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研究了稀土改性丝光沸石催化剂对常压固定床上甲胺化反应的活性及选择性的影响, 结果表明,以钇改性丝光沸石催化剂的活性及对二甲胺的选择性最佳.催化剂表征结果表明, 稀土改性丝光沸石主要是引起丝光沸石中B酸中心发生变化,而对丝光沸石的晶体结构及表面硅铝原子比基本不产生影响.稀土改性能增强催化剂的热稳定性,延长催化剂的寿命.

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