Effect of Process Water and Leach Temperature on the Leaching Behaviour of New Caledonian Nickel Laterite Ores
- Organization:
- Canadian Institute of Mining, Metallurgy and Petroleum
- Pages:
- 17
- File Size:
- 614 KB
- Publication Date:
- Jan 1, 2004
Abstract
High-pressure acid leaching (HPAL) of nickel laterites has received considerable attention in recent years. High paymetals extraction, good selectivity, and advances in pressure hydrometallurgical technology are some of the reasons for this interest. Falconbridge Limited (Sudbury. Ontario) investigated the HPAL process using both fresh water and seawater for ore processing. The use of seawater resulted in a chloride concentration of 7.8 g/L in the autoclave feed. A test program was developed to study the effect of process water and leach temperature on the leaching behaviour of different ore compositions from the Koniambo deposit in New Caledonia. The work showed that salinity has a major effect on autoclave chemistry. This paper explores the results.
Citation
APA: (2004) Effect of Process Water and Leach Temperature on the Leaching Behaviour of New Caledonian Nickel Laterite Ores
MLA: Effect of Process Water and Leach Temperature on the Leaching Behaviour of New Caledonian Nickel Laterite Ores. Canadian Institute of Mining, Metallurgy and Petroleum, 2004.