A low-deactivation-rate Lewis acid zeolite prepared in an alkali metal ion-containing system for alkene epoxidation. Issue 100 (17th October 2016)

• Record Type: Journal Article
• Authors: Fu, Kai-Rui; Yao, Ji-Kang; Xiao, Qiang; Liu, Hai-Xia; Li, Tian-Duo; Tatsumi, Takashi; Wang, Jin-Gui
• Is Part Of: RSC advances. Volume 6:Issue 100(2016)
• Page Start: 98514
• Page End: 98519
• Publication Date: 2016-10-17
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c6ra17891j
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : The best catalytic performance among the currently reported TS-1 Lewis acid zeolites is achieved due to its durable catalytic life. Abstract : Titanium silicate-1 (TS-1) is a type of commercial titanium-containing Lewis acid zeolite used as a catalyst in environmentally-benign processes to produce epoxide from alkene. Activity, selectivity of targeted products and catalytic life are three key factors to evaluate the catalytic performance of the TS-1 catalyst. Here, we showed a highly active TS-1 catalyst and thereof low-cost synthetic method with the advantages of improving the active-titanium content, yield and reproducibility. The catalytic life is more than 360 minutes while only less than 20 minutes for TS-1 from conventional methods, leading to conversion of reactants more than twice as high as that of TS-1 synthesized by conventional methods. Both the conversion and catalytic life are the best among the current reported TS-1 zeolites for 1-hexene oxidation under similar reaction conditions.