中华医学超声杂志

应用化学 ›› 1994, Vol. 0 ›› Issue (3): 21-25.

• 研究论文 • 上一篇    下一篇

填充Silicalite－Ⅰ沸石的PDMS橡胶醇－水分离膜

陈新1, 平郑骅1, 丁雅娣1, 龙英才2   

  1. 1. 复旦大学高分子科学系 上海 200433;
    2. 复旦大学化学系 上海
  • 收稿日期:1993-10-04 修回日期:1994-01-15 出版日期:1994-06-10 发布日期:1994-06-10
  • 基金资助:
    国家自然科学基金资助课题

Silicalite-ⅠFilled PDMS Rubber Membranes for Ethanol-Water Separation

Chen Xin1, Ping Zhenghua1, Ding Yadi1, Long Yingcai2   

  1. 1. Department of Macromolecular Science, Fudan University, Shanghai 200433;
    2. Department of Chemistry, Fudan University, Shanghai
  • Received:1993-10-04 Revised:1994-01-15 Published:1994-06-10 Online:1994-06-10

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摘要： Silicalite-Ⅰ沸石经过酸处理或水热处理可完善其晶体结构,提高对乙醇的吸附选择性,由此提高对乙醇-水混合物的分离系数。特别是先经过酸处理再经过水热处理的Silicalite-Ⅰ沸石填充聚二甲基硅氧烷橡胶膜(PDMS橡胶膜),乙醇-水的分离系数可达30左右。

关键词: Silicaiite－Ⅰ沸石, 改性处理, 聚二甲基硅氧烷橡胶膜, 醇－水分离, 渗透蒸发

Abstract: The crystal structure of silicalite-Ⅰ zeolite could be improved by acid and/or hydrothermal treatments. The adsorption selectivity as well as the separation factor for ethanol-water mixture were found to be increased by such a treatment.Especially,the silicalite-Ⅰobtained after successive acid and hydrothermal treatments filled polydimethylsiloxane rubber membranes showed a separation factor for ethanol-water mixture up to 30.

Key words: silicalite, polydimethylsiloxane membrane, ethanol-water separation, pervaporation

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