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:
Nov. 07, 2023
Filed:
Jun. 16, 2021
Applicant:
Larry Lien, Solana Beach, CA (US);
Inventor:
Larry Lien, Solana Beach, CA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B 9/02 (2006.01); C22B 59/00 (2006.01); C22B 11/00 (2006.01);
U.S. Cl.
CPC ...
C22B 9/023 (2013.01); C22B 11/00 (2013.01); C22B 59/00 (2013.01);
Abstract
Methods of recovering precious metals from unconventional feed water sources. In approaches, the methods use a combination of one or more of ultrafiltration, nanofiltration, and/or reverse osmosis membranes. The unconventional feed water source may be salt lake brines, coal-fired plant flue-gas scrubber blowdown water, high salinity brines, concentrated brine from desalination of seawater and the like sources. The recovered precious metals may include gold tetrachloride, gold sulfate, silver tetrachloride, silver sulfate, rare earth elements, or mixtures thereof.