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    • 94. 发明公开
    • VERFAHREN ZUR HERSTELLUNG VON CHLOR AUS CHLORWASSERSTOFF UND SAUERSTOFF
    • EP2027065A2
    • 2009-02-25
    • EP07764547.1
    • 2007-05-21
    • Bayer MaterialScience AG
    • WEBER, RainerBULAN, AndreasHAAS, MichelWARSITZ, RafaelWERNER, Knud
    • C01B7/04
    • C01B7/04C01B7/0743C01B13/0251
    • The invention relates to a method for producing chlorine by the thermal reaction of hydrogen chloride with oxygen using catalysts and/or by the non-thermally activated reaction of hydrogen chloride with oxygen, in which a) the gaseous mixture produced during the reaction, consisting at least of the target products chlorine and water, non-converted hydrogen chloride and oxygen, additional minor constituents such as carbon dioxide and nitrogen and optionally phosgene, is cooled to condense hydrochloric acid, b) the liquid hydrochloric acid thus produced is isolated from the gaseous mixture, c) the residual water in the gaseous mixture is removed, in particular by washing with concentrated sulphuric acid. The method is characterised in that d) oxygen and optionally also minor constituents, in particular CO2 and/or N2 are eliminated from the resultant gaseous mixture by gas permeation.
    • 本发明涉及一种通过使用催化剂和/或通过氯化氢与氧的非热活化反应使氯化氢与氧气热反应来生产氯气的方法,其中a)反应过程中产生的气体混合物由 将至少目标产物氯和水,未转化的氯化氢和氧气,另外的次要组分如二氧化碳和氮气以及任选的光气冷却以冷凝盐酸,b)将由此产生的液体盐酸与气体 混合物,c)除去气体混合物中的残余水,特别是通过用浓硫酸洗涤。 该方法的特征在于,d)通过气体渗透从所得到的气体混合物中除去氧气和任选的少量组分,特别是CO 2和/或N 2。