FIELD: process engineering.
SUBSTANCE: invention relates to production of membranes. Method of producing tubular filtration element with polymer membrane for filtration of fluids includes diluting membrane-forming polymer: sulfonic polyester, polysulfone or PVC and modifying additive. Obtained solution is applied on inner surface of vertically arranged open-pore tube to be hardened. Said modifying additive represents the mix of Laproxide with polyethylenamine, or piperazine, or diphenylamine.
EFFECT: hydrophilic membranes with higher technical performances.
3 tbl
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METHOD OF PRODUCING TUBULAR FILTRATION ELEMENT WITH PSU MEMBRANE | 2010 |
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RU2432987C1 |
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RU2141372C1 |
METHOD OF PRODUCING MEMBRANE TUBULAR FILTERING MEMBERS | 2001 |
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RU2192301C1 |
METHOD OF MANUFACTURING FLUOROPOLYMER MEMBRANES FOR FILTRATION OF LIQUIDS | 1999 |
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RU2158625C1 |
METHOD OF MANUFACTURING MEMBRANE-TYPE TUBULAR FILTER ELEMENTS | 2001 |
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RU2206376C2 |
Authors
Dates
2013-06-10—Published
2012-01-16—Filed