【摘要】 Al/Ce柱撑蒙脱石可以用不同类型的膨润土阳离子交换来制备。制备的方法是用含铝的氯化物（aluminium-chorohydrate(ACH)）和稀土元素（REE-Ce）盐的混合液进行水热处理（120--160℃的条件下，进行到20-72h.）制备柱化液，再用柱化液与膨润土进行交换反应。对准柱撑蒙脱石进行450-500℃的煅烧后. 其晶层间距为2.41*2.54nm，BET表面积约为430m2/g，水热稳定温度>500℃。柱撑蒙脱石大的晶层间距和表面积是由于大量的REE/Al复合离子进入蒙脱石层间所致。Al/Ce复合离子的形成条件为：高浓度的Al(>3.7M)、适当的OH/Al摩尔比率（>2.5）和适当的Al/Ce 摩尔比率（10--30）。更多还原

【Abstract】 Al/Ce pillared montmorillonite were prepared by cation exchange of different bentonites with hydrothermally treated (120-150℃ for 12-72h.) solution containing mixture of aluminum chlorohydrate (ACH) and REE(Ce) salts. After calculation at 450℃ or 500℃ the pillared montmorillonite are characterized by basing spacing of 2.51nm to 2.54nm and have BET surface areas of approximately 430m2/g , and also be stable at least 500℃. The large basal spacing and surface areas are due to the formation of large Al/Ce containing polyoxycation. High initial Al concentrations (at least 3.7M) and proper OH/Al molar ratio (at least 2.5) as well as Al/Ce ratio between 10-30 favored the formation of this cation.更多还原