FIELD: chemistry.
SUBSTANCE: method for obtaining composite anisotropic cation-exchange membrane, includes placement of cation-exchange membrane in cell with solutions of different compositions and concentrations on different sides of membrane, passing direct electric current with specified density for certain time, characterised by the fact that 0.005-0.015 M aniline solution in mineral acid with concentration of hydrogen ions 0.05 M is supplied into cell chamber from the side of positively charged electrode, and salt solution with 0.0005-0.015 M, in which acid residue anion is oxidant, in mineral acid with concentration of hydrogen ions 0.05 M, is supplied into chamber from the side of negatively charged electrode, with density of direct electric current being selected equal 80-500 A/m2, and time of direct electric current passing being equal 10-120 minutes.
EFFECT: express, economical and environmentally friendly method for obtaining composite anisotropic cation-exchange membranes.
8 cl, 1 tbl, 3 dwg
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