Abstract:

The adsorption of silicalite-1 to acetone, butanol and ethanol in the acetone-water, butanol-water, and ethanol-water binary mixtures, and acetone-butanol-water and ethanol-butanol-water ternary mixtures was investigated.With the home-made silicalite-1/silicone rubber hybrid pervaporation membranes, pervaporation separation of butanol-water, acetone-water, ethanol-water binary solutions was examined at different temperature.The effects of acetone and ethanol on pervaporation separation of butanol were studied at different concentration and temperature.The experimental results showed that the membrane permeability of butanol would increase in the presence of acetone and ethanol.

Key words:

渗透汽化, 丙酮-丁醇-乙醇, 膜, silicalite-1

摘要：

考察了全硅沸石silicalite-1对丁醇-水、丙酮-水、乙醇-水、丙酮-丁醇-水、乙醇-丁醇-水5种体系中各溶剂的吸附作用。采用自制的silicalite-1/硅橡胶杂化渗透汽化透醇膜，研究了温度对丙酮、丁醇、乙醇分离性能的影响以及不同分离温度下丙酮、乙醇的浓度对丁醇、水渗透汽化性能的影响, 结果表明丙酮和乙醇的存在会促进丁醇的透膜性。

关键词:

渗透汽化, 丙酮-丁醇-乙醇, 膜, silicalite-1