摘要
采用两室型双极膜电渗析从羟乙基哌嗪乙磺酸钠中制备羟乙基哌嗪乙磺酸,考察了双极膜电渗析过程中操作电压、电流效率、能耗等技术指标的影响。实验结果表明:在25 V的操作电压下,羟乙基哌嗪乙磺酸的纯度可达到96%以上,平均能耗为4.3 k Wh/kg,平均电流效率可达到68%。
Hdroxyethyl piperazine ethanesulfonic acid （HEPES） was prepared from sodium hydroxyethyl piperazine ethane- sulfonic acid solution in two champers type bipolar membrane eleetrodialysis. The effects of bipolar membrane eleetrodialysis process parameters were investigated, such as operating voltage, current density, and energy consumption. Experimental results indicated that the purity of HEPES could reach above 96% under the operating voltage of 25 V, the average energy consumption was 4.3kWh/kg and the average current efficiency could reach 68%.
出处
《过滤与分离》
CAS
2016年第2期8-11,共4页
Journal of Filtration & Separation
关键词
双极膜
电渗析
羟乙基哌嗪乙磺酸
bipolar membrane
electrodialysis
hydroxyethyl piperazine ethanesulfonic acid
