The economical flexibility for processing diasporic bauxite

Abstract

Until now, the domestic diasporic bauxite resources is the primary supplied bauxite for alumina production, and Bayer, dressing Bayer, sintering, mixed combination and serial combination processes are parallel used to produce alumina product in China. At the same time Chinese diasporic bauxite resources was seriously depleted recently with the greatly increasing of alumina capacity. In this paper, depending on current diasporic bauxite conditions, the raw material, energy consumption and raw materials & fuel cost are studied for processing different grade diasporic bauxite with different production processes, at same time the raw material, energy consumption and raw materials & fuel cost are discussed at same A/S for different processes, in order to provide references to economical usage of Chinese bauxite resources for Chinese alumina industry.