2020-WANG-68877 | |
Researchers at Purdue University have developed new techniques to recover rare earth elements. Rare earth elements (REEs) are a series of elements in the periodic table with properties that make them useful in electronic and magnetic devices. Recovery of REEs is important because pure REEs are produced only in a few countries and regions around the world. Current methods for purification of REEs involve liquid-liquid extraction, which creates toxic waste. The Purdue researchers have developed an efficient, economical, and environmentally friendly ligand-assisted chromatography methods to produce high-purity REEs. This method involves multiple zones to produce high-purity REEs from complex mixtures. It is a low cost as well as domestic REE production method that generates nearly zero waste. Advantages: - Nearly zero waste - Low cost - Provides domestic production of rare earth elements Applications - Production of REEs from minerals or wastes Technology Validation: In a bastnasite mixture with six rare earth elements, high yield, high purity (>99%) Ce, La, Nd, and Pr were recovered using the researchers’ method. More than 95% of the chemicals used in the process can be recovered and reused. |
|
|
|
Aug 5, 2022
NATL-Patent
United States
(None)
(None)
Jan 28, 2021
PCT-Gov. Funding
WO
(None)
(None)
Jan 28, 2021
NATL-Patent
Canada
(None)
(None)
Jan 28, 2021
NATL-Patent
Europe
(None)
(None)
Jan 28, 2021
NATL-Patent
Japan
(None)
(None)
Jan 28, 2021
NATL-Patent
South Korea
(None)
(None)
Jan 28, 2021
NATL-Patent
Vietnam
(None)
(None)
Jan 28, 2021
NATL-Patent
Thailand
(None)
(None)
Feb 28, 2020
Provisional-Gov. Funding
United States
(None)
(None)
(None)
NATL-Patent
Australia
(None)
(None)
(None)
NATL-Patent
South Africa
(None)
(None)
|
|
Purdue Office of Technology Commercialization The Convergence Center 101 Foundry Drive, Suite 2500 West Lafayette, IN 47906 Phone: (765) 588-3475 Fax: (765) 463-3486 Email: otcip@prf.org |