PROCESS FOR RECLAIMING CONTAMINATED ELECTROLYTE FROM ELECTROLYTIC CELL USED IN PRODUCTION OF GASEOUS FLUORINE

摘要

<P>PROBLEM TO BE SOLVED: To provide a process for reclaiming a contaminated electrolyte in an electrolytic cell used in the production of gaseous fluorine. Ž<P>SOLUTION: A contaminated electrolyte comprising a mixture of potassium hydrogenfluoride and hydrofluoric acid contaminated with metal ions is reclaimed through the following steps of: (a) removing the contaminated electrolyte from the cell to a treatment tank; (b) adding a lithium compound to the contaminated electrolyte in the treatment tank to induce settlement of at least part of the metal ions; (c) allowing the metal ions to settle to the bottom of the treatment tank; (d) removing the settled metal ions from the bottom of the treatment tank to form a reclaimed electrolyte; and (e) returning the reclaimed electrolyte to the cell. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž