Effect of Acidithiobacillus ferrooxidans and Leptospirillum ferrooxidans on preg-robbing of gold by graphite from thiourea leaching solution

Q Li, H Shen, R Xu, Y Zhang, Y Yang, B Xu… - Journal of Cleaner …, 2020 - Elsevier
Carbonaceous matter (CM) is one of the main reasons for the decrease of gold recovery in
refractory gold ores. Bio-pretreatment of carbonaceous gold ores makes the reduction the …

Significance of acid washing after biooxidation of sulfides in sequential biotreatment of double refractory gold ore from the syama mine, mali

Cindy, R Sakai, DM Mendoza, KT Konadu, K Sasaki - Minerals, 2021 - mdpi.com
Environmentally friendly pretreatment of double refractory gold ores (DRGO) to improve gold
recovery without emitting pollutant gas is challenging. Sequential biotreatment, including …

Fungal-transformation of surrogate sulphides and carbonaceous matter in refractory gold ores: Revisited

G Ofori-Sarpong, DK Adjei, RK Amankwah - Ghana Mining Journal, 2017 - ajol.info
In the recovery of gold from refractory gold ores, pretreatment is required to decompose
sulphides and liberate occluded gold before cyanidation, and to deactivate carbonaceous …