US2023250510A1PendingUtilityA1
Recovery of precious and chalcophile metals
Assignee: Mining and Process Solutions Pty LtdPriority: Aug 14, 2017Filed: Apr 18, 2023Published: Aug 10, 2023
Est. expiryAug 14, 2037(~11 yrs left)· nominal 20-yr term from priority
C22B 15/0067C22B 3/16C22B 11/04C22B 3/12C22B 15/00Y02P10/20
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Claims
Abstract
A process for recovery of one or more elements, selected from precious metals and chalcophile metals, as herein defined, from materials containing precious and/or chalcophile metal/s, said process including: (i) contacting the material with an alkaline solution containing a lixiviant comprising an amino acid, or derivative thereof, and an alkali stable transition metal complex in order to form a leachate containing the precious metal and/or chalcophile metal; and (ii) recovering the precious metal and/or chalcophile metal from the leachate.
Claims
exact text as granted — not AI-modified1 - 18 . (canceled)
19 . A leaching solution comprising an amino acid lixiviant and an alkali stable transition metal complex.
20 . The leaching solution of claim 19 , wherein the alkali stable transition metal complex is one or more of ferrocyanide, ferricyanide, ferric gluconate and ferric EDTA.Join the waitlist — get patent alerts
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