Class 570/158 - Zinc containing catalyst

Subclass of Class 570 - Organic compounds -- part of the class 532-570 series
Definition: Process wherein the catalyst contains an atom of zinc.
No. of patents: 29
Last issue date: 12/20/2011

Number	Title	Issue Date
8080696	Method for producing olefin The present invention provides a method for producing an olefin represented by General Formula (II): RfCF═CH2 (II) (wherein Rf is defined as below), wherein the method includes the step of contacting a fluorohalide represented by General Formula (I): Rf...	12/20/2011
8053612	Process for dehydrochlorinating 1,1,1,2-tetrafluoro-2-chloropropane to 2,3,3,3-tetrafluoropropene in the presence of an alkali metal-doped magnesium oxyfluoride catalyst and methods for making the catalyst A process for making a fluorinated olefin. The process has the step of dehydrochlorinating a hydrochlorofluorocarbon having at least one hydrogen atom and at least one chlorine atom on adjacent carbon atoms in the presence of a catalytically effective amount of a ca...	11/08/2011
8044251	Process for the preparation of halo-olefins Described is a process for preparing a halo-olefin comprising contacting a halogenated hydrocarbon with a metal dehalogenating agent, in a solvent, in the presence of a phase transfer catalyst, under conditions sufficient to dehalogenate said halogenated hydrocarbon...	10/25/2011
7358405	Dehalogenation process A process for obtaining vinyl compounds by dehalogenation of halofluorinated compounds with aromatic substituents, having formula: T-Ar—(O)y—CFX′—CF2X″ (I) wherein: X′=F, C...	04/15/2008
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 CF3CH2CHFX, wherein X is a selected from the group consisting of chlorine, bromine and iodin...	03/18/2008
7271301	Synthesis of perfluoroolefins A gold-lined pyrolysis reactor is used to pyrolyze compounds to form fluoroolefins like tetrafluoroethylene and hexafluoropropylene in high yield, with minimum to no formation of perfluoroisobutylene, chlorotrifluoroethylene, coke, salts, or polymer. ...	09/18/2007
7164050	Preparation of halo-olefin A process for preparing a halo-olefin to minimize one or more side reactions which form at least one impurity, said process comprising contacting a halogenated hydrocarbon with a metal dehalogenating agent dissolved in a solvent under conditions sufficient to dehalo...	01/16/2007
6992038	Zinc chloride-loaded support and method for producing the same The present invention is to solve the problems caused by a conventional method for producing a zinc chloride-loaded support wherein zinc chloride is adsorbed on a solid support in an aqueous solution of zinc chloride. The problems include environmental destruction c...	01/31/2006
6610896	Process for production of perfluoroalkadienes A process for preparing a perfluoroalkadiene compound of formula (I) (wherein n is an integer from 4 to 20) by the deiodofluorination of a compound of formula (II) (wherein n is as defined above), characterised in that said deiodofluorination is conducted in th...	08/26/2003
6534456	Extrudable multiphase composition comprising a lamellar phase and an isotropic phase The invention relates to a plurality of liquid cleansing compositions having at least one lamellar phase which possesses a lotion-like appearance conveying signals of enhanced moisturization and at least one abutting isotropic phase having enhanced cleans...	03/18/2003
6369284	Catalytic manufacture of pentafluoropropenes A process is disclosed for the manufacture of a pentafluoropropene of the formula: CFX.dbd.CYCF3 where X is selected from H and F and where Y is F when X is H and Y is H when X is F. The process involves contacting a hexafluoropropane of the fo...	04/09/2002
6262321	Catalytic manufacture of vinyl fluoride This invention relates to a process for the production of vinyl fluoride by dehydrofluorination of 1,1-difluoroethane in the presence of a catalyst containing magnesium and/or zinc....	07/17/2001
6166156	Method for making photocurable halofluorinated acrylates Halofluorinated alkylene monomers are made by a method comprising the steps of: (a) subjecting a first polymer which is the reaction product of a fluorinated vinyl monomer and a vinyl comonomer to dehydrohalogenation to form a second polymer; (b) treating...	12/26/2000
6093859	Process for the manufacture of 1,1,1,3,3-pentafluoropropane A process is disclosed for producing the hydrofluorocarbon CF3 CH.dbd.CF2. The process involves dehydrofluorinating CF3 CH2 CF3 at an elevated temperature in the vapor phase over a catalyst of (1) alu...	07/25/2000
