公开(公告)号：US20240352553A1

公开(公告)日：2024-10-24

申请号：US18569142

申请日：2022-06-09

Applicant: ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

Inventor： Jaeheon Lee ,  Jiajia Wu

IPC: C22B7/00 ,  C22B3/00 ,  C22B3/04 ,  C22B3/44 ,  C22B26/12 ,  C22B47/00 ,  H01M10/54

CPC classification number: C22B7/006 ,  C22B3/04 ,  C22B3/44 ,  C22B23/0407 ,  C22B23/0461 ,  C22B26/12 ,  C22B47/00 ,  H01M10/54

Abstract: Methods are disclosed for leaching metal-containing materials, such as those contained in the cathode of spent lithium-ion batteries, using a leach solution of an amino acid and a reducing agent. The metal-containing material is treated with the leach solution to recover at least one metal. For example, when the metal-containing material is lithium cobalt (III) oxide (LiCoO2), leaching with the leach solution of the present invention enables the recovery of the lithium and/or cobalt metal.

公开(公告)号：US12077834B2

公开(公告)日：2024-09-03

申请号：US16976479

申请日：2019-02-28

Applicant: Arizona Board of Regents on Behalf of the University of Arizona

Inventor： Jaeheon Lee ,  Junmo Ahn

IPC: C22B15/00 ,  C22B3/16 ,  C22B3/06

CPC classification number: C22B15/0071 ,  C22B3/165 ,  C22B3/06

Abstract: The present invention relates to use of alkysulfonic acids, with optionally an oxidant peroxide to leach copper from copper sulfide minerals or copper concentrates, a dichromate oxidant or a nitrate oxidant, or a combination thereof.