EP 4256097 A1 20231011 - PROCESS FOR GOLD AND/OR PLATINUM GROUP METALS HEAP LEACHING WITH LIME
Title (en)
PROCESS FOR GOLD AND/OR PLATINUM GROUP METALS HEAP LEACHING WITH LIME
Title (de)
VERFAHREN ZUR HAUFENAUSLAUGUNG VON GOLD- UND/ODER PLATINGRUPPENMETALLEN MIT KALK
Title (fr)
PROCÉDÉ DE LIXIVIATION EN TAS DE MÉTAUX DU GROUPE DE L'OR ET/OU DU PLATINE À L'AIDE DE CHAUX
Publication
Application
Priority
- US 202017108129 A 20201201
- EP 20210962 A 20201201
- EP 2021083470 W 20211130
Abstract (en)
[origin: WO2022117530A1] Process for gold and/or platinum group metals heap leaching comprising irrigating a heap (1) with an irrigation solution (9, 10, 11 & 12) containing sodium cyanide for leaching gold and/or platinum group metals from said gold and/or platinum group metals containing ore where a lime reagent addition (B) by feeding a fine particle lime suspension containing lime particles in an aqueous phase is done in the irrigation solution.
IPC 8 full level
C22B 11/08 (2006.01)
CPC (source: EP)
C22B 11/08 (2013.01)
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)
DOCDB simple family (application)
EP 2021083470 W 20211130; EP 21816087 A 20211130