METHOD OF FORMATION OF ASYMMETRIC GAS-SEPARATING AND PERVAPORATING MEMBRANES IN FORM OF HOLLOW FIBERS

摘要

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