Novel Efficient Synthesis of Glycol Monoethers over Highly Active Tungsten-Containing Mesoporous Molecular Sieve SBA-15

Abstract:

A tungsten-containing mesoporous molecular sieve SBA-15 (W-SBA-15) was synthesized directly by the hydrolysis of tetraethylorthosilicate and ammonium tungstate with triblock copolymer EO₂₀PO₇₀EO₂₀ (P123) as template in acidic medium. The W-SBA-15 was characterized by XRD, N₂ adsorption/desorption, UV-Vis spectroscopy, Raman spectroscopy and ICP-AES spectrometry. The W-SBA-15 exhibited high catalytic activity for the hydroxylation of cyclohexene with hydrogen peroxide (H₂O₂) as oxidant. The complete conversion of cyclohexene into glycol monoethers with very high selectivity (92.6%) were obtained over the W-SBA-15 catalyst.

• Periodical: Materials Science Forum (Volumes 809-810)
• Pages: 514-519
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.809-810.514
• Online since: December 2014
• Authors: Yuan Xiang Yao, Su Xing Tuo, Jin Yun Liu, Xin Liang Tan, Zhi Guang Peng*, Jin Gang Yu
• Keywords: Cyclohexene, Glycol Monoethers, SBA-15, Tungsten

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