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Phosphate rock bioleaching

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Summary

Microbiological acid solutions produced byThiobacillus ferrooxidans andThiobacillus thiooxidans on pyritiferous concentrate were used to solubilize phosphate rock with a high grade in P2O5. Five different mixtures of pyritiferous concentrate and phosphate rock, in different proportions, were used in adequate liquid culture media. Phosphate solubilization ranged from 12% to 100% when 9K nutrients medium was used and from 12% to 89% when medium contained only 3.0g/l ammonium sulphate.

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Authors and Affiliations

  1. Centro de Tecnologia Mineral-CETEM/CNPq, Cidade Universitária, Rua 4, Quadra D, 21949, Rio de Janeiro, RJ, Brasil

    A. C. A. Costa

  2. Escola de Química. Dept. de Eng. Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil

    R. A. Medronho & R. P. Pecanha

Authors
  1. A. C. A. Costa
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  2. R. A. Medronho
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  3. R. P. Pecanha
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Costa, A.C.A., Medronho, R.A. & Pecanha, R.P. Phosphate rock bioleaching. Biotechnol Lett 14, 233–238 (1992). https://doi.org/10.1007/BF01023365

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  • DOI: https://doi.org/10.1007/BF01023365

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