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nanofiltration composite membrane, use of a membrane, and interfacial polymerization process to form a solvent nanofiltration composite membrane
nanofiltration composite membrane, use of a membrane, and interfacial polymerization process to form a solvent nanofiltration composite membrane
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机译：纳滤复合膜，膜的使用以及界面聚合工艺以形成溶剂纳滤复合膜
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摘要
nanofiltration composite membrane, use of a membrane, and interfacial polymerization process to form a solvent nanofiltration composite membrane. The present invention relates to a composite membrane for nanofiltration of a feed stream solution comprising a solvent and dissolved solutes and causing preferential rejection of the solutes. The composite membrane comprises a thin polymeric film formed by interfacial polymerization on a support membrane. The support membrane is further impregnated with a conditioning agent and is stable in polar aprotic solvents. The composite membrane is optionally treated in a deactivation medium, wherein the interfacial polymerization reaction may be deactivated and, in some embodiments, the membrane chemistry may be modified. Finally, the composite membrane is treated with an activating solvent prior to nanofiltration.
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