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Citation: LIAO Wu-Ping, JIA Qiong, LI De-Qian, ZHAO Chang. Formation and Application of the Third Phase in Cyanex 923-H₂SO₄ System[J]. Chinese Journal of Applied Chemistry, ;2003, 20(5): 429-432. shu

Formation and Application of the Third Phase in Cyanex 923-H₂SO₄ System

1.
Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemstry, Chinese Academy of Sciences, Changchun 130022

Corresponding author: LI De-Qian,
Received Date: 9 October 2002
Available Online: 20 January 2003
Fund Project: 国家重大基础研究规划项目(G1998061302) (G1998061302)国家自然科学基金(29771028,29801004)资助项目 (29771028,29801004)

Effects of the organic solvents,concentration of the extractant and temperature on the formation of the third phase in Cyanex 923-H₂SO₄-H₂O system have been investigated.For the linear alkane solvents,the more the carbon number of the alkane,the easier the third phase occurs.The greater the polarizability of the solvent,the more difficult the third phase appears,and it does not even appear.High extractant concentration and high temperature are helpless in the formation of the third phase.The formation of three-phase system could be a favourable opportunity for purification of the extractant.
- Cyanex 923,
- extraction,
- phase formation
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Formation and Application of the Third Phase in Cyanex 923-H₂SO₄ System