18833533. OXIDATIVE LEACHING METHODS (BASF SE)
OXIDATIVE LEACHING METHODS
Organization Name
Inventor(s)
Wolfgang Rohde of Ludwigshafen DE
Nils-Olof Joachim Born of Ludwigshafen DE
Marc Duchardt of Ludwigshafen DE
Fabian Seeler of Ludwigshafen DE
Anne-Marie Caroline Zieschang of Ludwigshafen DE
OXIDATIVE LEACHING METHODS
This abstract first appeared for US patent application 18833533 titled 'OXIDATIVE LEACHING METHODS
Original Abstract Submitted
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 LiMM′O. 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(M)/8 to 2 n(M); n(M)_=2(s-q)-p-roxm′ and Ox 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′.