α-癸基甜菜碱两性表面活性剂的电渗析脱盐  

Experimental investigation of electrodialysis desalination of α–capric betaine zwitterionic surfactant

作　　者：马娜 齐丽云 王泽云[2] 方云 

机构地区：[1]江南大学化学与材料工程学院,江苏无锡214122 [2]大连理工大学精细化工国家重点实验室

出　　处：《化工进展》2008年第6期896-899,共4页Chemical Industry and Engineering Progress

基　　金：十一五国家重点支撑计划(2007BAE52B01)

摘　　要：采用电渗析法对油脂基两性表面活性剂α–癸基甜菜碱进行脱盐纯化,考察了操作电压、淡室流量、溶液pH值等操作条件对电渗析脱盐的影响。实验表明,电渗析可有效脱除两性表面活性剂中的无机盐,在α–癸基甜菜碱两性表面活性剂的等电点pH值7.50,操作电压10 V,淡室流量20 L/h的条件下,α–癸基甜菜碱粗产品脱盐率达到92%,回收率92.3%。The electrodialysis desalination of a crude fatty-based zwitterionic surfactant α-capric betaine was investigated. The effect of operation voltage, flow rate and pH of the solution on the electrodialysis desalination of the zwitterionic surfactant was also studied. The experiment results showed that the inorganic salts existing in the zwitterionic surfactant solution could be removed effectively. It was found that under an optimum operating condition, pH value 7.50 （at the isoelectric point of α-capric betaine）, operation voltage 10 V, and flow rate 20 L/h, the desalination efficiency was 92% and the recovery of α-capric betaine was 92.3%.

关 键 词：两性表面活性剂 α–癸基甜菜碱 电渗析 脱盐 等电点 操作电压 淡室流量 

分 类 号：TQ028.8[化学工程]