Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
권호 표지

The Activity Coefficients of Tri-n-butylphosphate and Europium Complex in the Extraction of Europium by Tri-n-butylphosphate in Nitric Acid Solution

질산유로퓸을 TBP 로 추출할때 TBP와 유로퓸착물의 활동도계수간의 관계

  • 강익균 (경희대학교 문리과대학 화학과)
  • Published : 19740800
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Abstract

A relationship between the activity coefficients of tri-n-butylphosphate(TBP) and europium complex was studied in the extraction of europium by TBP in nitric acid solution. Diluents chosen are cyclohexane, toluene, benzene and chlorobenzene. Concentrations of TBP were varied from 5 to 50 by volume percent and the composition of inorganic layer was kept constant. A method of estimating the solubility parameter of TBP is suggested.

분배계수와 용매의 용해도 파라미터 도표상의 추출포물선을 검토하여 질산산성에서 유로퓸을 TBP로 추출할 때 유로퓸착물과 TBP의 활동도 계수간의 관계를 알 수 있었고 이에 따라 TBP의 용해도 파라미터를 결정하는 가능성을 제시하였다. 용매로서는 cyclohexane, 벤젠, 톨루엔, chlorobenzene을 사용하였고 TBP의 농도를 용적백분율로 5에서 50까지 변화시켰다.

Keywords

References

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