摘要
实验测定了离子液体([EPy]BF4)-碳酸钠(Na2CO3)-H2O双水相体系在298.15 K时液液相平衡数据。采用Merchuk方程关联双节线数据,相关系数达到0.995 9;采用Cashmere-Tobias和Bancroft方程关联系线数据,其相关系数分别为0.926 9和0.923 2。实验测定了系统、完整、准确的双水相体系相图数据,并用有效排除体积(EEV)评估了碳酸钠的盐析能力,为设计双水相萃取提供了数据基础。
The phase diagrams and the liquid-liquid equilibrium （LLE） data of the [ EPy] BF4-Na2CO3-H2O aqueous two-phase system （ATPS） at 298.15 K were experimentally determined. By using Merchuk equation to correlate the binodal data, the correlation coefficient comes up to 0. 995 9 ; by using Cashmere-Tobias and Bancroft equations to correlate the tie line data, the correlation coefficients come up to 0. 926 9 and 0. 923 2. The systematic, complete and accurate double-water phase system diagram data were determined. Also, with effective excluded volume （EEV） , the salting out ability of sodium carbonate was evaluated, thus providing the data base for the design of double-water phase extraction.
出处
《化学工程》
CAS
CSCD
北大核心
2013年第3期42-45,共4页
Chemical Engineering(China)
基金
国家自然科学基金资助项目(20777029)
教育部博士点基金项目(200807100004)
中央高校基本科研业务费专项资金项目(CHD2011JC094
CHD2012JC063)
