Process for treating anion exchange resins
AssigneeUnion Carbide Corporation
InventorsEugene J. Boros, David W. Peck
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Abstract
Process for treating anion exchange resins containing a major portion of weak-base groups in catalytically inactive salt form and a minor portion of strong-base groups in catalytically inactive salt form wherein the resin is contacted with an aqueous solution containing ammonium hydroxide and ammonium chloride.
Claims5
A process for treating anion exchange resins containing a major portion of weak-base groups in catalytically inactive salt form and a minor portion of strong-base groups in catalytically inactive salt form which comprises contacting said ion exchange resin with an aqueous solution containing ammonium hydroxide and ammonium chloride for a time sufficient to convert said weak-base groups to their catalytically active free amine form while maintaining said strong-base groups in their catalytically inactive salt form, wherein said aqueous solution contains from about 2 to about 12 percent by weight ammonium chloride and from about 1 to about 10 percent ammonium hydroxide. PG,16
Dependencies are inferred from the claim text.