Thermodynamics of amine mixtures. Systems formed by alkyl-amine and ether, or N,N-dialkylamide, or ethanenitrile
作者： Juan Antonio González , Fernando Hevia , Isaías García de la Fuente , José Carlos Cobos , Karine Ballerat-Busserolles
DOI: 10.1016/J.MOLLIQ.2020.112907
关键词:
摘要: Abstract Systems of the type linear primary or secondary amine + cyclohexane, or + polar compound (namely, cyclic monoether, + 1,4-dioxane, N,N-dialkylamide, or + ethanitrile) have been investigated using literature data, and by means DISQUAC. Interaction parameters for contacts amine/ether, amine/amide amine/nitrile are provided. For a given contact, QUAC interchange coefficients remain practically constant along each homologous series. A similar trend has encountered in other many previous studies. DISQUAC correctly describes excess molar enthalpies, H m E , vapour-liquid solid-liquid equilibria studied mixtures improves calculations on from UNIFAC (Dortmund) model. The experimental data used to determine enthalpy interactions between unlike molecules, which stronger systems with N,N-dialkylamides ethanenitrile than ethers. On hand, it is shown that values amine + C6H12 closely related amine self-association, molecules polar compounds determinant results amine + fixed fixed amine + polar (no monoether). Structural effects relevant di-n-butylamine + linear ether systems. application Flory model reveals orientational rather weak solutions. This agreement studies this ERAS
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