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| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional de Colombia
2012
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| Online Access: | https://www.redalyc.org/articulo.oa?id=49623221016 |
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Table of Contents:
- BIOLEACHING OF COPPER SULPHIDE FLOTATION CONCENTRATE IN BATCH REACTION SYSTEM USING MESOPHILE AND THERMOPHILE MICROORGANISMS RENATA DE BARROS LIMA SELMA GOMES FERREIRA LEITE GABRIELLA SILVA FRANCISCO PEREIRA LUIS GONZAGA SANTOS SOBRAL ISABELLA CESARIO DE AMARAL Ingeniería copper sulphide Bioleaching chalcopyrite acidophilic microorganism This work aims at optimizing the use of consortiaof mesophile and thermophile microorganisms (moderate and extreme ones) in the leaching process of copper sulphidesflotation concentrate, containing approximately 30% bornite (Cu5FeS4) and 70% chalcopyrite (CuFeS2), for extracting copper.The objective of the bioleaching tests was to evaluate the performance of those microorganisms, varying specific parameters such as: the composition of the leaching solution, the presence of an energy source (ferrous sulphate), and the inoculation of cultures . To ensure optimal conditions for the microorganisms to act, the pH, temperature, and stirring speed were controlled. Finally, from the microbial action and using agricultural fertiliser (N:P:K sources), a copper extraction of more than 85% was achieved. 2012 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49623221016 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.172 Vol.79