FIELD: methods of production of asymmetric gas-separating and pervaporating membranes suitable for separation of mixtures containing acid components; applicable in gas, oil and chemical industries, and for cleaning of effluents to atmospheres. SUBSTANCE: method includes formation of solution of polysulfone or polyestersulfone in dimethylacetamide or N-methylpyrrolidone through spinneret accommodating mild precipitant. Time of fiber staying in precipitant is regulated by varying distance between spinneret and surface of hard precipitant in which fiber enters after precipitating in mild solvent. Mild solvent is removed by creation of opposite turbulent flow of hard precipitant. EFFECT: increased productivity of membranes without impairing their selectivity. 2 cl, 3 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR PRODUCING A POLYSULFONE MEMBRANE FOR FILTRATION OF AQUEOUS MEDIA | 2022 |
|
RU2808876C1 |
| METHOD OF SELECTING POLYMER COMPOSITION FOR PRODUCING GAS SEPARATION HOLLOW FIBER MEMBRANES | 2023 |
|
RU2824991C1 |
| COMPOSITION FOR MOULDING HOLLOW FIBRE MEMBRANE | 2016 |
|
RU2614024C1 |
| METHOD OF PRODUCING MEMBRANES FOR ULTRAFILTRATION OF AQUEOUS MEDIA | 2018 |
|
RU2689595C1 |
| METHOD OF MANUFACTURING PREVAPORATION COMPOSITE POLYMER MEMBRANE | 1994 |
|
RU2094105C1 |
| FIBERGLASS COMPOSITE GAS-FILLING MEMBRANE AND THE METHOD OF ITS PRODUCTION | 2017 |
|
RU2655140C1 |
| METHOD FOR OBTAINING A POLYMER MEMBRANE (OPTIONS) | 2021 |
|
RU2769246C1 |
| METHOD FOR PREPARING COMPOSITIONAL POLYMERIC DIFFUSION MEMBRANES AND DIFFUSION MEMBRANES PREPARED BY THIS METHOD | 2000 |
|
RU2211725C2 |
| METHOD OF MANUFACTURING COMPOSITE POLYMER PERVAPORATION MEMBRANES | 1997 |
|
RU2129910C1 |
| METHOD OF PRODUCING POLYAMIDE IMIDE-BASED HOLLOW FIBRE BASED AND HOLLOW FIBRE | 2012 |
|
RU2510435C1 |
