US 12,226,762 B2
Antioxidant protection for ion exchange resins
Gregory Bachman, Loves Park, IL (US); and Marty Wilkes, Roscoe, IL (US)
Assigned to Evoqua Water Technologies LLC, Pittsburgh, PA (US)
Filed by Evoqua Water Technologies LLC, Pittsburgh, PA (US)
Filed on Nov. 13, 2023, as Appl. No. 18/507,580.
Application 18/507,580 is a continuation of application No. 16/969,548, granted, now 11,845,074, previously published as PCT/US2019/017627, filed on Feb. 12, 2019.
Claims priority of provisional application 62/629,267, filed on Feb. 12, 2018.
Prior Publication US 2024/0189807 A1, Jun. 13, 2024
Int. Cl. B01J 49/60 (2017.01); B01J 47/14 (2017.01); B01J 49/53 (2017.01); C02F 1/42 (2023.01)
CPC B01J 49/60 (2017.01) [B01J 47/14 (2013.01); B01J 49/53 (2017.01); C02F 1/42 (2013.01); C02F 2001/425 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method of stabilizing virgin ion exchange resin material, the method comprising:
cleansing the virgin ion exchange resin material with a preparation comprising an alcohol solvent to produce a cleansed virgin ion exchange resin material, wherein the preparation comprises less than 0.5% isopropanol by volume;
introducing the cleansed virgin ion exchange resin material into a gas impermeable vessel; and
hermetically sealing the vessel.