公开(公告)号：US20210283593A1

公开(公告)日：2021-09-16

申请号：US16321609

申请日：2017-08-25

Applicant: John C. Rohanna

Inventor： John C. Rohanna

IPC: B01J49/57 ,  B01J49/07 ,  B01J47/016 ,  B01J41/05

Abstract: Provided is a method of removing sodium from a collection of sodium-laden resin beads comprising the steps of (a) providing the collection of sodium-laden resin beads, wherein the resin beads comprise one or more vinyl polymers having quaternary ammonium groups; wherein cation exchange resin, if present in the collection of resin beads, are present in an amount of 0 to 0.5% by weight based on the weight of the collection of resin beads; wherein 90 mole % or more of the quaternary ammonium groups are each associated with a hydroxide anion; wherein sodium is present in an amount of more than 100 ppb by weight, based on the weight of the collection of sodium-laden resin beads, and (b) bringing the collection of sodium-laden resin beads into contact with aqueous ammonium hydroxide to form a mixture (b).