Recovering selenium from copper refinery slimes
Abstract
The selenium contained within copper refinery slimes may be recovered advantageously by roasting at about 600°C. While roasting in air is inefficient, roasting in a sulfating atmosphere enables practically complete selenium recovery. Based on laboratory tests, a new selenium recovery process was adopted at Outokumpu Copper Refinery. In this process, sulfation is achieved by feeding sulfur dioxide and oxygen into the roasting furnace.
- Publication:
-
JOM - Journal of the Minerals, Metals and Materials Society
- Pub Date:
- July 1989
- DOI:
- 10.1007/BF03220271
- Bibcode:
- 1989JOM....41g..42H