Patents
Patents for C07C 17 - Preparation of halogenated hydrocarbons (19,929)
03/1994
03/03/1994DE4328606A1 Verfahren zur Herstellung fluorierter ethanischer Verbindungen Process for the preparation of fluorinated compounds ethanischer
03/02/1994EP0584282A1 Process for the manufacture of pentafluoroethane
03/02/1994EP0584074A1 A process for the production of ethylene or a mixture of ethylene and vinyl chloride.
03/02/1994EP0584070A1 Process for separating pentafluoroethane from a mixture of halogenated hydrocarbons containing chloropentafluoroethane.
03/02/1994CN1083040A Preparation of 1,1,1,2,3-pentafluorpropine and 1,1,1,2,3-pentafluorpropane
03/02/1994CN1083039A Process for the preparation of vinyl chloride by ultrapyrolysis of 1,2-dichloroethane
03/02/1994CN1083038A Vapor phase flaorination process
03/02/1994CN1083037A Process for purifying 1,1,1,2-tetrafluoroethane
02/1994
02/28/1994CA2104902A1 Process for the preparation of hexafluoropropene dimers having a high proportion of perfluoro-(4-methyl-2-pentene)
02/26/1994CA2104654A1 Process for the preparation of fluorinated ethanic compounds
02/24/1994DE4227772A1 2-Fluoro-perfluoroalkyl-cyclohexane derivs. - useful as components of liq. crystal media for electro optical display elements
02/23/1994EP0583705A1 Process for the preparation of 2,3,4-trichloro-5-fluoro-benzoylchloride
02/23/1994EP0583703A1 Process for preparing 1,1,1-trifluoro-2-chloroethane
02/23/1994EP0583551A1 Process for purifying 1,1,1,2-tetrafluoroethane
02/23/1994CN1082529A Preparation of chlorinated methane
02/22/1994US5288932 Halogenation a hydroxymethyl cyclopropane with methane sulfonyl halide in the presence of trialkylamine in one pot, without isolation the mesyl halide
02/22/1994US5288930 Purification of 1,1,1,2-tetrafluoroethane
02/22/1994CA2101014A1 Composition containing 1,1,1,3,3-pentafluorobutane and methylene chloride, for the cleaning and/or drying of solid surfaces
02/17/1994WO1994003419A1 Improved process for separating and recovering halocarbons from mixtures thereof
02/17/1994WO1994003418A1 Process for the preparation of 1,1,1-trichloro-2,2,2-trifluoroethane
02/17/1994WO1994003417A1 Process for isomerizing 1,1,2-trichlorotrifluoroethane
02/17/1994WO1994003414A1 Fluorinating reagent and fluorinating method
02/16/1994EP0582786A1 Process for producing 1,1,1,2-tetrafluoroethane
02/16/1994CN1082019A Process for producing 1,1,1,2-tetrafluoroethane
02/15/1994CA2104030A1 Process for preparing 1,1,1-trifluoro-2-chloroethane
02/15/1994CA1327049C Process for obtaining substituted fluorobenzenes
02/09/1994EP0582494A1 Process for the purification of 1,1,1,2-tetrafluoroethane
02/09/1994EP0582165A1 Improved catalyst and process for oxychlorination of ethylene to EDC
02/09/1994EP0582156A1 Process for producing 1,1,1,2-tetrafluoroethane
02/09/1994EP0581961A1 Process for producing halogenated butene and butane
02/09/1994CN1023699C Difluoromethyl compounds preparing method
02/03/1994WO1994002440A1 Separation of tetrafluoroethane isomers
02/03/1994WO1994002439A1 Purification of pentafluoroethane
02/03/1994CA2140670A1 Purification of pentafluoroethane
02/03/1994CA2140292A1 Separation of tetrafluoroethane isomers
02/02/1994EP0580718A1 Hydrogenolysis of halocarbon mixtures
02/02/1994EP0494975B1 Azeotrope-like compositions of 1,3-dichloro-1,1,2,2,3-pentafluoropropane and 2-methyl-2-propanol
02/02/1994EP0460110B1 Process for the continuous recovery of hydrogen fluoride gas
02/02/1994EP0422203B1 Liquid feed injection in a chloromethanes process
02/01/1994US5283383 Antitumor compound, compositions and method of use
02/01/1994US5283382 Fluorination process
02/01/1994US5283381 Using halogenation catalyst of (tantalum or niobium) fluorosulfonate
02/01/1994US5283380 Process for preparing an active telogen
02/01/1994US5283379 Method for producing trifluoroethylene
02/01/1994US5283378 Process for the dechlorination and/or debromination of fluorine-and chlorine- and/or bromine-containing aromatic compounds
02/01/1994US5282968 Process for separating and recovering halocarbons from mixtures thereof
02/01/1994CA1326687C Process for the production of vinyl chloride by pyrolysis of 1,2-dichloroethane
02/01/1994CA1326686C Perfluoroalkenes and fluorination products thereof
01/1994
01/26/1994EP0580231A1 Process for the preparation of 4-tert-butylbenzaldehyde
01/26/1994EP0580181A1 Process for producing a hydrogen-containing 2,2-difluoropropane
01/26/1994EP0357671B1 Improved process for preparing aromatic fluorides
01/25/1994US5281568 Process for the production of a chromium-containing fluorination catalyst
