高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (12): 1435.

• 研究论文 • 上一篇    下一篇

用聚丙烯磺酸盐膜渗透蒸发分离乙醇/水混合物的研究

徐迎宾, 林少琨, 林尚安   

  1. 中山大学高分子研究所, 510275
  • 收稿日期:1990-09-11 出版日期:1990-12-24 发布日期:1990-12-24
  • 通讯作者: 林尚安
  • 基金资助:

    高等学校博士学科点专项科研基金

Studies on Pervaporation Separation of Ethanol/Water Mixture with Membranes of Polypropylene Sulfonate Salts

Xu Yin-bin, Lin Shao-kun, Lin Shang-an   

  1. Institute of Polymer Science, Zhongshnan University, Guangzhou, 510275
  • Received:1990-09-11 Online:1990-12-24 Published:1990-12-24

摘要: 通过聚丙烯膜进行非均相氯磺化反应,对其产物进一步水解和离子交换,得到具有不同反离子的聚丙烯磺酸盐膜。应用渗透蒸发法进行乙醇/水混合物的分离。研究了反离子的种类、膜离子交换容量、混合液的组成、膜厚度和实验温度等对该分离膜的分离特性(即分离系数和通量)的影响。并用X射线衍射法和扫描电子显微镜研究了膜结构和形态。

关键词: 聚丙烯磺酸盐, 渗透蒸发, 分离系数, 通量, 离子交换容量

Abstract: Sulfonated polypropylene membranes loaded with different kinds of counter-ions were prepared by heterogenous chlorosulfonation reaction of polypropylene membrane followed by hydrolysis and ion-exchange reaction. The membranes were used for selective separation of ethanol/water mixture by pervaporation. The effects of counter-ion species, ion-exchange capacity, solution composition, thickness of membrane and temperature on the separation behavior of the membrane were investigated. Micro-structure and morphology of the membrane were examined by X-ray and SEM.

Key words: Polyropylene sulfonate salt, Pervaporation, Separation factor, Flux, Ion-exchange capacity

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