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<p>Acetalization of glycerol to yield solketal (2,2-dimethyl-1,3-dioxolane-4-methanol) was carried out over 12-tungstophosphoric acid (HPW) catalysts supported on MCM-41 mesoporous molecular sieve. The catalysts with different HPW loadings were prepared through ultrasonic irradiation and impregnation. The structural and textural properties of catalysts were characterized by XRD, N<sub>2</sub>-physisorption, FT-IR, TEM and SEM. The effects of various parameters, such as HPW loading, reaction temperature, acetone/glycerol molar ratio and catalyst amount on the glycerol acetalization were studied. The results suggested that 30&#xa0;wt% HPW/MCM-41 catalyst exhibited better catalytic activity than other catalysts under investigated.</p>

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12-Tungstophosphoric acid supported on MCM-41 as catalyst for glycerol acetalization

  • 期刊论文

  • 发表日期：

    2025年5月8日

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  • Song-Il Kong,
  • Chol-Ung Kim,
  • Chol-Ho Choe,
  • Yong-Song Pak,
  • Hyok Yun,
  • Il-Ryong Kim

摘要

Acetalization of glycerol to yield solketal (2,2-dimethyl-1,3-dioxolane-4-methanol) was carried out over 12-tungstophosphoric acid (HPW) catalysts supported on MCM-41 mesoporous molecular sieve. The catalysts with different HPW loadings were prepared through ultrasonic irradiation and impregnation. The structural and textural properties of catalysts were characterized by XRD, N2-physisorption, FT-IR, TEM and SEM. The effects of various parameters, such as HPW loading, reaction temperature, acetone/glycerol molar ratio and catalyst amount on the glycerol acetalization were studied. The results suggested that 30 wt% HPW/MCM-41 catalyst exhibited better catalytic activity than other catalysts under investigated.