Class 570/228 - Catalyst in liquid phase

Subclass of Class 570 - Organic compounds -- part of the class 532-570 series
Definition: Process wherein the catalyst is employed in a liquid phase.
No. of patents: 34
Last issue date: 06/21/2005

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Number	Title	Issue Date
6909024	Process for the conversion of ethylene to vinyl chloride and novel catalyst compositions useful for such process This invention is a process for producing vinyl chloride from an ethylene-containing feed, oxygen, and a chlorine source in the presence of a catalyst. The process permits direct production of vinyl chloride in a single reactor system, and further permits ethane to ...	06/21/2005
6797845	Process for vinyl chloride manufacture from ethane and ethylene with immediate HCl recovery from reactor effluent A process for producing vinyl chloride monomer where significant quantities of both ethane and ethylene in input streams to the affiliated reactor where hydrogen chloride in the reactor effluent is essentially fully recovered from the reactor effluent in the first u...	09/28/2004
6388151	Synthesis of Tetraalkylcyclopentadienes A method for synthesizing tetramethylcyclopentadiene from 2,3-dibromobutane is described. A 2-bromo-2-butene Grignard is reacted with an ethyl formate to produce a 3,5-dimethyl-2,5-heptadiene-4-ol magnesium bromide which is then quenched with acetic acid ...	05/14/2002
6380446	Process for dehydrohalogenation of halogenated compounds Halogenated compounds are dehydrohalogenated in a multi-stage bubble reactor wherein agitation of the reactor contents is provided by in situ generation and vaporization of reaction product having a boiling point lower than that of the reactants....	04/30/2002
5811605	Preparation of 1,2,3,3-tetrachloropropene The dehydrochlorination of 1,1,2,3,3-pentachloropropane to produce 1,2,3,3-tetrachloropropene is conducted using aqueous alkali metal hydroxide in the substantial absence of added ethanol. The 1,2,3,3-tetrachloropropene is recovered from the reaction mixture i...	09/22/1998
5763705	Method of producing 1,1,1,3,3-pentafluoropropane, a method of producing 1,1,1,3,3-pentafluoro-2-halogeno-3-chloropropane, and a method of producing 1,1,1,2,3,3-hexachloropropene There are provided production methods of 1,1,1,3,3-pentafluoropropane characterized in that 1,1,1,3,3-pentafluoro-2,3-dichloropropane is reacted with hydrogen fluoride in the presence of a noble metal catalyst; of 1,1,1,3,3-pentafluoro-2-halogeno-3-chloro...	06/09/1998
5648571	Methods for the synthesis of chemical compounds Methods for synthesis of chemical compounds by catalytic transfer hydrogenation comprise forming a mixture of a starting material, a hydrogen donor material and a catalyst. The catalyst is selected from a catalytic form of carbon, a polyethylene glycol ph...	07/15/1997
5608130	Methods for the synthesis of chemical compounds Methods for synthesis of chemical compounds by catalytic transfer hydrogenation comprise forming a mixture of a starting material, a hydrogen donor material and a catalyst. The catalyst is selected from a catalytic form of carbon, a polyethylene glycol ph...	03/04/1997
5545388	Methods for the synthesis of chemical compounds Methods for synthesis of chemical compounds by catalytic transfer hydrogenation comprise forming a mixture of a starting material, a hydrogen donor material and a catalyst. The catalyst is selected from a catalytic form of carbon, a polyethylene glycol ph...	08/13/1996
5478548	Methods for the synthesis of chemical compounds Methods for synthesis of chemical compounds by catalytic transfer hydrogenation comprise forming a mixture of a starting material, a hydrogen donor material and a catalyst. The catalyst is selected from a catalytic form of carbon, a polyethylene glycol ph...	12/26/1995
5463153	Process for preparing 1-chloro-1,3-butadiene Process for preparing 1-chloro-1,3-butadiene, which consists in gas-phase dehydrochlorinating a dichlorobutene selected from 3,4-dichloro-1-butene and 1,4-dichloro-2-butene, in the presence of a catalyst selected from lanthanum phosphate and lanthanum pho...	10/31/1995
