发明名称 |
METHOD FOR RECOVERING GOLD FROM GOLD-CONTAINING MATERIAL AND DEVICE THEREFOR |
摘要 |
<p>PURPOSE: To provide a method of recovering gold from a gold containing material such as a metal plating, a metal lining, a gold-containing ore by adding a metal reducing agent such as iron into an aq. solution, in which gold is eluted as a thiourea compound. CONSTITUTION: Gold is recovered by dipping the gold-containing material <=2g/l in an eluting aq. solution containing 1.5-5.0% ferric ion and 2.0-6.0% thiourea and after stirring and vibrating, adding a metallic body having equal to or above solid-liquid contact area than 2g/l (above aq. solution for elution) powdery metal such as the iron powder as the reducing agent and stirring and vibrating. The metallic body 2 is a thin plate rotating body and provided in the eluting solution so as to be rotatably dipped. As a result, the treating time is reduced to 1/12 to 1/24 of that by a method using a cyan compound and 2/3 of that by a pH adjusting method using an alkali to reduce the treating cost.</p> |
申请公布号 |
JPH0913127(A) |
申请公布日期 |
1997.01.14 |
申请号 |
JP19910098282 |
申请日期 |
1991.04.02 |
申请人 |
KITASAKA MANABU;HIRAMATSU KATSUTO;SAKAHARA TSUKASA |
发明人 |
KITASAKA MANABU;HIRAMATSU KATSUTO;SAKAHARA TSUKASA |
分类号 |
C22B3/04;C22B11/00;(IPC1-7):C22B11/00 |
主分类号 |
C22B3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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