Title of article
Oxidation of isochemical FeS2 (marcasite–pyrite) by Acidithiobacillus thiooxidans and Acidithiobacillus ferrooxidans
Author/Authors
Garcia Jr.، نويسنده , , Oswaldo and Bigham، نويسنده , , Jerry M. and Tuovinen، نويسنده , , Olli H.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
4
From page
98
To page
101
Abstract
A research-grade mineral sample that contained marcasite and pyrite (FeS2) was subjected to the oxidation by Acidithiobacillus ferrooxidans and Acidithiobacillus thiooxidans. Oxidation of FeS2 by A. ferrooxidans produced acid, and the redox potential increased with sulfide dissolution and the oxidation of Fe2+. Jarosite was detected in solids from spent cultures. Preferential oxidation of either mineral was not consistently observed across all treatments. Neither iron sulfide was oxidized by A. thiooxidans.
Keywords
Bioleaching , Pyrite , Acidithiobacillus , Marcasite
Journal title
Minerals Engineering
Serial Year
2007
Journal title
Minerals Engineering
Record number
2274811
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