Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 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 |
| 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 |
| 5763710 | Oxychlorination process A method for the catalytic oxychlorination of ethane to VCM comprising combining ethane and a chlorine source in an oxychlorination reactor in the presence of an oxychlorination catalyst, the reaction conditions being selected to reduce the influence of t... | 06/09/1998 |
| 5175382 | Preparation of 1,2-Dichloroethane 1,2-Dichloroethane is prepared by reacting ethylene, hydrogen chloride and oxygen or an oxygen-containing gas in the presence of a copper-containing catalyst by a process in which first hydrogen chloride and oxygen or an oxygen-containing gas are reacted ... | 12/29/1992 |
| 5110997 | Process for preventing fouling in the production of ethylene dichloride A method of inhibiting fouling in a crude ethylene dichloride stream comprises introducing into the stream an inhibiting amount of an antifoulant selected from (A) an acylated amine (e.g., reaction product of polyisobutylene and maleic anhydride) and a po... | 05/05/1992 |
| 4899000 | Production of allyl chloride A process is provided for the production of allyl chloride from three carbon atom hydrocarbons (propane and/or propylene) using hydrogen chloride or hydrogen chloride/chlorine mixtures as the chlorinating agent. The process includes reaction steps operate... | 02/06/1990 |
| 4851134 | Process and apparatus for the removal of solid particles from liquid chlorinated hydrocarbons A process for the removal of solid particles from a mixture containing at least one liquid chlorinated hydrocarbon is described. The solids-containing liquid mixture is introduced into at least one hydrocyclone having a downstream separator. The liquid mi... | 07/25/1989 |
| 4737594 | Process for the manufacture of vinyl chloride A process for the manufacture of vinyl chloride by the condensation of methyl chloride, obtained from methane or from methanol, followed by an oxychlorination of the condensation products and then by a dehydrochlorination. The condensation of methyl chlor... | 04/12/1988 |
| 4544350 | Burner apparatus for simultaneously incinerating liquid, dry gas and wet gas streams An improved method and burner apparatus for simultaneously incinerating liquid, dry gas and wet gas streams such as the vent streams in a chemical plant or the like are provided. The method comprises combining the dry gas and wet gas streams, heating the ... | 10/01/1985 |
| 4380682 | Balanced chlorination process The present invention relates to a novel process of halogenating aliphatic hydrocarbons which comprises, first non-selectively oxyhalogenating a C2 -C6 aliphatic hydrocarbon to a partially halogenated intermediate product having an o... | 04/19/1983 |
| 4230668 | Process and apparatus for producing halogenated unsaturated hydrocarbons Process and apparatus for producing vinyl chloride monomer characterized by conjoint chlorination and dehydrochlorination reactions carried out in the presence of fluidized solids which provide efficient heat transfer within and between the two reaction z... | 10/28/1980 |
| 4172099 | Process for chlorination of ethylene Process for the chlorination of ethylene in which the excess heat of reaction from the chlorination is utilized for fractionation of the reaction product and another dichloroethane containing stream, and in which an impure, neutralized, and dried ethylene... | 10/23/1979 |
| 4129604 | Reactor effluent quench system Process for recovering hydrogen chloride from an aqueous hydrogen chloride off-gas from an oxychlorination reaction wherein hydrogen chloride is separated from the off-gas as an aqueous solution of hydrogen chloride and employed as feed to an oxychlorinat... | 12/12/1978 |
| 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 |
| 4061471 | Molten salt lift gas system for production of chlorinated hydrocarbons In the production of chlorinated hydrocarbons by the use of molten salts wherein molten salt is oxidized in a first reactor and lifted by lift gas in a first lift gas circuit into a chlorinated hydrocarbon production reactor, with the molten salt withdraw... | 12/06/1977 |
| 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 |
