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COMPOSITE MEMBRANE FOR SEPARATING WATER FROM FLUIDS CONTAINING ORGANIC COMPOUNDS BY PERVAPORATION
COMPOSITE MEMBRANE FOR SEPARATING WATER FROM FLUIDS CONTAINING ORGANIC COMPOUNDS BY PERVAPORATION
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机译:通过渗透从含有机化合物的液体中分离水的复合膜
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摘要
The composite membrane described has an interface layer made of cross-linked polyvinyl alcohol which is subjected to a second cross-linking process with acids which act in the vapour phase on the polyvinyl alcohol layer. Preferred acids are those of the hydrogen halides, sulphurous acid, sulphuric acid, nitrous acid, nitric acid and acetic acid.
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