文献类型：期刊文献

英文题名：Naoh-Treated Hβ Zeolite: A Highly Efficient and Selective Catalyst for Alkylation of Phenol with Tert-Butanol

作者：Liu, Kande[1]; Wang, Sitan[1]; Zheng, Lishan[1]; Lou, Shifeng[1]; Meng, Xuan[1]; Cao, Fahai[1]; Liu, Naiwang[1]; Shi, Li[1]

机构：[1] The State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China

年份：2023

外文期刊名：SSRN

收录：EI(收录号：20230320798)

语种：英文

外文关键词：Alkylation - Catalysts - Crystallinity - Phenols - Pore structure - Sodium hydroxide

摘要：The catalytic performance of Hβ zeolite treated with different concentration of NaOH on the alkylation of tert-butanol with phenol was studied. The effect of NaOH concentration on the crystallinity, morphology, textural property and acidity of Hβ zeolite was studied by XRD, SEM, N2 adsoption-desorption, FT-IR and Py-IR techniques. A certain concentration of NaOH treatment can regulate the pore structure of Hβ zeolite and remove part of framework aluminum and framework silicon, thus achieving the purpose of regulating the pore structure and acidity of the catalyst. Though lower Bronsted to Lewis acid amount ratio when treated NaOH concentrations were 0.15mol/L, leading to the increasing of selectivity to 4-TBP. The Hβ-0.2M showed the high selectivity of 90.21% for synthesis of 4-TBP, compared with the unmodified parent zeolite, the selectivity of 4-TBP improved 16.7%. ? 2023, The Authors. All rights reserved.