Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9632543 | Hydrometallurgy | 2005 | 10 Pages |
Abstract
The current work shows that the carbonaceous coating had a significant detrimental effect on gold dissolution when gold was pre-ground with the carbonaceous ore. Sulphide coating on gold surfaces appeared to hinder gold dissolution to a lesser extent. The dissolution of gold foils artificially coated with the natural carbonaceous matter extracted from Stawell ore was also substantially retarded. In comparison, graphite had a much lower coating ability on gold. The addition of free carbonaceous matter to pre-ground non-carbonaceous sulphide gold ores did not have much effect on gold cyanidation. However, the carbonaceous matter ground with the non-carbonaceous sulphide ores significantly reduced gold leaching kinetics and recoveries.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
H. Tan, D. Feng, G.C. Lukey, J.S.J. van Deventer,