利用氟化钾从制药废液中回收正丁醇  

RECOVERY OF n-BUTANOL FROM WASTE PHARMACEUTICAL LIQUOR BY POTASSIUM FLUORIDE

作　　者：孙武 许文友[2] 

机构地区：[1]山东石大胜华化工集团股份有限公司,山东东营257061 [2]烟台大学化学化工学院,山东烟台264005

出　　处：《精细石油化工》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)

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.

关 键 词：氟化钾 正丁醇 制药废液 盐效萃取 

分 类 号：TQ028.4[化学工程]