Oxidation of isochemical FeS2 (marcasite-pyrite) by Acidithiobacillus thiooxidans and Acidithiobacillus ferrooxidans


Autoria(s): Garcia, Oswaldo; Bigham, Jerry M.; Tuovinen, I. H.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/01/2007

Resumo

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. (C) 2006 Elsevier Ltd. All rights reserved.

Formato

98-101

Identificador

http://dx.doi.org/10.1016/j.mineng.2006.05.005

Minerals Engineering. Oxford: Pergamon-Elsevier B.V., v. 20, n. 1, p. 98-101, 2007.

0892-6875

http://hdl.handle.net/11449/36239

10.1016/j.mineng.2006.05.005

WOS:000243567000012

Idioma(s)

eng

Publicador

Elsevier B.V.

Relação

Minerals Engineering

Direitos

closedAccess

Palavras-Chave #Acidithiobacillus #bioleaching #marcasite #pyrite
Tipo

info:eu-repo/semantics/article