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    Silica removal from pregnant leach solutions
    1.
    发明授权
    Silica removal from pregnant leach solutions 有权
    从怀孕浸出液中除去二氧化硅

    公开(公告)号：US08506673B2

    公开(公告)日：2013-08-13

    申请号：US13360868

    申请日：2012-01-30

    申请人： James D Gillaspie ,  David R Baughman ,  Dennis D Gertenbach ,  Wayne W Hazen ,  George Owusu ,  John C Wilmot

    发明人： James D Gillaspie ,  David R Baughman ,  Dennis D Gertenbach ,  Wayne W Hazen ,  George Owusu ,  John C Wilmot

    IPC分类号： C22B3/20

    CPC分类号： C22B3/44 ,  C22B3/20 ,  C22B15/0071 ,  C22B15/0089 ,  Y02P10/234 ,  Y02P10/236

    摘要： The present invention relates generally to a process for removing dissolved or colloidal silica from a pregnant leach solution (“PLS”). More particularly, an exemplary embodiment of the present invention relates to a, process which mixes PLS with an acid source, preferably lean electrolyte, to induce formation of colloidal silica that can then be collected and removed. Additionally, in an exemplary embodiment of the present invention, at least one silica seeding agent is added to induce formation of colloidal silica, at least one flocculant is added to induce aggregation of the colloidal silica, and a solid-liquid separation process is utilized to remove advantageous amounts or substantially all of the colloidal silica, thereby providing relief from supersaturation of dissolved silica in the metal recovery processes.

    摘要翻译： 本发明一般涉及从怀孕浸出溶液（“PLS”）中除去溶解或胶体二氧化硅的方法。 更具体地，本发明的示例性实施方案涉及将PLS与酸源（优选贫电解质）混合以诱导形成胶体二氧化硅的方法，然后可以将其收集和除去。 此外，在本发明的一个示例性实施方案中，加入至少一种二氧化硅接种剂以诱导胶态二氧化硅的形成，加入至少一种絮凝剂以诱导胶体二氧化硅的聚集，并且使用固液分离方法 去除有利的量或基本上所有的胶态二氧化硅，从而在金属回收方法中提供了溶解二氧化硅过饱和的缓解。

    Process for multiple stage direct electrowinning of copper
    3.
    发明授权
    Process for multiple stage direct electrowinning of copper 有权
    铜的多级直接电解冶金工艺

    公开(公告)号：US07722756B2

    公开(公告)日：2010-05-25

    申请号：US12274035

    申请日：2008-11-19

    申请人： John O Marsden ,  Joanna M Robertson ,  Robert E Brewer ,  Susan R. Brewer, legal representative ,  David R Baughman ,  Philip Thompson ,  Wayne W Hazen ,  Christel M. A. Bemelmans

    发明人： John O Marsden ,  Joanna M Robertson ,  Robert E Brewer ,  David R Baughman ,  Philip Thompson ,  Wayne W Hazen ,  Christel M. A. Bemelmans

    IPC分类号： C25C1/12

    CPC分类号： C25C1/12 ,  C22B15/0071 ,  C22B15/0084 ,  C25C7/06 ,  Y02P10/236

    摘要： A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction techniques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in multiple electrowinning stages, without subjecting the copper-containing solution to solvent/solution extraction prior to electrowinning.

    摘要翻译： 一种用于从含铜矿石，浓缩物或其它含铜材料中回收铜的系统和方法，以从浸出溶液中生产高质量的阴极铜，而不使用铜溶剂/溶液萃取技术或装置。 从含铜矿石中回收铜的方法通常包括提供含有粉碎的含铜矿石，浓缩物或其它含铜材料的进料流的步骤，浸提进料流以产生含铜溶液，调理 通过一个或多个物理或化学调节步骤的含铜溶液，以及在多个电解提取阶段直接从含铜溶液中电解提取铜，而在电解提取之前不对含铜溶液进行溶剂/溶液萃取。

    Process for multiple stage direct electrowinning of copper
    5.
    发明授权
    Process for multiple stage direct electrowinning of copper 有权
    铜的多级直接电解冶金工艺

