RECOVERY OF SILVER FROM ORES AND CONCENTRATES.
    4.
    发明公开
    RECOVERY OF SILVER FROM ORES AND CONCENTRATES. 失效
    RECOVERY SILVER FROM矿石和浓缩物。

    公开(公告)号:EP0061468A4

    公开(公告)日:1983-02-16

    申请号:EP81902616

    申请日:1981-09-18

    申请人: DEXTEC METALLURG

    CPC分类号: C22B11/04

    摘要: Silver and/or gold (12) are recovered from ores or concentrates (1) by forming a mixture of the ore or concentrate (1) with electrolyte containing chloride ions (2) and maintaining the mixture at a temperature up to the boiling point of the electrolyte (2) whereby the silver and/or gold (12) is taken into solution (4). The gold and/or silver (12) is precipitated from the solution (4) by contacting the same with a metal having a potential higher than gold or silver in the electrochemical series. If gold is required the pH of the solution is adjusted to greater than 4.