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7348461 Processes for halogenating compounds  
Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process...
7345209 Processes for synthesis of 1,3,3,3-tetrafluoropropene  
Disclosed is a process for the synthesis of 1,3,3,3-tetrafluoropropene that comprises, in one preferred embodiment, providing a compound of the formula CF 3 CH 2 CHFX, wherein X is a selected from...
7329786 Processes for producing CF3CFHCF3  
Methods and materials are provided for the production of essentially isomerically pure perhalogenated and partially halogenated compounds. One embodiment of the present invention provides a process...
7319175 Catalyst synthesis of halogenated compounds with catalyst regeneration with elemental halogen  
Catalysts such as antimony halides, which are useful in fluorination reactions involving hydrogen fluoride, may be reduced during the reaction and require regeneration. Regenerative oxidation is...
7317071 Process for producing fluoromonomer  
Processes for producing a fluoromonomer from a fluoropolymer, among which one that can be carried out more simply is a process wherein thermal decomposition of a fluoropolymer is preformed by means...
7312367 Method of making 1,1,3,3,3-pentafluoropropene  
The invention provides an economic process for the manufacture of the hydrofluorocarbon 1,1,3,3,3-pentafluoropropene (HFC-1225zc). HFC-1225zc can be made from the dehydrochlorination of...
7241928 Process for the manufacture of halocarbons and selected compounds and azeotropes with HF  
A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR 1 R 2 CBR 3 R 4 (where A, B, R 1 , R 2 , R 3 , and R 4 are as defined in the specification) which...
7230146 Process for producing fluoropropenes  
Dehydrohalogenation processes for the preparation of fluoropropenes from corresponding halopropanes, in which the fluoropropenes have the formula CF 3 CY═CX N H P , wherein X and Y are...
7214839 Method of making hydrofluorocarbons  
A manufacturing process for making hydrofluorocarbons (HFCs), by reacting a hydrochlorocarbon and HF in a liquid phase catalytic reactor using a large mole ratio of HF to hydrochlorocarbon to...
7183448 Azeotropic composition, comprising 1, 1, 1, 3,3-pentafluoropropane and 1, 1, 1-trifluoro-3-chloro-2-propene, method of separation and purification of the same, and process for producing 1, 1, 1,3,3-pentafloropropane and 1, 1, 1-trifluoro-3-chloro-2-propene  
A mixture comprising at least 1,1,1,3,3-pentafluoropropane and 1,1,1-trifluoro-3-chloro-2-propene is subjected to a distillation operation, and thereby, a distillate comprising an azeotropic...
7112708 Method of making difluoromethane, 1,1,1-trifluoroethane and 1,1-difluoroethane  
A process for the production of difluoromethane (HFC-32), 1,1,1-trifluoroethane (HFC-143a) and 1,1-difluoroethane (HFC-152a). In the process the following steps are employed: (a) providing a...
7094934 Production process of hydrofluorocarbons  
In a process for producing a hydrogen-containing fluorinated hydrocarbon in which a halogenated hydrocarbon reaction raw material, which includes a chlorinated alkene and/or a hydrogen-containing...
7091388 Method of making 1,1,3,3,3-pentafluoropropene  
The invention provides an economic process for the manufacture of the hydrofluorocarbon 1,1,3,3,3-pentafluoropropene (HFC-1225zc). HFC-1225zc can be made from the dehydrochlorination of...
7074434 Process for the separation of a mixture comprising at least one hydrofluoroalkane and hydrogen fluoride, processes for the preparation of a hydrofluoroalkane and azeotropic compositions  
Process for the separation of a mixture comprising at least one hydrofluoroalkane and hydrogen fluoride, according to which a hydrofluoroalkane/hydrogen fluoride mixture is reacted with at least...
7071368 Method of making 1,1,1-trifluoroethane  
A process for producing 1,1,1-trifluoroethane (HFC-143a) which process comprises reacting hydrogen fluoride with vinylidene chloride along with one or more of 1,1,-dichloro-1-fluoroethane...
7064240 Process for producing perfluorocarbons and use thereof  
The process for producing perfluorocarbons according to the present invention is characterized in that in the production of a perfluorocarbon by contacting an organic compound with a fluorine gas,...
