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:
May. 20, 2025
Filed:
Mar. 27, 2020
The Governing Council of the University of Toronto, Toronto, CA;
Tenova Goodfellow Inc., Mississauga, CA;
Gisele Azimi, Toronto, CA;
Jihye Kim, Toronto, CA;
Vittorio Scipolo, Etobicoke, CA;
Enrico Malfa, Zanica, IT;
THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO, Toronto, CA;
TENOVA GOODFELLOW INC., Mississauga, CA;
Abstract
Pyro-hydrometallurgical methods are described to economically and environmentally recover a target metal from iron slag or steel slag. For instance, the method can enable subjecting an iron or steel slag feed to acid-baking with an acid to produce a dried mixture comprising at least one soluble metal salts, then subjecting the dried mixture to water leaching to an aqueous solution comprising an aqueous leachate rich in said target metal and solid residues and subsequently separating the aqueous leachate rich in said target metal from the solid residues. This acid-baking water-leaching method facilitates efficient recovery of target metal compared to conventional methods.