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发明公开
CN1353086A 一种Y型分子筛的制备 失效 - 权利终止

一种Y型分子筛的制备
摘要：
一种含磷和稀土的Y型分子筛的制备方法,该方法包括将NaY分子筛先用铵离子和稀土离子交换并水热焙烧,然后将其与磷化合物反应结合上0.2～10重量%的P2O5,再进行水热焙烧。本发明方法所得Y型分子筛能显著降低FCC汽油的烯烃含量,同时能保持良好的焦炭选择性。
摘要（英）：

A process for prparing the pand rare earth-contained Y-type molecular sieve from NaY one includes such steps as exchanging with ammonium ions and rare-earth ions, hydrothermal calcining, reaction with phosphorus compound to bind P2O5 (0.1-10 wt%), and further hydrothermal calcining. This invented molecular sieve can greatly reduce the content of olefin in FCC gaseline and has good coke selectivity.

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