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.
KeywordsPhosphate Sulphate Ammonium Organic Chemistry Acid Solution
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- 1.Kelly, D.P., Ann. Rev. Microbiol.25, 177 (1971).Google Scholar
- 2.Brierley, C., Pour la Science,60, 38 (1982)Google Scholar
- 3.Harrison Jr., A.P., Ann. Rev. Microbiol.,38, 265 (1984)Google Scholar
- 4.Hutchins, S.R. and Davidson, M.S., Ann. Rev. Microbiol.,40, 311 (1986)Google Scholar
- 5.Mahapatra, S.S.R. and Mishra, A.K., Current Science,54, 235 (1985)Google Scholar
- 6.Silverman, M.P. and Lundgren, D.G., J. Bacteriol.,77, 326 (1959)Google Scholar
- 7.Scott, W.W., Standard Methods of Chemical Analysis, Volume I—The Elements, D. Van Nostrand Company, Inc. New York, 1938.Google Scholar