SELECTION OF EFFECTIVE SOLVENTS FOR THE SEPARATION OF FLUOROAROMATIC COMPOUNDS BY EXTRACTION RECTIFICATION

Citation
Mi. Zaretskii et al., SELECTION OF EFFECTIVE SOLVENTS FOR THE SEPARATION OF FLUOROAROMATIC COMPOUNDS BY EXTRACTION RECTIFICATION, Journal of applied chemistry of the USSR, 65(10), 1992, pp. 1854-1857
Citations number
11
Categorie Soggetti
Chemistry Applied
ISSN journal
0021888X
Volume
65
Issue
10
Year of publication
1992
Part
1
Pages
1854 - 1857
Database
ISI
SICI code
0021-888X(1992)65:10<1854:SOESFT>2.0.ZU;2-G
Abstract
It has been established, from a study of complex formation in solution using F-19 NMR spectroscopy, that this method can be successfully use d in the search for and selection of extractants for separating aromat ic compounds with similar boiling points by extraction rectification. Effective extractants (at 60-degrees-C) have been identified as gamma- butyrolactone (for separating the meta and para isomers of difluoroben zene) and 2-pyrrolidone (for separating metadifluorobenzene and fluoro benzene).