US 12,065,715 B2
Polymetallic nodule mineral processing
Benjamin David Geldart, London (GB); David Dreisinger, Delta (CA); Niels Verbaan, Lakefield (CA); and Marlon Canizares, Lakefield (CA)
Assigned to LOKE MARINE MINERALS AS, Stavanger (NO)
Filed by Loke Marine Minerals AS, Stavanger (NO)
Filed on Aug. 5, 2022, as Appl. No. 17/817,727.
Prior Publication US 2024/0043962 A1, Feb. 8, 2024
Int. Cl. C22B 47/00 (2006.01); C22B 1/24 (2006.01); C22B 3/00 (2006.01); C22B 3/10 (2006.01); C22B 3/22 (2006.01); C22B 3/26 (2006.01)
CPC C22B 47/0063 (2013.01) [C22B 1/24 (2013.01); C22B 3/10 (2013.01); C22B 3/22 (2013.01); C22B 3/26 (2021.05); C22B 23/0415 (2013.01); C22B 23/0453 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A process for metal recovery, the process comprising:
contacting one or more polymetallic nodules to an acidic solution, thereby selectively extracting one or more magnesium-containing components from the one or more polymetallic nodules;
after contacting the one or more polymetallic nodules to the acidic solution, separating the extracted one or more magnesium-containing components from the one or more polymetallic nodules; and
after separating the extracted one or more magnesium-containing components from the one or more polymetallic nodules, providing the one or more polymetallic nodules to a process configured to recover nickel, cobalt, copper, and manganese from the one or more polymetallic nodules.