应用化学 ›› 1996, Vol. 0 ›› Issue (1): 101-103.

• 研究简报 • 上一篇    下一篇

2-乙基己基膦酸单(2-乙基己基)酯从盐酸溶液中萃取Ga(Ⅲ)的机理

赵经贵, 邢美君, 刘宏   

  1. 黑龙江大学化学系 哈尔滨 150080
  • 收稿日期:1995-06-12 修回日期:1995-09-25 出版日期:1996-02-10 发布日期:1996-02-10

Extraction Mechanism of Ga3+ with Mono(2-Ethylhexyl)2-Ethylhexyl Phosphonate(P507) from Hydrochloric Acid solution

Zhao Jinggui, Xing Meijun, Liu Hong   

  1. Department of Chemistry, Heilongjiang University, Harbin 150080
  • Received:1995-06-12 Revised:1995-09-25 Published:1996-02-10 Online:1996-02-10

摘要: 2-乙基己基麟酸单(2一乙基己基)酯(P507, EHP)在稀有元素、有色金属萃取分离方面已得到广泛应用,但是关于萃取分离稀散元素[1,2],以及萃取机理[3,4]的报道不多.

关键词: 溶剂萃取, 镓, 乙基己基膦酸单(乙基己基)酯

Abstract: The extraction mechanism of Ga3+ from hydrochloric acid solution with momo(2-ethylhexyl)2-ethylhexyl phosphonate has been investigated. Results show that the extraction reaction is Ga3++2H2A2(o)=GaA3HA(o)+3H-+ΔH0=-11.009 kJ/mol,ΔG0=9.384~11.136 kJ/mol,-ΔS0=68.43~68.74 J/mol.

Key words: solvent extraction, Ga3+, mono-ethylhexylethylhexyl phosphonate