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.

• 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。