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Leaching and recovery of metals from cobalt-rich manganese ocean crust.
Allen JP; Abercrombie HL; Rice DA
Miner Metall Process 1991 May; :97-104
Cobalt, nickel, and manganese can be recovered quickly, cleanly, and selectively from cobalt-rich manganese ocean crust by leaching in dilute acid solutions in the presence of hydrogen peroxide. Common selective precipitation methods can then be used to recover these metals from the leach liquor. The leaching reaction produces only oxygen as a byproduct, and the waste residue from leaching was tested and found to be nonhazardous under existing Environmental Protection Agency specifications. The leaching process is effective in either fresh water or seawater. This research is a part of the U.S. Bureau of Mines program to identify the mineral resources of the exclusive economic zone and devise methods for recovering their valuable components.
OP; Journal Article
Minerals & Metallurgical Processing
Page last reviewed: December 30, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division