铝土矿选矿脱硅技术研究现状及前景展望

随着我国铝土矿资源的消耗日益增加,优质铝土矿资源的匮乏,低品质铝土矿的开发和利用是未来铝土矿选矿的重点方向。因此,研究高效、环保、低能耗的铝土矿脱硅工艺是选矿工作者的主要目标。本文系统的介绍了生物选矿脱硅、化学选矿脱硅和物理选矿脱硅等选矿脱硅技术,对近年来研究的铝土矿脱硅技术的脱硅效果分别进行了评述,并对目前几种有前景的脱硅工艺进行了重点讨论。

Present Situation and Prospect of Bauxite Desiliconization Technology

With the fast increasing of bauxite resources consumption and the lack of high quality bauxite resources in China, the development and utilization of low-quality bauxite is the focus direction in the future direction. Therefore, researches on desiliconizing process which has characteristics of high efficiency,environmentally and low-power consumption are the key goals for researchers in this filed.The methods of desilicification for bauxite involving biological process,chemical and physical process and others were reviewed systematically in this paper.Different effects of desiliconization processes of bauxite in recent years were also discussed,and several promising processes were emphasized.