibitors
10/22/1991CA1291172C Process for the catalytic trans-halogenation of a polyiodo-benzene, and, in particular, of a di-iodo-benzene
10/20/1991CA2014992A1 Degradationn of polychlorinated biphenyls
10/17/1991WO1991015445A1 Regeneration of zeolites used for purifying 1,1,1,2-tetrafluoroethane
10/17/1991DE4012007A1 Reductive de-hydrohalogenation of hydrocarbon(s) or ether(s)
10/17/1991CA2078224A1 Regeneration of zeolites used for purifying 1,1,1,2-tetrafluoroethane
10/16/1991EP0451793A2 Method for the production of mixtures of chlorotetrafluoroethane and octafluorocyclobutane
10/16/1991EP0451746A2 Method for the production of fluorine containing ethane derivatives
10/16/1991EP0451720A1 Process for the separation of m- and p-dichlorobenzene
10/16/1991EP0451199A1 Processes using aluminum fluoride catalyst compositions for preparing haloethanes containing fluoride.
10/16/1991EP0306521B1 Ethine derivatives as compounds of liquid crystal phases
10/16/1991CN1055354A Process for isomerization of hydrochloro-fluorocarbons
10/16/1991CN1055353A Improved synthesis of diethynylbenzene
10/15/1991US5057634 Multistep synthesis of hexafluoropropylene
10/15/1991US5057633 Reacting perfluorosulfonyl chloride with
10/15/1991US5057470 Regeneration of noble metal catalysts used in hydrodehalogenation of halogen-substituted hydrocarbons containing fluorine and at least one other halogen
10/15/1991US5057192 Acetone removal from acetic anhydride production process
10/13/1991WO1991016287A1 Process for preparation of 1,2,4-trifluorobenzene and 1-chloro-3,4-difluorobenzene
10/13/1991CA2078215A1 Process for the preparation of 1,2,4- trifluorobenzene and 1-chloro-3, 4- difluorobenzene
10/09/1991EP0450584A1 Bromination method
10/09/1991EP0450467A2 Process for isomerization of hydrochlorofluorocarbons
10/09/1991EP0450318A1 An improved synthesis of diethynylbenzene
10/09/1991EP0449977A1 Improved hydrogenolysis/dehydrohalogenation process.
10/09/1991EP0253837B1 Catalytic method for producing fluoroaromatic compounds using branched alkyl pyridinium salts
10/09/1991CN1055171A Extractive distillation
10/08/1991US5055624 Synthesis of 1,1-dichloro-1,2,2,2-tetrafluoroethane
10/08/1991US5055235 Bromination process
10/08/1991US5055220 Dicyclohexylethylene derivatives
10/08/1991CA1290351C Process for preparing 1,1,1-trifluoro-2,2- dichloroethane by hydrofluorination in the presence of catalysts
10/02/1991EP0449617A2 Process for the preparation of 1,1,1,2-tetrafluorethane
10/02/1991EP0449614A2 Process for the preparation of 1,1,1,2-tetra-fluoroethane
10/02/1991CN1054970A Halogen exchange fluorination
10/01/1991US5053567 Vapor phase, using copper catalyst
10/01/1991US5053566 Catalysis reaction with bromine or chlorine halogenating agent, in the presence of methylene chloride and metal cation containing Type-L zeolite
10/01/1991US5053565 Chlorinating toluene in presence of methylene chloride and/or chloroform with zeolite catalyst
10/01/1991US5053564 Selective hydrogenolysis of perhalogenated ethane derivatives
10/01/1991US5053547 Benzonorbornene derivatives, processes for their preparation and medicinal and cosmetic compositions containing them
10/01/1991US5053377 Catalytic compositions, process for obtaining them and process for hydrogenation of 1,1,2-trichloro-1,2,2-trifluoroethane by means of these compositions
10/01/1991CA2039430A1 Process for isomerization of hydrochlorofluorocarbons
10/01/1991CA1289974C Preparation of chlorobenzotrifluoride compounds
10/01/1991CA1289730C Phase transfer catalysis
09/1991
09/28/1991WO1991014667A1 Extractive distillation
09/28/1991CA2078438A1 Extractive distillation
09/27/1991CA2036452A1 Synthesis of diethynylbenzene (an improved)
09/26/1991DE4039960A1 1,2-di:chloroethane prodn. - by reaction of chlorine and ethylene in di:chloro-ethane circulating in specified reactor-condenser system
09/25/1991EP0422203A4 Liquid feed injection in a chloromethanes process
09/25/1991CN1054764A Improved catalyst and process for fluid-bed oxychlorination of ethylene to edc.
09/25/1991CN1014055B Process for removal of organochlorine compounds from the offgas from the oxidation of ethylene
09/24/1991US5051538 Fluorination of dichloroethylene in the presence of aluminum fluoride
09/24/1991US5051537 Gas-phase fluorination
09/24/1991US5051536 Using a free radical catalyst to form cis-, trans-isomers
09/24/1991US5051535 Process for the preparation of extensively fluorinated aliphatic hydrocarbons having 1 or 2 bromine or chlorine atoms in the molecule
09/24/1991US5051153 Separation of methylene chloride from methylal by extractive distillation
09/24/1991CA1289563C Antiarrhythmic imidazoliums, intermediates thereto and method of use
09/24/1991CA1289334C Process for destroying organic products with toxic effects and equipment for implementing this process
09/21/1991WO1991014666A1 Halogen exchange fluorination
09/21/1991CA2077911A1 Halogen exchange fluorination
09/19/1991WO1991013846A1 1,1,2,2,3,3-hexafluorocyclopentane and use thereof in compositions and processes for cleaning
09/18/1991EP0447259A1 Process for preparing chloro-difluorobenzene
09/18/1991EP0447152A1 Decabromodiphenyl alkane process
09/18/1991EP0446869A1 Process for preparing 1,1,1-trifluorochloroethane and 1,1,1,2-tetrafluoroethane
09/18/1991EP0446537A1 Process for preparing lower alkyl-halides
09/18/1991EP0446301A1 Preparation of biaryl compounds.
09/18/1991CN1054611A 1,1,2,2,3,3,-hexafluorocyclopentane and use thereof in compositions and processes for cleaning
09/18/1991CN1054582A Halogen exchange fluorination
09/17/1991WO1991013847A1 Process for preparing chloro-difluorobenzene
09/17/1991US5049241 Extractive distillation
09/17/1991US5048942 Optical element with reduced reflectance
09/17/1991CA2058294A1 Process for preparing chlorodifluorobzene
09/17/1991CA1289152C Process for preparing aromatic fluorides
09/13/1991CA2038039A1 Compound for use in the synthesis of semiconducting polymers with perpendicularly arranged cores and method of synthesizing said compound
09/12/1991EP0455644A4 Production of allyl chloride.
09/11/1991EP0445682A1 Production of hexabromocyclododecane
09/11/1991EP0445595A2 Bromination process
09/11/1991EP0445560A2 Process for preparing ethane derivatives
09/10/1991US5047209 Control system for the quantification of the quality of fluidization using a thermocouple
09/10/1991CA1288780C Process for producing halogenated benzene derivative using zeolite catalyst
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