期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 273, 期 -, 页码 606-614出版社
ELSEVIER
DOI: 10.1016/j.molliq.2018.09.104
关键词
Ionic liquid; Additive; Phase equilibria; (LiBr plus water); Solubility; Crystallization temperature
资金
- Ministry of Science and Higher Education [0379/IP3/2016/74]
In this work, nine ILs are investigated as anti-crystallization additives to (LiBr + water) binary systems conventionally used as a working pair in absorption refrigeration technology. The solubility of {LiBr (1) + IL (2) + water (3)} ternary systems within wide temperature and composition range was determined by the dynamic method. In this work, the following ILs: 1-ethyl-1-methylmorpholinium bromide,[C1C2MOR][Br], 1-butyl-1-methyl-morpholinium bromide, [C1C4MOR][Br], 1-hexyl-1-methylmorpholinium bromide, [C1C6MOR][Br], 1-butyl-3-methylimidazolium bromide, [C1C4IM][Br], 1-ethyl-1-methyl-piperidinium bromide, [C1C2PIP][Br], 1-butyl-1-methylpiperidinium bromide, [C1C4PIP][Br], 1-butyl-1-methyl-pyrrolidinium bromide, [C1C4 PYR][Br], 1-butylpyridinium bromide, [C4Py][Br] and tri(ethyl)-butylammonium bromide, [N-2,N-2,N-2,N-4][Br] were investigated. The experimental (solid + liquid) phase equilibria have been determined for different IL to LiBr mass fractions from w(2) = (0.1 to 0.3). For all of the tested system, the transition point between lithium bromide dihydrate and monohydrate form was observed. Additionally, the simple model based on the multicomponent Redlich-Kister equation and a reference state of pure chemical compounds was used to successfully describe solubility of lithium bromide in aqueous systems containing an ionic liquid. The influence of ILs cation's core on the crystallization temperature of aqueous lithium bromide system was discussed and the best IL as an anti-crystallization additive has been proposed. (C) 2018 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据