Comparison of the oxidation kinetics of different pyrites in the presence of Thiobacillus ferrooxidans or Leptospirillum ferrooxidans

M. Boon; H. J. Brasser; G. S. Hansford; Joseph J. Heijnen

doi:10.1016/S0304-386X(99)00037-7

Comparison of the oxidation kinetics of different pyrites in the presence of Thiobacillus ferrooxidans or Leptospirillum ferrooxidans

M. Boon^*, H. J. Brasser, G. S. Hansford, Joseph J. Heijnen

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

63 Citations (Scopus)

Abstract

Bioleaching studies were carried out to determine the effect of both the chemical reactivity of the pyrite as well as the affinity of a bacterial strain to the ferrous to ferrite iron ratio, on the overall bacterial oxidation rate of a pyrite. Pure culture of Thiobacillus ferrooxidants and an enrichment culture of Leptospirillum bacteria on a framboidal pyrite from Germany and a euhedral pyrite from Prieska, South Africa were used. The results are discussed in terms of the relative affinities of T. ferrooxidants and the Leptospirillum bacteria for the ferrous/ferric-ion ratio, and susceptibility of the two types of pyrite to ferric leaching.

Original language	English
Pages (from-to)	57-72
Number of pages	16
Journal	Hydrometallurgy
Volume	53
Issue number	1
DOIs	https://doi.org/10.1016/S0304-386X(99)00037-7
Publication status	Published - 1999
Externally published	Yes

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title = "Comparison of the oxidation kinetics of different pyrites in the presence of Thiobacillus ferrooxidans or Leptospirillum ferrooxidans",

abstract = "Bioleaching studies were carried out to determine the effect of both the chemical reactivity of the pyrite as well as the affinity of a bacterial strain to the ferrous to ferrite iron ratio, on the overall bacterial oxidation rate of a pyrite. Pure culture of Thiobacillus ferrooxidants and an enrichment culture of Leptospirillum bacteria on a framboidal pyrite from Germany and a euhedral pyrite from Prieska, South Africa were used. The results are discussed in terms of the relative affinities of T. ferrooxidants and the Leptospirillum bacteria for the ferrous/ferric-ion ratio, and susceptibility of the two types of pyrite to ferric leaching.",

author = "M. Boon and Brasser, {H. J.} and Hansford, {G. S.} and Heijnen, {Joseph J.}",

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T1 - Comparison of the oxidation kinetics of different pyrites in the presence of Thiobacillus ferrooxidans or Leptospirillum ferrooxidans

AU - Boon, M.

AU - Brasser, H. J.

AU - Hansford, G. S.

AU - Heijnen, Joseph J.

PY - 1999

Y1 - 1999

N2 - Bioleaching studies were carried out to determine the effect of both the chemical reactivity of the pyrite as well as the affinity of a bacterial strain to the ferrous to ferrite iron ratio, on the overall bacterial oxidation rate of a pyrite. Pure culture of Thiobacillus ferrooxidants and an enrichment culture of Leptospirillum bacteria on a framboidal pyrite from Germany and a euhedral pyrite from Prieska, South Africa were used. The results are discussed in terms of the relative affinities of T. ferrooxidants and the Leptospirillum bacteria for the ferrous/ferric-ion ratio, and susceptibility of the two types of pyrite to ferric leaching.

AB - Bioleaching studies were carried out to determine the effect of both the chemical reactivity of the pyrite as well as the affinity of a bacterial strain to the ferrous to ferrite iron ratio, on the overall bacterial oxidation rate of a pyrite. Pure culture of Thiobacillus ferrooxidants and an enrichment culture of Leptospirillum bacteria on a framboidal pyrite from Germany and a euhedral pyrite from Prieska, South Africa were used. The results are discussed in terms of the relative affinities of T. ferrooxidants and the Leptospirillum bacteria for the ferrous/ferric-ion ratio, and susceptibility of the two types of pyrite to ferric leaching.

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DO - 10.1016/S0304-386X(99)00037-7

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AN - SCOPUS:0032658490

SN - 0304-386X

VL - 53

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JO - Hydrometallurgy

JF - Hydrometallurgy

IS - 1

ER -

Comparison of the oxidation kinetics of different pyrites in the presence of Thiobacillus ferrooxidans or Leptospirillum ferrooxidans

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