发明名称 |
PRESSURE LEACHING PROCESS FOR ZINC RECOVERY FROM SULPHIDIC ORE MATERIALS |
摘要 |
<p>A processs for the recovery of zinc from a zinc sulphide ore or concentrate comprises the steps of subjecting the concentrate to pressure leaching with an acidic solution containing at least about 15 g/L iron in solution to produce a zinc solution and a solid leach residue containing iron. The zinc solution is subjected to zinc solvent extraction to produce a raffinate and a pregnant zinc solution. A method of removing ion from an iron bearing raffinate is also provided which comprises pressure leaching a zinc sulphide ore with the iron bearing raffinate to produce a solid leach residue containing iron and a zinc solution.</p> |
申请公布号 |
EP1325164(A2) |
申请公布日期 |
2003.07.09 |
申请号 |
EP20010966924 |
申请日期 |
2001.09.11 |
申请人 |
COMINCO ENGINEERING SERVICES LTD. |
发明人 |
JONES, DAVID, L. |
分类号 |
C22B19/30;C22B3/04;C22B3/08;C22B3/26;C22B3/44;C22B19/00;C22B19/20;(IPC1-7):C22B3/08 |
主分类号 |
C22B19/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|