公开(公告)号：US20250066878A1

公开(公告)日：2025-02-27

申请号：US18811796

申请日：2024-08-22

Applicant: KOREA ZINC CO., LTD. ,  KEMCO

Inventor： Heon Sik CHOI ,  Je Joong LEE

IPC: C22B3/00 ,  C22B1/02 ,  C22B3/04 ,  C22B3/22 ,  C22B3/38 ,  C22B3/44 ,  C22B5/12 ,  C22B23/02 ,  C22B26/12

Abstract: Provided herein is a nickel recovering method, comprising: (A-i) a reduction heat treatment process for thermally treating a first raw material containing nickel and lithium; (B) a first leaching process for leaching the heat-treated product produced by the reduction heat treatment process; (A-ii) a roasting process for thermally treating a second raw material containing nickel and sulfur; (C) a second leaching process for leaching the first leaching residue produced by the first leaching process and calcine produced by the roasting process; (D) a neutralization process for neutralizing the second leachate produced by the second leaching process; (E) a purification process for removing impurities contained in the neutralized solution produced by the neutralization process; and (F) a reduction process for performing a hydrogen reduction method on the purified solution produced by the purification process to recover nickel from the purified solution.

公开(公告)号：US20250066875A1

公开(公告)日：2025-02-27

申请号：US18811789

申请日：2024-08-22

Applicant: KOREA ZINC CO., LTD. ,  KEMCO

Inventor： Heon Sik CHOI ,  Je Joong LEE

IPC: C22B23/02 ,  C01G53/10 ,  C22B1/02 ,  C22B3/00 ,  C22B3/08 ,  C22B3/26 ,  C22B3/44 ,  C22B5/12 ,  C22B26/12

Abstract: Provided herein is a nickel recovering method, comprising: (A-i) a reduction heat treatment process for thermally treating a first raw material containing nickel and lithium; (B) a first leaching process for leaching the heat-treated product produced by the reduction heat treatment process; (A-ii) a roasting process for thermally treating a second raw material containing nickel and sulfur; (C) a second leaching process for leaching the first leaching residue produced by the first leaching process and calcine produced by the roasting process; (D) a neutralization process for neutralizing the second leachate produced by the second leaching process; and (E) a purification process for removing impurities contained in the neutralized solution produced by the neutralization process.

公开(公告)号：US20240401168A1

公开(公告)日：2024-12-05

申请号：US18802137

申请日：2024-08-13

Applicant: Helios Project Ltd.

Inventor： Jonathan Hausner ,  Jonathan Geifman ,  Linoam Eliad ,  Yossi Gofer ,  Baruch Hirsh ,  Oran Lori

IPC: C22B5/18 ,  C21B15/00 ,  C22B15/00 ,  C22B19/20 ,  C22B23/02 ,  C22B26/10 ,  C22B34/32 ,  C22B47/00

Abstract: The present disclosure generally relates to processes for the reduction of transition metals using alkali metals to produce reduced transition metals.

公开(公告)号：US20240283043A1

公开(公告)日：2024-08-22

申请号：US18567440

申请日：2022-03-14

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Yu Yamashita

IPC: H01M10/54 ,  C22B7/00 ,  C22B23/02

CPC classification number: H01M10/54 ,  C22B7/004 ,  C22B23/02

Abstract: Provided is a method of effectively separating impurities, in particular, iron contained in a raw material to be processed, and recovering valuable metal at a high rate of recovery. Provided is a method of producing valuable metal including cobalt (Co), comprising: a preparation step for preparing a raw material containing at least iron (Fe) and the valuable metal; a fusing step for heating and fusing the raw material into a melt and thereafter making the melt into a fusion containing alloy and slag; and a slag separation step for separating the slag out from the fusion to recover alloy containing the valuable metal. In the preparation step, the mass ratio of Fe/Co in the raw material is controlled to 0.5 or less. In the fusion step, the oxygen partial pressure in the melt generated by heating and fusing the raw material is made to be 10−9.0 atm or less.

公开(公告)号：US20240271302A1

公开(公告)日：2024-08-15

申请号：US18633051

申请日：2024-04-11

Applicant: Peregrine Hydrogen Inc.

Inventor： Stefan Omelchenko ,  Matthew Shaner ,  Ian McKay

IPC: C25B15/08 ,  C01B25/28 ,  C01C1/04 ,  C01C1/242 ,  C22B3/00 ,  C22B3/08 ,  C22B5/12 ,  C22B23/02 ,  C25B1/04 ,  C25B1/22

CPC classification number: C25B15/081 ,  C01B25/28 ,  C01C1/04 ,  C01C1/242 ,  C22B3/08 ,  C22B5/12 ,  C22B23/02 ,  C22B23/043 ,  C25B1/04 ,  C25B1/22 ,  C25B15/087

Abstract: A method can include combusting a sulfur precursor in air to form sulfur dioxide, providing the sulfur dioxide to an electrolyzer with at least a threshold gauge pressure, providing water to the electrolyzer, and oxidizing the sulfur dioxide to sulfuric acid and reducing the water to hydrogen in the electrolyzer.

公开(公告)号：US20240204274A1

公开(公告)日：2024-06-20

申请号：US18287251

申请日：2022-03-25

Applicant: SUMITOMO METAL MINING CO., LTD.

