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以浙江和新疆的膨润土为原料合成了氧化铝柱支撑蒙脱石，成柱溶液以Na2CO3为碱水解铝盐溶液制得。因为制备含有大聚羟基铬阳离子的成柱溶液是获得具有大的基面间距的柱支撑粘土的关键，我们详细研究了CO32-／Cr3＋值、水解温度和水解时间对所得柱支撑蒙脱石性质的影响。聚羟基铬阳离子通过阳离子交换引入蒙脱石，所得产物用X射线衍射分析和BET氮比表面等方法研究。所得氧化铝柱支撑蒙脱石（简称Cr－mont）的基面间距为2．55nm，BET氮比表面积为190～230m2／g。
Alumina column supported montmorillonite was synthesized from bentonite in Zhejiang and Xinjiang. The column solution was prepared by using Na2CO3 as the alkali hydrolysis aluminum salt solution. Since the preparation of a column solution containing large polyhydroxy chromium cations is the key to obtaining column-supported clay with a large base-to-surface spacing, we examined in detail the effect of CO32- / Cr3 + values, hydrolysis temperature and hydrolysis time on the resulting column-supported montmorillonite Impact. Polyhydroxylium cations are introduced into the montmorillonite by cation exchange and the resulting product is investigated by X-ray diffraction analysis and BET nitrogen specific surface methods. The obtained alumina column supported montmorillonite (Cr-mont) has a base spacing of 2.55 nm and a BET specific surface area of 190-230 m2 / g.