6930215 Process for the preparation of 1.1.1.3.3-pentafluoropropane  
1,1,1,3,3-pentafluoropropane is produced by reaction between 1,1,1,3,3-pentachloropropane and hydrogen fluoride in the presence of a hydrofluorination catalyst. The 1,1,1,3,3-pentachloropropane may...
6900362 Vapor phase production of 1,1,1,2,3,3,3-heptafluoropropane from hydrogen fluoride and hexafluoropropylene  
A process for the production of HFC-227ea from HF and HFP is provided. This process takes advantage of an azeotropic composition of HF and HFC-227ea in order to produce HFC-227ea essentially free...
6891074 Production of hydrofluoroalkanes  
A process for the production of a hydrofluoroalkane, which process comprises contacting a hydrochlorofluoroethane of formula CClXYCFHZ, wherein X and Y are each independently chlorine or fluorine...
6881698 Ion liquids derived from Lewis acid based on titanium, niobium, tantalum, tin or antimony, and uses thereof  
The ionic liquids according to the invention result from the reaction of a halogenated or oxyhalogenated Lewis acid based on titanium, niobium, tantalum, tin or antimony with an organic salt of...
6858762 Process for the manufacture of halocarbons and selected compounds and azeotropes with HF  
A liquid phase process is disclosed for producing halogenated alkane adducts of the formula CAR 1 R 2 CBR 3 R 4 (where A, B, R 1 , R 2 , R 3 , and R 4 are as defined in the specification) which...
6849772 Process for producing and purifying 1,1-difluoroethane, and product thus obtained  
1,1-Difluoroethane containing less than 10 mg/kg of vinyl chloride is obtained by treatment, with hydrogen fluoride, of a crude 1,1-difluoroethane containing less than 1 mol of hydrogen chloride...
6846963 Process for producing 1,1,1,3,3-pentafluoropropane  
In a process for producing 1,1,1,3,3-pentafluoropropane which has a liquid-phase reaction step for fluorination of 1,1,1,3,3-pentahalopropane (wherein at least one of halogen atoms is not fluorine)...
6841706 Hydrofluorination catalyst and method  
Hydrofluorination catalyst based on a chromium oxide which is poor in ammonium salts.
6841705 Method of producing difluoromethane  
A method of producing difluoromethane (HFC-32), which includes firstly reacting methylene chloride with hydrogen fluoride in gas phase at 280 to 340° C. in the presence of a fluorination catalyst...
6755942 Process for the manufacture of halocarbons and selected compounds and azeotropes with HF  
The invention relates to azeotropic compositions of halogenated propanes with HF.
6730817 Method for preparing 1,1,1,3,3-pentafluoropropane  
1,1,1,3,3-Pentafluoropropane is produced by reaction between 1,1,1,3,3-pentachloropropane and hydrogen fluoride in the presence of a hydrofluorination catalyst. The 1,1,1,3,3-pentachloropropane may...
6723887 Process for the production of difluoromethane  
A process for vapor phase fluorination of methylene chloride with anhydrous hydrogen fluoride (AHF) in the presence of a coprecipitated chromia-alumina impregnated with zinc salt as catalyst,...
6720464 Production and use of octafluoropropane  
Octafluoropropane is produced by a process comprising a step (1) of reacting hexafluoropropene with hydrogen fluoride in a gas phase at a temperature of from 150 to 450° C. in the presence of a...
6689924 Liquid phase catalytic fluorination of hydrochlorocarbon and hydrochlorofluorocarbon  
A process for the catalytic fluorination of hydrochlorocarbons and hydrochlorofluorocarbons in the liquid phase. The process is useful for fluorinating hydrochloropropanes,...
6686509 Process for producing α, α-difluorocycloalkane compound  
A method for producing an α,α-difluorocycloalkane at high purity with good efficiency, which comprises a step of treating a fluorocycloalkene with hydrogen fluoride wherein the fluorocycloalkene...
6639115 Process for the manufacture of difluoromethane  
The invention relates to the synthesis of difluoromethane by gas-phase catalytic fluorination of methylene chloride. To lengthen the lifetime of the catalyst the operation is carried out in the...
6635790 Process for the manufacture of defluoromethane  
The subject of the invention is a continuous process for the manufacture of difluoromethane (F32) from methylene chloride (F30) and hydrogen fluoride in the presence of chlorine, in the gas phase,...
6630610 Method of producing fluorinated organic compounds  
A process for producing a fluorinated organic compound comprising: (a) reacting an organic starting material with a fluorination agent in the presence of a liquid fluorination catalyst under...
