铝交联蒙脱土结构影响因素的研究

Factors influencing the structure of hydroxyl-aluminium cross-linked montmorillonite

利用电镜、比表面仪和X射线衍射分析方法表征了制备的铝交联蒙脱土。结果表明，OH^-与Al^3＋物质的量比、焙烧温度和酸化浓度对交联蒙脱土结构有一定影响，交联剂陈化时间对酸化交联蒙脱土的收率也有影响，最佳条件：n（OH^-）：n（Al^3＋）=2．2，焙烧温度65℃，酸化浓度5％～20％，交联剂陈化时间1．5天。

Hydroxyl-aluminium cross-linked montmorillonite was prepared and characterized by SEM, BET and XRD techniques. The results showed that OH^-/Al^3＋ molar ratio, caMnation temperature and acidification concentration had certain effect on the structure; aging time of the cross-linking agent also had effects on yield of the cross-linked montmorillonite.