The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2020
Filed:
Oct. 31, 2017
Georgia State University Research Foundation, Atlanta, GA (US);
Thiele Kaolin Company, Sandersville, GA (US);
W. Crawford Elliott, Atlanta, GA (US);
Daniel Joseph Gardner, Atlanta, GA (US);
Prakash Malla, Sandersville, GA (US);
Ed Riley, Sandersville, GA (US);
Georgia State University Research Foundation, Atlanta, GA (US);
Thiele Kaolin Company, Sandersville, GA (US);
Abstract
Described herein are technologies for concentrating rare-earth elements from a heavy fraction of grit in gangue produced in kaolin mining. In some examples, grit is separated as a non-clay fraction of gangue produced in a kaolin mining operation. The grit is separated into a heavy mineral grit sub-fraction and a light mineral grit sub-fraction. Rare-earth elements, particularly heavy rare-earth elements, are thereafter extracted from the heavy mineral grit sub-fraction using various extraction technologies.