| 摘要 |
This disclosure relates to novel metal halide containing zeolites, particularly crystalline aluminosilicate zeolites and methods for their preparation. Such materials are prepared by treating alkali or alkaline earth forms of crystalline aluminosilicate zeolites with a volatile halide of a less positive metal or nonmetal than the alkali or alkaline earth metals under relatively anhydrous conditions. The resulting products may be used as formed or may be washed free of soluble halides prior to use. Utility for these materials is to be found as adsorbents, particularly selective adsorbents and as catalysts for acid-catalyzed reactions such as catalytic cracking, alkylation, polymerization, isomerization and other carbonium ion type reactions.
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