公开(公告)号：US20250146102A1

公开(公告)日：2025-05-08

申请号：US18833533

申请日：2023-01-31

Applicant: BASF SE

Inventor： Wolfgang Rohde ,  Nils-Olof Joachim Born ,  Marc Duchardt ,  Vincent Smith ,  Fabian Seeler ,  Anne-Marie Caroline Zieschang

IPC: C22B15/00 ,  H01M10/54

Abstract: Disclosed are methods for leaching a material comprising copper in a zero oxidation state, wherein the method comprises contacting the material with an acidic aqueous solution having a pH less than 6 to form a leaching mixture, and oxidizing the copper with an oxidizing agent of formula LipMqM′rOs. M comprises one or more metals chosen from nickel, manganese, and cobalt, M′ comprises one or more metals chosen from Mg, Ca, Ba, Al, Ti, Zr, Zn, Fe, V, Mo, and W; p ranges from 1 to 1.4; q ranges from 0.6 to 2; r ranges from 0 to 1; s ranges from 2 to 4; and a total amount of copper present in the material before leaching in moles divided by a total amount of the oxidizing agent in moles, mols(Cu)/moIs(OA), ranges from n(eM)/8 to 2 n(eM); n(eM)_=2(s-q)-p-r⋅oxm′ and OxM′ is the average oxidation number of M′ determined by calculating the molar average of the most stable oxidation number for each metal, as an oxide, comprised by M′.