Vapor-liquid equilibrium at 60.degree. for n-hexane-alkyl amines and 1-hexene-alkyl amines

Humphrey, J. L.

doi:10.1021/je60035a018

Cited by 38 publications

(6 citation statements)

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“…system for the still was the one developed by Hanson and Van Winkle (2) and used by Humphrey and Van Winkle (6). Nitrogen was used to maintain the pressure of the system at 760 mm.…”

mentioning

confidence: 99%

Vapor-liquid equilibriums of the ternary system acetone-chloroform-2,3-dimethylbutane

Garrett¹

1969

J. Chem. Eng. Data

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Vapor-liquid equilibrium data at 760 mm. of Hg were determined in a modified Colburn still for the ternary system acetone-chloroform-2,3-dimethylbutane. This system is comprised of two binary minimum-boiling homogeneous azeotropes and one maximum-boiling homogeneous azeotrope. The data were correlated by means of the two-parameter Wilson equation.Knowledge of multicomponent vapor-liquid equilibrium data is important in the design of distillation equipment. The purpose of this study was to determine the vapor-liquid equilibria for the non-ideal ternary system acetone-chloroform-2,3-dimethylbutane at 760 mm. of Hg, and to compare the experimental results with ternary data predicted from available binary data, using a suitable correlating equation. EXPERIMENTAL Materials. All three chemicals as received had a guaranteed purity of at least 99 mole %. No further purification was considered necessary. The essential properties of the materials are shown in Table I.Procedure. The equilibrium data were obtained in a modified Colburn still (7), as described by Hollenshead and Van Winkle (4) and others (3, 11). The modified Colburn still used here (Figure 1) was the same as that described by Hollenshead and Van Winkle, with certain changes in the arrangement of the heating coils. The heating

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“…system for the still was the one developed by Hanson and Van Winkle (2) and used by Humphrey and Van Winkle (6). Nitrogen was used to maintain the pressure of the system at 760 mm.…”

mentioning

confidence: 99%

Vapor-liquid equilibriums of the ternary system acetone-chloroform-2,3-dimethylbutane

Garrett¹

1969

J. Chem. Eng. Data

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“…57,58 Furthermore, in order to obtain reliable estimates of the interaction between the amine and alkyl groups, experimental data for the isobaric VLE of binary mixtures of secondary alkylamines and linear alkanes are also considered. 59,60 Specifically, experimental data for diethylamine + n-hexane, 59 diethylamine + n-heptane, 59 and dipropylamine + n-hexane 60 are included in the parameter estimation procedure. The optimal values estimated for the NH group interactions are reported in Tables 2-4.…”

Section: Substituted Cyclic Alkanes: Cch Groupmentioning

confidence: 99%

Description of the thermodynamic properties and fluid‐phase behavior of aqueous solutions of linear, branched, and cyclic amines

et al. 2021

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The SAFT-γ Mie group-contribution equation of state is used to represent the fluid-phase behavior of aqueous solutions of a variety of linear, branched, and cyclic amines. New group interactions are developed in order to model the mixtures of interest, including the like and unlike interactions between alkyl primary, secondary, and tertiary amine groups (NH 2 , NH, N), cyclic secondary and tertiary amine groups (cNH, cN), and cyclic methine-amine groups (cCHNH, cCHN) with water (H 2 O). The group-interaction parameters are estimated from appropriate experimental thermodynamic data for pure amines and selected mixtures. By taking advantage of the group-contribution nature of the method, one can describe the fluid-phase behavior of mixtures of molecules comprising those groups over broad ranges of temperature, pressure, and composition. A number of aqueous solutions of amines are studied including linear, branched aliphatic, and cyclic amines. Liquid-liquid equilibria (LLE) bounded by lower critical solution temperatures (LCSTs) have been reported experimentally and are reproduced here with the SAFT-γ Mie approach. The main feature of the approach is the ability not only to represent accurately the experimental data employed in the parameter estimation, but also to predict the vapor-liquid, liquid-liquid, and vapor-liquid-liquid equilibria, and LCSTs with the same set of parameters. Pure compound and binary phase diagrams of diverse types of amines and their aqueous solutions are assessed in order to demonstrate the main features of the thermodynamic and fluid-phase behavior.

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“…Эти уравнения использовались для корреляции значений коэффициентов активности компонентов в системах, образованных гексеном-1 с алкиламинами [ 4 ]. Из данных табл.…”

Section: экспериментальные данныеunclassified

Равновесие Жидкость–пар В Бинарных Системах, Содержащих Олефины 1. РАВНОВЕСИЕ ЖИДКОСТЬ–ПАР В БИНАРНЫХ СИСТЕМАХ, ОБРАЗОВАННЫХ Н-Гексеном-1 С МЕТАНОЛОМ, ЭТАНОЛОМ, ИЗОПРОПАНОЛОМ И ПРОПАНОЛОМ

Eisen¹,

Kudrjavtseva²,

Viit³

1969

Eesti NSV Teaduste Akadeemia Toimetised. Keemia. Geoloogia

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Vapor-liquid equilibrium at 60.degree. for n-hexane-alkyl amines and 1-hexene-alkyl amines

Cited by 38 publications

References 3 publications

Vapor-liquid equilibriums of the ternary system acetone-chloroform-2,3-dimethylbutane

Vapor-liquid equilibriums of the ternary system acetone-chloroform-2,3-dimethylbutane

Description of the thermodynamic properties and fluid‐phase behavior of aqueous solutions of linear, branched, and cyclic amines

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