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Citation: Sun Jing, Zheng Zhong, Li Deqian, Ye Weizhen. Synergisitic Extraction of Rare Earth(Ⅲ) by PT-2 and HPMBP[J]. Chinese Journal of Applied Chemistry, ;1995, 12(3): 64-66. shu

Synergisitic Extraction of Rare Earth(Ⅲ) by PT-2 and HPMBP

1.
Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Acadelny of Sciences, Changchun 130022;
2.
Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai

Received Date: 30 November 1994
Revised Date: 12 January 1995

The synergistic extraction of rare earth(Ⅲ) including La, Nd,Y,Gd,Yb from aqueous mineral acid solution (H₂SO₄,HCl, HNO₃) by isopropyl phosphonic acid mono(1-hexyl-4-ethyl) octyl ester (PT-2, HL) with 1-phenyl-3-methyl-4-benzoyl-pyrazolone-5 (HPMBP, HA) in benzeiie has been investigated. The compositions of the synergistic ex-tracted complexes and the equilibrium constants were determined and calculated respectively. The relationship between structures of the extractants and synergistic effects has been discussed. The mechanism of the synergistic extraction has been discussed also.
- isopropyl phosphonic acid mono(hexyl-ethyl)octyl ester,
- phenyl methyl benzoyl pyrazolone,
- rare earth(Ⅲ),
- synergistic extraction
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