Metal stripping system and an operation process therefor
    3.
    发明授权
    Metal stripping system and an operation process therefor 失效
    金属剥离系统及其操作过程

    公开(公告)号:US4830836A

    公开(公告)日:1989-05-16

    申请号:US713862

    申请日:1985-03-20

    摘要: A metal stripping system and an operation process therefor which includes the following elements and steps. A main part of this system is a crystallization apparatus for metal stripping comprising a mixing zone of organic solvent and fluoride series stripping solution, a settling zone for organic solvent, a settling zone for stripping solution, a separation zone for fluorinated metal complex crystal and a stripping solution cooling zone. In the operation of the system wherein the organic solvent containing extracted metal ions is contacted with the fluoride series stripping solution to deposit the fluorinated metal complex crystal and then the crystal is recovered as metal or metal oxide, the stripping solution is circularly used by supplying NH.sub.4 HF.sub.2 solution to the cooling zone, supplying the stripping solution discharged from the apparatus and absorbed with a decomposition gas of the crystal to the mixing zone, and supplying a filtrate after the crystal separation to the settling zone for stripping solution.

    摘要翻译: 一种金属剥离系统及其操作过程,其包括以下元件和步骤。 该系统的主要部分是用于金属剥离的结晶装置,其包括有机溶剂和氟化物系剥离溶液的混合区,有机溶剂的沉降区,剥离溶液的沉降区,氟化金属络合物晶体的分离区和 汽提溶液冷却区。 在其中使含有萃取的金属离子的有机溶剂与氟化物系列剥离溶液接触以沉积氟化金属络合物晶体然后将晶体作为金属或金属氧化物回收的系统的操作中,通过供应NH 4 HF 2来循环使用汽提溶液 向冷却区提供溶液,供给从该装置排出并被分解气体吸收到混合区的汽提溶液,并将晶体分离后的滤液供给沉淀区进行汽提溶液。