BIOLEACHING OF COPPER FROM CARAIBA MINE ORE (BRAZIL) | Zendy

L. A. Bernardez | Zendy; Luiz Rogério Pinho de Andrade Lima | Zendy; Luis Eduardo L. de Oliveira | Zendy

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BIOLEACHING OF COPPER FROM CARAIBA MINE ORE (BRAZIL)

Author(s) -

L. A. Bernardez,

Luiz Rogério Pinho de Andrade Lima,

Luis Eduardo L. de Oliveira

Publication year - 2019

Publication title -

latin american applied research - an international journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.123

H-Index - 23

eISSN - 1851-8796

pISSN - 0327-0793

DOI - 10.52292/j.laar.2019.281

Subject(s) - bioleaching , tailings , copper , copper ore , sulfide , metallurgy , laboratory flask , copper mine , leaching (pedology) , copper extraction techniques , acid mine drainage , microorganism , chemistry , environmental science , geology , materials science , bacteria , paleontology , soil science , soil water

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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