石油化工高等学校学报2018，Vol.31Issue(2)：27-31,5.DOI:10.3969/j.issn.1006-396X.2018.02.005
改性Y型分子筛酸性与催化PHA制PAP性能的关联性探究
Correlation between Acidity of the Modified Y Zeolites and the Performance of Preparation of p-Aminophenol from Phenyl-Hydroxylamine
摘要
Abstract
Different NaY molecular sieves,including NaY,HY,USY and Ce-USY,were prepared by in-situ hydrothermal process,ion exchange and/or hydrothermal treatment.The effects of isologous Y molecular sieves on p-aminophenol preparation from phenyl-hydroxylamine rearrangement were studied.XRD,N2 adsorption-desorption and Py-FTIR results showed that although the molecular sieves had differences in crystallinity,they all had the skeleton topology of Y type molecular sieves.The micropore size of HY molecular sieve was about 0.58 nm.NaY molecular sieve had almost no B acid site.For three kinds of other molecular sieves,B acid content ranked in the descending sequence:HY＞USY≈Ce-USY,and L acid content ranked in the descending sequence:USY≈Ce-USY＞ HY.The performance of their catalysts showed that Y-type molecular sieve had the inferior performance,the selectivity and yield of p-aminophenol of target product were less than 15％.So the p-aminophenol product with high yield and purity could be prepared from the smallest amount of reactant only when molecular sieve maintained an appropriate amount of acidity and pore size.关键词
Y型分子筛/酸性/Bambenger重排/对氨基苯酚/选择性Key words
Y zeolite/Acidity/Bambenger rearrangement/p-Aminophenol/Selective分类
能源科技引用本文复制引用
徐东洋,卜宇豪,王焕,安会勇,何宇鹏,丁晓光..改性Y型分子筛酸性与催化PHA制PAP性能的关联性探究[J].石油化工高等学校学报,2018,31(2):27-31,5.基金项目
国家自然科学基金项目(No.21202077). （No.21202077）
