US 12,311,349 B2
System and method for regenerating and restoring kinetic properties of resin
Thomas O. Miller, Peoria, AZ (US)
Assigned to lonx Solutions, LLC, Glendale, AZ (US)
Appl. No. 17/436,072
Filed by IONX SOLUTIONS, LLC, Glendale, AZ (US)
PCT Filed Jan. 13, 2020, PCT No. PCT/US2020/013382
§ 371(c)(1), (2) Date Sep. 2, 2021,
PCT Pub. No. WO2020/180397, PCT Pub. Date Sep. 10, 2020.
Application 17/436,072 is a continuation in part of application No. 16/676,128, filed on Nov. 6, 2019, granted, now 10,737,260, issued on Aug. 11, 2020.
Application 16/676,128 is a continuation of application No. 16/292,131, filed on Mar. 4, 2019, granted, now 10,532,351, issued on Jan. 14, 2020.
Prior Publication US 2022/0168725 A1, Jun. 2, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01J 49/70 (2017.01); B01J 49/53 (2017.01); B01J 49/57 (2017.01); B01J 49/60 (2017.01)
CPC B01J 49/70 (2017.01) [B01J 49/53 (2017.01); B01J 49/57 (2017.01); B01J 49/60 (2017.01)] 20 Claims
OG exemplary drawing
 
1. A method of cleaning ion exchange resin from organic and iron foulants for reuse of the resin, comprising:
introducing the fouled/exhausted resin to a vessel through at least one eductor, the vessel containing a sulfite chemical cleaning solution configured to perform a reducing reaction to clean resins prior to regeneration, converting the cleaning solution to sulfate;
circulating the cleaning solution, at least one regeneration chemical, and rinse waters to flow bi-directionally through at least one separation screen of a draw chamber while the resin is moving about the draw chamber as it is pulled towards a bottom of the draw chamber by the at least one eductor;
recirculating the resin from the bottom of the draw chamber to the top of the vessel using the at least one eductor and a plenum in fluid communication with the eductor, where the resin travels downward again into the draw chamber; and
rinsing the resin.