Effect of Phanerochaete chrysosporium on Graphite Degradation during Pre-Treatment of Simulated Gold Preg-Robbing Ore

Qian Liu; Hong Ying Yang; Lin Lin Tong; Li Li Qiao; Jing Peng; Zeng Liang Zhang; Hai Liang Liu

doi:10.4028/www.scientific.net/AMR.1130.169

Paper Titles

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Influence of Oxidation-Reduction Potential on Bio-Oxidation of Olimpiada Flotation Concentrate with High Content of Pyrrhotite
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Effects of Ion Stress on the Oxidation Activity of Acidithiobacillus ferrooxidans
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Effect of Phanerochaete chrysosporium on Graphite Degradation during Pre-Treatment of Simulated Gold Preg-Robbing Ore
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The Relationship between Metabolic Pathways of Bacteria and Pyrrhotite Bioleaching Behavior
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Electrochemical Research on N-Type and P-Type Semiconductor Pyrite
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In Situ Characterization of Relevance of Surface Microstructure and Electrochemical Properties of Chalcopyrite to Adsorption of Acidianus manzaensis
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Factors Affecting the Selection of BIOX^® as the Preferred Technology for the Treatment of a Refractory Gold Concentrate
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1130Effect of Phanerochaete chrysosporium on Graphite...

Effect of Phanerochaete chrysosporium on Graphite Degradation during Pre-Treatment of Simulated Gold Preg-Robbing Ore

Abstract:

Abstract. In this study, the effect of Phanerochaete chrysosporium on graphite was investigated, and graphite was used as a substitute of elemental carbon in carbonaceous gold ores. Under the condition of optimum process, the fungal degradation rate of graphite reached to 13.49%, and the carbon content of graphite was decreased by 5.13%. XRD analysis indicated that Phanerochaete chrysosporium could destroy the crystal structure of graphite. FTIR analysis indicated that Phanerochaete chrysosporium could increase the number of aliphatic structures and oxygen-containing groups. The cyanide leaching gold tests showed that Phanerochaete chrysosporium can decrease the preg-robbing capacity of graphite, about 9.52%. It indicated that Phanerochaete chrysosporium is an available microorganism, which was employed to pre-treat carbonaceous matter in carbonaceous gold ores to reduce the interference of gold cyanidation leaching.

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Periodical:

Advanced Materials Research (Volume 1130)

Pages:

169-174

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1130.169

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Online since:

November 2015

Authors:

Qian Liu, Hong Ying Yang*, Lin Lin Tong, Li Li Qiao, Jing Peng, Zeng Liang Zhang, Hai Liang Liu

Keywords:

Carbonaceous Gold Ores, Degradation, Graphite, Phanerochaete chrysosporium, Preg-Robbing Capacity

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