应用化学 ›› 1991, Vol. 0 ›› Issue (1): 55-59.

• 研究论文 • 上一篇    下一篇

渗透气化法分离水-乙醇混合物——选择溶解与渗透气化的关系

张玉忠, 张可达, 徐纪平   

  1. 中国科学院长春应用化学研究所, 长春 130022
  • 收稿日期:1989-11-15 修回日期:1990-04-28 出版日期:1991-02-10 发布日期:1991-02-10
  • 基金资助:
    国家自然科学基金

SEPARATION OF H2O/EtOH MIXTURE BY PERVAPORATION:THE RELATIONSHIP BETWEEN THE SELECTIVE SORPTION AND PERVAPORATION

Zhang Yuzhong, Zhang Keda, Xu Jiping   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1989-11-15 Revised:1990-04-28 Published:1991-02-10 Online:1991-02-10

摘要: 本文对热交联,氢氧化钠交联及辐射交联聚乙烯醇膜的溶胀行为进行了研究。整个选择性渗透过程被分解成选择溶解和选择扩散两部分。本文定义了选择溶解因子和选择扩散因子,用以评价上述两部分各自对渗透气化过程的贡献。

关键词: 渗透气化, 膜, 乙醇和水的分离

Abstract: The swelling process of the heat, alkali-, and radiation crosslinked PVA membraneswas investigated.The pervaporation process was divided into two parts: selective sorptionand selective diffusion.The contribution of the two parts respectively into the pervaporationwas evaluated with the selective sorption factor and the selective diffusion factor.

Key words: pervaporation, membranes, separation of ethanol and water