EP 3230494 A4 20180912 - ELECTROWINNING CIRCUIT AND METHOD FOR GATHERING OF METAL OF INTEREST BY AN IONIC EXCHANGE INTERFACE
Title (en)
ELECTROWINNING CIRCUIT AND METHOD FOR GATHERING OF METAL OF INTEREST BY AN IONIC EXCHANGE INTERFACE
Title (de)
ELEKTROLYTISCHER GEWINNUNGSKREISLAUF UND VERFAHREN ZUM SAMMELN VON BESTIMMTEN METALLEN DURCH EINE IONENAUSTAUSCHGRENZFLÄCHE
Title (fr)
CIRCUIT D'EXTRACTION ÉLECTROLYTIQUE ET PROCÉDÉ DE COLLECTE DE MÉTAL D'INTÉRÊT PAR UNE INTERFACE D'ÉCHANGE IONIQUE
Publication
Application
Priority
CA 2014051197 W 20141211
Abstract (en)
[origin: WO2016090458A1] A metallurgical method for operating an autogenous production circuit for producing metal(s), said method using one or more oxidizing agents generated electrolytically in a cell with one or more interfaces which allows anion exchange; said method comprising steps of: (a) leaching of mineral(s) or material(s) containing at least one metal of interest (LX) in a first cell (A) to produce a pregnant leach solution (2) and an acid-ferrous aqueous solution (8); (b) using solvent extraction process(es) or selection process(es) in a second cell (B) to concentrate said metal(s) of interest (SX) of said pregnant leach solution (2) to produce a rich electrolyte (5) and a raffinate solution (4), said raffinate solution (4) being recycled in said first cell (A); and (c) electrowinning (EW) in a third cell (C) of said rich electrolyte (5) received from said second cell (B) and said acid-ferrous aqueous solution (8) received from said first cell (A), for producing a metal cathode (6) and an acid-ferric acid solution (9), said acid-ferric acid solution (9) being recycled in said first cell (A), wherein said steps (a), (b) and (c) are performed in said autogenous circuit that includes said first, second and third cells (A, B, C) with one or more anionic interfaces producing anodic and cathode reactions.
IPC 8 full level
C22B 3/06 (2006.01); C22B 3/20 (2006.01); C22B 3/26 (2006.01); C22B 3/42 (2006.01); C25C 1/12 (2006.01); C25C 7/00 (2006.01); C25C 7/06 (2006.01)
CPC (source: EP US)
C22B 3/06 (2013.01 - EP US); C22B 3/20 (2013.01 - EP US); C22B 3/26 (2021.05 - EP US); C22B 15/0071 (2013.01 - US); C25C 1/12 (2013.01 - EP US); C25C 7/00 (2013.01 - EP US); C25C 7/06 (2013.01 - EP US); Y02P 10/20 (2015.11 - EP US)
Citation (search report)
- [XAI] WO 9712078 A1 19970403 - RMG SERVICES PTY LTD [AU], et al
- [A] US 6309531 B1 20011030 - MURRAY MICHAEL C [US]
- [A] CASAS J M ET AL: "Processing of a ferric anolyte produced by a copper electrowinning cell based on reactive electro dialysis", MINERALS ENGINEERING, PERGAMON PRESS , OXFORD, GB, vol. 21, no. 7, 1 June 2008 (2008-06-01), pages 525 - 532, XP022667943, ISSN: 0892-6875, [retrieved on 20080221], DOI: 10.1016/J.MINENG.2007.10.022
- See references of WO 2016090458A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2016090458 A1 20160616; AU 2014413899 A1 20170727; CA 3007838 A1 20160616; EA 201700304 A1 20171130; EP 3230494 A1 20171018; EP 3230494 A4 20180912; US 2017321336 A1 20171109; ZA 201704619 B 20190626
DOCDB simple family (application)
CA 2014051197 W 20141211; AU 2014413899 A 20141211; CA 3007838 A 20141211; EA 201700304 A 20141211; EP 14907885 A 20141211; US 201415535318 A 20141211; ZA 201704619 A 20170710