The influence of the silicon saturation coefficient on a calcification-carbonation method for clean and efficient use of bauxite

Through “Calcification-Carbonation Method” treatment, the alkali content in new structure red mud is lower than 0.5%, and the recovery rate of alumina increases by 15% compared to the traditional Bayer process. The new modified red mud can directly be used in the cement industry, with the aim of efficient and clean utilization of low grade bauxite that could be realized by this method.132