Reaction chemistry of gold leaching in thiourea solution for a Turkish gold ore
2002; Elsevier BV; Volume: 67; Issue: 1-3 Linguagem: Inglês
10.1016/s0304-386x(02)00136-6
ISSN1879-1158
Autores Tópico(s)Mineral Processing and Grinding
ResumoThis study was carried out on a finely disseminated gold-bearing ore from Kaymaz, Turkey. The main objective was to determine the mechanism of reaction between thiourea and Fe3+ in the thiourea leaching of gold. Thiourea consumption levels were also examined during the leaching operations for different leaching parameters, i.e., molar ratio of ferric sulfate/thiourea, pH, and temperature. The leaching using the thiourea process was compared with cyanidation. In optimum leach conditions, 85.8% gold extraction was obtained with feed of −53 μm particle size in 6 h.
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