The effect of temperature on the liquid-liquid equilibria of some aliphatic alcohols + di-sodium hydrogen citrate + water systems: Experimental and correlation
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- 作者：Mohammed Taghi Zafarani-Moattar ; Parisa Jafari
- 关键词：Liquid&ndash ; liquid equilibrium ; Alcohols ; Di-sodium hydrogen citrate ; Setschenow-type equation ; generalized e-NRTL model ; generalized Wilson model
- 刊名：Fluid Phase Equilibria
- 出版年：2013
- 出版时间：15 September, 2013
- 年：2013
- 卷：353
- 期：Complete
- 页码：50-60
- 全文大小：767 K
文摘
Liquid-liquid equilibrium data for the ternary systems (1-propanol, 2-propanol, 2-methyl-2-propanol, 1-butanol and 2-butanol + di-sodium hydrogen citrate + water) were measured at T = 298.15, 308.15 and 318.15 K. The phase-separation ability of the studied systems was discussed on the basis of the solubility of the constitutive alcohol. Furthermore, the effect of temperature on the tie-line at investigated systems was discussed. The Merchuk equation with three parameters as the temperature dependency form was successfully used for the correlation of binodal data in working temperatures. In addition, the experimental tie-line data were reproduced using the Setschenow-type equation, the generalized e-NRTL and generalized Wilson models.