Treatment of acrylonitrile waste water with activated carbon
    3.
    发明授权
    Treatment of acrylonitrile waste water with activated carbon 失效
    用活性炭处理丙烯腈废水

    公开(公告)号:US4141826A

    公开(公告)日:1979-02-27

    申请号:US782801

    申请日:1977-03-30

    IPC分类号: C02F1/28 C02F9/00 C02C5/02

    CPC分类号: C02F1/283 C02F2101/32

    摘要: Waste water produced in an acrylonitrile plant and containing significant amounts of acrylonitrile and acrylic acid is processed so as to reduce its organics content for disposal purposes and to recover the acrylonitrile and acrylic acid contained therein. The waste water is treated by contact with activated carbon to adsorb the organics contained therein. The activated carbon is periodicaly regenerated with a desorbing liquid and the desorbate product is distilled to yield acrylonitrile and acrylic acid. Every fifth regeneration cycle, the activated carbon is regenerated thermally rather than means of a liquid in order to restore its activity to its original value.

    摘要翻译: 处理在丙烯腈装置中生产的含有大量丙烯腈和丙烯酸的废水,以减少其有机物含量进行处理,并回收其中所含的丙烯腈和丙烯酸。 通过与活性炭接触来处理废水以吸附其中所含的有机物。 活性炭用解吸液定期再生,脱附产物蒸馏得到丙烯腈和丙烯酸。 每五个再生循环中,活性炭是热再生而不是液体的方式,以将其活性恢复到其原始值。