Activity Coefficient at Infinite Dilution Study of Molecular Interaction-Selectivity in Separation Processes
Activity Coefficient at Infinite Dilution Study of Molecular Interaction-Selectivity in Separation Processes
复制标题
无限稀释时的活度系数分离过程中分子相互作用选择性的研究
DOI:
10.1007/s10765-020-02698-5
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发表时间:
2020-07
影响因子:
2.2
通讯作者:
Wang Qiang
中科院分区:
文献类型:
--
作者:
Li Cailian;Ban Tao;Wang Qiang
The activity coefficient at infinite dilution for 47 selected organic solutes in 1-allyl-3-methylimidazolium chloride ([AMIM]Cl) ionic liquid (IL) was determined at 303.15 K to 343.15 K through inverse gas chromatography (IGC). The partial molar excess enthalpy, entropy, Gibbs free energy at infinite dilution, and Hildebrand solubility parameters were obtained from the values of activity coefficient at infinite dilution. The selectivity and capacity of heptane/thiophene, heptane/benzene and benzene/thiophene separation problems were also calculated based on the activity coefficient at infinite dilution values. The selectivity of three separation problems of [AMIM]Cl was 85.36, 30.65 and 2.79, which indicated that [AMIM]Cl is an ideal solvent for the separation of heptane/thiophene.
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