钠化提高膨润土阳离子交换容量的研究  

Study on Enhancing the Cation-Exhange Capacity of Bentonite by Alkali Activated

作　　者：张建乐[1] 陈万雄[1] 

机构地区：[1]中南工业大学,长沙410083

出　　处：《建材地质》1996年第1期34-37,45,共5页

摘　　要：本文研究了三种不同产地和属性膨润土的钠交换反应，对影响粘土CEC的Na+、H+浓度和温度等因素及其影响机制进行了深入的探讨和分析。在适宜的温度下，通过钠化可显著提高钠、钙基膨润土的CEC，但销饱和及溶液中存在H+时，粘土CEC重新下降。The sodium exchange reaction was studied on three bentonites with different origines and types. The influence factor and mechanism of the concentration of Na+ and H+ and temperature which affect the cation-exchange capacity of clay were discussed and analysed in detail. The cation-exchange capacity of sodium or calcium bentonite can be improved greatly by alkali activated at suitable temperature. The cationexchange capacity will decrease again when the sodium is saturated or H+ present in the system.

关 键 词：钠化 膨润土 阳离子交换容量 矿物 

分 类 号：P578.94[天文地球—矿物学]