论文部分内容阅读
前报工作表明:钙或稀土阳离子交换的Y型分子筛对甲苯脱甲基反应表现出了具有工业生产意义的催化活性及选择性。在此基础上,我们继续对稀土系列催化剂进行了研究,考察了:
The work reported before showed that the demethylation of toluene on Y-type zeolite exchanged with calcium or rare earth cation showed a catalytic activity and selectivity in industrial production. On this basis, we continue to study the rare earth catalyst series, investigated: