PROCESS FOR MANGANESE REMOVAL FROM METAL BEARING SOLUTIONS

摘要

PROCESS FOR MANGANESE REMOVAL FROM METAL BEARING SOLUTIONS A process of the preferential removal of soluble manganous ions from a metal bearing solution, particularly a zinc sulfate solution to be subjected to electrolysis for the recovery of zinc, comprising treating said solution with an oxidant capable of oxidizing soluble manganous ion to insoluble and filterable gamma-manganese dioxide at a temperature and for a time sufficient to precipitate at least a portion of the manganese present in said solution as gamma-manganese dioxide, said theoretical amount required for substantially total manganese removal from said solution, and separating said precipitate from said solution.