| 摘要 |
PURPOSE:To regenerate activity, by activating a used anion exchange resin preliminarily subjected to acid treatment with an alkali regenerating agent having a hydroxyl group. CONSTITUTION:In regenerating a deactivated anion exchange resin used in the removal of carbon disulfide in a 5C hydrocarbon distillate fraction, an acid such as hydrochloric acid is passed through an anion exchange resin and a chlorine ion (Cl<->) is adsorbed by the primary or secondary amine group bonded to the terminal group of the anion exchange resin while the treated resin is washed with water. Thereafter, an alkali regenerating agent having a hydroxyl group such as sodium hydroxide is passed through the resin and carbon disulfide is removed from the anion exchange resin simultaneously with the ion exchange with the chlorine ion. |
