发明名称 |
A PROCESS FOR THE RECOVERY OF VALUE METALS FROM MATERIAL CONTAINING BASE METAL OXIDES |
摘要 |
<p>A process for leaching a value metal from a lateritic nickel ore containing a first metal comprising at least one of copper, iron, manganese, aluminum, zinc and chromium and a second metal comprising at least one of nickel and cobalt is disclosed. The process comprises the steps of:
(a) contacting the ore with a lixiviant comprising magnesium chloride and hydrochloric acid to produce a value metal-rich leachate and a leaching residue;
(b) separating the value metal-rich leachate from the leaching residue;
(c) increasing the pH of the leachate to obtain a first metal-rich solid fraction and a second metal-rich leachate and separating the first metal-rich solid fraction from the second metal-rich leachate;
(d) increasing the pH of the second metal-rich leachate to obtain a second metal-poor leachate and a second metal-rich solid fraction containing the second metal.</p> |
申请公布号 |
EP1627087(A1) |
申请公布日期 |
2006.02.22 |
申请号 |
EP20040732896 |
申请日期 |
2004.05.14 |
申请人 |
JAGUAR NICKEL INC. |
发明人 |
HARRIS, G. BRYN;LAKSHMANAN, VAIKUNTAM, I.;SRIDHAR, RAMAMRITHAM |
分类号 |
C22B3/00;C22B23/00;(IPC1-7):C22B3/00 |
主分类号 |
C22B3/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|