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Solubility Measurement and its Correlation of Disperse Dye in Supercritical HFC-134a  

Park, Min-Woo (School of Chemical Engineering and Technology, Yeungnam University)
Bae, Hyo-Kwang (School of Chemical Engineering and Technology, Yeungnam University)
Publication Information
Korean Chemical Engineering Research / v.40, no.6, 2002 , pp. 715-718 More about this Journal
Abstract
The supercritical dyeing process has been gaining the increasing importance because of environment reason. For further development of this process, it is needed to measure the solubility in supercritical fluids in the extensive ranges of temperature and pressure. In this study, using the semi-flow type apparatus consisted of supercritical fluid equilibrium cell, the solubility of disperse dye(C.I. disperse red 60) in supercritical HFC-134a has been measured at the temperatures of 383.2 K and 413.2 K, and in the pressure range of 50 bar to 160 bar. The solubility data are, with good agreement, correlated by an expanded liquid model which considers the supercritical fluid as compressed liquid.
Keywords
Supercritical Fluid; Expanded Liquid Model; Solubility of Dye; HFC-134a; Supercritical Dyeing;
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