Synergistic Extraction1

Chinese Journal of Applied Chemistry ›› 2009, Vol. 26 ›› Issue (11): 1353-1356.

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Synergistic Extraction1

SUN Ying¹, LI Yan-Ling², QUAN Xin-Jun¹, LIAO Wu-Ping^2*

(1.College of Chemistry,Jilin University，Changchun 130012;
2.State Key Laboratory of RE Resource Utilization,Changchun Institute of
Applied Chemistry,Chinese Academy of Sciences,Changchun 130022)

Received:2008-11-14 Revised:2009-01-07 Published:2009-11-10 Online:2009-11-10

Abstract

Abstract:

Synergistic effect in the extraction of molybdenum by the mixed extractants of di-2-ethylhexyl phosphoric acid (P204) and trialkylamine N235 has been investigated. The results reveal that the mixed system shows an obvious enhancement on the extraction of molybdenum with the mole fraction of N235 being of about 0.7. The effect of the aqueous acidity, the concentration of P204 or N235 and temperature on the extraction of molybdenum was further studied. The reaction mechanism was deduced and the extracted species was decided to be (R3NH)3•HMo8O26•2(HA). FT-IR spectra of the mixed extractants and the loaded organic phase were examined.

Key words: synergistic extraction, molybdenum, trialkylamin, di-2-ethylhexyl phosphoric acid

CLC Number:

O611

SUN Ying1, LI Yan-Ling2, QUAN Xin-Jun1, LIAO Wu-Ping2*. Synergistic Extraction1[J]. Chinese Journal of Applied Chemistry, 2009, 26(11): 1353-1356.

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