EXRACTION AND SEPARATION OF CERIUM(IV)/FLUORINE IN FLUORIDE-BEARING CERIUM SULFATE SOLUTION WITH FLUORIDE COORDINATION AGENT

摘要

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 Zr~(6+) and Al~(3+) can scrub the P 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 Ce~(4+)/ [CeF_2]~(2+) and hydrogen ion.