钙基膨润土的提纯、钠化、有机改性研究现状

摘要

我国膨润土资源丰富,但其开发利用严重受矿点属性和品位高低的限制,大量的矿产资源被搁置或被制成低附加值产品.为了加强膨润土的开发利用,本文对低品位钙基膨润土的提纯、钠化、有机改性等作了全面详细介绍,包括相应的制备原理、工艺方法及优缺点、制备过程中的工艺控制因素及其表征方法等,对我国膨润土资源的综合利用具有一定的参考价值.%Bentonite in China is rich in resources, but its development and utilization is severely restricted to the mineral occurrence attribute and grade level. . In order to strengthen the development and utilization of bentonite, the purification, sodium and organic modification of the low-grade Ca-bentonite were introduced in this paper,including the principle of preparation,the process technology,the advantages and disadvantages,thecontrolfactors and the characterization methods during the course of preparation.