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POLYIMIDE MEMBRANES FOR RECOVERY OF AROMATIC SOLVENTS UNDER HYPERFILTRATION CONDITIONS
POLYIMIDE MEMBRANES FOR RECOVERY OF AROMATIC SOLVENTS UNDER HYPERFILTRATION CONDITIONS
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机译:超滤条件下用于回收芳族溶剂的聚酰亚胺膜
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摘要
Symmetric hyperfiltration membranes and their method of preparation and use are disclosed. The membranes are fashioned frompolyimides and conditioned with a lubricating oil. Permselective separation of aromatic hydrocarbons from non-aromatic hydrocarbons ina feed stream may be accomplished using the membranes under hyperfiltration conditions.
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