Method of protection of cathode blocks of aluminium electrolysis cells

Ogoreltceva, Nina; Федорова, Е. Н.; Пузанов, И. И.; Zavadyak, Andrey V.; Nagibin, G. E.; Kirillova, I. A.

doi:10.1016/j.prostr.2020.10.105

Cited by 3 publications

(2 citation statements)

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“…Currently, Li et al (2020) reported that the graphitized carbon content in the carbon cathode is approximately 60–70%. Ogoreltceva et al (2020) proposed a wettable titanium diboride (TiB 2 )-based coating to protect the cathode carbon block. The life expectancy of cathode blocks with TiB 2 –C protective coating was increased by at least four times.…”

Section: Aluminium Electrolysis Processmentioning

confidence: 99%

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A comprehensive review of aluminium electrolysis and the waste generated by it

Liu

Zhang

2023

Waste Manag Res

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Aluminium is produced by electrolysis using alumina (Al2O3) as raw material and cryolite (Na3AlF6) as electrolyte. In this Hall–Héroult process, the energy consumption is relatively large, and solid wastes such as spent anodes and spent pot liner, flue gas and waste heat are generated. Therefore, this article discusses from the perspective of high energy consumption and high pollution and summarizes the methods to reduce energy consumption and solve pollution problems. The functions of carbon anode, carbon cathode, refractory material and sidewall in aluminium electrolysis cells are discussed in detail. The process of aluminium electrolysis and the ways to improve the current efficiency of aluminium electrolysis cells and reduce their energy consumption are outlined. The causes and treatment methods of spent anodes, spent cathodes, spent refractories and spent spot liner are reviewed. The research progress of waste heat recovery and aluminium electrolysis flue gas purification are analysed. And the future research directions of aluminium electrolysis flue gas are provided.

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Section: Aluminium Electrolysis Processmentioning

confidence: 99%

“….anthracite coal, graphite waste and coal pitch through the steps of mixing, shaping, roasting and graphitization. Currently,Li et al (2020) reported that the graphitized carbon content in the carbon cathode is approximately 60-70% Ogoreltceva et al (2020). proposed a wettable titanium diboride (TiB 2 )-based coating to protect the cathode carbon block.…”

mentioning

confidence: 99%