University of Toronto

Tenova Goodfellow Inc.

Jihye Kim

Enrico Malfa

Vittorio Scipolo

Gisele Azimi

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.

Methods for recovering a target metal from iron or steel slag using at least one of a carbothermic reduction process and a pyro-hydrometallurgical process

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Toronto, Canada

Jihye Kim