POTASH PROCESSING WITH MECHANICAL VAPOR RECOMPRESSION
    3.
    发明申请
    POTASH PROCESSING WITH MECHANICAL VAPOR RECOMPRESSION 审中-公开
    具有机械蒸气回收的处理

    公开(公告)号:WO2015023252A2

    公开(公告)日:2015-02-19

    申请号:PCT/US2013054554

    申请日:2013-08-12

    CPC classification number: C01D3/06 Y02P20/129

    Abstract: A potash-extraction system and method for extracting potash from a brine containing potash without the use of water-consuming evaporation ponds or additional chemicals is disclosed. The potash processing system uses a mechanical-vapor recompression (MVR) cycle to separate salt and then potash from a sylvinite brine containing salt and potash. In embodiments, the latent heat recovered from condensing vapor may be used to boil the brine to precipitate some salt and remove some water (in the form of water vapor) from the brine. The remaining potash-concentrated brine may then be cooled to precipitate potash from the solution. The precipitated potash may then be further processed for final use.

    Abstract translation: 公开了一种钾肥提取系统和从含有钾盐的盐水中提取钾肥的方法,而不使用耗水量的蒸发池或其他化学品。 钾盐处理系统使用机械蒸气压缩(MVR)循环来分离盐,然后从含有盐和钾盐的盐水盐水中分离出钾。 在实施方案中,从冷凝蒸气回收的潜热可用于煮沸盐水以沉淀一些盐并从盐水中除去一些水(以水蒸气的形式)。 然后可以将剩余的钾盐浓缩的盐水冷却以从溶液中沉淀钾。 然后可以进一步处理沉淀的钾盐以供最终使用。

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