| 摘要 |
A process for the reclamation of spent aqueous alkanolamine solutions comprising contacting a spent aqueous alkanolamine solution (10) with a stro ng base ion exchange vesin (40, 50) for time sufficient to sorb from the aqueou s alkanolamine solution at least a portion of the accumulated ions and after a high concentration of ions accumulate on the resin, regenerating the strong base ion exchange resin by: (a) purging the resin with water or nitrogen, (b ) contacting the strong base ion exchange resin with a sodium chloride solutio n for a time sufficient to remove the ions, (c) purging the resin to remove th e sodium chloride solution, (d) contacting the resin with an alkali metal hydroxide solution, preferably sodium hydroxide, for a time sufficient to convert the resin to a substantially hydroxide form; and (e) purging the resin, wherein the ion sorption capacity of the resin is maintained at a substantially constant value. |
