Citation: Yun-Ting SHE, Chang-Yu YANG, De-Liang LI, Zhi-Xian CHANG. Reactive Extraction of Amphoteric Organics from the Dilute Solutions[J]. Chinese Journal of Applied Chemistry, ;2021, 38(1): 24-35. doi: 10.19894/j.issn.1000-0518.200150 shu

Reactive Extraction of Amphoteric Organics from the Dilute Solutions

  • Corresponding author: De-Liang LI, lideliang@henu.edu.cn Zhi-Xian CHANG, chzx19@henu.edu.cn
  • Received Date: 19 May 2020
    Accepted Date: 21 July 2020

    Fund Project: the Key Program of the Higher Education Institutions of Henan Province 20A610004

Figures(5)

  • 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.
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