6596910 Process for the manufacture of fluorocarbons  
Disclosed is an improved HFC manufacturing processes of the type which produces an intermediate product stream that includes a mixture of HF and at least one compound, usually an HCFC, which is...
6548712 Process for producing 1,1,1,5,5,5-hexafluoroacetylacetone  
The invention relates to a process for producing 1,1,1,5,5,5-hexafluoroacetylacetone. This process includes (a) hydrolyzing a metal complex of 1,1,1,5,5,5-hexafluoroacetylacetone into a...
6538165 Process for producing difluoromethane and difluorochloromethane  
According to a process for producing difluoromethane and difluorochloromethane, which comprises fluorinating dichloromethane and trichloromethane with hydrogen fluoride in a liquid phase in the...
6528691 Preparation of 245fa  
A gas phase process for the preparation of 245fa is provided, wherein 1233zd is contacted with HF in the presence of a supported antimony catalyst.
6521802 Process for preparing fluorine-containing halogenated hydrocarbon compound  
The present invention provides a process for preparing a fluorine-containing halogenated hydrocarbon compound by fluorinating, in a reaction field where an antimony halide compound represented by...
6479718 Liquid phase process for HCFC-123  
An improved liquid phase process is provided for the fluorination of perchloroethylene to 1,1-dichloro-2,2,2-trifluoroethane in the presence of an antimony catalyst.
6472573 Process for producing 1,1,1,3,3-pentafluoropropane  
A method of preparation for 1,1,1,3,3-pentafluoropropane (HFC-245fa) wherein the first process gives mainly 1,3,3,3-tetrafluoropropene (1234ze) by reacting 1-chloro-3, 3,3,-trifluoropropene...
6437201 Production of hydrofluoroalkanes  
An improved process for the manufacture of CF 3 CHF 2 by contacting 1,2-dichloro-1,1,2-trifluoroethane (CClF 2 CHClF) or 1-chloro-1,1,2,2-tetrafluoroethane (CHF 2 CClF 2 ) or mixtures of CF 3 CHCl...
6407296 Process for producing difluoromethane  
A process is disclosed for producing difluoromethane by fluorinating dichloromethane with hydrogen fluoride in a liquid phase in the presence of a catalyst, wherein the reaction is conducted at a...
6403847 Process for producing 1,1,1,3,3-pentafluoro-propane and/or 1-chloro-3,3,3-trifluoropropene  
One or more materials selected from 1,1,1,3,3-pentachloropropane, 1,1,3,3-tetrachloropropene and 1,3,3,3-tetrachloropropene are used as the specific materials described above. Before submitting the...
6392106 Process for producing 1,1,1,2,2-pentafluoroethane  
A process for producing 1,1,1,2,2-pentafluoroethane by fluorinating with hydrogen fluoride at least one of 2,2-dichloro-1,1,1-trifluoroethane and 2-chloro-1,1,1,2-tetrafluoroethane as a starting...
6369285 Process for preparing halohydrocarbons  
Halohydrocarbons containing at least 3 carbon atoms are obtained by reaction between a haloalkane and an olefin in the presence of a catalyst in a reaction medium which is essentially free of water.
6362383 Hydro-fluorination of chlorinated hydrocarbons  
Improved process for the catalytic hydro-fluorination of saturated or unsaturated organic compounds corresponding to the general formula C w H x Cl y F z (I) in which w is an integer between 1 and...
6350926 Chlorofluorohydrocarbon and process thereto  
The present invention provides the novel chlorofluorohydrocarbon 1,1-difluoro-1,4-dichlorobutane, and a process for its preparation comprising reacting 1,1,1,4-tetrachlorobutane or...
6339178 Synthesis of 1,1,1-trifluoroethane by fluorination of 1-chloro-1, 1-difluoroethane  
The subject of the invention is the manufacture of 1,1,1-trifluoroethane by fluorination or 1-chloro-1,1-difluoroethane with anhydrous hydrofluoric acid. The reaction is carried out in the liquid...
6329560 Method for producing hydrogen-containing fluorinated hydrocarbon  
A method for producing a hydrogen-containing fluorinated hydrocarbon includes supplying HF to a gap between an inner reactor made of a material resistant to the reaction and an outer container made...
Matches 1 - 50 out of 179 1 2 3 4 >