采用回转窑对我国高硫铝土矿进行焙烧预处理，考察了焙烧温度、焙烧时间对矿物中硫含量的影响以及对矿物溶出性能的影响。
High sulfur bauxite was roasting pretreated with rotary kiln and the effects of roasting temperature and time on sulfur content and digestion performance of high sulfur bauxite were investigated.
改变合成温度、保温时间以及冷却方式等，对合成试样的结晶性能以及试样中钾元素溶出率的影响很小。
The effect of heating temperature, holding time and cooling mode on its crystallizability and dissolution rate of potassium is not obvious.
结果表明，钙含量和温度是影响有害金属离子溶出的主要因素。
The result showed that the Ca concentration in slag and the temperature are principal factors that have influence on metallic ion leaching.
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