Comparison of catalytic properties of ionic liquids in polyoxymethylene dimethyl ethers synthesis reaction

ZHAO Bianhong; LIU Kangjun; ZHANG Chaofeng; LI Ruifeng

doi:10.3969/j.issn.0438-1157.2013.z1.014

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Comparison of catalytic properties of ionic liquids in polyoxymethylene dimethyl ethers synthesis reaction

更新时间：2025-12-10

- Comparison of catalytic properties of ionic liquids in polyoxymethylene dimethyl ethers synthesis reaction
- CIESC Journal Issue S1, Pages: 98-103(2013)
- 作者机构：
  
  太原理工大学化学化工学院,山西,太原,030024
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.z1.014
  CLC： Q032
- Online First：30 December 2013，
  
  Published：30 December 2013
- 稿件说明：
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ZHAO Bianhong, LIU Kangjun, ZHANG Chaofeng, et al. Comparison of catalytic properties of ionic liquids in polyoxymethylene dimethyl ethers synthesis reaction[J]. CIESC Journal, 2013, (S1): 98-103.
DOI：

ZHAO Bianhong, LIU Kangjun, ZHANG Chaofeng, et al. Comparison of catalytic properties of ionic liquids in polyoxymethylene dimethyl ethers synthesis reaction[J]. CIESC Journal, 2013, (S1): 98-103. DOI： 10.3969/j.issn.0438-1157.2013.z1.014.

摘要

聚甲醛二甲醚是世界公认的环保型燃油添加剂，极具应用前景。为了研究离子液体阴阳离子对甲醇(MeOH)与三聚甲醛(TOX)合成聚甲醛二甲醚反应的影响，本文采用不同的离子液体进行催化反应。在温度120℃、釜压2.0 MPa、原料摩尔比(nMeOH/nTOX)2∶1、催化剂用量2.1%(质量)、反应时间4 h的反应条件下，探讨了离子液体阴阳离子结构对反应性能的影响，通过聚甲醛二甲醚选择性大小的比较，得出了不同离子液体的催化活性顺序。由不同离子液体阴、阳离子的催化活性顺序得出离子液体阴阳离子协同催化甲醇与三聚甲醛合成聚甲醛二甲醚的反应。

Abstract

Polyoxymethylene dimethyl ethers are world recognized environmentally benign fuel additives

and have great application prospect. In order to study the effects of anion and cation of ionic liquids on that methanol and trioxane synthesis polyoxymethylene dimethyl ethers reaction

12 kinds of ionic liquids were used as catalyst. The structure of anion and cation of ionic liquids on the effects of reaction performance was discussed under the optimized reaction condition

which were the reaction temperature of 120℃

reactor pressure of 2.0 MPa

raw material mole ratio of 2∶1

catalyst dosage of 2.1%(mass)

reaction time 4 h. Under these conditions

the catalytic activity order of anion and cation was obtained by comparing the polyoxymethylene dimethyl ethers selectivity. It was concluded that catalytic effects of ionic liquids was not a simple single anion or single cation at work

but the result of the anionic and cationic concerted catalysis.

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