一种亚微米级X型分子筛及其制备方法和应用
本发明涉及硅铝分子筛材料技术领域,尤其涉及一种亚微米级X型分子筛及其制备方法和应用,包括以下步骤:1)前驱体溶液的制备;2)无定形硅铝酸盐凝胶的制备;3)改性凝胶的制备;4)晶化与分离。本发明具有的优点是该亚微米级X型分子筛具有规整的正八面体形貌,晶体尺寸为0.8‑1.3μm,结晶度不低于95%,BET比表面积为700‑800m/g。本发明方法晶化时间短,所得分子筛形貌规整、尺寸均一,经离子交换后可用于C芳烃异构体的吸附分离。
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