Metal (IV) Phosphates as Solid Catalysts for Selective Dehydration of Sorbitol to Isosorbide

被引：70

作者：

Gu, Mingyan ^{[2
]}

Yu, Dinghua ^{[1
]}

Zhang, Hongman ^{[2
]}

Sun, Peng ^{[1
]}

Huang, He ^{[1
]}

机构：

[1] Nanjing Univ Technol, Coll Biotechnol & Pharmaceut Engn, Nanjing 210009, Peoples R China

[2] Nanjing Univ Technol, Coll Sci, Nanjing 210009, Peoples R China

来源：

CATALYSIS LETTERS | 2009年 / 133卷 / 1-2期

关键词：

Metal (IV) phosphates; Sorbitol; Isosorbide; Dehydration; Deactivation; ZIRCONIUM; RAMAN;

D O I：

10.1007/s10562-009-0142-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Metal (IV) phosphates of tin, zirconium and titanium were used as catalysts for selective dehydration of sorbitol to isosorbide. Tin phosphate showed the highest selectivity to isosorbide with a moderate conversion. The deactivation rates of catalysts were fitted by an empirical Voorhies equation and the results showed tin phosphate had the lowest deactivation rate with the least values of m and n. Thermal analysis showed deactivation rate was in accordance with coke deposition. The acidity caused by functional groups of the catalysts was the direct factor for catalyst lifetime, which was evidenced by NH3-TPD, XRD, IR and Raman characterizations.

引用

页码：214 / 220

页数：7

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