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Citation: SUN Ying, LI Yan-Ling, QUAN Xin-Jun, LIAO Wu-Ping. Synergistic Extraction of Molybdenum Using Acid-base Coupling Extractants of Di-2-ethylhexyl Phosphoric Acid(P204) and Trialkylamine N235[J]. Chinese Journal of Applied Chemistry, ;2009, 26(11): 1353-1356. shu

Synergistic Extraction of Molybdenum Using Acid-base Coupling Extractants of Di-2-ethylhexyl Phosphoric Acid(P204) and Trialkylamine N235

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

Corresponding author: LIAO Wu-Ping,
Received Date: 13 November 2008
Available Online: 10 January 2009
Fund Project: 国家自然科学基金(50704029) (50704029)吉林省科技发展计划(20080116)资助项目 (20080116)

Synergistic effect on the extraction of molybdenum by the mixed extractants of di-2-ethylhexyl phosphoric acid(P204) and trialkylamine N235 was investigated.The mixed system showed an obvious enhancement on the extraction of molybdenum with a mole fraction of N235 being about 0.7.The effects of the aqueous acidity,the concentration of P204 or N235 and temperature on the extraction of molybdenum were further studied.The reaction mechanism was deduced and the extracted species was determined to be(R₃NH)₃·HMo₈O₂₆·(HA)₃.FT-IR spectra of the mixed extractants and the loaded organic phase were examined.
- synergistic extraction,
- molybdenum,
- trialkylamin,
- di-ethylhexyl phosphoric acid
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