STUDY ON THE MODIFICATION OF ULTRASTABLE Y-TYPE ZEOLITES WITH H2C4H4O6 IN UNBUFFERED SYSTEM Ⅱ.PREPARATION AND CHARACTERIZATION

被引：0

作者：

钱岭

丁荣刚

阎子峰

王槐平

王彪

机构：

[1] 石油大学重质油国家重点实验室

[2] 石油大学仪器分析中心

来源：

Journal of Natural Gas Chemistry | 1998年 / 02期

关键词：

酒石酸; 高硅铝比; 超稳Y型分子筛; 催化裂化催化剂;

D O I：

暂无

中图分类号：

TQ424.25 [用作吸附剂的人造硅酸盐];

学科分类号：

0817 ;

摘要：

探索了非缓冲条件下，用酒石酸对超稳Ｙ型分子筛进一步脱铝改性的可能性。系统地考察了反应时间、反应温度、酒石酸溶液加入量、溶剂加入量、滴加速度及溶液ｐＨ值对处理过程的影响，并对改性后的分子筛样品采用Ｘ射线衍射测试、差热分析等手段进行了结构与性能的表征。结果表明，所用的分子筛脱铝方法在合适的处理条件下能制备出硅铝比达１２左右的超稳Ｙ型分子筛。改性后的超稳Ｙ型分子筛的晶体结构热稳定性随着骨架硅铝比的提高而增加。

引用

页码：72 / 86+95

页数：16

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