Inventor： Takayuki Yabe ,  Yu Yamashita

IPC: H01M10/54 ,  C22B5/10 ,  C22B7/00 ,  C22B23/02

CPC classification number: H01M10/54 ,  C22B5/10 ,  C22B7/004 ,  C22B23/02

Abstract: The present invention provides a method for producing a valuable metal from a starting material that contains waste lithium ion batteries, the method being capable of effectively obtaining a metal which has a reduced phosphorus content. The present invention provides a method for producing a valuable metal from a starting material that contains waste lithium ion batteries containing phosphorus, the method comprising: a melting step in which the starting material is melted, thereby obtaining a melt; and a slag separation step in which slag is separated from the melt and an alloy containing a valuable metal is recovered. According to the present invention, an alloy is recovered, while making it sure that the recovery ratio of cobalt from the starting material is from 95.0% to 99.6%, thereby suppressing the phosphorus content in the alloy to 0.1% by mass or less.

公开(公告)号：US20240132995A1

公开(公告)日：2024-04-25

申请号：US18278427

申请日：2022-03-08

Applicant: MITSUBISHI MATERIALS CORPORATION

Inventor： Hajime Kawasaki ,  Atsuhiro Nabei

IPC: C22B9/16 ,  C22B7/00 ,  C22B15/00 ,  C22B23/02 ,  H01M10/54

CPC classification number: C22B9/16 ,  C22B7/003 ,  C22B15/0028 ,  C22B15/0056 ,  C22B23/02 ,  H01M10/54

Abstract: This method for recovering a valuable metal from a used LIB includes: a step of adding, to an electrode assembly taken out of a detoxified used LIB, metallic zinc in an excess amount relative to a mass of the electrode assembly; a step of heating a mixture of the electrode assembly and the metallic zinc to form a molten metal; a step of taking out the molten metal and separating the molten metal into an alloy metal and a slag; and a step of heating the alloy metal to volatilize zinc in the alloy metal, and thereby, recovering an alloy metal of a valuable metal.

公开(公告)号：US20240055681A1

公开(公告)日：2024-02-15

申请号：US18259038

申请日：2021-12-21

Applicant: TESLA, INC.

Inventor： Feng Zou ,  Quanmin Yang ,  Vladimir Paserin ,  Alex Carpenter

IPC: H01M10/54 ,  C22B7/00 ,  C22B23/02 ,  C22B23/06 ,  C22B26/12 ,  C22B3/22

CPC classification number: H01M10/54 ,  C22B7/002 ,  C22B23/021 ,  C22B23/028 ,  C22B23/065 ,  C22B26/12 ,  C22B3/22

Abstract: A method for recovering the valuable materials from energy storage devices (e.g., spent rechargeable lithium batteries, especially those batteries using nickel-based or nickel and cobalt containing cathode materials) are described. In particular, the proposed method applies carbonyl technology, also known as vapometallurgy, to regenerate pure materials which can be reused as raw materials for making active cathode materials for new lithium batteries.

公开(公告)号：US20240042523A1

公开(公告)日：2024-02-08

申请号：US18268723

申请日：2021-12-14

Applicant: THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO

Inventor： Mansoor BARATI SEDEH ,  Samuel Walton MARCUSON ,  Fanmao WANG

IPC: B22F9/20 ,  C22B1/16 ,  C22B23/02

CPC classification number: B22F9/20 ,  C22B1/16 ,  C22B23/023 ,  B22F2998/10 ,  B22F2201/01 ,  B22F2301/35

Abstract: A thermal two-step process for producing ferronickel (FeNi) alloy particles from a nickel-containing sulfide material is provided. The process comprises heating a solid mixture comprising a nickel-containing sulfide material and an iron-containing material in agglomerated form, in an inert or reducing atmosphere to a heating temperature at which the solid mixture is partially molten and obtaining a hot mixture comprising a nickel-containing liquid phase, gangue, and FeNi alloy particles, and then controlled cooling of the hot mixture to increase the particle size and Ni content of said FeNi alloy particles and obtaining a processed material comprising said FeNi alloy particles having an increased particle size and an increased Ni content. Finally, the FeNi alloy particles are separated from the processed material. There is also provided FeNi alloy particles obtained from the process.

公开(公告)号：US20240002978A1

公开(公告)日：2024-01-04

申请号：US18213340

申请日：2023-06-23

Applicant: THE SECRETARY, MINISTRY OF ELECTRONICS AND INFORMATION TECHNOLOGY, GOVT. OF INDIA ,  THE DIRECTOR GENERAL, CENTRE FOR MATERIALS FOR ELECTRONICS TECHNOLOGY (C-MET)

Inventor： Rajesh Kumar Sivasankaran NAIR ,  Ajay KAUSHAL ,  Amit BARNWAL ,  Sandip CHATTERJEE ,  Ratheesh RAVENDRAN

IPC: C22B23/02 ,  H01M10/54 ,  C22B15/00 ,  C22B26/12 ,  C22B5/02 ,  B22F9/04

CPC classification number: C22B23/025 ,  H01M10/54 ,  C22B15/008 ,  C22B26/12 ,  C22B5/02 ,  B22F9/04 ,  B22F2301/10 ,  B22F2301/052

Abstract: The present disclosure relates to a method for the recovery of metals and metal alloys from waste Lithium-ion batteries. The method of the present disclosure uses a smelting process that is energy-efficient, cost-effective and requires comparatively reduced time. Further, the method of the present disclosure has a high metal extraction efficiency. Furthermore, the heat treatment of the residual particulate matter results in the formation of binary Co—Ni alloy and prevents the formation of Co—Ni—Mn ternary alloy during smelting.