微通道反应器内合成高纯度碘化钾  

Synthesis of Potassium Iodide in Micro-channel Reactor

作　　者：凌芳 宋忠哲 薛循育 刘清龙 

机构地区：[1]国药集团化学试剂有限公司,上海200002

出　　处：《化学试剂》2017年第7期773-775,共3页Chemical Reagents

基　　金：国家科技支撑项目(2015BAK44B01)

摘　　要：利用微通道反应器,研究了氢碘酸、甲酸溶液及氢氧化钾合成碘化钾的反应,考察了反应温度、原料配比、停留时间对碘化钾产率的影响。获得了较优的反应工艺条件,反应温度为85℃、停留时间为30 s、m(氢碘酸)∶m(甲酸)=54%、m(氢氧化钾)∶m(水)=31%。在该优化工艺条件下,碘化钾的产率为97%,产品纯度达到99%。实验结果表明,该方法具有反应时间短、产品收率高、绿色环保等优点。The synthesis reaction of potassium iodidewas carried out in micro-channel reactor with hydroiodic acid,formic acid and potassium hydroxide.The reaction temperature,material ratio and residence time were investigated on the yield of potassium iodide.The optimum reaction conditions：the reaction temperature is 85 ℃,residence time of 30 s,m（hydriodide）∶m（formic acid）=54%,m（KOH）∶m（water）=31%.In the optimum conditions,the yield of potassium iodide is 97% and the product purity is 99%.This method has advantages of short reaction time,high product yield and green environment.

关 键 词：碘化钾 微通道反应器 氢氧化钾 

分 类 号：TQ124.6[化学工程—无机化工]