Conference Proceedings
Australia/Japan Extractive Metallurgy Symposium, Sydney
Conference Proceedings
Australia/Japan Extractive Metallurgy Symposium, Sydney
Removal of Bismuth from Copper by Vacuum Refining
The removal of bismuth from liquid copper in a vacuum furnace was studied over a range of pressures. The rate determining step changes from diffusion in the gas at pressures above 0.2 Torr to approach the Langmuir evaporation rate at pressures of 10-2 Torr. Oxygen and sulphur were found to have a negligible effect on the rate. Bismuth removal from copper sulphide was found to be considerably slower than from copper._x000D_
This is consistent with the known thermodynamic properties of ternary sulphide melts.
This is consistent with the known thermodynamic properties of ternary sulphide melts.
Contributor(s):
R Bryan, D M Pollard, G M Willis
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- Published: 1980
- PDF Size: 0.561 Mb.
- Unique ID: P198002028