Polymetallic Nodules

Polymetallic Nodules represent a unique challenge for processing, as they contain an array of valuable metals in different forms. A number of processing options have been proposed, and this article gives a quick outline of each.

Both the Clarion-Clipperton Zone and the Cook Islands EEZ contain polymetallic nodules that appear superficially similar. However, there are differences in composition between the two zones that critically impact project economics.

Land mining and deep sea mining both have significant benefits and impacts. We compare both mining options across major impact categories.

The Metals Co's recent MOU with PAMCO indicates that they're looking to use RKEF furnaces to process polymetallic nodules from the CCZ. Here's a quick refresher on RKEF furnaces and how they work.

Polymetallic nodules are small spheroidal "rocks" that form over millions on years on the deep seabed. They consist of large amounts of precious metals, and present a compelling prospect for sea bed mining.