Title:
METHOD FOR PRODUCING METAL ALUMINUM BY MOLTEN SALT ELECTROLYSIS OF ALUMINUM OXIDE
Document Type and Number:
WIPO Patent Application WO/2022/237511
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of aluminum electrolysis, and in particular relates to a method for producing metal aluminum by molten salt electrolysis of aluminum oxide. The method for producing metal aluminum by molten salt electrolysis of aluminum oxide according to the present invention 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 material is added to obtain high-purity metal aluminum in the cathode chamber. The present invention 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.
Inventors:
ZHAO ZHONGWEI (CN)
SUN FENGLONG (CN)
LEI YUNTAO (CN)
SUN FENGLONG (CN)
LEI YUNTAO (CN)
Application Number:
PCT/CN2022/088925
Publication Date:
November 17, 2022
Filing Date:
April 25, 2022
Export Citation:
Assignee:
UNIV CENTRAL SOUTH (CN)
International Classes:
C25C3/06
Foreign References:
| GB891369A | 1962-03-14 | |||
| CN1143693A | 1997-02-26 | |||
| US4222830A | 1980-09-16 | |||
| CN110983378A | 2020-04-10 | |||
| CN108546964A | 2018-09-18 | |||
| CN213113544U | 2021-05-04 | |||
| CN105970250A | 2016-09-28 |
Attorney, Agent or Firm:
CHANGSHA RONG ZHI PATENT AGENCY (CN)
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