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| Number | Title | Issue Date |
| 8030530 | Swing reactor and process for oxychlorination A reactor with swing feeds is provided for oxychlorination. This reactor comprises multiple inlets with controls capable of introducing feed streams sequentially to the reactor. In one configuration, a feed stream comprises a paraffin or olefin hydrocarbon such as m... | 10/04/2011 |
| 7335806 | Integrated process for producing 1,2-dichloroethylene Describes an integrated process for preparing 1,2-dichloroethylenes. In the described process organic feed material, e.g., C2-C4 aliphatic hydrocarbons and/or chlorinated derivatives of such aliphatic hydrocarbons, is introduced into a first re... | 02/26/2008 |
| 7309804 | Process for purifying 1,2-dichloroethane A process for the preparation of 1,2-dichloroethane that is very pure with respect to chloral or/and chloral hydrate and carbon dioxide is described herein. The process comprises oxychlorination of ethylene, using hydrogen chloride and an oxygen-containing gas, and ... | 12/18/2007 |
| 7196236 | Direct one-step synthesis of trifluoromethyl iodide A catalytic one-step process for the production of CF3I by reacting, in the presence of a source of oxygen, a source of iodine a reactant of the formula: CF3R where R is —COOH, —COX, —CHO, —COOR2 and —SO... | 03/27/2007 |
| 7161049 | Process for purifying hydrofluoropropanes A process is disclosed for purifying a hydrofluoropropane of undesirable C2–C4 olefinic and C1–C4 saturated chlorinated impurities, comprising the steps of: contacting a first mixture of hydrofluoropropane, olefinic im... | 01/09/2007 |
| 7126035 | Catalyst composition for oxychlorination The present invention relates to a catalyst composition for the oxychlorination of ethylene, comprising a mixture of metal salts on a support, where said metal salts are applied to the support in such ratios that the catalyst composition comprises a) fr... | 10/24/2006 |
| 7091391 | Methane to olefins The specification discloses a process for the production of olefins, including ethylene, propylene and butenes, from methane, the process comprising first, second and third reaction steps operated in tandem. In the first reaction step, hydrogen chloride, perchloroet... | 08/15/2006 |
| 7001573 | Process for removing fine dust from a fluidized-bed reactor, in particular for the oxychlorination of ethylene By a process for removing fine dust from a fluidized-bed reactor, in particular for the oxychlorination of ethylene, is intended to permit specific control of the amount of fine dust particles in a reactor while reducing the height of the reactor and the same time f... | 02/21/2006 |
| 6984763 | Oxidative halogenation and optional dehydrogenation of c3+hydrocarbons An oxidative halogenation and optional dehydrogenation process involving contacting a reactant hydrocarbon having three or more carbon atoms, such as propane or propene, or a halogenated derivative thereof, with a source of halogen, and optionally, a source of oxyge... | 01/10/2006 |
| 6933417 | Process for vinyl chloride manufacture from ethane and ethylene with partial CHl recovery from reactor effluent A process for producing vinyl chloride monomer from ethylene and ethane having input of significant quantities of both ethane and ethylene in input streams to the affiliated reactor where hydrogen chloride in the reactor effluent is only partially recovered from the... | 08/23/2005 |
| 6911185 | Fluidized-bed reactor for the oxychlorination of ethyene, oxygen and HCl A fluidized-bed reactor for the oxychlorination of ethylene, oxygen and HCL, comprises a heat exchanger, having tube packets in the fluidized-bed for releasing the heat evolved from exothermic reaction to a heat-transfer medium in the tube packets, in particular to ... | 06/28/2005 |
| 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 |
| 6872684 | Catalysts for oxychlorination of ethylene to 1,2-dichloroethane Catalysts for oxychlorination of ethylene to 1,2-dichloroethane, comprising compounds of copper and magnesium supported on alumina, in which the copper, expressed as metal, is present in an amount of 7 to 12% by weight and the Mg/Cu ratio is 0.05 to 1, and wherein t... | 03/29/2005 |
| 6844474 | Process for the production of difluoromethane The present invention provides a vapor phase process for the production of difluoromethane, HFC-32. The process of this invention provides for the preparation of HFC-32 by a process that exhibits both good product yield and selectivity. ... | 01/18/2005 |
