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Citation: Zhang Keda, Liu Nan'an. PERVAPORATION OF DILUTE AQUEOUS SOLUTIONS OF ORGANIC COMPOUNDS THROUGH ORGANOSILICONE POLYMER MEMBRANES[J]. Chinese Journal of Applied Chemistry, ;1992, 9(5): 29-33. shu

PERVAPORATION OF DILUTE AQUEOUS SOLUTIONS OF ORGANIC COMPOUNDS THROUGH ORGANOSILICONE POLYMER MEMBRANES

Zhang Keda ^, ,
Liu Nan'an

1.
Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022

Corresponding author: Zhang Keda,
Received Date: 1 June 1991
Available Online: 7 September 1991
Fund Project:

Pervaporation of dilute aqueous binary mixtures of four organic compounds (acetone A,butanone B,ethanol E and isopropanol P) through silicone rubber (PDMS) and its modifications was investigated. The experimental results showed that an increase in temperature increased the flux exponentially but it had little effect on the selectivity of membrane,Flux and selectivity has the order of A > B > E > P and A > B > P > E respectively.Both properties were increasingly improved when the(CH₃)₂SiO content in the membrane raised from 70% to 100%.
- pervaporation,
- membrane,
- silicone rubber,
- acetone,
- ethanol,
- butanone,
- iso propanol
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