|
| Extraction of Nickel and Cobalt from Laterite Nickel Ore by High Temperature Chlorination Roastingccc |
|
Received:April 19, 2024
Revised:May 28, 2024
Accepted:May 29, 2024
Published Online:November 17, 2024
|
| View Full Text View/Add Comment Download reader |
| DOI：doi：10.3969/j.issn.1007-7545.2024.12.001 |
| KeyWord:chlorination volatilization; laterite nickel ore; limonite |
| Author | Institution |
| LIU Qi |
矿冶科技集团有限公司 |
| MA Hui |
矿冶科技集团有限公司 |
| GUO Chihao |
矿冶科技集团有限公司 |
|
| Hits: 1635 |
| Download times: 1448 |
| Abstract: |
| Nickel is an important strategic rare metal resource, and its high value extraction and utilization is of great significance. The recovery of nickel and cobalt from limonite-type laterite ore was studied by high temperature chlorination roasting, which provides a new idea for extracting and utilizing nickel and cobalt from limonite-type laterite nickel ore with high value. The effects of chlorination temperature, chlorination time, reducing agent, chlorination agent dosage, and silica dosage on the volatilization rate of nickel, cobalt, and iron were investigated. The optimum conditions obtained are as follows: After the raw material was pre-calcined at 900 ℃ for two hours, 36% calcium chloride, 12% silica and 1% coke are added, and chlorination roasting at 1 200 ℃ for two hours. The volatilization rate of nickel, cobalt and iron is 85.87%, 77.26% and 7.05%, respectively. |
| Close |
|
|
|