交联聚乙烯醇膜渗透蒸发分离乙二醇－水混合物的溶解选择性与渗透选择性的关系  

Separation of Water-Ethylene Glycol Using Crosslinked PVA Membrane:Relationship between the Selective Sorption and the Selective Permeation

作　　者：陈俸荣[1] 陈洪钫[1] 

机构地区：[1]天津大学化工系,清华大学化工系

出　　处：《高校化学工程学报》1996年第2期190-195,共6页Journal of Chemical Engineering of Chinese Universities

摘　　要：交联聚乙烯醇膜渗透蒸发分离乙二醇－水混合物的溶解选择性与渗透选择性的关系陈俸荣，陈洪钫（天津大学化工系，天津３０００７２）关键词渗透蒸发，溶解选择性，渗透选择性，交联聚乙烯醇，乙二醇－水溶液１引言在渗透蒸发膜分离机理的研究中，存在着不同的观点［１－５...The sorption equilibrium and pervaporation experiments for the system water-ethylene glycol/crosslinked poly(vinyl alcohol) at various temperatures have been investigated.The experimental data of preferential sorption have been compared with that of preferential permeability and the comparison results indicate that,apart from the effect of differences in sorption for the permeating components,the differences in diffusivity contribute a major extent to selective transport.

关 键 词：渗透蒸发 渗透选择性 乙二醇 水溶液 膜分离 

分 类 号：O623.413[理学—有机化学] TQ028.8[理学—化学]