CAJ | 학술논문

综述了负载型钨基催化剂用于烯烃歧化领域的研究情况，简要介绍了烯烃歧化催化剂的研究进展以及歧化反应机理，着重介绍了 MgO 助剂在 WO3/SiO2催化的丙烯歧化反应中的作用，如生成活性的气相激发物种、促进1-丁烯异构成2-丁烯、调节酸性以减少副反应以及吸附毒物净化原料等，并对MgO在歧化体系中的作用机理问题进行了部分探讨。此外，还提出了共催化体系的研究趋势，希望能对以后开发高活性的 MgO-WO3/SiO2共催化体系提供有益的指导和参考依据。
종술료부재형오기최화제용우희경기화영역적연구정황，간요개소료희경기화최화제적연구진전이급기화반응궤리，착중개소료 MgO 조제재 WO3/SiO2최화적병희기화반응중적작용，여생성활성적기상격발물충、촉진1-정희이구성2-정희、조절산성이감소부반응이급흡부독물정화원료등，병대MgO재기화체계중적작용궤리문제진행료부분탐토。차외，환제출료공최화체계적연구추세，희망능대이후개발고활성적 MgO-WO3/SiO2공최화체계제공유익적지도화삼고의거。
This paper reviews the progress of heterogeneous W-based catalysts used for olefin metathesis and introduces the research progress of olefin metathesis catalyst and metathesis reaction mechanism. This review focuses on the role of MgO aid in WO3/SiO2 catalytic propylene metathesis reaction,such as generating active gas-phase“excited species”,promoting double bond isomerization, adjusting acidity to reduce side effects and adsorbing poisons to purify the raw material,etc. In addition,this paper also presents the research trend of heterogeneous MgO-WO3/SiO2 metathesis catalysts to provide guidance and reference for development of highly active MgO-WO3/SiO2 catalytic systems.