Application of silver-based dihydric alcohol to the extraction of methyl linolenate with high extractability and stability replacing ionic liquids

Qianxia Chen; Xianghong Lu; Jianbing Ji

doi:10.1016/j.cjche.2019.12.012

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Application of silver-based dihydric alcohol to the extraction of methyl linolenate with high extractability and stability replacing ionic liquids

Energy, Resources and Environmental Technology | Updated：2026-01-06

- Application of silver-based dihydric alcohol to the extraction of methyl linolenate with high extractability and stability replacing ionic liquids
- Application of silver-based dihydric alcohol to the extraction of methyl linolenate with high extractability and stability replacing ionic liquids
- 中国化学工程学报（英文版） 2020年28卷第3期页码：871-880
- Affiliations：
  
  Biodiesel Laboratory of China Petroleum and Chemical Industry Federation, Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering, Zhejiang University of Technology,Hangzhou,China,310014
- Author bio：
- Funds：
- DOI：10.1016/j.cjche.2019.12.012
  中图分类号：
- 纸质出版：2020
- Accepted：
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Qianxia Chen, Xianghong Lu, Jianbing Ji. Application of silver-based dihydric alcohol to the extraction of methyl linolenate with high extractability and stability replacing ionic liquids[J]. 中国化学工程学报（英文版）, 2020,28(3):871-880.

Qianxia Chen, Xianghong Lu, Jianbing Ji. Application of silver-based dihydric alcohol to the extraction of methyl linolenate with high extractability and stability replacing ionic liquids[J]. Chinese Journal of Chemical Engineering, 2020, 28(3): 871-880.
Qianxia Chen, Xianghong Lu, Jianbing Ji. Application of silver-based dihydric alcohol to the extraction of methyl linolenate with high extractability and stability replacing ionic liquids[J]. 中国化学工程学报（英文版）, 2020,28(3):871-880. DOI： 10.1016/j.cjche.2019.12.012.

Qianxia Chen, Xianghong Lu, Jianbing Ji. Application of silver-based dihydric alcohol to the extraction of methyl linolenate with high extractability and stability replacing ionic liquids[J]. Chinese Journal of Chemical Engineering, 2020, 28(3): 871-880. DOI： 10.1016/j.cjche.2019.12.012.

摘要

Abstract

A novel silver-based dihydric alcohol extractant was substituted for ionic liquids to enrich methyl linolenate (C18-3) from tallow seed oil methyl ester in this study. The interactions among dihydric alcohol

Ag(I) and C18-3 were explored by FT-IR spectroscopy. The effects of dihydric alcohol structure

carrier Ag (I) concentration

temperature and initial feed concentration on extraction yield and selectivity were reported. The good extraction performance was achieved by 1

4-butanediol containing AgBF

. The complexation of Ag (I) with C18-3 was dominant in extraction operation rather than physical partition. Furthermore

a multi-step reverse extraction method was proposed to obtain C18-3 product and regenerate the extractant. 1-Hexene as the stripping phase can facilitate C18-3 reverse extraction. The content of C18-3 in the product was up to 93.36%

and the yield was 73.76%. This work opened a new route for the utilization of the dihydric alcohol properties to manipulate the carrier efficiency for extracting unsaturated fatty acid methyl esters at a lower cost.

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