Metal scavenger and metal scavenging process
    3.
    发明授权
    Metal scavenger and metal scavenging process 失效
    金属清除剂和金属清除工艺

    公开(公告)号:US4670160A

    公开(公告)日:1987-06-02

    申请号:US905977

    申请日:1986-09-11

    IPC分类号: C02F1/52 C08G73/02 C02F1/62

    摘要: A metal scavenger is composed of an addition product of a polyamine and an epihalohydrin. The addition product contains as substituent or substituents at least one carbodithio group and/or at least one carbodithioate salt group introduced therein by substituting the corresponding number of active hydrogen atom or atoms in the addition product. Metals can be scavenged from waste water by adding the metal scavenger together with at least one of sodium monosulfide, sodium polysulfides and sodium hydrogensulfide.

    摘要翻译: 金属清除剂由多胺和表卤代醇的加成产物组成。 加成产物通过用相应数目的加成产物中的活性氢原子或原子代替引入至少一个碳二硫基和/或至少一个碳二硫酸盐基团作为取代基或取代基。 通过将金属清除剂与单硫化钠,多硫化钠和硫酸氢钠中的至少一种一起加入,可以从废水中清除金属。