| 发明名称 |
Process for the recovery of elemental sulphur from residues produced in hydrometallurgical processes |
| 摘要 |
The present invention relates to a process for the recovery of elemental sulphur from residues produced in hydrometallurgical processes based on leaching with a solution of sodium sulphide in which the sulphur contained in the residues is selectively leached as sodium polysulphide. The sulphur leaching solution is conveniently regenerated and recycled to the process.
|
| 申请公布号 |
US7604785(B2) |
申请公布日期 |
2009.10.20 |
| 申请号 |
US20070805181 |
申请日期 |
2007.05.22 |
| 申请人 |
ENGITEC TECHNOLOGIES S.P.A. |
发明人 |
OLPER MARCO;MACCAGNI MASSIMO;COSSALI SILVANO |
| 分类号 |
C01B17/02;C01B17/06 |
主分类号 |
C01B17/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
