Arsenic sorbent for remediating arsenic-contaminated material
    1.
    发明授权
    Arsenic sorbent for remediating arsenic-contaminated material 失效
    用于修复砷污染物质的砷吸附剂

    公开(公告)号:US08227378B2

    公开(公告)日:2012-07-24

    申请号:US13192909

    申请日:2011-07-28

    IPC分类号: C01B31/08

    摘要: An arsenic sorbent includes monohydrocalcite that has been precipitated by mixing an aqueous solution of a soluble carbonate or a carbonate with an aqueous solution that includes an Mg2+ ion and a Ca2+ ion in a ratio “Mg/Ca” of 0.3 or more, the monohydrocalcite having a molar ratio “Mg/(Ca+Mg)” of 0.1 or less. The arsenic sorbent exhibits a high arsenic sorption ability, and can stably retain a sorbate. A purification method using the same is also disclosed.

    摘要翻译: 砷吸附剂包括通过将可溶性碳酸盐或碳酸盐的水溶液与包含Mg 2+离子和Ca 2+离子的水溶液以“Mg / Ca”为0.3以上的水溶液混合而沉淀的单氢钙矿,所述单氢钙矿具有 摩尔比“Mg /(Ca + Mg)”为0.1以下。 砷吸附剂显示出高的砷吸附能力,并且可以稳定地保持山梨酸盐。 还公开了使用其的纯化方法。