两性有机物稀溶液的配合萃取

doi:10.19894/j.issn.1000-0518.200150

摘要/Abstract

摘要： 配合萃取由于其化学键能一般为10～60 kJ/mol,既能形成配合物,实现相转移,又能使配合剂在反萃时容易再生,因而得到较为广泛的研究和应用。本文从多种两性有机物(氨基酸、吡啶甲酸、羟基吡啶、对氨基苯甲酸、4,4'-二氨基二苯乙烯-2, 2'-二磺酸、氨基苯酚、羟基喹啉等)的配合萃取、动力学以及新型萃取工艺的开发—气浮配合萃取3个方面对近期研究成果进行了总结。最后,分析了配合萃取的研究现状,指出了工业化基础薄弱、缺少高效绿色萃取剂等问题,并对未来研究和工业应用提出合理建议。

关键词: 配合萃取, 两性有机物, 稀溶液, 动力学, 气浮配合萃取

Abstract: Reactive extraction has attracted great attentions and applications because the energy of its chemical bond is generally 10~60 kJ/mol, which not only facilitates the formation of complexes and phase transfer, but also makes the regeneration of complexing agent easier in the stripping process.This work summarizes the recent research progress on reactive extraction of amphoteric organics from the dilute solutions. The discussions mainly focus on the reactive extractions of various amphoteric organics, the kinetics of reactive extraction and new reactive extraction technique (i.e., flotation complexation extraction). In particular, the reactive extractions of amino acids,picolinic acid,hydroxypyridine,4,4'-diaminostilbene-2,2'-disulfonic acid, aminophenols, hydroxyquinoline and other commonly used amphoteric compounds are concluded. At last, the current research situation in this field is prospected. It points out that the weak industrial foundation and the lack of efficient green extractants are the main problems in the field, as well as some suggestions are put forward for the future research and industrial application.

Key words: Reactive extraction, Dilution solution, Amphoteric organics, Kinetics, Flotation complexation extraction

中图分类号:

O658.2

佘蕓廷, 杨长钰, 李德亮, 常志显. 两性有机物稀溶液的配合萃取[J]. 应用化学, 2021, 38(1): 24-35.

SHE Yun-Ting, YANG Chang-Yu, LI De-Liang, CHANG Zhi-Xian. Reactive Extraction of Amphoteric Organics from the Dilute Solutions[J]. Chinese Journal of Applied Chemistry, 2021, 38(1): 24-35.

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