FIELD: process engineering.
SUBSTANCE: invention relates to production of hollow fibre membrane with bearing ply and separation ply. Note here that this process comprises the steps that follow. (a) Extrusion of spinning composition including first polymer and solvent for said polymer through inner ring bore of the head for making of hollow fibre. (b) Co-extrusion of composition including organic nucleophilic reagent and the mix of solvent and non-solvent for first polymer. Here, this composition is either extruded through the head central ring bore to get hollow fibre or through the head external ring bore. (c) Hollow fibre is transferred through coagulation bath. Hollow fibre membrane can be used in gas separation processes and filtration of fluids.
EFFECT: production of hollow fibre membrane with bearing and separation plies.
13 cl, 5 dwg
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