Etherification of glycerol with methanol catalyzed by SO<sub>3</sub>H-functioned ionic liquids

DONG Chaoqi; GENG Yanlou; AN Hualiang; ZHAO Xinqiang; WANG Yanji

doi:10.3969/j.issn.0438-1157.2013.06.026

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Etherification of glycerol with methanol catalyzed by SO₃H-functioned ionic liquids

更新时间：2025-12-10

- Etherification of glycerol with methanol catalyzed by SO₃H-functioned ionic liquids
- CIESC Journal Issue 6, Pages: 2086-2091(2013)
- 作者机构：
  
  河北工业大学绿色化工和高效节能河北省重点实验室,天津,300130
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.06.026
  CLC： Q203.2
- Online First：05 June 2013，
  
  Published：05 June 2013
- 稿件说明：
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DONG Chaoqi, GENG Yanlou, AN Hualiang, et al. Etherification of glycerol with methanol catalyzed by SO₃H-functioned ionic liquids[J]. CIESC Journal, 2013, (6): 2086-2091. DOI: 10.3969/j.issn.0438-1157.2013.06.026.
DOI：

DONG Chaoqi, GENG Yanlou, AN Hualiang, et al. Etherification of glycerol with methanol catalyzed by SO₃H-functioned ionic liquids[J]. CIESC Journal, 2013, (6): 2086-2091. DOI: 10.3969/j.issn.0438-1157.2013.06.026. DOI：

摘要

考察了[HSO3-bmim]CF3SO3、[HSO3-bmim]P-TSA、[HSO3-bmim]HSO4和[HSO3-bmim]H2PO4四种磺酸功能化离子液体对甘油与甲醇醚化反应的影响。结果表明

离子液体的催化性能与其酸强度相关联

[HSO3-bmim]CF3SO3离子液体的酸强度最强

其催化性能也最好。以[HSO3-bmim]CF3SO3为催化剂

在w([HSO3-bmim]CF3SO3)/w(甘油)=0.5:1(质量比)、n(甲醇)/n(甘油)=8:1(摩尔比)、反应温度190℃、反应时间8 h时

甘油的转化率为84.5%

单甲基甘油醚的选择性为41.4%

二甲基甘油醚和三甲基甘油醚的联合选择性为34.1%。在此基础上

提出了离子液体[HSO3-bmim]CF3SO3催化甘油与甲醇醚化反应的反应机理。

Abstract

The catalytic performance of some SO3H-functionalized ionic liquids ([HSO3-bmim]CF3SO3

[HSO3-bmim]P-TSA

[HSO3-bmim]HSO4 and [HSO3-bmim]H2PO4) in the etherification of glycerol with methanol was evaluated

and the results showed that the catalytic performance of the ionic liquids correlated well with their acid strength.[HSO3-bmim]CF3SO3 had the highest acid strength and showed the best catalytic performance.Under the suitable reaction conditions of mass ratio of [HSO3-bmim]CF3SO3 to glycerol 0.5:1

molar ratio of methanol to glycerol 8:1

reaction temperature 190℃ and reaction time 8 h

conversion of glycerol was 84.5%

selectivity to methyl glycerol ethers and total selectivity to both dimethyl glycerol ethers and trimethyl glycerol ethers were 41.4% and 34.1%

respectively.In addition

the reaction mechanism for etherification of glycerol with methanol in the presence of[HSO3-bmim]CF3SO3 was proposed.

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Etherification of glycerol with methanol catalyzed by SO3H-functioned ionic liquids

DOI：10.3969/j.issn.0438-1157.2013.06.026

摘要

Abstract

关键词

Keywords

references

Etherification of glycerol with methanol catalyzed by SO₃H-functioned ionic liquids