US 12,214,342 B2
Systems and methods for segregating into dual waste streams oxidizable catalyst material from inert support media
Carlos Valdez, San Antonio, TX (US)
Assigned to The Maitland Company, LLC, Sumter, SC (US)
Filed by The Maitland Company, LLC, Sumter, SC (US)
Filed on Mar. 28, 2023, as Appl. No. 18/191,775.
Application 18/191,775 is a continuation of application No. 17/012,457, filed on Sep. 4, 2020, abandoned.
Prior Publication US 2023/0241599 A1, Aug. 3, 2023
Int. Cl. B01J 38/72 (2006.01); B01J 38/04 (2006.01); B07B 1/34 (2006.01); B07B 4/02 (2006.01); B09B 3/40 (2022.01); B09B 3/80 (2022.01)
CPC B01J 38/72 (2013.01) [B01J 38/04 (2013.01); B07B 1/34 (2013.01); B07B 4/02 (2013.01); B09B 3/40 (2022.01); B09B 3/80 (2022.01); B07B 2201/04 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for disposing of a mixture of oxidizable catalyst material, grading material, and inert support media, the method comprising:
introducing inert gas into an enclosure, wherein the enclosure contains a plurality of stacked screens, the stacked screens having openings that decrease in size from a top of the stack to a bottom of the stack;
introducing the mixture to an uppermost one of the plurality of stacked screens;
moving the plurality of stacked screens to cause the oxidizable catalyst material and the grading material to separate from and migrate to a location beneath the inert support media;
conveying the separated inert support media to a location outside the enclosure for disposal as non-hazardous waste; and
conveying the separated oxidizable catalyst material and the grading material to a location outside the enclosure for at least one of reclamation or thermal destruction.