Process for recovering uranium and/or thorium from a liquid containing
uranium and/or thorium
    1.
    发明授权
    Process for recovering uranium and/or thorium from a liquid containing uranium and/or thorium 失效
    从含铀和/或钍的液体中回收铀和/或钍的工艺

    公开(公告)号:US4338286A

    公开(公告)日:1982-07-06

    申请号:US143116

    申请日:1980-04-23

    摘要: A process for recovering uranium and/or thorium from a liquid containing uranium and/or thorium is disclosed, which comprises making a precipitate composed mainly of amorphous silica formed by adding water glass to the liquid containing uranium and/or thorium, capturing the uranium and/or thorium in the liquid by the precipitate, treating the precipitate with acid to elute the captured uranium and/or thorium, adding ammonia or hydrogen peroxide to an acidic solution containing the eluted uranium and/or thorium to form a precipitate composed of ammonium salt or peroxide of the uranium and/or thorium, and filtering out the ammonium salt or peroxide precipitate. Thus, high purity solid uranium and/or thorium reutilizable for manufacture of nuclear fuel material can be recovered in high yield.

    摘要翻译: 公开了一种从含有铀和/或钍的液体中回收铀和/或钍的方法,其中包括通过向含有铀和/或钍的液体中加入水玻璃而形成主要由无定形二氧化硅组成的沉淀物,捕获铀和 /或通过沉淀物处理液体中的钍,用酸处理沉淀物以洗脱捕获的铀和/或钍,向含有洗脱的铀和/或钍的酸性溶液中加入氨或过氧化氢以形成由铵盐 或铀和/或钍的过氧化物,并过滤出铵盐或过氧化物沉淀物。 因此,可以以高产率回收用于制造核燃料材料的高纯度固体铀和/或钍。