| 6835860 | Iodohydroxylation of olefins Iodohydroxylated olefins can be prepared by treating an olefin with an aqueous solution of an iodine monohalide selected from iodine monochloride and iodine monobromide. ... | 12/28/2004 |
| 6821924 | Oxyhalogenation process using catalyst having porous rare earth halide support An oxidative halogenation process involving contacting a hydrocarbon, for example, ethylene, or a halogenated hydrocarbon with a source of halogen, such as hydrogen chloride, and a source of oxygen in the presence of a catalyst so as to form a halocarbon, preferably... | 11/23/2004 |
| 6803342 | Catalytic composition and process for the oxychlorination of ethylene using such a composition Catalytic composition comprising copper chloride, magnesium chloride and potassium chloride deposited on an alumina, which may be used in particular for the oxychlorination of ethylene into 1,2-dichloroethane. In the processes for the oxychlorination of ethylene in ... | 10/12/2004 |
| 6680415 | Oxyhalogenation process using catalyst having porous rare earth halide support An oxidative halogenation process involving contacting a hydrocarbon, for example, ethylene, or a halogenated hydrocarbon with a source of halogen, such as hydrogen chloride, and a source of oxygen in the presence of a catalyst so as to form a halocarbon,... | 01/20/2004 |
| 6452059 | Catalysts for the oxi-chlorination of ethylene to 1,2-dichloroethane A catalyst for the oxi-chlorination of ethylene to 1,2-dichloroethane which comprises cupric oxychloride (CuOHCl) as an active component. CuOHCl is preferably supported on a porous support such as alumina and used in fixed-bed oxi-chlorination processes.... | 09/17/2002 |
| 6452058 | Oxidative halogenation of C1 hydrocarbons to halogenated C1 hydrocarbons and integrated processes related thereto An oxidative halogenation process involving contacting a reactant hydrocarbon selected from methane, a halogenated C1 hydrocarbon, or a mixture thereof with a source of halogen and, preferably, a source of oxygen in the presence of a rare earth... | 09/17/2002 |
| 6437204 | Process for the VCM production In a process for the production of VCM, the gaseous reactants and an inert carrier gas are fed into an adiabatic reaction zone in the oxychlorination section, both reaction zones being associated with an integral fluidised bed, the cooled reaction zone co... | 08/20/2002 |
| 6417414 | Process for the preparation of 1,2-dichloroethane by oxychlorination The present invention is directed to a process for preparing 1,2-dichloroethane by reacting ethene with hydrogen chloride and oxygen over a copper-containing fluidized-bed catalyst. The discharge of the catalyst from the reactor per se is avoided if the c... | 07/09/2002 |
| 6204418 | Process for the chlornation of hydrocarbons A process is provided for the chlorination of aliphatic hydrocarbons containing 1 to 4 carbon atoms using hydrogen chloride as the source of chlorine. The process comprises reaction steps operated in tandem in separate zones. First, an unsaturated aliphat... | 03/20/2001 |
| 6191329 | Process for specific energy saving, especially in the oxychlorination of ethylene A process for specific energy saving, especially in processes involving the oxychlorination of ethylene, facilitates recovery of as much sensible heat to be used for other purposes. In the process the gas mixture leaving the oxychlorination reactor is coo... | 02/20/2001 |
| 6177599 | Method for reducing formation of polychlorinated aromatic compounds during oxychlorination of C1-C3 hydrocarbons An improved process is disclosed for manufacturing chlorinated hydrocarbon by way of oxychlorination which yields reduced levels of environmental toxins such as, chlorobenzenes, polychlorinated biphenyls, polychlorinated dibenzodioxins and polychlorinated... | 01/23/2001 |
| 5986152 | Supported catalyst, process for its production as well as its use in the oxychlorination of ethylene A supported catalyst includes: a) 0.5-15 wt. % of one or more Cu-II compounds, the quantitative amounts referring to copper metal; b) 0.1-8 wt. % of one or more alkali metal compounds, the quantitative amounts referring to alkali metal; c) 0.1-10 wt. % of... | 11/16/1999 |
| 5905177 | Method for producing 1,2-dichloroethane In a method for producing 1,2-dichloroethane by an oxychlorination reaction of ethylene, hydrogen chloride and oxygen, a continuous method for producing 1,2-dichloroethane, which comprises cooling a gas discharged from an oxychlorination reactor to conden... | 05/18/1999 |
