SCI和EI收录∣中国化工学会会刊

›› 2010, Vol. 18 ›› Issue (4): 648-653.

• THERMODYNAMICS AND chemical engineering data • Previous Articles     Next Articles

Measurement and Correlation of Solubilities of C.I.Disperse Red 73, C. I. Disperse Blue 183 and Their Mixture in Supercritical Carbon Dioxide

ZHENG Jinhua1, XU Mingxian2, LU Xueyan11, LIN Chunmian1   

  1. 1. College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310014, China;
    2. Department of Chemical Engineering, Hangzhou Vocational Technical College, Hangzhou 310018, China
  • Received:2009-12-08 Revised:2010-03-30 Online:2010-08-28 Published:2010-08-28

Measurement and Correlation of Solubilities of C.I.Disperse Red 73, C. I. Disperse Blue 183 and Their Mixture in Supercritical Carbon Dioxide

郑金花1, 徐明仙2, 鲁雪燕1, 林春绵1   

  1. 1. College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310014, China;
    2. Department of Chemical Engineering, Hangzhou Vocational Technical College, Hangzhou 310018, China
  • 通讯作者: LIN Chunmian, E-mail:lcm@zjut.edu.cn
  • 基金资助:
    Supported by the Natural Science Foundation of Zhejiang Province(M203035)

Abstract: The solubility of disperse dyes and their mixture in supercritical carbon dioxide is an important property in study and development of supercritical fluid dyeing technology.In this study,solubilities of C. I. Disperse Red 73,C.I.Disperse Blue 183 and their mixture in supercritical CO2 are measured at temperatures from 343.2 to 383.2 K and pressures from 12 to 28 MPa with a static recirculation method.Under the experimental conditions for the binary(C. I.Disperse Red 73+CO2 or C. I. Disperse Blue 183+CO2) and ternary (C. I. Disperse Red 73+C. I. Disperse Blue 183+CO2) systems,the solubilities increase with pressure.The solubility of C. I.Disperse Blue 183 decreases with the increase of temperature when the pressure is lower than 16 MPa,and the trend is opposite when the pressure is higher than 16 MPa.However,there is no crossover pressure for C.I.Disperse Red 73.The solubilities are also affected by molecular polarity of dyes.The co-solvent effect exhibited in the dissolving process of mixed dyes promotes their dissolution in supercritical CO2 .The experimental data of solubilities of C. I.Disperse Red 73,C. I.Disperse Blue 183,and their mixture are correlated with the Chrastil model and Mendez-Santiago/Teja model. The former is more accurate.

Key words: supercritical CO2 , solubility, Disperse Red 73, Disperse Blue 183

摘要: The solubility of disperse dyes and their mixture in supercritical carbon dioxide is an important property in study and development of supercritical fluid dyeing technology.In this study,solubilities of C. I. Disperse Red 73,C.I.Disperse Blue 183 and their mixture in supercritical CO2 are measured at temperatures from 343.2 to 383.2 K and pressures from 12 to 28 MPa with a static recirculation method.Under the experimental conditions for the binary(C. I.Disperse Red 73+CO2 or C. I. Disperse Blue 183+CO2) and ternary (C. I. Disperse Red 73+C. I. Disperse Blue 183+CO2) systems,the solubilities increase with pressure.The solubility of C. I.Disperse Blue 183 decreases with the increase of temperature when the pressure is lower than 16 MPa,and the trend is opposite when the pressure is higher than 16 MPa.However,there is no crossover pressure for C.I.Disperse Red 73.The solubilities are also affected by molecular polarity of dyes.The co-solvent effect exhibited in the dissolving process of mixed dyes promotes their dissolution in supercritical CO2 .The experimental data of solubilities of C. I.Disperse Red 73,C. I.Disperse Blue 183,and their mixture are correlated with the Chrastil model and Mendez-Santiago/Teja model. The former is more accurate.

关键词: supercritical CO2 , solubility, Disperse Red 73, Disperse Blue 183