Removal of boron and fluoride from water
    9.
    发明授权
    Removal of boron and fluoride from water 失效
    从水中去除硼和氟化物

    公开(公告)号:US6039789A

    公开(公告)日:2000-03-21

    申请号:US49331

    申请日:1998-03-27

    摘要: A process for reducing boron and/or fluoride ion content of water. Feed water is contacted, in the presence of magnesium, with an alkaline hydroxide to produce treated water and a magnesium precipitate containing boron and fluorine. The precipitate is separated from the treated water. The boron content of water is reducible from above about 0.8 mg/L to below about 0.7 mg/L, and the fluoride ion content is reducible from above about 1 mg/L to below about 0.9 mg/L. The magnesium precipitate is optionally used to neutralize pressure oxidized ore slurry or roaster calcine in the context of gold recovery operations.

    摘要翻译: 一种降低水中硼和/或氟离子含量的方法。 给水在镁的存在下与碱性氢氧化物接触以产生处理过的水和含有硼和氟的镁沉淀物。 将沉淀物与处理过的水分离。 水的硼含量从约0.8mg / L至约0.7mg / L以下还原,氟离子含量可从约1mg / L以上降低至约0.9mg / L以下。 任选地使用镁沉淀物在金回收操作的情况下中和压力氧化矿浆或焙烧煅烧物。