发明名称 |
mÉtodo para lixiviamento de ouro. |
摘要 |
<p>The invention relates to a method for the recovery of gold in connection with the hydrometallurgical production of copper from a residue or intermediate product containing sulphur and iron generated in the leaching of copper raw material. The recovery of both copper and gold takes place in a chloride milieu. The gold contained in the residue or intermediate product is leached using bivalent copper and oxygen in copper (II) chloride-sodium chloride solution in the conditions, where the oxidation-reduction potential is a maximum of 650 mV and the pH at least 1. The iron and sulphur contained in the residue remain for the most part undissolved.</p> |
申请公布号 |
BR0309292(B1) |
申请公布日期 |
2013.05.07 |
申请号 |
BR20030309292 |
申请日期 |
2003.04.07 |
申请人 |
|
发明人 |
MATTI HAEMAELAEINEN;OLLI HYVAERINEN |
分类号 |
B01D15/00;C22B3/20;C22B3/04;C22B11/00;C22B11/06;C25C1/20;C25C7/06 |
主分类号 |
B01D15/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|