公开(公告)号：US20240191382A1

公开(公告)日：2024-06-13

申请号：US18287659

申请日：2022-04-25

Applicant: CENTRAL SOUTH UNIVERSITY

Inventor： Zhongwei ZHAO ,  Yuntao LEI ,  Fenglong SUN

IPC: C25C3/36 ,  B01D3/10 ,  C22C1/00 ,  C22C28/00 ,  C25C7/02

CPC classification number: C25C3/36 ,  B01D3/10 ,  C22C1/00 ,  C22C28/00 ,  C25C7/025

Abstract: A method for preparing rare earth alloys by molten salt electrolysis using rare earth oxides as the raw material is provided, where the electrolytic cell used is divided into the anode chamber and the cathode chamber containing melts such as anolyte, catholyte and liquid alloy. The method has the advantages of continuous production, high operability, low requirements on raw material purity and high quality of rare earth alloy products.

公开(公告)号：US20240183050A1

公开(公告)日：2024-06-06

申请号：US18287654

申请日：2022-04-25

Applicant: CENTRAL SOUTH UNIVERSITY

Inventor： Zhongwei ZHAO ,  Fenglong SUN ,  Yuntao LEI

IPC: C25C3/02 ,  C25C7/02

CPC classification number: C25C3/02 ,  C25C7/025

Abstract: A method for preparing lithium metal by molten salt electrolysis is provided. The method is carried out by using an electrolytic cell. The electrolytic cell is divided into an anode chamber and a cathode chamber. The anode chamber is filled with an anode molten salt electrolyte and inserted with an anode, and the cathode chamber is filled with a cathode molten salt electrolyte and inserted with a cathode. The bottom of the electrolytic cell is further filled with a liquid alloy. After the electrolytic cell is powered on, raw materials including lithium chloride, lithium carbonate, lithium hydroxide, lithium oxide, etc. are added into the anode chamber so as to obtain a lithium metal product in the cathode chamber. The method of the present invention has advantages such as continuous production, low requirements for a lithium chloride raw material, and high purity of a lithium metal product.

公开(公告)号：US20240141529A1

公开(公告)日：2024-05-02

申请号：US18288406

申请日：2022-04-25

Applicant: CENTRAL SOUTH UNIVERSITY

Inventor： Zhongwei ZHAO ,  Fenglong SUN ,  Yuntao LEI

IPC: C25C3/18 ,  C22C9/01 ,  C22C13/00 ,  C22C21/12 ,  C22C21/18 ,  C22C28/00 ,  C25C3/08

CPC classification number: C25C3/18 ,  C22C9/01 ,  C22C13/00 ,  C22C21/12 ,  C22C21/18 ,  C22C28/00 ,  C25C3/08

Abstract: A method for producing metal aluminum by molten salt electrolysis of aluminum oxide is provided. The method for producing metal aluminum by molten salt electrolysis of aluminum oxide uses an electrolytic cell. The electrolytic cell is divided into an anode chamber and a cathode chamber, and is filled with melts such as anolyte, catholyte and an alloy medium. The electrolytic cell is powered on to operate and an aluminum oxide raw material is added to the anode chamber to obtain high-purity metal aluminum in the cathode chamber. The disclosure provides an aluminum electrolysis method having the advantages of strong electrolysis operation adaptability, large selectivity of electrolysis materials and raw materials, being energy saving and environmentally friendly, and being capable of directly producing refined aluminum or high-purity aluminum.