    公开(公告)号：US08012318B2

    公开(公告)日：2011-09-06

    申请号：US12769884

    申请日：2010-04-29

    申请人： John O Marsden ,  Robert E Brewer ,  Susan R Brewer ,  Joanna M Robertson ,  David R Baughman ,  Philip Thompson ,  Wayne W Hazen ,  Christel M. A. Bemelmans

    发明人： John O Marsden ,  Robert E Brewer ,  Susan R Brewer ,  Joanna M Robertson ,  David R Baughman ,  Philip Thompson ,  Wayne W Hazen ,  Christel M. A. Bemelmans

    IPC分类号： C25B15/08

    CPC分类号： C25C1/12 ,  C22B15/0071 ,  C22B15/0084 ,  C25C7/06 ,  Y02P10/236

    摘要： A system and process for recovering copper from a copper-containing ore, concentrate, or other copper-bearing material to produce high quality cathode copper from a leach solution without the use of copper solvent/solution extraction techniques or apparatus. A process for recovering copper from a copper-containing ore generally includes the steps of providing a feed stream containing comminuted copper-containing ore, concentrate, or other copper-bearing material, leaching the feed stream to yield a copper-containing solution, conditioning the copper-containing solution through one or more physical or chemical conditioning steps, and electrowinning copper directly from the copper-containing solution in multiple electrowinning stages, without subjecting the copper-containing solution to solvent/solution extraction prior to electrowinning.

    摘要翻译： 一种用于从含铜矿石，浓缩物或其它含铜材料中回收铜的系统和方法，以从浸出溶液中生产高质量的阴极铜，而不使用铜溶剂/溶液萃取技术或装置。 从含铜矿石中回收铜的方法通常包括提供含有粉碎的含铜矿石，浓缩物或其它含铜材料的进料流的步骤，浸提进料流以产生含铜溶液，调理 通过一个或多个物理或化学调节步骤的含铜溶液，以及在多个电解提取阶段直接从含铜溶液中电解提取铜，而在电解提取之前不对含铜溶液进行溶剂/溶液萃取。

    System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials
    6.
    发明授权
    System and method including multi-circuit solution extraction for recovery of metal values from metal-bearing materials 有权
    包括从金属轴承材料回收金属值的多回路溶液提取的系统和方法

    公开(公告)号：US09169533B2

    公开(公告)日：2015-10-27

    申请号：US13331717

    申请日：2011-12-20

    申请人： Jason M Morgan ,  Barbara J Savage ,  David G Meadows ,  Wayne W Hazen

    发明人： Jason M Morgan ,  Barbara J Savage ,  David G Meadows ,  Wayne W Hazen

    IPC分类号： C22B15/00 ,  C22B3/26 ,  B01D11/02 ,  B01D11/04

    CPC分类号： C22B3/02 ,  B01D11/028 ,  B01D11/0488 ,  C22B3/0005 ,  C22B3/20 ,  C22B3/44 ,  C25C7/00 ,  Y02P10/234

    摘要： The present disclosure relates to a metal recovery process comprising a solvent extraction process. In an exemplary embodiment, the solution extraction system comprises a plant with a first and second circuit. A high-grade pregnant leach solution (“HGPLS”) is provided to the first and second circuit, and a low-grade pregnant leach solution (“LGPLS”) is provided to the second circuit. The first circuit produces a rich electrolyte, which can be forwarded to a primary metal recovery, and a low-grade raffinate, which can be forwarded to a secondary metal recovery process. The second circuit produces a rich electrolyte, which can also be forwarded to the primary metal recovery process. The first and second circuits are in fluid communication with each other.

    摘要翻译： 本发明涉及包含溶剂萃取方法的金属回收方法。 在示例性实施例中，溶液提取系统包括具有第一和第二回路的设备。 向第一和第二回路提供高品位的浸出液（“HGPLS”），并向第二回路提供低等级的浸出液（“LGPLS”）。 第一个电路产生富电解质，可以将其转化为初级金属回收，还可以将低级提余液转入二次金属回收工艺。 第二电路产生富电解质，其也可以转发到初级金属回收过程。 第一和第二回路彼此流体连通。