5396002	Process to produce vinylidene chloride using phase transfer catalyst The invention concerns a process for producing unsaturated compounds from chlorinated alkanes by dehydrochlorination wherein a phase transfer catalyst is used during reaction of chlorinated alkane with aqueous base. After dehydrochlorination, the products...	03/07/1995
5237114	Removal of catalyst from chloroprene by treatment with oxy acid Quaternary ammonium phase transfer catalyst is removed from the dehydrochlorination product of 3,4-dichlorobutene-1 by treatment of the organic, chloroprene-containing phase with an oxy acid which combines with the catalyst to form a separate phase....	08/17/1993
5210344	Dehydrohalogenation of 1,1,2-trichloroethane using cyclic amines In a process for production of vinylidene chloride by dehydrohalogenation of 1,1,2-trichloroethane using a base, improved selectively for formation of vinylidene chloride is obtained by using as the base a cyclic amine having a pKa greater than...	05/11/1993
5196617	Method of hydrodehalogenating halogenated organic compounds in aqueous environmental sources A process for hydrodehalogenating halogenated organic compounds present in a contaminated aqueous environmental source in which the halogenated organic compounds are reacted with hydrogen gas or a source of hydrogen gas in the presence of a catalyst of pa...	03/23/1993
5151263	Process for the catalyic decomposition of chlorofluoro-alkanes A process for the catalytic decomposition of chlorofluoro-alkanes commonly named as "flons" into harmless substances against destructing ozone layer of the stratosphere by using the catalyst comprising alumina or alumina -silica complexed oxide, wherein t...	09/29/1992
5107040	Dehydrohalogenation using magnesium hydroxide A process comprising contacting a solvent, magnesium hydroxide, and a halogenated hydrocarbon at a pressure sufficient to keep the solvent and the halogenated hydrocarbon under liquid conditions, and a temperature greater than 150° C. under conditions su...	04/21/1992
5099085	Chlorination reactions and oxychlorination reactions in the presence of honeycomb monolithic catalyst supports The use of hitherto known supported catalysts in chlorination processes and oxychlorination processes leads to high pressure drops and to the formation of hot spot temperatures in the reactor. When honeycomb monolithic catalyst supports provided with a mu...	03/24/1992
4849561	Liquid phase process for dehydrochlorination of haloalkanes in the presence of an initiator based on an organic chlorinated product The liquid phase dehydrochlorination of haloalkanes is performed with an initiator mainly comprising decachlorobutane and/or octachloro-1-butene. The process is applicable, in particular, to the production of chloroethylenes from the corresponding polychloroet...	07/18/1989
4816609	Process and catalyst for the dehydrohalogenation of halogenated hydrocarbons An unsaturated halohydrocarbon such as vinylidene chloride is produced by the dehydrohalogenation of haloalkanes such as 1,1,1-trichloroethane or 1,1,2-trichloroethane, in the presence of a novel mixed salt catalyst containing a Group IA metal cation such...	03/28/1989
4650914	Process for producing 1,1,2,3-tetrachloropropene A process is disclosed for preparing 1,1,2,3-tetrachloropropene comprising allylic rearrangement of 2,3,3,3-tetrachloropropene using a substantially anhydrous ferric chloride catalyst. Alternatively, 1,1,2,3-tetrachloropropene is prepared by dehydrochlori...	03/17/1987
4629816	Process for the production of 2,3-dichlorobutadiene-(1,3) 2,3-Dichlorobutadiene-(1,3) is obtained from 2,3,4-trichlorobutene-1 by dehydrohalogenation in the presence of a phase transfer catalyst, an inhibitor and oxygen according to an improved process in which the aqueous solution of an alkali metal hydroxide i...	12/16/1986
