EP 4192990 A1 20230614 - METHOD AND DEVICE FOR EXTRACTING GOLD AND/OR SILVER AND/OR AT LEAST ONE PLATINUM METAL
Title (en)
METHOD AND DEVICE FOR EXTRACTING GOLD AND/OR SILVER AND/OR AT LEAST ONE PLATINUM METAL
Title (de)
VERFAHREN UND VORRICHTUNG ZUR GEWINNUNG VON GOLD UND/ODER SILBER UND/ODER MINDESTENS EINEM PLATINMETALL
Title (fr)
PROCÉDÉ ET DISPOSITIF D'EXTRACTION D'OR ET/OU D'ARGENT ET/OU D'AU MOINS UN MÉTAL DU PLATINE
Publication
Application
Priority
- DE 102020209886 A 20200805
- EP 2021070423 W 20210721
Abstract (en)
[origin: WO2022028899A1] The invention relates to a method for extracting gold and/or silver and/or at least one platinum metal from at least one starting material, wherein the starting material is treated in an electrolyte solution using at least one oxidizing agent and at least one reducing agent in an alternating manner, wherein an inlet (51) of the oxidizing agent and an inlet (56) of the reducing agent into the electrolyte solution are each controlled or regulated (55) on the basis of at least one concentration (c(t), c(t-1)) of a metal to be extracted or the complex thereof and on the basis of a redox voltage (A(t)) of the electrolyte solution. A device for extracting gold and/or silver and/or at least one platinum metal from at least one starting material has a container, which is designed to receive the starting material and an electrolyte solution, and at least one fluid inlet, at least one UV/Vis spectrometer, and at least one ORP sensor.
IPC 8 full level
C22B 3/16 (2006.01); C22B 3/04 (2006.01); C22B 11/00 (2006.01); C22B 11/08 (2006.01)
CPC (source: EP)
C22B 3/045 (2013.01); C22B 3/16 (2013.01); C22B 11/042 (2013.01); C22B 11/08 (2013.01); Y02P 10/20 (2015.11)
Citation (search report)
See references of WO 2022028899A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DE 102020209886 A1 20220210; CN 116096930 A 20230509; EP 4192990 A1 20230614; WO 2022028899 A1 20220210
DOCDB simple family (application)
DE 102020209886 A 20200805; CN 202180058011 A 20210721; EP 2021070423 W 20210721; EP 21754727 A 20210721