Keyword: «psilomelan»

A study of hydrogen reduction of metallic manganese from iron-manganese ores of colloidal origin has been carried out. The structure of oxides and hydroxides of iron and manganese are typical structures of crystallized dispersed systems with a solid dispersed medium – colloids. The optimal temperature and gas supply rate have been experimentally selected to facilitate the course of an intensive reduction reaction. The reduction of manganese occurs sequentially from higher oxides to S.G.lower ones to pure manganese. Preliminary mechanical activation of the ore on the vibrator contributed to the complete course of the manganese reduction reaction.