Harmless recovery and utilization of electrolytic aluminum spent cathode carbon block: a comprehensive review

L Dong, F Jiao, W Liu, S Gu, C Wang, W Qin - Journal of Cleaner …, 2023 - Elsevier
Spent cathode carbon block (SCCB) is one of the hazardous solid wastes generated in the
electrolytic aluminum. Traditional landfills contaminate the environment, and waste …

Resource utilization strategies for spent pot lining: A review of the current state

Y Chen, P Li, X Bu, SC Chelgani, Y Kong… - Separation and …, 2022 - Elsevier
During a long-term operation of the aluminum electrolysis cell, the molten salts continuously
infiltrate and corrode the pot lining, resulting in a huge amount of hazardous waste after the …

Sustainable preparation of high-calorific value and low-N and S energy products through the low-temperature alkali fusion of coal gasification fine ash

Z Chen, X Tian, J Hou, Z Li, Y Xu, Y Feng - Environmental Research, 2023 - Elsevier
Coal gasification fine ash (CGFA) is characterized by high yield, high carbon content, and
difficult recovery. This results in waste of coal resources and serious environmental …

Regeneration of raw materials for aluminum electrolysis from spent carbon anodes via a closed-loop environmentally-friendly process based on aluminum–fluorine …

L Ma, W Yang, Y Cui, B Chen, J Jiang, Y Lin - Journal of Cleaner …, 2023 - Elsevier
Spent carbon anode (SCA) discharged from the aluminum electrolysis industry is an
unavoidable solid waste with an estimated production of 700 kilotons in 2021, which has …

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

X Li, Y Liu, T Zhang - Waste Management & Research, 2023 - journals.sagepub.com
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 …

The recycling of carbon-rich solid wastes from aluminum electrolytic cells: a review

L Ma, Z Qiu, Y Tang, W Yang, B Chen, J Jiang… - Environmental Chemistry …, 2024 - Springer
6 Million metric tons of spent carbon electrodes modify carbon-rich solid wastes from
aluminum electrolysis are produced annually, threatening ecosystems by cyanide and …

Hierarchically porous glass–ceramics by alkaline activation and crystallization from municipal solid waste incineration ashes

J Zhang, X Zhang, J Yuan, B Liu, H Shen, J Liu… - Journal of Cleaner …, 2022 - Elsevier
As a hazardous waste, municipal solid waste incineration (MSWI) fly ash poses a serious
threat to the environment, and considerable efforts have been made to achieve its harmless …

Study on ultrasonic leaching and recovery of fluoride from spent cathode carbon of aluminum electrolysis

C Wang, S Mao, L Li - RSC advances, 2023 - pubs.rsc.org
Under the assistance of ultrasound, the fluoride in the spent cathode carbon of aluminum
electrolysis was recovered by the process of washing first and then leaching. The effects of …

Glass-based foam from alkali activation: A review on effect of primary foaming parameters on microstructure and density

AM Hassan, NM Bunnori, S Ramesh, CY Tan… - … and Building Materials, 2024 - Elsevier
Alkali activation techniques (AATs) are utilized to produce glass-based foams (GBFs)
including glass or glass ceramic foam, due to their eco-friendly process. Numerous studies …

Recovery of fluoride from spent cathode carbon block by combustion combined with water leaching process

C Zhu, S Zhou, Y Wei, B Li, H Wang - Journal of Cleaner Production, 2023 - Elsevier
Spent cathode carbon blocks (SCCBs) is a kind of hazardous waste that can be harmful to
the environment. In this study, a process of high-temperature combustion combined with …