Recovery of manganese from mixed metal solutions by solvent extraction with organophosphorus acid extractants

Pakarinen Jouni T., Paatero Erkki Y.O.

Аннотация


The di(2-ethylhexyl) phosphoric acid (D2EHPA) and bis(2,4,4-trimethylpentyl) phosphinic acid (Cyanex 272 by Cytec, USA) were used to extract manganese from sulfuric acid solutions containing Co, Mg, Ca and Na. Cyanex 272 was found to be slightly more selective for manganese than D2EHPA. Furthermore, it was found that a temperature increase has a negative effect on the Mn selectivity.


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Литература


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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