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

• Main Authors: Y. Li, J. G. He, X. X. Xue, H. Q. Ru, X. W. Huang, H. Yang
• Format: Article
• Language: English
• Published: Croatian Metallurgical Society 2014-07-01
• Series: Metalurgija
• Subjects: fluorine; cerium; separation; fluoride coordination agent
• Online Access: http://hrcak.srce.hr/file/176684
• ISSN: 0543-5846; 1334-2576

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.