6018083	Process for the production of fluorocarbons A process is disclosed for the separation of a mixture of HF and CF3 CClFCF3. The process involves placing the mixture in a separation zone at a temperature of from about -30° C. to about 100° C. and at a pressure sufficient to mai...	01/25/2000
5914423	Difluorobutenes and difluorobutanes A process for the preparation of a compound of formula (I): HetSCH2 CH2 CH.dbd.CF2 (I) wherein Het is an optionally substituted 5- or 6-membered heterocyclic ring, which comprises reacting a compound of formula ...	06/22/1999
5880315	Catalytic manufacture of vinyl fluoride A process for the manufacture of vinyl fluoride (i.e., CH2 .dbd.CHF, VF or 1141) from 1,1-difluoroethane (i.e., CH3 CHF2, F152a or HFC-152a) is disclosed which involves contacting the 1,1-difluoroethane at an elevated temp...	03/09/1999
5856593	Process for the production of fluorine containing olefins Production of trifluoroethylene from 1,1,1,2-tetrafluoroethane and/or 1,1,2,2-tetrafluoroethane in a heated reaction zone in the presence of a Lewis acid catalyst....	01/05/1999
5728903	Method for producing flourine-containing silicone compound A method for producing a fluorine-containing silicone compound, which comprises subjecting a compound of the following formula (I) and a hydrosilicone compound having at least one hydrogen atom bonded to a silicon atom to hydrosilylation to obtain a fluor...	03/17/1998
5679875	Method for manufacturing 1,1,1,2,3-pentafluoropropene 1,1,1,2,3-pentafluoropropane The present inventions provide manufacturing methods of 1,1,1,2,3-pentafluoropropene characterized by the reaction of removing HF by means of the contact of 1,1,1,2,3,3-hexafluoropropane in the gas state with active carbon or active carbon added with meta...	10/21/1997
5621147	Trifluoro-2-(trans-4-substituted cyclohexyl) ethylenes and process for their production A 1,1,2-trifluoro-2-(trans-4-substituted cyclohexyl)ethylene of the formula (1): R--(A)m --Cy--CF=CF2 (1) wherein R is a C1-10 alkyl group, a halogen atom or a cyano group, provided that in the case ...	04/15/1997
5481050	Processes for the preparation of fluorinated olefins and hydrofluorocarbons using fluorinated olefin The invention relates to a cost effective and convenient process for the manufacture of fluorinated olefins of the formula RCF2 CH=CH2 where R is Cx Cly Fz and y+z=2×+1. The invention is also directe...	01/02/1996
5446217	Processes for the preparation of fluorinated olefins and hydrofluorocarbons using fluorinated olefin The invention relates to a cost effective and convenient process for the manufacture of fluorinated olefins of the formula RCF2 CH=CH2 where R is Cx Cly Fz and y+z=2x+1. The invention is also directed...	08/29/1995
5166453	Method for purification of ethylene compounds having fluorine-containing organic group A purification method of a fluorine-containing alkylethylene comprises reacting the fluorine-containing alkylethylene with powdered metallic zinc in the presence of an aqueous acetic acid solution. By this method, fluorine-containing alkyl iodide and fluo...	11/24/1992
5124494	Continuous process for preparing chlorotrifluoroethylene The subject is the preparation of chlorotrifluoroethylene (CTFE) by a known reaction of 1,1,2-trichloro-1,2,2,-trifluoroethane (R-113) with zinc powder dispersed in an alcohol such as methanol, and the object of the invention is industrially easily and sm...	06/23/1992
5082981	Process for the synthesis of perfluoroalkandienes Perfluorobutadiene and higher alkandienes, with terminal double bonds, are obtained from ଱,ω-dibromo, ଱, ω,bromo, iodo perfluoroalkanes by dehalofluorination carried out with the aid of an organometallic compounds, in the presence of aprotic...	01/21/1992
5043490	Novel fluorinated dienes Novel 1,1,2-trifluorodienes, which have a minimum of seven carbon atoms and may contain in their molecule a phenylene or a methylphenylene moiety, are useful monomers, that can be polymerized in the presence of either free radical or coordination catalyst...	08/27/1991
4818513	Separation of hydrogen fluoride from 1,1-difluoroethene A gaseous feed stream comprising hydrogen fluoride and 1,1-difluoroethane is contacted with liquid organic barrier material in a condensing zone to partially condense the feed stream. The gaseous phase remaining after the partial condensation comprises mo...	04/04/1989
4654448	Process for the synthesis of hexafluorobutadiene and of higher perfluorinated dienes Perfluorobutadiene and higher perfluoroalkadienes, with terminal double bonds, are obtained from ଱,ω-diiodoperfluoroalkanes by deiodofluorination realized by using an organometallic compound, in the presence either of an aprotic solvent belonging t...	03/31/1987

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Class 570/158 - Zinc containing catalyst