Organic Template-Free Synthesis of SSZ-13 Zeolites in Fluoride Media
WANG Xueming1, JI Yanyan2, ZHENG Chunming2
1 State Key Laboratory of Separation Membrane Processes, School of Environmental Science and Engineering, Tiangong University, Tianjin 300387,China 2 State Key Laboratory of Separation Membrane Processes, School of Chemistry and Chemical Engineering, Tiangong University, Tianjin 300387,China
Abstract: Glass fibers were used as silicon source to synthesize SSZ-13 zeolites by hydrothermal route without using organic template. The effects of silica content, SiO2/Al2O3 ratio, alkalinity and crystallization time on the formation of SSZ-13 zeolites were investigated by means of XRD, SEM and Fourier transform infrared spectroscopy (FT-IR). The results showed that pure phase of SSZ-13 zeolites can be synthesized at 120 ℃ for 24 hours from the reaction mixture with molar ratio of n(Na2O)∶n(Al2O3)∶n(SiO2)∶n(H2O)∶n(NH4F)=3∶1∶3.5∶250∶1. No organic template was applied during the synthesis process, so the production cost was reduced. The removal of the organic template is not needed which reduces the emission of harmful gases.
1 Zones S I, U.S. patent, 4544538, 1985. 2 Liu B, Zheng Y H, Hu N, et al.Microporous and Mesoporous Materials, 2014, 196, 270. 3 Zhang Y. Optimized synthesis of zeolite SSZ-13 and its catalysisa perfor-mance in methanol-to-olefins reaction.Master's Thesis, Taiyuan University of Technology, China, 2018 (in Chinese). 张翊. SSZ-13分子筛的优化合成及其MTO催化性能研究.硕士学位论文, 太原理工大学, 2018. 4 JabriH A, Miyake K, Ono K, et al. Microporous and Mesoporous Mate-rials, 2019, 278,322. 5 Zhang Q C, Materail Reports, 1994,8(3), 38 (in Chinese). 张铨昌.材料导报, 1994, 8(3), 38. 6 Peng C, Liu Z D, Horimoto A, et al. Microporous and Mesoporous Mate-rials,2018,255,192. 7 Yu L, Holmgren A, Zhou M, et al.Journal of Materlals Chemistry A, 2018,6(16), 6847. 8 Deimund M A, Harrison L, Lunn J D, et al. ACS Catalysis. 2016,6(2), 542. 9 Geng H L. Interzeolite conversion and solvent-free synthesis for SSZ-13 zeolite. Dalian University of Technology, China, 2018 (in Chinese). 耿海龙. SSZ-13分子筛的转晶及无溶剂合成.硕士学位论文, 大连理工大学, 2018. 10 Zhao Z C, Yu R, Zhao R R, et al. Applied Catalysis B-Environmental, 2017,217,421. 11 Zhang Y R, Huo Z P, Zhang L J, et al. Modern Chemical Industry, 2018, 38(9), 54(in Chinese). 张耀日, 霍志萍, 张丽娟等.现代化工, 2018, 38(9), 54. 12 Martin N, Moliner M, Corma A . Chemical Communications,2015,51(49), 9965. 13 Itakura M,Goto I, Takahashi A,et al. Microporous and Mesoporous Materials,2011, 144 (1-3),91. 14 Imai H, Hayashida N, Yokoi T, et al.Microporous and Mesoporous Materials, 2014,196,341. 15 Bing L C, Tian A X, Wang F, et al. Chemistry-A European Journal, 2018, 24(29), 7428. 16 Liu B, Zhen Y H, Hu N, et al. Microporous and Mesoporous Materials, 2014, 196, 270. 17 Zhang S G, Shen S H, Li Y.Synthesis of zeolite molecular sieve as cheap mineral raw material, Central South University Press,China, 2003 (in Chinese). 张术根, 申少华, 李酽.廉价矿物原料沸石分子筛合成研究, 中南大学出版社, 2013. 18 Bhadra B N, Song J Y, Khan N A, et al. Journal of Catalysis, 2018, 365, 94. 19 JabriH A, Miyake K, Ono K, et al. Microporous and Mesoporous Mate-rials, 2019, 278, 322. 20 Nasser G A, Muraza O, Nishitoba T, et al.Microporous and Mesoporous Materials, 2019, 274, 277.
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2021, Vol. 35 
