摘要
选用３ 种有机溶剂甲醇、乙醇和丙酮，结晶分离水溶液中的溴化钾。研究证实：这３ 种溶剂均能有效地分离水溶液中的溴化钾，甲醇的分离效果优于乙醇和丙酮，当沉淀分数ｆ ＜ ０９时，定量方程ｆ ＝ Ｋｌｎ（Ｖ／Ｖｃ）可相当精确地描述实验结果，此方程可作为工程设计的依据。
Three organic solvents,methanol,ethanol and acetone are selected to separate KBr from the aqueous solution.It shows that KBr in aqueous solution can be separated effectively by methanol,ethanol and acetone,and the separating effect of methanol is better than that of other two.The experimental result can be described quite accurately by the equation f=K ln (V/V c ),for f<0.9.The above equation can act as a basis of engineering design.
出处
《无机盐工业》
CAS
1999年第5期25-26,共2页
Inorganic Chemicals Industry
关键词
结晶
分离
溶剂析出
溴化钾
有机溶剂
crystallization
separation
solventing out
potassium bromide
