China is rich in bauxite resources, but our resources is diaspore with low ratio of A/S.The bauxite digests difficultly and with high cost and expenditure of energy and base.

• 我国铝土矿属高铝、高硅的一水硬铝石型铝土矿，资源丰富，但铝硅比低，氧化铝溶出性能差，碱耗、能耗高，生产成本高。