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. 24, 2025
Filed:
Aug. 20, 2020
Applicant:
Scandium International Mining Corp., Sparks, NV (US);
Inventor:
Willem P. C. Duyvesteyn, Reno, NV (US);
Assignee:
Scandium International Mining Corporation, Reno, NV (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C22B 59/00 (2006.01); C22B 1/00 (2006.01); C22B 3/00 (2006.01); C22B 3/08 (2006.01); C22B 3/42 (2006.01); C22B 3/44 (2006.01); C22B 15/00 (2006.01); C22B 26/12 (2006.01); C22B 34/12 (2006.01); C22B 34/22 (2006.01);
U.S. Cl.
CPC ...
C22B 59/00 (2013.01); C22B 1/005 (2013.01); C22B 3/08 (2013.01); C22B 3/42 (2013.01); C22B 3/44 (2013.01); C22B 15/0071 (2013.01); C22B 23/043 (2013.01); C22B 26/12 (2013.01); C22B 34/1213 (2013.01); C22B 34/22 (2013.01);
Abstract
A method for extracting metal values from a low grade primary metal oxide ore feedstock is provided. The method includes providing a low grade primary metal oxide ore containing a primary metal and scandium; subjecting the ore to acid leaching, thus yielding an acidic leachate; extracting the primary metal and scandium from the leachate, thereby yielding an acidic barren leachate; and using the acidic barren leachate in a subsequent iteration of the acid leaching step.