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Solubility of Phosphate Rocks in citric Acid

Author

Listed:
  • F. G. M. Porto
  • M.C.A. Neto
  • J.R.D. Finzer

Abstract

Taking into account that phosphate rocks can have high solubility regarding the different kinds of solvents used, dissolution of apatite from different places was applied in 2% citric acid solution. Semi analytical, 0,001g resolution scales for quantifying mass were used as well as Stolhman bottles attached to Wagner-like agitator where the extraction was carried out. Also, a digital spectrometer for doing the reading which determines the phosphate grades was used. The results consisted of a minimum value of 0,33% and a maximum of 28,2% of P2O5 varying according to the origin of the milled samples. The result can be useful for the selection of rocks to be processed.

Suggested Citation

  • F. G. M. Porto & M.C.A. Neto & J.R.D. Finzer, 2018. "Solubility of Phosphate Rocks in citric Acid," World Scientific Research, Asian Online Journal Publishing Group, vol. 5(1), pages 32-36.
    • Handle: RePEc:aoj:woscre:v:5:y:2018:i:1:p:32-36:id:763
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