Recovery of manganese from mixed metal solutions by solvent extraction with organophosphorus acid extractants
About authors
- 1 — Lappeenranta University of Technology
- 2 — Lappeenranta University of Technology
Abstract
Di(2-ethylhexyl) phosphoric acid (D2EHPA) and bis(2,4,4-trimethylpentyl) phosphinic acid (Cyanex272 manufactured by Cytec, USA) were used to extract manganese from sulfuric acid solutions containing Co, Mg, Ca and Na. Cyanex272 was found to have slightly higher selectivity towards manganese than D2EHPA. In addition, it was found that an increase in temperature had a negative effect on the selectivity for Mn.
References
- Flett, D.S., West, D.W. Improved Solvent Extraction Process for Cobalt-Nickel Separation in Sulphate Solutions by Use of Di(2-Ethylhexyl) // Phosphoric Acid. Complex Metallurgy. 1978. Vol.78. P.49-57.
- Preston, J.S. Solvent Extraction of Cobalt and Nickel by Organophosphorus // Acids I. Comparison of Phosphoric, Phosphonic and Phosphinic Acid Systems, Hydrometallurgy. 1982. Vol.9. P.115-133.
- Cheng, C.Y. Purification of Synthetic Laterite Leach Solution by Solvent Extraction Using D2EHPA // Hydrometallurgy. 2000. Vol.56. P.369-386.
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