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    • 3. 发明授权
    • Process for eliminating adsorbable organic halogen compounds from
wastewater
    • 从废水中除去可吸附的有机卤素化合物的方法
    • US5755980A
    • 1998-05-26
    • US712428
    • 1996-09-11
    • Joachim SemelHeribert Tetzlaff
    • Joachim SemelHeribert Tetzlaff
    • B01D11/04C02F1/26C02F1/58
    • C02F1/26
    • The invention relates to a process for eliminating adsorbable organic halogen compounds from an aqueous phase, in particular from wastewater or from a process solution, in which the aqueous phase is treated with a nonaqueous extraction medium in a liquid-liquid extraction, which comprises, after the extraction, subjecting the adsorbable organic halogen compounds in the extraction medium to a Wurtz-Fittig reaction. Only small amounts of noncritical products such as NaOH and Hcl, which can be readily removed, are formed in the nonaqueous extraction medium. By means of this process, the cost of the chemicals which conventionally arises in the elimination of the adsorbable organic halogen compounds is considerably decreased.
    • 本发明涉及一种从水相,特别是废水或工艺溶液中除去可吸附的有机卤素化合物的方法,其中水相用液 - 液萃取中的非水萃取介质处理,该方法包括在 提取,将萃取介质中的可吸附有机卤素化合物进行Wurtz-Fittig反应。 在非水萃取介质中只形成少量的非临界产物如NaOH和Hcl,可以容易地除去。 通过这个过程,在消除可吸附的有机卤素化合物中常规产生的化学品的成本大大降低。