利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

2 条记录 (耗时 0.025 秒)

    Heap bioleaching process for the extraction of zinc
    1.
    发明申请
    Heap bioleaching process for the extraction of zinc 失效
    用于提取锌的堆生物浸出过程

    公开(公告)号：US20070193413A9

    公开(公告)日：2007-08-23

    申请号：US10483334

    申请日：2002-07-10

    申请人： Juris Harlamovs ,  Daniel Ashman ,  Jose Alberto Dominguez ,  Hector Lizama ,  Dilipkumar Makwana ,  Andrew Stradling

    发明人： Juris Harlamovs ,  Daniel Ashman ,  Jose Alberto Dominguez ,  Hector Lizama ,  Dilipkumar Makwana ,  Andrew Stradling

    IPC分类号： C22B3/18

    CPC分类号： C22B3/18 ,  C22B19/22 ,  C22B19/26 ,  Y02P10/234

    摘要： A method of extracting zinc from a sulphidic ore is provided which comprises bioleaching the ore in a heap with acidophilic microorganisms to produce a pregnant leach solution which is recovered from the bottom of the heap. An integrated process which comprises subjecting the pregnant leach solution to neutralization and solvent extraction to produce a concentrated zinc solution is also provided. Zinc may be recovered from the concentrated solution by means of electrowinning, either in the absence or presence of manganese. Alternatively zinc may be recovered in the form of a zinc compound.

    摘要翻译： 提供了一种从硫化矿石中提取锌的方法，其中包括用酸性微生物将矿石浸入堆中生成从堆的底部回收的怀孕浸出溶液。 还提供了一种综合方法，其包括使怀孕的浸出溶液进行中和和溶剂萃取以产生浓缩的锌溶液。 锌可以在不存在或存在锰的情况下通过电解提取从浓缩溶液中回收。 或者锌可以以锌化合物的形式回收。