Flat sheet membrane equipment spiral-wound membrane equipment Ceramic membrane / Tube membrane equipment Hollow fiber membrane / MBR equipment Disk-tube membrane (DTRO) equipment Continuous ion-exchange(SMB)/Chromatographic separation equipment Forward osmosis(FO)/Continuous dialysis equipment Electrodialysis(ED)/ Bipolar membrane electrodialysis(BMED) equipment Customized experimental equipment Membrane selection and other Membrane performance testing equipment
Membrane separation Continuous ion-exchange / Chromatographic separation Electrodialysis(ED)/ Bipolar membrane electrodialysis(BMED) Equipment accessories / consumables Customized engineering equipment
Application area Engineering case Industry information Membrane separation technology
Service commitment Instructions to Customers Matters need attention
离子交换技术已广泛应用于稀有、贵金属回收、重金属去除、钾盐制备、盐湖卤水提锂、稀有元素钒的富集与分离、钼的提取与分离、稀土元素分离、同位素分离等领域。相比于传统固定床或者模拟移动床工艺,连续离子交换技术在运行成本、能耗消耗、废水减排等领域有着明显的优势。
以从烟气中提取高铼酸铵为例,生产工艺如下:
钨金矿焙烧后产生的烟气经过淋洗塔的水洗冷却,烟气中含有的高铼酸溶于水中,溶有高铼酸的水溶液循环对焙烧烟气进行淋洗,可以使高铼酸的浓度得到富集。收集高铼酸水溶液,过滤后将滤液用纳滤膜设备对水溶液进行浓缩 ;浓缩后的高铼酸水溶液通过装填有吸附剂的FM-Sep连续离子交换设备,用解析剂对铼进行洗脱,将收集到的洗脱液于 100℃下加热浓缩,冷却、结晶,便得到了高铼酸铵。
采用上述技术方案以钨金矿焙烧后产生的烟气为原料,利用纳滤膜设备和连续离子交换设备来回收高铼酸铵,达到了资源回收利用,保护环境的目的,具有良好的经济价值和环境效益。
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②技术指标:
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