Recycling and Reuse of Ionic Liquid in Homogeneous Cellulose Acetylation

黄科林; 吴睿; 曹妍; 李会泉; 王金淑

doi:10.1016/S1004-9541(13)60524-8

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Recycling and Reuse of Ionic Liquid in Homogeneous Cellulose Acetylation

材料与产品工程 | Updated：2026-01-06

- Recycling and Reuse of Ionic Liquid in Homogeneous Cellulose Acetylation
- Recycling and Reuse of Ionic Liquid in Homogeneous Cellulose Acetylation
- 中国化学工程学报（英文版） 2013年21卷第5期页码：577-5841004-954160524-8
- Affiliations：
  
  1. 2 Guangxi Branch of China Academy of Science and Technology Development,Nanning,China,530022
  2. 3 Institute of Process Engineering, Chinese Academy of Sciences,Beijing,China,100190
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(13)60524-8
  中图分类号：
- 纸质出版：2013
- Accepted：
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黄科林, 吴睿, 曹妍, 等. Recycling and Reuse of Ionic Liquid in Homogeneous Cellulose Acetylation[J]. 中国化学工程学报（英文版）, 2013,21(5):577-5841004-954160524-8.

HUANG Kelin, WU Rui, CAO Yan, LI Huiquan, WANG Jinshu. Recycling and Reuse of Ionic Liquid in Homogeneous Cellulose Acetylation[J]. Chin.J.Chem.Eng., 2013, 21(5): 577-584.
黄科林, 吴睿, 曹妍, 等. Recycling and Reuse of Ionic Liquid in Homogeneous Cellulose Acetylation[J]. 中国化学工程学报（英文版）, 2013,21(5):577-5841004-954160524-8. DOI： 10.1016/S1004-9541(13)60524-8.

HUANG Kelin, WU Rui, CAO Yan, LI Huiquan, WANG Jinshu. Recycling and Reuse of Ionic Liquid in Homogeneous Cellulose Acetylation[J]. Chin.J.Chem.Eng., 2013, 21(5): 577-584. DOI： 10.1016/S1004-9541(13)60524-8.

摘要

Abstract

Molecular distillation was used to recover ionic liquid (IL) 1-allyl-3-methylimidazolium chloride (AmimCl) in homogeneous cellulose acetylation. The five factors that affect the separation efficiency of molecular distillation

namely

feed flow rate

distillation temperature

feed temperature

wiper rotating speed

and distillation pressure

are discussed. The optimal recovery condition was determined via orthogonal experiments using an OA

) design. The IL was recycled and reused 5 times in the homogeneous cellulose acetylation system under optimal conditions. The purity of recycled IL the 5th time reached 99.56%. FT-IR (Fourier transform infrared spectroscopy) and

H NMR (nuclear magnetic resonance) spectroscopy showed that the structure of the recovered IL is not changed. This work proves that AmimCl has excellent reusability

and that molecular distillation is an effective method for recovering IL in homogeneous cellulose acetylation.

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