铷、钾在树脂及天然斜发沸石上的吸附行为研究  

Adsorption Behavior of Rubidium and Potassium on Resin and Natural Clinoptilolite

作　　者：赵旭[1] 郝晓翠[1] 董泽亮[1] 张文燕[1] 宋达[1] 张琦[1] 黄西平[1] 

机构地区：[1]国家海洋局天津海水淡化与综合利用研究所,天津300192

出　　处：《盐科学与化工》2017年第3期44-46,共3页Journal of Salt Science and Chemical Industry

基　　金：国家青年科学基金项目(21506042);中央级科研院所基本科研业务费团队项目(K-JBYWF-2015-T06)

摘　　要：研究了D001、001×7阳离子交换树脂,WZ-300、WZ-301螯合树脂和天然斜发沸石对铷的静态吸附规律,优选出具有较快吸附速率与饱和吸附量的D001阳离子交换树脂,并开展了该树脂对RbCl、KCl混合溶液的动态吸附与解吸实验,研究表明0.01 mol/L RbCl与KCl初始浓度、5.7 m L/min流速条件下,铷和钾的饱和吸附量分别为2.28 mmol/g和1.81 mmol/g,分离效果随初始溶液中钾离子含量的升高而降低。采用2 mol/L HCl进行洗脱可实现树脂的再生,铷和钾的解吸率分别为86.9%与89.1%。The static adsorption experiment of rubidium was carried out using D001 , 001 × 7 cation exchange resin, WZ - 3 0 0 , WZ - 301 chelating resin and natural clinoptilolite. D001 cation exchange re s in showed satisfactory adsorption rate and capacity. In the following dynamic experiment of D001 , the adsorption capacity of rubidium and potassium was 2. 28 mmol /g and1.81 mmol /g respectively under the condition of 5. 7 mL/min, 0. 01 mol /L RbCl and KC1 initial concentration. The separation effect of rubidium and potassium deteriorated when potassium ion concentration increased. D001 cation exchange resin could be regenerated by 2 mol /L HCl, the desorption ratio of rubidium and potassium was 86.9% and 89.1% respectively.

关 键 词：铷 阳离子交换树脂 螯合树脂 天然斜发沸石 

分 类 号：TQ131.14[化学工程—无机化工] TQ131.13