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The Research of Ferrous Iron-oxidazing Capability of Acidithiobacillus Ferrooxidans and the Efficiency of Low Grade Chalcopyrite Bioleaching

Xueduan Liu

Abstract

Acidithiobacillus ferrooxidans is a kind of bacteria being famous for its capability of bioleaching.In this study,the ferrous iron-oxidazing capability and efficiency of low grade chalcopyrite bioleaching from four Acidithiobacillus ferrooxidans were measured.The results showed that the ferrous iron-oxidazing capability and efficiency of chalcopyrite bioleaching from CMS- Fland F10-ATCCC23270 strain were higher.The analysis of the influence of ferrous iron-oxidazing capability on efficiency of chalcopyrite bioleaching revealed that the strain with the higher ferrous iron-oxidazing capability had higher efficiency of low grade chalcopyrite bioleaching.

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Key concepts: Bioleaching, Chalcopyrite, Ferrous, Acidithiobacillus ferrooxidans, Metallurgy, Chemistry, Acidithiobacillus thiooxidans, Acidithiobacillus