| 5750812 | Method for reducing formation of polychlorinated aromatic compounds during air oxychlorination of C1 -C3 Hydrocarbons An improved process is disclosed for manufacturing chlorinated hydrocarbon by way of a once-through air-based oxychlorination process which yields reduced levels of environmental toxins such as chlorobenzenes, polychlorinated biphenyls, polychlorinated di... | 05/12/1998 |
| 5600043 | Oxychlorination process The subject invention relates to a process for oxychlorination of ethylene to produce 1,2-dichloroethane. The process comprises contacting a mixture of ethylene, oxygen or oxygen containing gas and hydrogen chloride with a fixed or fluidized catalyst comp... | 02/04/1997 |
| 5527754 | Catalytic composition and process for the oxychlorination of ethylene using such a composition Catalytic composition comprising copper chloride, magnesium chloride and caesium chloride deposited on an alumina, which may be used in particular for the oxychlorination of ethylene into 1,2-dichloroethane. In the processes for the oxychlorination of eth... | 06/18/1996 |
| 5430181 | Process for improving a controlled oxidation reaction Process for improving a controlled oxidation reaction between at least one reactant and oxygen, in which at least one reactant is reacted with oxygen or an oxygen containing gas, constituting a reaction mixture, in the presence of at least one additional ... | 07/04/1995 |
| 5382726 | Catalyst and process for oxychlorination of ethylene to EDC The subject invention relates to catalyst compositions for oxychlorination of ethylene to produce 1,2-dichloroethane. The catalysts comprise copper chloride, at least one alkali metal, at least one rare earth metal, and at least one Group IIA metal on a h... | 01/17/1995 |
| 5315051 | Process for the oxychlorination of ethylene and catalyst compositions for the oxychlorination The invention relates to a process for the oxychlorination of ethylene by means of a catalyst composition comprising an alumina support impregnated with cupric chloride, magnesium chloride and a chloride of an alkali metal chosen from sodium and lithium. ... | 05/24/1994 |
| 5262547 | Process for the production of petrochemicals Petrochemicals are produced by the vapor phase reaction of a hydrocarbon with substantially pure oxygen in the presence of a suitable catalyst. In the improved process, the principal product is removed, carbon monoxide, present in the reactor effluent as ... | 11/16/1993 |
| 5243111 | Catalytic oxychlorination of hydrocarbons to produce chlorocarbons Hydrocarbons, e.g., ethylene, are steady-state catalytically oxychlorinated into chlorocarbons, e.g., 1,2-dichloroethane, by fluidizing a fluidizable charge by directing a gaseous feedstream containing a hydrocarbon therethrough and therein oxychlorinatin... | 09/07/1993 |
| 5227549 | Synthesis of 1,2-dichloroethane by CCl4 oxychlorination of ethylene A major amount of 1,2-dichloroethane (D12) and lesser amounts of trichloroethane and tetrachloroethane are prepared by contacting carbon tetrachloride, ethylene and oxygen (or an oxygen-containing gas, notably air) with an oxychlorination catalyst at a te... | 07/13/1993 |
| 5227548 | Oxychlorination of ethylene to 1,2-dichloroethane A process for the oxychlorination of ethylene to 1,2-dichloroethane using an oxychlorination catalyst composition comprising a mixture of copper chloride, magnesium chloride and potassium chloride carried on a support therefor.... | 07/13/1993 |
| 5202511 | Catalyst diluent for oxychlorination process Alumina is used as a support for the CuCl2 catalyst and as a diluent in the oxychlorination of ethylene. When a low surface area alumina, e.g. high purity alpha-alumina, is used as diluent for the reaction, reduced oxidation and less chlorinated by-produc... | 04/13/1993 |
| 5200376 | Catalysts for oxyhydrochlorination of methane Catalysts for the oxyhydrochlorination of methane into methyl chloride, comprising a chemical compound of great specific surface area of the zeolite type which is partially exchanged at least with divalent metallic cations, preferably Cu++ cat... | 04/06/1993 |
| 5185479 | Process for methyl alcohol An improved method of producing methyl alcohol (methanol) from methane is provided using two reaction steps operated in tandem. In the first reaction step two chemical reactions occur simultaneously: a) perchloroethylene (CCl2 CCl2) ... | 02/09/1993 |
