TECHNOLOGY SUMMARY

The technology is based on hydrometallurgy. Unlike acid-based processes, this novel technology employs oxidative dissolution to leach REEs from wastes using water-based neutral solution of copper(II) salts. A unique feature of the water-based acid-free dissolution is the potential for selective dissolution of magnets in e-wastes, enabled by adjustment of process parameters like temperature, residence time of waste in solution and copper salt concentration. Hence, the need to pre-concentrate magnet contents is eliminated. The unique features of our novel technology will enable us to mature an easily-deployable process for recycling REEs from waste materials and devices. The process will enable circular economy by reinserting REEs from wastes into the supply chain. As a result, it will help to reduce the loss of useful REEs in landfills and limit reliance on mining.

AREA/MATURITY/AWARDS

Primary Application Area: Materials, Chemical

Technology Development Status: Prototype

Technology Readiness Level: TRL 3

Vetted Programs/Awards: 2018 R&D 100 Award Winner, 2018 R&D 100 Green Tech Gold Winner, 2018 Notable Technology Development Award from the FLC Mid-Continent Region

SHOWCASE SUMMARY

Organization Type: Academic/Gov Lab

Showcase Booth #: 402

Website: https://cmi.ameslab.gov

GOVT/EXTERNAL FUNDING SOURCES