4613709	Process for the pyrolytic dehydrochlorination of haloalkanes in the presence of an initiator based on chlorinated product and the initiator employed in such a process The pyrolytic dehydrochlorination of haloalkanes is carried out with an initiator comprising chiefly decachlorobutane and octachloro-1-butene. The process can be applied particularly to the production of chloroethylenes from the corresponding polychloroethanes...	09/23/1986
4605800	Process for the manufacture of chloroprene An improved process for the catalytic dehydrochlorination of 3,4-dichlorobutene-1 with aqueous alkali, wherein the effluent from the dehydrochlorination reactor is separated into phases, and the organic phase is steam-stripped at low temperature (below ab...	08/12/1986
4535194	Process for producing 1,1,2,3-tetrachloropropene A process is disclosed for preparing 1,1,2,3-tetrachloropropene comprising allylic rearrangement of 2,3,3,3-tetrachloropropene using a substantially anhydrous ferric chloride catalyst. Alternatively, 1,1,2,3-tetrachloropropene is prepared by dehydrochlori...	08/13/1985
4418232	Dehydrohalogenation process Improvement in the catalytic dehydrohalogenation of a halogenated hydrocarbon to an ethylenically unsaturated product with aqueous alkali in a series of reactors in a cascade arrangement, wherein the fresh alkali feed is relocated from the first reactor t...	11/29/1983
4271325	Process for the manufacture of 1,1-dihalo-4-methyl-1,3-pentadienes The dehydrohalogenation of a 1,1,1,3-tetrahalo-4-methylpentane to a 1,1-dihalo-4-methyl-1,3-pentadiene is accomplished in the liquid phase in the presence of a catalytic amount of stannic chloride. The diene is a useful intermediate in the manufacture of ...	06/02/1981
4207267	Dehydrochlorination of 1,2-dichloroethane 1,2-Dichlorethane is dehydrochlorinated by direct contact with a molten salt including the higher and lower valent forms of a multivalent metal chloride and generally also the oxychloride of the metal with ethane being present to increase selectivity to v...	06/10/1980
4094915	Recovery of 12-dichloroethane from vinyl chloride production effluent An effluent from a process for producing vinyl chloride includes 1,2-dichloroethane and heavier components, with the 1,2-dichloroethane being recovered, in a heavy ends stripping column by use of ethane and/or ethylene as stripping gas. The stripping gas ...	06/13/1978
4078008	Process for the preparation of dienes A process for the preparation of a diene of the formula ##STR1## in which X and Y are independently fluorine, chlorine or bromine Which comprises contacting a 1,1,1-trihalo-4-methyl-4-hydroxypentane of the formula ##STR2## in which X and Y have ...	03/07/1978
3981937	Dehydrohalogenation of 3,4-dichloro-1-butene Dichlorobutene is treated with aqueous inorganic alkali in the presence of a catalytic amount of a quaternary ammonium compound catalyst to dehydrochlorinate the dichlorobutene and directly form chloroprene....	09/21/1976
3963584	Recovery of 1,2-dichloroethane from vinyl chloride production effluent An effluent from a process for producing vinyl chloride includes 1,2-dichloroethane and heavier components, with the 1,2-dichloroethane being recovered, in a heavy ends stripping column by use of ethane and/or ethylene as stripping gas. The stripping gas ...	06/15/1976
3937744	Vinyl chloride process Process for producing vinyl chloride from ethane by contacting, in a first reactor, ethane and chlorine and/or hydrogen chloride, as fresh feed, and as recycle, hydrogen chloride, ethyl chloride, ethylene and unconverted ethane with a molten mixture, incl...	02/10/1976
3935288	Production of olefinic halides Olefinic halides are produced by catalytic dehydrohalogenation of the corresponding saturated halide by direct contact thereof with a melt containing a multivalent metal halide in its higher and lower valence state. In particular, 1,2-dichloroethane is de...	01/27/1976

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Class 570/228 - Catalyst in liquid phase