Solubilities of MBr(M=Na,K)in aqueous systems containing ionic liquid[Bmim]Br

REN Yingqian; LU Yiqun; PENG Changjun; LIU Honglai

doi:10.3969/j.issn.0438-1157.2012.10.001

您当前的位置：

首页 >

文章列表页 >

Solubilities of MBr(M=Na,K)in aqueous systems containing ionic liquid[Bmim]Br

更新时间：2025-12-10

- Solubilities of MBr(M=Na,K)in aqueous systems containing ionic liquid[Bmim]Br
- CIESC Journal Issue 10, Pages: 3011-3016(2012)
- 作者机构：
  
  华东理工大学化学系, 化学工程联合国家重点实验室,上海,200237
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2012.10.001
  CLC： Q013.1
- Online First：05 October 2012，
  
  Published：05 October 2012
- 稿件说明：
移动端阅览
REN Yingqian, LU Yiqun, PENG Changjun, et al. Solubilities of MBr(M=Na,K)in aqueous systems containing ionic liquid[Bmim]Br[J]. CIESC Journal, 2012, (10): 3011-3016.
DOI：

REN Yingqian, LU Yiqun, PENG Changjun, et al. Solubilities of MBr(M=Na,K)in aqueous systems containing ionic liquid[Bmim]Br[J]. CIESC Journal, 2012, (10): 3011-3016. DOI： 10.3969/j.issn.0438-1157.2012.10.001.

摘要

为探索溴化1-丁基-3-甲基咪唑([Bmim]Br)离子液体对无机溴化物MBr(M=Na

K)在水中溶解度的影响

采用等温溶解平衡法在常压下测定了298.15~328.15 K范围内MBr在[Bmim]Br(1)+H2O(2)溶液中的溶解度

考察了离子液体含量对溶解度的影响。实验结果表明

[Bmim]Br的加入会显著降低MBr(M=Na

K)在水中的溶解度

离子液体[Bmim]Br对KBr的盐析作用比对NaBr的盐析作用大。不同温度下的溶解度数据可用Pitzer混合电解质溶液模型进行关联

得到了混合离子相互作用参数以及MBr在混合溶剂中的平均活度因子和溶剂的渗透系数。模型计算的溶解度与实验结果吻合良好

平均活度因子和溶剂的渗透系数均随离子液体含量的增加而增加。

Abstract

In order to understand the effect of ionic liquid 1-butyl-3-methylimidazolium bromides([Bmim]Br)on the solubility of bromides MBr(M=Na

K)in aqueous solutions

isothermal solubilities of MBr in[Bmim]Br(1)+H2O(2)systems were measured in a temperature range of 298.15 K to 328.15 K at atmospheric pressure.It was found that the addition of [Bmim]Br triggered a remarkable decrease of salt solubilities in aqueous solutions.The results also showed that[Bmim]Br had more evident salting-out effect on KBr than NaBr.The solubility data were correlated and calculated with the Pitzer model.The interaction parameters of the mixed electrolyte solutions

the average activity coefficients of MBr in mixed solutions

and the osmotic coefficients of solvent were obtained by using experimental results.The Pitzer model gave a satisfactory prediction for the solubilities of KBr and NaBr in aqueous systems containing ionic liquid [Bmim]Br.Both the average activity coefficients of MBr in mixed solutions

and the osmotic coefficients of solvent increased with increasing ionic liquid concentration.

关键词

Keywords

references

Views

297

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Study on crystallization separation of ursolic acid and oleanolic acid in ionic liquid

Experimental measurement and theoretical calculation of solubility and diffusion coefficient of R1233zd(E) in [HMIM][PF6]

Carbon dioxide absorption in 1-aminopropyl-3-methylimidazolium bromide aqueous solutions

Preparation of 3.5-valent vanadium electrolyte via ammonia gas-phase reduction

Predictive model on gas solubility in water-rich phase coexisted with gas hydrates

Related Author

GAO Yi

CAO Yahui

FAN Jieping

Manh Quang NGUYEN

Xiangyang LIU

Maogang HE

YANG Tao

BI Yin

Related Institution

School of Resource, Environmental and Chemical Engineering, Nanchang University

Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, Xi’an Jiaotong University, , Shaanxi

School of Engineering, Sun Yat-Sen University

School of Environmental and Chemical Engineering, Dalian University

National Engineering Research Center for Green Recycling of Strategic Metal Resources, Institute of Process Engineering, Chinese Academy of Sciences

⁰