A Feasibility Study of Arsenopyrite-Bearing Gold Bioleaching and its Characterization

Sakinah Hasni; Su Xiu Juan; Ma Shao Jian

doi:10.4028/www.scientific.net/AMR.1130.149

Paper Titles

Microbial & Mineralogical Dynamics during Copper Sulfides Bioleaching, the Search for the Missing Link
p.131

Antimicrobial Activity and Hardness of as Cast and as Homogenized Cu-Ti Alloys
p.136

Biofilm Formation of Sulfobacillus thermosulfidooxidans on Pyrite in the Presence of Leptospirillum ferriphilum
p.141

Insight into the Sulfur Metabolism by Thermoacidophilic Archaeon Metallosphaera cuprina with Genomic, Proteomic and Biochemical Tools
p.145

A Feasibility Study of Arsenopyrite-Bearing Gold Bioleaching and its Characterization
p.149

Biofilm Formation and Extracellular Polymeric Substances (EPS) Analysis by New Isolates of Leptospirillum, Acidithiobacillus and Sulfobacillus from Armenia
p.153

High Copper Tolerant P. lilacinum Strain Isolated from a Rich Environment in Copper, Río Tinto (Sw, Spain)
p.157

Influence of Oxidation-Reduction Potential on Bio-Oxidation of Olimpiada Flotation Concentrate with High Content of Pyrrhotite
p.161

Effects of Ion Stress on the Oxidation Activity of Acidithiobacillus ferrooxidans
p.165

HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1130A Feasibility Study of Arsenopyrite-Bearing Gold...

A Feasibility Study of Arsenopyrite-Bearing Gold Bioleaching and its Characterization

Abstract:

Gold concentrates are mainly composed of arsenopyrite and pyrite. Leptospirillum ferriphilum has been found to be a dominant iron-oxidizing bacterium in the biooxidation of arsenopyrite-bearing gold concentrates. The present study demonstrated the capability of the bacterium Leptospirillum ferriphilum in oxidizing arsenopyrite within 6 days as evidenced by X-ray diffraction (XRD) analyses.