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How To Make Manganese Sulfate Patent

A rather novel process for recovery of manganese with pickle liquor weak feso 4-h 2 so 4-nh 4 2 so 4 solutions from low grade manganese ores was developed by us bureau of mine brantley and rampacek 1968.The process is schematically shown in fig.1.This process features the simultaneous high temperature hydrolysis of feiii and precipitation of manganese as manganese double salt nh.