Physicochemical and Mathematical Modeling of Phase Separation Processes in Decane-(R_4N)_2[Nd(NO_3)_5] -Aliphatic Alcohol Ternary Liquid Systems

摘要

Phase diagrams of decane-(R_4N)_2[Nd(NO_3)_5]- aliphatic alcohol ternary liquid systems (TLS) at 298.15 K are presented. The (R_4N)_2[Nd(NO_3)_5]-C_(10)H_(22) binary system is a two-phase liquid system. One of the phases is an almost "pure" hydrocarbon solvent, whereas the other one is enriched with (R_4N)_2[Nd(NO_3)_5]. TLS have areas of homogeneous and two-phase liquid solutions. One of the phases is enriched with (R_4N)_2[Nd(NO_3)_5] and n-octanol (n-butanol, n-decanol); the other one is enriched with C_(10)H_(22). Using the data on the mutual solubility in (R_4N)_2[Nd(NO_3)_5]-C_(10)H_(22) binary systems and TLS, as well as the equations of the NRTL model, the intermolecular interaction parameters and excess Gibbs energies (g~E) for binary and ternary liquid systems along the tie line have been calculated