类沸石微孔硼铝酸盐的合成及鉴定

THE SYNTHESIS AND CHARACTERIZATION OF ZEOLITIC MICROPOROUS ALUMINOBORATES

在 Na_2O-CaO-Al_2O_3-B_2O_3-R-H_2O体系中用水热晶化法合成了两种具有新型结构的微孔硼铝酸盐;这两种硼铝酸盐在一定温度下脱除结构中的水和其它分子后,表现出特征的分子筛吸附性质;吸附性能的测定和孔径分布的计算表明它们的孔径大小在5～6之间。

Two novel microporous aluminoborates were hydrothermally synthesizedfrom Na_2O-CaO-Al_2O_3-B_2O_3-R-H_2O systems.After the desorption of water andother molecules within the structure,these two aluminoborates showed char-acteristic adsorption properties similar to those of molecular sieves.The deter-mination of adsorption properties and the calculation of micropore distributionindicated that the size of the micropore is between 5and 7.