英文摘要
Abstract: This paper selected three routes to compared : (1) Using the method of Manganese wet to prepare manganese sulfate; (2)The treatment of manganese sulfate treated the manganese by SO2 ；(3)Using Pyrite to make a sulfate treatment to manganese. This experiment Used the technology of maturated manganese by concentrated sulfuric acid and mixture the pyrite.Compared with other methods， this technology has the following advantages : It not only reduces the consumption of raw materials， and also avoids the high temperature operating conditions; using low-grade manganese ore， can improve the productivity rate. Compared With the traditional two mining law， it have the characteristics of energy-efficient and improve the rate of production. This experiment considered the impact of temperature， acidity， two iron sulfide， manganese dioxide， the mine tablets changes in the diameter of manganese sulfate product. And we have get that when the reaction temperature was to be 920C， and reaction time was to be 2.5 hours; and the atmospheric pressure ，the agitator’s speed was to be 50r/min; and manganese Dioxide : 34.8g; two iron sulfide : 6.4g; Sulfate : 20mL，we can get the highest extraction rate 88.7%.
