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Dealumination of Zeolite β via Dicarboxylic Acid Treatment

✍ Scribed by Apelian, Minas R.; Fung, Anthony S.; Kennedy, Gordon J.; Degnan, Thomas F.

Book ID
121453917
Publisher
American Chemical Society
Year
1996
Tongue
English
Weight
585 KB
Volume
100
Category
Article
ISSN
0022-3654

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Ammonia stepwise temperature programmed desorption (STPD) and FT-IR spectroscopy hale been used to study the acidity of dealuminated !3-zeolites with Si/Al ratios in the range of 14.5 to 132. A carefully optimized temperature profile starting at 150°C (in order to exclude physisorbed NH,) revealed f