|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||9th International Symposium on High Temperature Metallurgical Processing
||Irreversibilities in Copper Matte Smelting and Settling
||Paul Mather, Matthew John M. Krane
|On-Site Speaker (Planned)
The transient, nonisothermal behaviors of an IsaSMELT copper smelting furnace and associated settling furnace are modeled. The models estimate the temperature and compositions of the process streams, the separation of the matte from the slag, and the irreversibilities (exergy destructions and losses) of the system. The effects of operating parameters on the exergy lost and destroyed in each operation is evaluated. Oxygen enrichment of the air blow, the ratio of oxygen to concentrate addition, and the concentrate water content and feed rate all have strong effects on the exergy cost of smelting. For the settling process, cycle time and slag tap-hole height have the largest influences on exergy destruction.