Micro-scale processes occurring in ionic liquid–water phases during extraction

Micro-scale processes occurring in ionic liquid–water phases during extraction Full article

Journal

Separation and Purification Technology
ISSN: 1873-3794 , E-ISSN: 1383-5866

Output data

Year: 2018, Volume: 196, Pages: 318-326 Pages count : 9 DOI: 10.1016/j.seppur.2017.06.056

Authors

Seitkalieva Marina M. ¹ , Kashin Alexey S. ¹ , Egorova Ksenia S. ¹ , Ananikov Valentine P. ¹

Affiliations

1	N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russia

For the first time, extraction process in ionic liquids was visualized by direct electron microscopy observation. Microscopy images revealed the micro-heterogeneous nature of the studied extraction systems. Depending on the nature of ionic liquids and studied compounds, four main systems were observed at micro-scale level: (a) uniform homogeneous phase; (b) microcompartments in the liquid phase; (c) solid microinclusions on the phase boundary; and (d) solid microinclusions inside the separated microphases. The microscopic monitoring showed the stepwise sequence of the extraction process, and the retention ability of the ionic liquid–water system decreased in the following order: homogeneous phase > microcompartments > solid microinclusions.

Seitkalieva M.M. , Kashin A.S. , Egorova K.S. , Ananikov V.P.
Micro-scale processes occurring in ionic liquid–water phases during extraction
Separation and Purification Technology. 2018. V.196. P.318-326. DOI: 10.1016/j.seppur.2017.06.056 WOS Scopus OpenAlex

≡ Web of science:	WOS:000427211200039
≡ Scopus:	2-s2.0-85021418027
≡ OpenAlex:	W2652234200