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铝土矿的溶出过程是一个相当复杂的物理化学反应过程，通过预焙烧可以显著改善铝土矿的溶出性能，焙烧使铝土矿的溶出动力学参数发生了大的改变。求取了铝土矿焙烧前后的溶出动力学方程，并分析了焙烧强化溶出的动力学机理。
The leaching process of bauxite is a rather complicated process of physicochemical reaction. The leaching performance of bauxite can be significantly improved by pre-bake. The dissolution kinetic parameters of bauxite have been greatly changed. The dissolution kinetic equation of bauxite before and after roasting was obtained, and the kinetic mechanism of roasting enhanced dissolution was analyzed.