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    • 3. 发明授权
    • Vinyl chloride process
    • 乙烯氯化物工艺
    • US3937744A
    • 1976-02-10
    • US153374
    • 1971-06-15
    • Herbert Riegel
    • Herbert Riegel
    • B01J27/10B01J35/12B01J37/14C07C17/154C07C21/02
    • B01J37/14B01J27/10B01J35/12C07C17/154
    • 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, including cuprous chloride, cupric chloride and copper oxychloride, to produce a reaction effluent including vinyl chloride, dichloroethane, primarily 1,2-dichloroethane, and the aforementioned recycle components. The vinyl chloride is recovered as product, the recycle components are recovered and recycled to the first reactor, and the 1,2-dichloroethane is recovered and recycled to the first reactor or contacted in a second reactor with a molten mixture including cuprous and cupric chloride to dehydrochlorinate the 1,2-dichloroethane to vinyl chloride. The molten mixture from the first reactor or second reactor, if employed, is contacted in a third reactor with molecular oxygen to generate copper oxychloride and melt from the third reactor is passed to the first reactor. 1,1-dichloroethane, if produced, may be passed to the first or second reactor for dehydrochlorination to vinyl chloride.
    • 6. 发明授权
    • Recovery of chlorine values in integrated process for oxychlorination
and combustion of chlorinated hydrocarbons
    • 在氯化氢氯化和燃烧氯化烃的综合过程中回收氯值
    • US4351819A
    • 1982-09-28
    • US228463
    • 1981-01-26
    • Herbert RiegelChiung-Yuan Huang
    • Herbert RiegelChiung-Yuan Huang
    • C07C17/15C01B7/01C01B9/02C07C17/00C07C17/38C07C67/00C07C21/00
    • C01B7/01C07C17/38Y02P20/125
    • In an integrated process for oxychlorination and combustion of chlorinated hydrocarbons, chlorinated hydrocarbon is burned to recover chlorine values essentially as hydrogen chloride. Hydrogen chloride is recovered from the effluent from the combustion by absorption with aqueous hydrogen chloride. Hydrogen chloride recovered by the absorption is subsequently recovered and employed in an oxychlorination reaction. A gas containing hydrogen chloride, water vapor and some oxygen recovered from the oxychlorination is cooled to condense aqueous hydrogen chloride which is employed in the absorption for recovering hydrogen chloride. The remaining gas is employed in the combustion of chlorinated hydrocarbons. The process has particular applicability to an oxychlorination reaction of the type wherein a molten salt containing the higher and lower valent chlorides of a multivalent metal is contacted with hydrogen chloride and oxygen to recover hydrogen chloride by enriching the higher valent metal chloride content of the molten salt.
    • 在氯化烃的氧氯化和燃烧的综合过程中,氯化烃被燃烧以基本上以氯化氢的形式回收氯值。 通过用氯化氢水溶液吸收,从燃烧的废液中回收氯化氢。 随后回收通过吸收回收的氯化氢并在氧氯化反应中使用。 将含有氯化氢,水蒸气和从氧氯化回收的一些氧气的气体冷却,以冷凝用于回收氯化氢的吸收中的氯化氢水溶液。 剩余气体用于氯化烃的燃烧。 该方法特别适用于将含有多价金属的较高和较低价的氯化物的熔融盐与氯化氢和氧接触的类型的氧氯化反应,通过富集熔融盐的较高价金属氯化物含量来回收氯化氢 。
    • 7. 发明授权
    • Production of phosgene
    • 生产光气
    • US4346047A
    • 1982-08-24
    • US947604
    • 1978-10-02
    • Herbert Riegel
    • Herbert Riegel
    • C01B32/80C07C51/58
    • C01B31/28
    • A molten salt containing the higher and lower valent chlorides, such as mixture of cuprous and cupric chloride, is contacted with oxygen and hydrogen chloride to enrich the salt in the higher valent metal chloride. The salt enriched in the higher valent metal chloride is contacted with carbon monoxide to both strip gaseous chlorine from the salt and produce phosgene by reaction with carbon monoxide and thereby recover essentially all chlorine values added to the salt. The reaction can be effected to provide stoichiometric quantities of carbon monoxide and chlorine in the effluent for producing additional phosgene.
    • 将含有较高和较低价的氯化物(如亚铜和氯化铜的混合物)的熔融盐与氧和氯化氢接触,以富集较高价金属氯化物中的盐。 富含高价金属氯化物的盐与一氧化碳接触,从盐中分离气态氯,并通过与一氧化碳反应产生光气,从而基本上回收所有加入盐中的所有氯值。 可以进行反应以在流出物中提供化学计量的一氧化碳和氯,以产生另外的光气。