01/25/1994CA1326480C Preparation of 3,3,3-trifluoropropene-1
01/20/1994WO1994001386A1 Purification of 1,1,1,2-tetrafluoroethane
01/19/1994EP0579021A1 Process for preparing haloaromatics
01/18/1994US5279719 Chlorine gas in titanium tetrachloride solvent
01/13/1994DE4222371A1 New liq. crystal cpds. with terminal chloro or mono-, di- or tri-fluoro gp. - having low viscosity, relatively high dielectric ansiotropy and nematogenity, good performance at low tenmps. and good suppression of smectic phases
01/12/1994CN2152599Y Chlorination reaction tower employing light
01/12/1994CN1080630A Preparing process for hydrofluoric halocarbon and hydrofluoric hydrocarbon
01/12/1994CN1080629A Improved preparing process for 1,1-dichloride-1-fluoroethane
01/11/1994CA1325996C Process for the separation of hf via azeotropic distillation
01/11/1994CA1325995C Process for the separation of hf via azeotropic distillation
01/06/1994WO1994000423A1 Cross-coupling process of boric acids with halogenated compounds
01/05/1994EP0577059A1 Oxychlorination catalyst, process for preparing the catalyst and method of oxychlorination with use of the catalyst
01/05/1994EP0576970A1 Metallocenes with arylsubstituted indenyl-derivatives as ligands, process for their preparation and their use as catalysts
01/05/1994EP0576613A1 Process for the manufacture of 2-chloro-1,1,1-trifluoroethane.
01/05/1994EP0576591A1 Process for the manufacture of 1,1,1,2-tetrafluoroethane.
01/05/1994DE4218726A1 Natural gas purificn. before chlorination to chloromethane cpds. - by simultaneous desulphurisation, methanisation and cracking over two catalysts in single-zone reactor
01/05/1994CN1080279A Preparation of 2,4-dichloro-toluene
01/05/1994CN1080278A Preparation of monochloro-o-dimethyl benzene
01/05/1994CN1080277A Method of preparing trifluoroethylene by catalytic hydrogenolysis of trifluorochloroethylene
01/05/1994CN1023397C Improved hydrogenolysis/dehydrohalogenation process
01/04/1994US5276226 Low temperature halogenation of alkanes
01/04/1994US5276225 Process for separating hydrogen fluoride from its mixtures with 1,1,1-trifluoro-2-chloroethane
01/04/1994US5276224 Process for preparing 1,1,1-trifluoro-2,2-dichloroethane by hydrofluorination in the presence of catalysts
01/04/1994US5276223 Process for producing 1,1,1,2-tetrafluoroethane
01/04/1994US5276222 Heating in presence of catalytic amount of Group IA or IIA oxide or hydroxide
01/04/1994US5276221 Process for production of polyfluoroolefins
01/04/1994US5276194 Reacting perfluoroalkyl iodide with aromatic compound in presence of aqueous inorganic base
12/1993
12/29/1993EP0575915A1 Method for producing methyl chloride
12/28/1993US5274190 Fluorinated aluminum catalyst
12/28/1993US5274189 Process for the manufacture of linear hydrofluorocarbons containing end group hydrogen substituents
12/28/1993US5273627 Process for stripping and distilling mixtures containing alkylaromatics chlorinated in the side chain
12/28/1993US5273572 Process for removing an organic compound from water
12/23/1993WO1993025510A1 Processes for producing 1,1,1,2,3-pentafluoropropene and producing 1,1,1,2,3-pentafluoropropane
12/23/1993WO1993025509A1 Production of hydrofluorocarbons
12/23/1993WO1993025508A1 Production of hydrofluorocarbons
12/23/1993WO1993025507A1 Vapor phase fluorination process
12/23/1993WO1993025506A1 Production of tetrafluoroethanes
12/23/1993WO1993025505A1 Production of hydrofluoroalkanes
12/23/1993DE4220082A1 Linear poly:cyclic cpds. prodn. from boronic acid and halogen cpds. - by cross-coupling in aq. solvent in presence of catalyst and water-soluble borate, esp. prodn. of liquid crystal cpds. with fluoro-phenoxy gp.
12/23/1993CA2137353A1 Production of hydrofluorocarbons
12/23/1993CA2115430A1 Production of tetrafluoroethanes
12/22/1993EP0575096A1 Process for preparing an active telogen
12/22/1993EP0574756A1 Process for the removal of olefinic impurities from fluorinated C3-C6-hydrocarbons
12/22/1993CN1079729A Chemical Process
12/21/1993US5272128 Phosphosulfonate herbicides
12/16/1993DE4218976A1 New alkoxy, alkenoxy ethoxy and poly:ethoxy benzene cpds. for cells - useful in liq. crystal medium, esp. in dielectric for electro=optical display with wide mesophase range and favourable optical anisotropy and low temp. properties e.g. solubility
12/16/1993DE4218841A1 Meta- and para-di:chloro-benzene sepn. by adsorption on pentasil zeolite - from soln. in organic solvent, giving very selective adsorption of para-isomer
12/15/1993EP0574077A1 Process for the preparation of 1,1,1,2-tetrafluoroethane