Biooxidation of a Pyrite-Arsenopyrite Concentrate Under Stressful Conditions.

ABSTRACT: Gold recovery from refractory pyrite-arsenopyrite concentrates using stirred tank reactor biooxidation is widely applied worldwide. Therefore, studies to address the characteristic problem of this technology are urgent. The goal of the present work was to research the possibility of counteracting the negative effects of unfavorable conditions (increasing pulp density and temperature) on the biooxidation of pyrite-arsenopyrite concentrate in laboratory-scale stirred tank reactors using additional carbon supply in the form of CO₂. A refractory concentrate containing pyrite (48%) and arsenopyrite (13%) was used in biooxidation experiments. In the control experiment, biooxidation was performed under "normal conditions": temperature 40 °C, pulp density (solid to liquid ratio, S:L) 1:

SUBMITTER: Bulaev A 

PROVIDER: S-EPMC11678047 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature