Efficient extraction of 5-hydroxymethylfurfural from multi-components aqueous solution by hydrophobic deep eutectic solvents

IF 8.1 1区工程技术 Q1 ENGINEERING, CHEMICAL Separation and Purification Technology Pub Date : 2024-11-16 DOI:10.1016/j.seppur.2024.130572

Yinglin Mai, Kunchi Xie, Shuyin Liang, Guanwei Li, Jiuhang Song, Chenxi Shi, Zhen Song, Xiaoqing Lin

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Abstract

This study investigates the extraction of 5-hydroxymethylfurfural (5-HMF) from multicomponent aqueous solutions using hydrophobic deep eutectic solvents (DESs) based on terpenoids. The optimized octanoic acid-thymol (1:1) DES achieved an extraction efficiency of 69.92 % with selectivity coefficients of α_5-HMF/LA = 9.05 and α_5-HMF/FA = 232.39. Moreover, after four stages of extraction, the efficiency of 5-HMF extraction reached 98.54 %, with α_5-HMF/LA and α_5-HMF/FA values of 28.51and 1698.13, respectively, demonstrating superior separation of 5-HMF from levulinic acid (LA) and formic acid (FA). Compared to existing technologies, this method offers higher extraction efficiency and selectivity with lower toxicity and operational costs. Theoretical calculations confirmed the role of thymol as both a hydrogen bond donor and acceptor, enhancing non-covalent interactions with 5-HMF. Kinetic studies revealed that lower temperatures favor DES extraction performance, offering new insights into the industrial application of hydrophobic DESs for bio-based chemical separations.

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利用疏水性深共晶溶剂高效萃取多组分水溶液中的 5-羟甲基糠醛

本研究探讨了使用基于萜类化合物的疏水性深共晶溶剂（DES）从多组分水溶液中萃取5-羟甲基糠醛（5-HMF）的方法。优化的辛酸-胸腺酚（1:1）DES 的萃取效率为 69.92%，选择性系数为 α5-HMF/LA = 9.05 和 α5-HMF/FA = 232.39。此外，经过四级萃取后，5-HMF的萃取效率达到98.54%，α5-HMF/LA和α5-HMF/FA值分别为28.51和1698.13，显示了5-HMF从左旋乙酸（LA）和甲酸（FA）中分离的优越性。与现有技术相比，该方法具有更高的萃取效率和选择性，毒性和操作成本更低。理论计算证实，百里酚既是氢键供体，又是氢键受体，能增强与 5-HMF 的非共价相互作用。动力学研究表明，较低的温度有利于 DES 的萃取性能，这为疏水性 DES 在生物基化学分离中的工业应用提供了新的见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Separation and Purification Technology 工程技术-工程：化工

CiteScore

14.00

自引率

12.80%

发文量

2347

审稿时长

43 days

期刊介绍： Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.