摘要
Manganese carbonate can be converted to many kinds of manganese oxides when it is aerated in air and oxygen. Pure manganese carbonate can be changed into Mn 3O 4 and γ MnOOH, and manganese carbonate ore can be converted to MnO 2 under the air aerating and oxygen aerating circumstances. The oxidation process of manganese carbonate is a changing process of mineral association, and is also a converting process of valence of manganese itself. Not only equilibrium state, but also nonequilibrium state are involved in this whole process. This process is an irreversible heterogeneous complex reaction, and obeys the nonequilibrium thermodynamic model. The oxidation rate of manganese carbonate is controlled by many factors, especially nonmanganese metallic ions which play an important role in the oxidation process of manganese carbonate.
Manganese carbonate can be converted to many kinds of manganese oxides when it is aerated in air and oxygen. Pure manganese carbonate can be changed into Mn 3O 4 and γ MnOOH, and manganese carbonate ore can be converted to MnO 2 under the air aerating and oxygen aerating circumstances. The oxidation process of manganese carbonate is a changing process of mineral association, and is also a converting process of valence of manganese itself. Not only equilibrium state, but also nonequilibrium state are involved in this whole process. This process is an irreversible heterogeneous complex reaction, and obeys the nonequilibrium thermodynamic model. The oxidation rate of manganese carbonate is controlled by many factors, especially nonmanganese metallic ions which play an important role in the oxidation process of manganese carbonate.
关键词
碳酸盐
氧化作用
非平衡热力学模型
锰矿床
manganese carbonate
oxidation
reaction affinity
nonequilibrium thermodynamic model
