水-硫酸铜-乙二醇单丁醚体系相平衡研究
来源期刊:中南大学学报(自然科学版)1989年第3期
论文作者:张多默 陈慧光 陈文汨 罔田茂 矢泯彬
文章页码:260 - 267
关键词:水; 硫酸铜; 乙二醇醚(9); 相平衡; 结晶/乙二醇单丁醚
Key words:Water; Copper sulphate; Ethylene glycol ether; phase equilibrium/2-butoxyethanol
摘 要:测定了硫酸铜对水-乙二醇单丁醚体系分相温度的影响以及水-硫酸铜-乙二醇单下醚三元系在330K,313K,303K,293K,283K及274K的等温相图,讨论了利用具有低临界会溶温度的水-有机溶媒体系进行节能结晶分离的可能性。
Abstract: The effect of copper sulfate on phase-splitting temperature of the water-2-bu- toxyethanol system has been studied and the isothermal phase diagrams of the wa- ter-copper sulfate-2-butoxyethanol system at 330 K, 313 K, 303 K, 293 K, 283 K and 274 K have been worked out. From the results obtained, an energy-saving crystallization method to separate inorganic salt from aqueous solution has been proposed.