Vapor−Liquid Equilibrium of Propan-2-ol + Propan-1-ol + Sodium Iodide at 298.15 K

Abstract

This paper presents vapor−liquid equilibrium data for the propan-2-ol (1) + propan-1-ol (2) + NaI (3) ternary system measured at 298.15 K using a static method. The salting-out effect was observed for this ternary system. The VLE data were correlated by use of a semiempirical model proposed by Hála. The parameters in Hála's equation were determined to be β = 3.8, E 13 = 35.14, E 23 = 36.56, Λ12 = 1.3404, Λ21 = 0.7464, Λ13 = Λ31 = 0.0774, and Λ23 = Λ32 = 0.1796, respectively. This equation can describe the experimental values with an average deviation of 1.47%.

110th Anniversary: A Case Study on Developing Accurate and Reliable Excess Gibbs Energy Correlations for Industrial Application

“…Udovenko; 60 Suska et al; 72 Andiappan, McLean 73 Khanlarzadeh, Iloukhani 74 propanol + isopropanol Ballare, Van Winkle; 64 Pollack et al, 56 Ocon et al; 75 Guletkin; 76 Hongo et al; 77 Gabaldon et al; 78 Yamamoto, Shibata 79 Poalk et al, 56 Bhuiyan, Tamura; 80 Nan, Hou, Yu 54 propanol + butanol Mohsen-Nia, Memarzadeh 81 Pope et al; 59 Goodwin, Newsham 82 propanol + isobutanol Udovenko; 60 Mozzhukhin et al 83 Khanlarzadeh, Iloukhani 74 isopropanol + butanol Wang, Bao 84 Nan, Hou, Yu 54 isopropanol + isobutanol Ballard, Van Winkle 48 butanol + isobutanol Kay, Donham; 55 Geiseler, Suehnel, Quitzsch; 85 Tamir, Wisniak; 86 Lyzlova; 87 Zhang et al 88 Murakami, Benson; 89 More details on the Aspen Plus data-regression software may be obtained from Schefflan. 39 Figure 3 compares experimental data for the methanol/ ethanol relative volatility at 1 atm (101.3 kPa) with the current correlation, and it is immediately clear that the first task in the correlation development is choosing which data sets to fit (or give higher or lower weight) when there are disagreements among the various data sets.…”