What question did this study set out to answer?

To optimize the operational variables governing microbiological oxidation of sulphide minerals and evaluate the technical and economic feasibility of a continuous concentrate leaching system.

January 1, 1971Canadian Metallurgical Quarterly

Microbiological leaching of sulphide concentrates

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Authors

ABA. BruynesteynTRIUMF DDD. W. DuncanLighthouse Guild

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Implication

Experimental study demonstrates rapid copper and zinc extraction rates from sulphide concentrates, suggesting the feasibility of low-cost continuous bioleaching systems.

Key Points

To optimize the operational variables governing microbiological oxidation of sulphide minerals and evaluate the technical and economic feasibility of a continuous concentrate leaching system.
Optimized variables influencing microbial oxidation of copper and zinc sulphide minerals in laboratory experiments.
Conducted batch tank confirmation tests to measure soluble metal extraction and developed engineering parameters for a continuous leaching process.
Laboratory optimization yielded maximum extraction rates of 725 mg/l/hr for copper and 1300 mg/l/hr for zinc.
Batch tank tests confirmed soluble metal concentrations reaching 25 g/l for copper and 98 g/l for zinc.
Process design supported a continuous leaching system with a 48 to 72 hour retention time, with estimated production costs ranging from 2.9 to 4.6 cents per pound of copper produced.

Cite This Study

Bruynesteyn et al. (1971) studied this question.

synapsesocial.com/papers/6a7e21bb98f1ee41ab2569a0 https://doi.org/10.1179/cmq.1971.10.1.57

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Implication

Experimental study demonstrates rapid copper and zinc extraction rates from sulphide concentrates, suggesting the feasibility of low-cost continuous bioleaching systems.

Microbiological leaching of sulphide concentrates

Discussion

Member takes

Implication

Key Points

Cite This Study

Microbiological leaching of sulphide concentrates

Discussion

Member takes

Implication

Key Points

Cite This Study

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