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CN104163437A 一种整体式纳米Y型分子筛的制备方法 无效 - 撤回 转让

一种整体式纳米Y型分子筛的制备方法
摘要：
本发明提供了一种整体式纳米Y型分子筛的制备方法，它属于沸石分子筛制备领域。本发明解决了现有合成工艺存在的晶粒尺寸大、成本高等问题。本发明方法为：按一定配比制备NaY分子筛导向剂，在20℃～40℃下搅拌陈化4h～10h；按照NaY分子筛的配比要求，将固体硅源、偏高岭土、导向剂、碱液、去离子水物料混捏均匀，将反应底物装入反应釜中进行晶化，晶化温度控制在100℃～130℃，晶化时间为5h～40h，反应结束后产物经过过滤、洗涤、干燥，得到整体式纳米Y型分子筛。本发明无需添加任何有机物制备纳米Y型分子筛，制备的整体式纳米Y型分子筛是聚集的线团式纳米尺度晶体，分子筛表面积大，活性高。
摘要（英）：

The invention provides a preparation method of an integral NaY molecular sieve, belonging to the field of zeolite molecular sieve preparation and solving the problems of large grain size, high cost and the like of an existing synthetic process. The method comprises the following steps: preparing a NaY molecular sieve guiding agent in a certain proportion, and stirring and ageing at 20-40 DEG C for 4-10 hours; uniformly mixing and kneading a solid silicon source, metakaolin, the guiding agent, alkali liquor and de-ionized water according to the proportion requirement of the NaY molecular sieve, crystallizing a reaction substrate in a reaction kettle at 100-130 DEG C for 5-40 hours, after the reaction is finished, filtering, washing and drying to obtain the integral NaY molecular sieve. The integral NaY molecular sieve is prepared without addition of organic matters, refers to gathered coil type nanocrystals, and is large in surface area and high in activity.

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