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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.:

US 11618934 B1

PDFFull Text
Date of Patent:
Apr. 04, 2023

Filed:

Mar. 14, 2018

Recovery of copper from heap leach residues

Applicant:

Teck Metals Ltd., Vancouver, CA;

Inventors:

Hector Lizama, Castlegar, CA;

Danilo Arrué, Las Condes, CL;

Assignee:

TECK METALS LTD., Vancouver, CA;

Attorneys:

Borden Ladner Gervais LLP

Geoffrey deKleine

Primary Examiner:

Steven J Bos

Int. Cl.
CPC ...
C22B 15/00 (2006.01); C22B 3/08 (2006.01); C22B 3/18 (2006.01); E21B 34/02 (2006.01); E21B 43/28 (2006.01); E21B 43/30 (2006.01); E21B 47/00 (2012.01); E21B 49/00 (2006.01); G01V 3/00 (2006.01); C22B 3/26 (2006.01);
U.S. Cl.
CPC ...
C22B 15/0071 (2013.01); C22B 3/08 (2013.01); C22B 3/18 (2013.01); C22B 3/26 (2021.05); E21B 34/02 (2013.01); E21B 43/28 (2013.01); E21B 43/281 (2013.01); E21B 43/30 (2013.01); E21B 47/00 (2013.01); E21B 49/00 (2013.01); G01V 3/00 (2013.01);
Abstract

A process for recovering copper from heap leach residues containing residual copper, includes identifying a production zone within the heap leach residues for secondary leaching, drilling wells into the heap at locations suitable for delivering leach solution into the production zone, injecting the leach solution including ferric ions through the wells and aerating the production zone to facilitate oxidative reactions within the production zone, and collecting effluent from the heap for copper recovery therefrom.

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Quick Actions:

Lizama, Hector. (2023). Recovery of copper from heap leach residues (U.S. Patent No. 11618934). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11618934

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