EP 3472372 A1 20190424 - A METHOD OF RECOVERING GOLD FROM A GOLD-BEARING CONCENTRATED COPPER CHLORIDE SOLUTION
Title (en)
A METHOD OF RECOVERING GOLD FROM A GOLD-BEARING CONCENTRATED COPPER CHLORIDE SOLUTION
Title (de)
VERFAHREN ZUR RÜCKGEWINNUNG VON GOLD AUS EINER GOLDHALTIGEN KONZENTRIERTEN KUPFERCHLORIDLÖSUNG
Title (fr)
PROCÉDÉ DE RÉCUPÉRATION D'OR D'UNE SOLUTION CONCENTRÉE DE CHLORURE DE CUIVRE RENFERMANT DE L'OR
Publication
Application
Priority
FI 2016050442 W 20160617
Abstract (en)
[origin: WO2017216417A1] The invention relates to a method of recovering gold from a gold-bearing concentrated copper chloride solution com¬ prising: a) an electrodeposition step, wherein an external potential or reducing current is applied to an electrode contained in the gold-bearing concentrated copper chloride solution thereby depositing copper and optionally gold on the electrode, b) a redox replacement step, wherein the in step a) applied external potential or reducing current is cut-off or reduced thereby allowing copper deposited on the electrode to be replaced spontaneously by gold contained in the solution thereby obtaining an electrode, which contains gold.
IPC 8 full level
C25C 1/20 (2006.01); C02F 1/62 (2006.01); C22B 3/46 (2006.01); C22B 11/00 (2006.01); C02F 103/10 (2006.01); C02F 103/16 (2006.01)
CPC (source: EA EP)
C22B 11/04 (2013.01 - EA EP); C25C 1/20 (2013.01 - EA EP)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017216417 A1 20171221; EA 035935 B1 20200903; EA 201892400 A1 20190531; EP 3472372 A1 20190424; EP 3472372 A4 20200401; MX 2018014210 A 20190429; PE 20190235 A1 20190215
DOCDB simple family (application)
FI 2016050442 W 20160617; EA 201892400 A 20160617; EP 16905364 A 20160617; MX 2018014210 A 20160617; PE 2018003082 A 20160617