贵州中低品位铝土矿综合利用分析 -

简要介绍了中国铝土矿资源的整体分布情况,较为详细地分析了贵州修文中低品位铝土矿的化学成分特点、矿物成分特点及XRD特征,综合阐述了中低品位铝土矿在生产氧化铝、耐火材料、化学制品方面以及其他方面的应用情况。认为贵州铝土矿资源丰富,但属于高铝高硅型,且铝硅比较低,除了少数可以用拜耳法来生产氧化铝外,大部分铝土矿属于中低品位铝土矿,在生产氧化铝方面往往采用联合法来处理。对于中低品位铝土矿,除了用于生产氧化铝外,在耐火材料、陶瓷及聚合物等方面的应用也在日渐发展,实现了铝土矿的综合利用。 Summarize the whole distribution of bauxite in China.Emphasize the characteristics of chemical and mineral compositions,X-Ray diffraction(XRD) analysis results of medium-low grade bauxite in Guizhou Province.Introduce its application in alumina,fireproof materials,chemical products producing and the like.The results show that Guizhou Province is abundant in bauxite,which belongs to high aluminum and high silicon type and the ratio of aluminum and silicon is much lower.Due to lower grade,the majority of bauxite are used to produce alumina with combined method,while a small number of bauxite are consumed with Bayer process.In addition to alumina, the medium-low bauxite gradually apply to fireproof material,ceramics and polymer,which help to realize its comprehensive utilization