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Acid-bacterial leaching of pyrite single crystal

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DOI: 10.1016/s1572-4409(99)80011-x


To clarify the role of crystallographic orientation of the ore on the reaction mechanism of bacterial oxidation, single crystals of pyrite were oxidized by using Thiobacillus ferrooxidans and representative plane orientations of (100) and (111) of pyrite were adopted for this purpose. According to SEM and AFM characterization, the surface corrosion associated with microbial oxidation seems different between (100) and (111) planes.

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