Yang Jimei, Liu Shuling, Liu Yanyan, Zhou Limin, Wen Hao, Wei Huijuan, Shen Ruofan, Wu Xianli, Jiang Jianchun, Li Baojun
College of Chemistry, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P.R. China.
College of Science, Henan Agricultural University, 63 Nongye Road, Zhengzhou 450002, P.R. China.
iScience. 2024 Feb 1;27(3):109064. doi: 10.1016/j.isci.2024.109064. eCollection 2024 Mar 15.
Titanium silicate zeolite (TS-1) is widely used in the research on selective oxidations of organic substrates by HO. Compared with the chlorohydrin process and the hydroperoxidation process, the TS-1 catalyzed hydroperoxide epoxidation of propylene oxide (HPPO) has advantages in terms of by-products and environmental friendliness. This article reviews the latest progress in propylene epoxidation catalyzed by TS-1, including the HPPO process and gas phase epoxidation. The preparation and modification of TS-1 for green and sustainable production are summarized, including the use of low-cost feedstocks, the development of synthetic routes, strategies to enhance mass transfer in TS-1 crystal and the enhancement of catalytic performance after modification. In particular, this article summarizes the catalytic mechanisms and advanced characterization techniques for propylene epoxidation in recent years. Finally, the present situation, development prospect and challenge of propylene epoxidation catalyzed by TS-1 were prospected.
钛硅沸石(TS-1)广泛应用于以过氧化氢为氧化剂的有机底物选择性氧化研究。与氯醇法和氢过氧化法相比,TS-1催化的环氧丙烷过氧化氢环氧化(HPPO)工艺在副产物和环境友好性方面具有优势。本文综述了TS-1催化丙烯环氧化的最新进展,包括HPPO工艺和气相环氧化。总结了用于绿色可持续生产的TS-1的制备和改性,包括使用低成本原料、开发合成路线、增强TS-1晶体传质的策略以及改性后催化性能的提高。特别地,本文总结了近年来丙烯环氧化的催化机理和先进表征技术。最后,对TS-1催化丙烯环氧化的现状、发展前景和挑战进行了展望。