BIOLEACHING OF COPPER FROM CARAIBA MINE ORE (BRAZIL)

Authors

  • L. A. BERNARDEZ
  • L.R. P. DE ANDRADE LIMA
  • L.E. L. DE OLIVEIRA

DOI:

https://doi.org/10.52292/j.laar.2019.281

Keywords:

Copper, Bioleaching, Acidithiobacillus ferrooxidans

Abstract

The bioleaching of copper ore from the Caraiba Mine was assessed. A microorganism, Acidiothiobacillus ferrooxidans, was isolated from samples collected directly in acid mining drainage in a gold mine tailings pound and used in the bioleaching of the copper sulfide ore. This ore is composed mainly of 28% of oxidized species, 43% of secondary sulfides and 24% of primary sulfide. The shaking flasks experiments with the Caraiba ore showed copper chemical leaching of about 37% and copper bioleaching of about 60% within 60 days at low temperature and native microorganism.

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Published

2019-01-31

Issue

Vol. 49 No. 1 (2019): Latin American Applied Research

Section

Applied Chemistry

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