Original scientific paper

Exraction and separation of CERIUM(IV)/FLUORINE in fluoride-bearing cerium sulfate solution with fluoride coordination agent

Y. Li ; School of Material and Metallurgy, Northeastern University, Shenyang, Liaoning, China
J. G. He ; School of Material and Metallurgy, Northeastern University, Shenyang, Liaoning, China
X. X. Xue ; School of Material and Metallurgy, Northeastern University, Shenyang, Liaoning, China
H. Q. Ru ; School of Material and Metallurgy, Northeastern University, Shenyang, Liaoning, China
X. W. Huang ; National Engineering Research Center for Rare Earth Materials, General Research Institute for Nonferrous Metals, and Grirem Advanced Materials Co., Ltd., Beijing,China
H. Yang ; School of Material and Metallurgy, Northeastern University, Shenyang, Liaoning, China

Abstract

In this paper the extraction and separation of cerium/fluorine in fluoride-bearing cerium sulfate solution with fluoride coordination agent has been studied. The UV-vis spectra suggest that Zr6+ and Al3+ can scrub the F- from [CeF₂] 2+ complex. The separation and conductivity studies show that aluminum salt is the most suitable fluoride coordination agent, and an ion-exchange reaction is involved between Ce4+/ [CeF₂] 2+ and hydrogen ion.

Keywords

fluorine; cerium; separation; fluoride coordination agent

Hrčak ID:

119541

URI

https://hrcak.srce.hr/119541

Publication date:

1.7.2014.

Visits: 1.697 *