PRECIOUS METAL RECOVERY USING THIOCYANATE LIXIVIANT
    1.
    发明申请
    PRECIOUS METAL RECOVERY USING THIOCYANATE LIXIVIANT 审中-公开
    使用噻唑烷基衍生物的极好的金属还原

    公开(公告)号:WO2004092448A3

    公开(公告)日:2005-12-29

    申请号:PCT/US2004009213

    申请日:2004-03-25

    IPC分类号: C22B11/08 C22B15/00

    摘要: Precious metal-containing mineral material is subjected to an acidic thiocyanate leach to dissolve the precious metal as a precious metal-thiocyanate complex. A feed of the thiocyanate leach solution may include a large molar ratio of ferric iron to thiocyanate. Precious metal may be removed from pregnant thiocyanate leach solution, such as by transferring precious metal from precious metal-thiocyanate complex to precious metal-cyanide complex and then loading the precious metal-cyanide complex onto an adsorbent material. Remaining cyanide in the thiocyanate leach solution may be converted to thiocyanate for additional leaching of precious metal.

    摘要翻译: 贵金属矿物材料经受酸性硫氰酸盐浸出以溶解作为贵金属硫氰酸盐络合物的贵金属。 硫氰酸盐浸出溶液的进料可以包括三氧化铁与硫氰酸盐的大摩尔比。 贵金属可以从怀孕的硫氰酸盐浸出溶液中除去,例如将贵金属从贵金属 - 硫氰酸盐络合物转移到贵金属氰化物络合物中,然后将贵金属氰化物配合物装载到吸附剂材料上。 硫氰酸盐浸出溶液中的剩余氰化物可转化为硫氰酸盐,以进一步浸出贵金属。

    PRECIOUS METAL RECOVERY USING THIOCYANATE LIXIVIANT
    4.
    发明申请
    PRECIOUS METAL RECOVERY USING THIOCYANATE LIXIVIANT 审中-公开
    使用噻唑烷基衍生物的极好的金属还原

    公开(公告)号:WO2004092448A2

    公开(公告)日:2004-10-28

    申请号:PCT/US2004/009213

    申请日:2004-03-25

    IPC分类号: C25B

    摘要: Precious metal-containing mineral material is subjected to an acidic thiocyanate leach to dissolve the precious metal as a precious metal-thiocyanate complex. A feed of the thiocyanate leach solution may include a large molar ratio of ferric iron to thiocyanate. Precious metal may be removed from pregnant thiocyanate leach solution, such as by transferring precious metal from precious metal-thiocyanate complex to precious metal-cyanide complex and then loading the precious metal-cyanide complex onto an adsorbent material. Remaining cyanide in the thiocyanate leach solution may be converted to thiocyanate for additional leaching of precious metal.

    摘要翻译: 贵金属矿物材料经受酸性硫氰酸盐浸出以溶解作为贵金属硫氰酸盐络合物的贵金属。 硫氰酸盐浸出溶液的进料可以包括三氧化铁与硫氰酸盐的大摩尔比。 贵金属可以从怀孕的硫氰酸盐浸出溶液中除去,例如将贵金属从贵金属硫氰酸盐络合物转移到贵金属氰化物络合物中,然后将贵金属氰化物配合物装载到吸附剂材料上。 硫氰酸盐浸出溶液中的剩余氰化物可转化为硫氰酸盐,以进一步浸出贵金属。