Title:
METHOD FOR REDUCING PERFLUOROCARBON EMISSIONS FROM ALUMINUM ELECTROLYSIS
Document Type and Number:
WIPO Patent Application WO/2023/246499
Kind Code:
A1
Abstract:
The present disclosure relates to the field of aluminum electrolysis, and provides a method for reducing perfluorocarbon emissions from aluminum electrolysis. The method comprises: placing aluminum oxide into an electrolyzer having set parameters for aluminum electrolysis, and regulating feeding parameters of the aluminum oxide to obtain an electrolyte; and adding set contents of LiF, KF, MgF2 and CaF2 into the electrolyte, and regulating the molar ratio of NaF to AlF3 in the electrolyte so as to reduce perfluorocarbon emissions from aluminum electrolysis.
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Inventors:
CHEN KAIBIN (CN)
ZHANG XUGUI (CN)
LI CHANGLIN (CN)
FANG BIN (CN)
WU XUJIAN (CN)
WANG JUNQING (CN)
WANG YUEYONG (CN)
JIAO QINGGUO (CN)
WANG JUNWEI (CN)
LUO LIFEN (CN)
ZHANG FANGFANG (CN)
SHI XU (CN)
ZHANG XUGUI (CN)
LI CHANGLIN (CN)
FANG BIN (CN)
WU XUJIAN (CN)
WANG JUNQING (CN)
WANG YUEYONG (CN)
JIAO QINGGUO (CN)
WANG JUNWEI (CN)
LUO LIFEN (CN)
ZHANG FANGFANG (CN)
SHI XU (CN)
Application Number:
PCT/CN2023/098543
Publication Date:
December 28, 2023
Filing Date:
June 06, 2023
Export Citation:
Assignee:
ALUMINUM CORP CHINA LTD (CN)
International Classes:
C25C3/18
Foreign References:
| CN115110120A | 2022-09-27 | |||
| CN113373481A | 2021-09-10 | |||
| CN101260543A | 2008-09-10 | |||
| CN103352237A | 2013-10-16 | |||
| US20150122665A1 | 2015-05-07 |
Other References:
HUAN XI: "The Low Carbon Road for the Electrolytic Aluminum Industry", CHINA NONFERROUS METALS, vol. 19, 1 October 2010 (2010-10-01), pages 38 - 39, XP093119837
Attorney, Agent or Firm:
BEIJING BRIGHT & RIGHT LAW FIRM (CN)
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