SEPARATION OF TUNGSTEN FROM AMMONIUM MOLYBDATE SOLUTIONS
    1.
    发明申请
    SEPARATION OF TUNGSTEN FROM AMMONIUM MOLYBDATE SOLUTIONS 审中-公开
    从莫斯科解决方案中分离钨

    公开(公告)号:US20130243673A1

    公开(公告)日:2013-09-19

    申请号:US13577678

    申请日:2011-02-07

    IPC分类号: C22B34/34

    CPC分类号: C22B34/34 C01G49/0018

    摘要: Disclosed is process for the separation of tungsten from molybdenum and more particularly from ammonium molybdate solutions. The method comprises dissolving technical grade molybdenum trioxide in an aqueous ammonium hydroxide solution and further adding certain metal generating compounds to the aqueous solution thereby generating a tungsten-containing precipitate. Calcium, iron and manganese are the preferred metal generating compounds of the invention. Certain temperature and pH values of the system, as disclosed, are preferred for the precipitation of the tungsten from the ammonia molybdate solution.

    摘要翻译: 公开了从钼分离钨,更特别是钼酸铵溶液的方法。 该方法包括将工业级三氧化钼溶解在氢氧化铵水溶液中,并进一步向水溶液中加入某些产生金属的化合物,从而产生含钨沉淀物。 钙,铁和锰是本发明优选的金属生成化合物。 如所公开的,系统的某些温度和pH值优选用于从钼酸铵溶液中沉淀钨。