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Measurement and correlation of solubility of disperse anthraquinone and azo dyes in supercritical carbon dioxide

Authors
  • Joung, Seung Nam1
  • Shin, Hun Yong1
  • Park, Young Hwan1, 2
  • Yoo, Ki-Pung1
  • 1 Sogang University, Department of Chemical Engineering, Seoul, Korea , Seoul
  • 2 KITECH, San 17-1, HongChonRi, IbJangMyun, ChonAnSi, 330-820, Korea , ChonAnSi
Type
Published Article
Journal
Korean Journal of Chemical Engineering
Publisher
Springer-Verlag
Publication Date
Jan 01, 1998
Volume
15
Issue
1
Pages
78–84
Identifiers
DOI: 10.1007/BF02705309
Source
Springer Nature
Keywords
License
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Abstract

The solubility of three disperse anthraquinone dyes and two azo dyes in supercritical CO2 was measured. The tested dyes are Celliton fast blue B, l-amino-2-methylanthraquinone, 1-methylaminoanthraquinone, disperse Red 1 and 4-[4-(phynylazo)phenylazo]-o-cresol. Solubility measurements were made at 313.15-393.15 K and 10-25 MPa in a high-temperature autoclave phase equilibrium apparatus. Pure physical properties of the dyes such as critical constants, molar volumes and vapor pressures were estimated based on semi-empirical methods. Also, the data were quantitatively modeled by both an empirical density correlation and a quantitative equation of state recently proposed by the present authors based on nonrandom lattice theory. We found that anthraquinone disperse dyes in general show higher solubility than azo disperse dyes in supercritical CO2 within the experimental ranges.

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