摘要
测定了正丁醇-水-氟化钾体系在25℃时的液-液相平衡数据,以Pitzer理论和Wilson方程对液-液相平衡数据进行了关联计算,计算值与实测值接近,水相和有机相的绝对平均偏差分别为0.72%和0.56%。考察了氟化钾水溶液与制药废液质量比对脱水率的影响,结果表明,当质量分数为60%的氟化钾水溶液与该废液的质量比为0.75时,脱水率高达91.38%,将有机相进行精馏可得到质量分数为99.50%的正丁醇,水相中氟化钾稀溶液经蒸发回收后循环使用不影响分离性能。
The liquid-liquid equilibrium data for n-butanol-water-KF system were measured at 25 ℃ and calculated by means of the Pitzer theory close to the experimental data and the average phase were 0.72% and 0.56%, respectively. and the Wilson equation. absolute deviations for the The calculated results were water phase and the organic The effect of the mass ratio of potassium fluoride solution to the waste pharmaceutical liquor on the dehydration rate was also studied. The dehydration rate was as high as 91.38% when the mass ratio of the potassium fluoride solution with 60.00% of mass fraction to the waste pharmaceutical liquor was 0.75. n-Butanol with 99.50% of mass fraction was obtained via distillation of the organic phase. The dilute potassium fluoride solution in the aqueous phase was concentrated by evaporation for recovery and recycling.
出处
《精细石油化工》
CAS
CSCD
北大核心
2011年第5期20-23,共4页
Speciality Petrochemicals
基金
山东省科技厅自然基金项目(编号Y2008B24)
关键词
氟化钾
正丁醇
制药废液
盐效萃取
potassium fluoride
solvent recoveryg
n-butanol
waste pharmaceutical liquor
