甲醛－水渗透蒸发膜分离  

Separation of Formaldehyde-water Mixture. by Pervaporation

作　　者：倪秀元[1] 许振良[1] 施亚钧[1] 

机构地区：[1]华东理工大学化学工程研究所

出　　处：《高校化学工程学报》1994年第3期264-270,共7页Journal of Chemical Engineering of Chinese Universities

基　　金：国家化学工程重点实验室资助

摘　　要：制备了乙烯共聚醋酸乙烯酯复合膜和聚酰亚胺均相致密膜，研究了这两种膜与全氟磺酸型离子交换膜的渗透蒸发分离性能。实验测得最大分离系数α＝２７４，并发现料液的甲醛浓度增加，膜的分离系数提高。The EVA composite membrane and PEI dense homogeneous membrane were developed. With the above membranes and perfluorinated ionexchange membrane, the pervaporation's data of liquid formaldehyde-water mixture were also tested. The maximum separation factor α= 274 was obtained. It was found that, the separation factor was enhanced while the feed concentration of formaldehyde increasing.

关 键 词：甲醛水溶液 膜分离 渗透 蒸发 

分 类 号：TQ028.8[化学工程]