Invention Grant
- Patent Title: Method for recovering precious metal
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Application No.: US16351736Application Date: 2019-03-13
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Publication No.: US10590510B2Publication Date: 2020-03-17
- Inventor: Kaj Jansson , Mikko Ruonala , Tuukka Kotiranta
- Applicant: OUTOTEC (FINLAND) OY
- Applicant Address: FI Espoo
- Assignee: OUTOTEC (FINLAND) OY
- Current Assignee: OUTOTEC (FINLAND) OY
- Current Assignee Address: FI Espoo
- Agency: Carter, DeLuca & Farrell LLP
- Agent Robert P. Michal, Esq.
- Main IPC: B03D1/02
- IPC: B03D1/02 ; C22B3/22 ; C22B3/00 ; B03D1/14 ; C22B3/20

Abstract:
A method for recovering at least one precious metal from an aqueous solution containing the metal and particularly to recovery of silver and optionally one or more other precious metals from overflow of a sedimentation unit such as a thickener, a clarifier or a pond includes subjecting the aqueous solution to a micro and/or nanobubble flotation, wherein the pH of the aqueous solution is at most 1.5.
Public/Granted literature
- US20190211421A1 METHOD FOR RECOVERING PRECIOUS METAL Public/Granted day:2019-07-11
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