Preparation method for manganese hydroxide and use thereof

Abstract

The present disclosure provides a preparation method of manganese hydroxide, including subjecting a coarse manganese metal powder and water to a reaction under temperature-rising condition to obtain a manganese hydroxide slurry; oxidizing the manganese hydroxide slurry to obtain high-purity trimanganese tetraoxide; reducing the high-purity trimanganese tetraoxide to obtain high-purity manganese monoxide, allowing the manganese hydroxide slurry and carbon dioxide to have a reaction to obtain high-purity manganese carbonate; roasting the high-purity manganese carbonate to obtain the high-purity manganese monoxide. In the present disclosure, the preparation method maintains a purity advantage of electrolytic manganese metal products, can reduce energy consumption, achieve safe and clean production, and avoid environmental problems.

Dependencies are inferred from the claim text.