摘要
结合静态吸附和动态吸附,分别考察了静态吸附时树脂种类、吸附时间、吸附温度对Sb和Fe的脱除效果,同时考察了动态吸附后氢氧化胆碱的含水量和Sb和Fe的浓度,对动态吸附所用的离子交换树脂进行解吸循环使用。结果表明,50 mL胆碱浸泡在1.0 g D113和1.0 g Lewatit MonoPlus TP260两种树脂混合物中,在35℃的恒温振荡器上反应16 h,通过蠕动泵带动静态吸附后的胆碱溶液经过Amberlyst 15WET树脂的离子交换柱,得到胆碱中Sb和Fe的浓度分别是5μg/L和7μg/L、胆碱的含水量降低0.54%。同时动态吸附用的Amberlyst 15WET树脂经过解吸可循环使用至少5次。本实验提供了一种切实可行的脱除氢氧化胆碱中金属离子的方案。
The combined with static adsorption and dynamic adsorption,research the effection of resin type,adsorption time and adsorption temperature on Sb and Fe during static adsorption,and the water content of choline hydroxide and the concentration of Sb and Fe after dynamic adsorption were investigated,and the ion exchange resin used for dynamic adsorption was desorbed and recycled.The results showed that 50 mL choline was soaked in 1.0 g D113 and 1.0 g Lewatit MonoPlus TP260 resin,reacted on a thermostatic shaker at 35℃for 16 h,and the static adsorption choline solution was driven by a peristaltic pump through the ion exchange column of Amberlyst 15WET resin,the concentrations of Sb and Fe in choline were 5μg/L and 7μg/L,respectively,and the water content of choline was reduced by 0.54%.At the same time,Amberlyst 15WET resin for dynamic adsorption was recycled at least 5 times through the desorption class.This experiment provides a practical solution for removing metal ions from choline hydroxide.
作者
王娇
代新英
赵博雅
宋吉亮
WANG Jiao;DAI Xin-ying;ZHAO Bo-ya;SONG Ji-liang(Panjin Institute of Industrial Technology,Dalian University of Technology,Panjin 124221,China;School of Ocean Science and Technology,Dalian University of Technology,Panjin 124221,China;School of Chemical Engineering,Dalian University of Technology,Panjin 124221,China)
出处
《应用化工》
CAS
CSCD
北大核心
2023年第5期1410-1413,1419,共5页
Applied Chemical Industry
基金
辽宁省“兴辽英才”项目科技创新领军人才(XLYC1802030)
辽宁省化学助剂合成与分离省市共建重点实验室资助(ZJKF2011,ZJKF2015)。
关键词
高纯试剂
氢氧化胆碱
离子交换树脂
high-purity reagents
choline hydroxide
ion exchange resins
