TREATMENT OF CATION EXCHANGE MEMBRANE WITH MONOAMINE ITS SALT, OR QUATERNARY AMMONIUM SALT

摘要

A process for the electrolysis of alkali halide. Use is made of a cation exchange membrane having as its ion exchange radicals, sulfonic acid radicals. This membrane is treated with primary, secondary or tertiary monoamine or its salt or quaternary ammonium salt and then heat-treated at a temperature higher than 100.degree.C and lower than melting point of the reaction product and then subjected to drying, so as to improve the cationselecting performance of the membrane and to increase its current efficiency.