当前位置: X-MOL 学术J. Chem. Eng. Data › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Ammonium-Based Ionic Liquid as an Entrainer for the Separation of n-Propanol + Water and Isopropanol + Water Mixtures
Journal of Chemical & Engineering Data ( IF 2.6 ) Pub Date : 2018-02-09 00:00:00 , DOI: 10.1021/acs.jced.7b00523
V. K. P. Janakey Devi 1 , P. S. T. Sai 1 , A. R. Balakrishnan 1
Affiliation  

The effect of the ionic liquid tetramethylammonium chloride [TMACl] on the vapor–liquid equilibrium of n-propanol + water and isopropanol + water was studied experimentally. The ionic liquid [TMACl] was identified as a suitable entrainer for breaking the azeotrope of these two alcohol–water mixtures. This work reports the influence of an ammonium-based ionic liquid on the separation of azeotropic mixtures. The isobaric vapor liquid equilibrium data of n-propanol + water + [TMACl] and isopropanol + water + [TMACl] were measured at atmospheric pressure. The amount of [TMACl] required for eliminating the azeotrope for both the systems was found to be low compared to imidazolium ionic liquids reported earlier. For n-propanol + water system, the azeotrope was eliminated at [TMACl] mole fraction of 0.05, and for isopropanol + water system, the azeotrope was eliminated at a mole fraction of 0.026. The effect of [TMACl] on both the alcohol–water systems was explained in terms of relative volatility and activity coefficient.

中文翻译:

铵为基础的离子液体作为夹带剂用于分离Ñ丙醇+水和异丙醇+水混合溶剂

实验研究了离子液体氯化四甲基铵[TMACl]对正丙醇+水和异丙醇+水的气液平衡的影响。离子液体[TMAC1]被认为是打破这两种醇水混合物的共沸物的合适夹带剂。这项工作报告了铵基离子液体对共沸混合物分离的影响。的等压汽液平衡数据Ñ丙醇+水+ [TMACl]和异丙醇+水+ [TMACl]在大气压下测量的。与早先报道的咪唑鎓离子液体相比,发现两个系统消除共沸物所需的[TMAC1]量低。对于n-丙醇+水体系,以[TMAC1]摩尔分数为0.05消除了共沸物,而对于异丙醇+水体系,以0.026的摩尔分数消除了共沸物。[TMAC1]对酒精-水系统的影响都用相对挥发性和活度系数来解释。
更新日期:2018-02-09
down
wechat
bug