MMIJ & EARTH 2017, Sapporo

Presentation information (2017/08/24 Ver.)

Special Session

EARTH

Wed. Sep 27, 2017 1:00 PM - 5:00 PM C309 (Fl.3.,Build. C)

Chairman: Toshihiro Kamegai (JX Nippon Mining & Metals Corporation), Wei Sheng Chen (National Cheng Kung University), Kyoungkeun Yoo (Korea Maritime and Ocean University), Jaeheon Lee (University of Arizona), Mitsuaki Matsuoka (Kansai University)

3:30 PM - 3:45 PM

[2901-14-10] Solvent extraction separation of Mo from hydrochloric acid leaching solution of spent super alloy by Alamine 336

○DAYOUNG KIM1, JONGGWAN AHN1, MINSUK KIM1 (1. Jung Won University)

Chairman:Kyoungkeun Yoo (Korea Maritime and Ocean University), Wei Sheng Chen (National Cheng Kung University)

Keywords:Solvent Extraction , Alamine336, Recovery, Molybdenum, Stripping

Solvent extraction experiments for the separation and recovery of Mo from hydrochloric acid leaching solution of spent super alloy by Alamine 336 were carried out. The effects on the sort and concentration of extractants, pH of aqueous phase, concentration of HCl in aqueous phase and impurities. The artificial solutions of Mo were prepared by dissolving ammonium molybdenite and Alamine304-1, Cyanex272 and D2EHPA were used solvent extractants by distilled kerosene. The extraction percentage of Mo by Alamine336 as cation extractant was higher than the other extractants as Cyanex272 and D2EHPA and the percentage is about 99 %. The extraction percentage of Mo at the range of 0-2 pH were about 99 % but the percentage was shown 0 % in the case of pH 4 by Alamine336 as cation extractant was higher than the other extractants as Cyanex272 and D2EHPA and the percentage is about 99 %. The effect of impurities as Al, Co and V was performed that Re was extracted to 99 % but the other metals were not extracted.

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