Liu Piwang , Zhang Lunhe, Zhang Xiaofeng and Pei Yu Li Kaigong (Zhengzhou Research Institute of Light Metal, et al. THEORETICAL BASIS OF NEW TECHNOLOGY IN PREDESILICIFICATION AND BAUXITE DRESSING-BAYER PROCESS AND INDUSTRY TECHNIQUE OF NEW TECHNOLOGY[J]. CIESC Journal, 2000, (6).
Liu Piwang , Zhang Lunhe, Zhang Xiaofeng and Pei Yu Li Kaigong (Zhengzhou Research Institute of Light Metal, et al. THEORETICAL BASIS OF NEW TECHNOLOGY IN PREDESILICIFICATION AND BAUXITE DRESSING-BAYER PROCESS AND INDUSTRY TECHNIQUE OF NEW TECHNOLOGY[J]. CIESC Journal, 2000, (6).DOI:
Predesilicification-bauxite dressing-Bayer process is a new technical process in alumina industry proposed firstly in the world. The study on the disaggregation between alumina mineral and silica mineral in the predesilicification presents the theoretical basis for the new process. The study on the different reaction features of hydrated sodium aluminosilicate produced in different temperature with additive lime in atmospheric pressure provides the theoretical basis for its technical and economical feasibility. Some key techniques such as avoidance of bauxite over grinding and gradation of the small particles in bauxite dressing are investigated. The method of the new process in use is mentioned.