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The Potential of Surfactant Modified Supercritical Fluids for Dissolving Polar Dyes
Author(s) -
LewinKretzschmar U.,
Harting P.
Publication year - 2004
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.200400021
Subject(s) - dyeing , supercritical fluid , solubility , pulmonary surfactant , dissolution , supercritical carbon dioxide , polar , chemical engineering , chemistry , organic chemistry , hildebrand solubility parameter , materials science , chromatography , physics , astronomy , engineering
The solubility of different polar dyes in supercritical carbon dioxide and ethane (scCO 2 and scC 2 H 6 ), both modified and unmodified with various surfactants and solvents was determined at temperatures from 323–373 K and in pressure range from 10–45 MPa. The solubility data were correlated with some empirical equations. Furthermore, dyeing experiments with wool and cotton dyes were conducted in order to characterize the impact of modifiers on the dyeing procedure and coloring properties and to prove the practicability of modified fluid systems for commercial procedures.