Invention Grant
- Patent Title: Process for recovering gold
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Application No.: US15521790Application Date: 2015-10-29
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Publication No.: US10669608B2Publication Date: 2020-06-02
- Inventor: Mari Lundström , John O'Callaghan , Timo Haakana , Riina Ahtiainen , Janne Karonen
- Applicant: OUTOTEC (FINLAND) OY
- Applicant Address: FI Espoo
- Assignee: OUTOTEC (FINLAND) OY
- Current Assignee: OUTOTEC (FINLAND) OY
- Current Assignee Address: FI Espoo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@1ce73c40
- International Application: PCT/FI2015/050749 WO 20151029
- International Announcement: WO2016/066905 WO 20160506
- Main IPC: C22B11/06
- IPC: C22B11/06 ; C22B3/24 ; C22B3/00 ; C22B3/10 ; C22B3/42

Abstract:
Provided is a process for recovery of gold from gold-bearing raw materials comprising (a) leaching said gold-bearing raw material in a chloride containing leaching solution containing a total concentration of less than 120 g/L of halide ions, whereby the total concentration of chloride ions is less than 120 g/L of to dissolve gold and to obtain a leach solution comprising gold in solution; and simultaneously contacting the leach solution comprising gold in solution with a re-sorptive material to obtain a leach solution comprising gold-bearing re-sorptive material; and (b) recovering gold and optionally silver from the said gold-bearing re-sorptive material.
Public/Granted literature
- US20170247777A1 PROCESS FOR RECOVERING GOLD Public/Granted day:2017-08-31
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