Abstract
An amidoxime and carboxylate containing polymer adsorbent derived from acrylic fiber has shown extremely high efficiencies for extracting critical materials and precious metals from seawater. Among 50 extractable elements, the lanthanides, cobalt, and palladium were ranked near the top with KD values in the order of 107, about an order of magnitude higher than that of uranium. The KD value of the lanthanides increased linearly with the atomic number indicating charge density is a factor controlling trivalent lanthanide extractability in seawater. The data given in this report provides crucial information regarding the strategies of ocean mining of critical materials and precious metals.
Funder
United States Department of Energy
Subject
General Materials Science,Metals and Alloys
Reference37 articles.
1. Mining Critical Metals and Elements from Seawater: Opportunities and Challenges
2. Summary Table of Mean Ocean Concentrations and Residence Timeshttps://www.mbari.org/summary-table-of-mean-ocean-concentrations-and-residence-times/
3. Marine Chemistry & Geochemistry a Derivative of the Encyclopedia of Ocean Sciences;Steele,2010
4. Mining valuable minerals from seawater: a critical review
5. Materials for the Recovery of Uranium from Seawater