| 摘要 |
FIELD: chemistry.SUBSTANCE: ion-exchange membrane used to produce chlorine and alkali metal hydroxides is regenerated by feeding into electrode chambers of an electrolysis cell a solution consisting of 0.5-20 wt % citric acid, 0.1-1.5 wt % triethylsilyl methacrylic acid, 20-60 wt % ethyl alcohol and 18.5-79.4 wt % water, with solution temperature of 20-90°C, while maintaining voltage across the electrolysis cell of 1.3-2.4 V, without removing the membrane from the electrolysis cell.EFFECT: longer working life of the membrane without further costs on removal and regeneration thereof.1 tbl, 2 ex |
