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18 条记录 (耗时 0.026 秒)

    Method for recovering precious metals and copper from leach solutions
    1.
    发明授权
    Method for recovering precious metals and copper from leach solutions 有权
    从浸出液中回收贵金属和铜的方法

    公开(公告)号：US09051625B2

    公开(公告)日：2015-06-09

    申请号：US13524907

    申请日：2012-06-15

    申请人： Yeonuk Choi ,  Qiankun Wang ,  John William Langhans, Jr.

    发明人： Yeonuk Choi ,  Qiankun Wang ,  John William Langhans, Jr.

    IPC分类号： C22B11/00 ,  C22B3/42 ,  C22B3/00

    CPC分类号： C22B11/04 ,  C22B3/42 ,  Y02P10/234

    摘要： The present disclosure is directed to a process for recovering a precious metal from a pregnant leach solution using a resin extractant. The precious metal is eluted from the loaded resin using an eluant comprising trithionate. The barren resin is contacted with a sulfide, bisulfide, and/or polysulfide to convert sorbed trithionate to thiosulfate. The desorbed thiosulfate is contacted with an oxidant and converted to trithionate for eluant recycle.

    摘要翻译： 本公开涉及使用树脂萃取剂从怀孕浸出溶液中回收贵金属的方法。 使用包含三硫酸盐的洗脱剂从负载的树脂中洗脱贵金属。 贫硫树脂与硫化物，二硫化物和/或多硫化物接触以将吸附的三硫酸盐转化为硫代硫酸盐。 将脱硫的硫代硫酸盐与氧化剂接触，并转化成三硫代乙酸盐用于洗脱剂再循环。

    METHOD FOR RECOVERING PRECIOUS METALS AND COPPER FROM LEACH SOLUTIONS
    2.
    发明申请
    METHOD FOR RECOVERING PRECIOUS METALS AND COPPER FROM LEACH SOLUTIONS 有权
    从LEACH解决方案中回收重金属和铜的方法

    公开(公告)号：US20130091990A1

    公开(公告)日：2013-04-18

    申请号：US13524907

    申请日：2012-06-15

    申请人： Yeonuk Choi ,  Qiankun Wang ,  John William Langhans, JR.

    发明人： Yeonuk Choi ,  Qiankun Wang ,  John William Langhans, JR.

    IPC分类号： C22B3/00

    CPC分类号： C22B11/04 ,  C22B3/42 ,  Y02P10/234

    摘要： The present disclosure is directed to a process for recovering a precious metal from a pregnant leach solution using a resin extractant. The precious metal is eluted from the loaded resin using an eluant comprising trithionate. The barren resin is contacted with a sulfide, bisulfide, and/or polysulfide to convert sorbed trithionate to thiosulfate. The desorbed thiosulfate is contacted with an oxidant and converted to trithionate for eluant recycle.

    摘要翻译： 本公开涉及使用树脂萃取剂从怀孕浸出溶液中回收贵金属的方法。 使用包含三硫酸盐的洗脱剂从负载的树脂中洗脱贵金属。 贫硫树脂与硫化物，二硫化物和/或多硫化物接触以将吸附的三硫酸盐转化为硫代硫酸盐。 将脱硫的硫代硫酸盐与氧化剂接触，并转化成三硫代乙酸盐用于洗脱剂再循环。

    Production of zinc oxide from acid soluble ore using precipitation method
    5.
    发明授权
    Production of zinc oxide from acid soluble ore using precipitation method 失效
    使用沉淀法从酸溶性矿石生产氧化锌

    公开(公告)号：US06726889B2

    公开(公告)日：2004-04-27

    申请号：US10199512

    申请日：2002-07-22

    申请人： Yeonuk Choi ,  Serge Payant ,  Joo Kim ,  Anna-Maria Giove ,  Ramachandra Rao ,  James Andrew Finch

    发明人： Yeonuk Choi ,  Serge Payant ,  Joo Kim ,  Anna-Maria Giove ,  Ramachandra Rao ,  James Andrew Finch

    IPC分类号： C22B1900

    CPC分类号： C22B19/26 ,  C01G9/02 ,  C22B3/46 ,  C22B19/34 ,  Y02P10/234

    摘要： The present invention relates to an apparatus and a process for producing zinc oxide from an acid soluble zinc-bearing material. The process according to the present invention comprises the steps of leaching the zinc oxide material with sulphuric acid; precipitating iron and silica from the leach solution using calcium oxide; removing copper, cadmium and cobalt from the leach solution by cementation with zinc dust; precipitating zinc oxide from the leach solution using calcium oxide; and upgrading zinc content in zinc oxide precipitates by separating zinc oxide from gypsum using a flotation or granulometric sizing technique.

    摘要翻译： 本发明涉及一种由酸溶性含锌材料制备氧化锌的设备和方法。 根据本发明的方法包括用硫酸浸出氧化锌材料的步骤; 使用氧化钙从浸出溶液中沉淀铁和二氧化硅; 通过与锌粉粘结从浸出溶液中去除铜，镉和钴; 使用氧化钙从浸出溶液中沉淀氧化锌; 并通过使用浮选或粒度测定技术从石膏中分离氧化锌，提高氧化锌沉淀中的锌含量。

    PRODUCTION OF ZINC SULPHATE CONCENTRATES FROM A DILUTE ZINC SULPHATE SOLUTION
    8.
    发明申请
    PRODUCTION OF ZINC SULPHATE CONCENTRATES FROM A DILUTE ZINC SULPHATE SOLUTION 有权
    从二硫化锌溶液中生产锌盐酸盐浓度

    公开(公告)号：US20110165059A1

    公开(公告)日：2011-07-07

    申请号：US12986898

    申请日：2011-01-07

    申请人： Yeonuk Choi

    发明人： Yeonuk Choi

    IPC分类号： C01G9/06 ,  C01F11/46

    CPC分类号： C01F11/46 ,  C01G9/02 ,  C01G9/06

    摘要： In an embodiment, the present invention relates to an apparatus and a process for producing a concentrated form of basic zinc sulphate from a, typically dilute, acidic zinc sulphate-bearing solution. The process embodiment comprises the steps of precipitating the zinc, preferably primarily as basic zinc sulphate, from the acidic zinc sulphate solution, preferably using calcium oxide, in such a way as to promote the formation of separate gypsum crystals and basic zinc sulphate particles, and upgrading the zinc content in the precipitates by separating the basic zinc sulphate from the gypsum using size separation techniques.

    摘要翻译： 在一个实施方案中，本发明涉及从通常为稀酸性的含硫酸锌的溶液中生产浓缩形式的碱式硫酸锌的装置和方法。 该方法的实施方案包括如下步骤：将锌，优选主要作为碱性硫酸锌从酸性硫酸锌溶液中沉淀出来，优选使用氧化钙，以促进单独的石膏晶体和碱性硫酸锌颗粒的形成，以及 通过使用尺寸分离技术从石膏中分离碱性硫酸锌来提高沉淀物中的锌含量。