PREDICTIVE METHOD FOR CALCULATING THE SOLUBILITY OF SOLIDS IN SUPERCRITICAL GASES APPLICATION TO APOLAR MIXTURES

被引:9
作者
VETERE, A
机构
关键词
D O I
10.1016/0009-2509(79)85163-5
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A thermodynamic method is proposed for calculating the solublities of apolar solids compounds in apolar supercritical gases. The method, analogous to the Hildebrand theory of solids' solubilities in liquid solvents, is mainly based on the application of Scatchard-Hildebrand equation to supercritical fluid mixtures. The derived method is applied to the determination of the ethylene/naphthalene equfiibria at 5 temperatures between 12 and 50°C and over pressure ranges of 50-270 ata. Calculated data are compared with the experimental data by Diepen and Scheffer. Methods for determining the solubility parameters of supercritical gases are discussed. The possibility of extending the proposed theory to polar mixtures of condensed phases in supercritical gases is also indicated. © 1979.
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页码:1393 / 1400
页数:8
相关论文
共 35 条
[11]  
GOUW TH, 1975, ADV CHROMATOGRAPHY, V13
[12]  
Hannay J.B., 1879, P R SOC LOND, V29, P324, DOI [10.1098/rspl.1879.0054, DOI 10.1098/RSPL.1879.0054]
[13]  
Hildebrand J. H., 1950, SOLUBILITY NONELECTR
[14]  
HILDEBRAND JH, 1950, SOLUBILITY NONELECTR, P28
[15]   SOLUBILITY OF NAPHTHALENE IN COMPRESSED ETHANE AND NITROUS OXIDE - CORRELATION OF NAPHTHALENE-GAS SECOND CROSS VIRIAL COEFFICIENTS USING PSEUDOCRITICAL PARAMETERS [J].
KING, AD .
JOURNAL OF CHEMICAL PHYSICS, 1968, 49 (09) :4083-&
[16]  
KING BM, 1969, PHASE EQUILIBRIUM MI
[17]  
LEHMAN H, 1966, CHEM TECHN, V5, P18
[18]   SOLUBILITY OF NAPHTHALENE IN COMPRESSED METHANE ETHYLENE AND CARBON DIOXIDE . EVIDENCE FOR A GAS-PHASE COMPLEX BETWEEN NAPHTHALENE AND CARBON DIOXIDE [J].
NAJOUR, GC ;
KING, AD .
JOURNAL OF CHEMICAL PHYSICS, 1966, 45 (06) :1915-+
[20]  
PAUL PFM, 1971, PRINCIPLES GAS EXTRA