FIELD: technological processes.
SUBSTANCE: invention relates to asymmetric, entirely coated with flat-sheet membranes. Disclosed is an asymmetric, entirely coated with a shell flat-sheet membrane, comprising a miscible composition of a polymer, which is an aromatic polyether sulphone (PES), and a polymer, which is an aromatic polyimide, wherein layer of said mixed composition has thickness of 60 to 230 microns and surface of said layer is cross-linked by UV radiation. Disclosed also is a method of separating at least one gas from a mixture of gases using said asymmetric, entirely coated with a shell flat-sheet membrane.
EFFECT: disclosed membrane has high efficiency of gas separation.
8 cl, 2 tbl, 4 ex
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| HIGHLY ELASTIC POLYMER MEMBRANES FOR SEPARATION PROCESS | 2018 |
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RU2726354C1 |
| POLYIMIDE GAS SEPARATION MEMBRANES | 2012 |
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| POLYIMIDE MEMBRANES WITH HIGH PERMEABILITY: HIGH SELECTIVITY TO GASES THROUGH UV TREATMENT | 2015 |
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| POLYMERS, POLYMER MEMBRANES AND METHODS FOR PRODUCTION THEREOF | 2011 |
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| HIGHLY SELECTIVE FACILITATED TRANSPORT MEMBRANE | 2018 |
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| ASYMMETRIC MEMBRANE FOR SEPARATION OF GASES AND METHOD FOR ITS MANUFACTURE | 1994 |
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| METHOD OF DIAPHRAGM SEPARATION OF GASEOUS MIXTURES | 1996 |
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RU2102128C1 |
| POLYMER GAS-SEPARATION MEMBRANE AND METHOD OF ITS PRODUCTION | 2017 |
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| SURFACE PROCESSING FOR POLYMER MEMBRANE MATERIALS | 2011 |
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RU2467790C1 |
