Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019)

Use of Leaching Cake from Refractory Lining of Dismantled Electrolysers in Cement Production

Authors
A.A. Petrovskiy, N.V. Nemchinova, A.A. Tyutrin, N.A. Korepina
Corresponding Author
A.A. Petrovskiy
Available Online August 2019.
DOI
https://doi.org/10.2991/isees-19.2019.91How to use a DOI?
Keywords
aluminium production; electrolyser; cathode lining; spent firebrick lining; leaching cake; cement clinker.
Abstract

A hydrometallurgical technology has been proposed for processing the refractory part of the lining of aluminum production electrolysers dismantled and disabled for overhaul. Fluorine-containing compounds are transferred to the solution, which allows obtaining cryolite for being used in the electrolysis process. It is recommended to use solid residue from leaching (cake) with a minimum content of alkalis and fluorine as an additive to the mixture for cement production. According to the results of experiments on obtaining portland cement by traditional firing technology, the limiting content of alkali metal oxides (not higher than 4.5% by weight, calculated as Na2O) in the leaching cake was determined, the optimum content of this additive in the charge is from 5 to 12% depending on chemical composition of lime used.

Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019)
Series
Atlantis Highlights in Material Sciences and Technology
Publication Date
August 2019
ISBN
978-94-6252-769-0
ISSN
2590-3217
DOI
https://doi.org/10.2991/isees-19.2019.91How to use a DOI?
Copyright
© 2019, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - A.A. Petrovskiy
AU  - N.V. Nemchinova
AU  - A.A. Tyutrin
AU  - N.A. Korepina
PY  - 2019/08
DA  - 2019/08
TI  - Use of Leaching Cake from Refractory Lining of Dismantled Electrolysers in Cement Production
BT  - Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019)
PB  - Atlantis Press
SP  - 358
EP  - 363
SN  - 2590-3217
UR  - https://doi.org/10.2991/isees-19.2019.91
DO  - https://doi.org/10.2991/isees-19.2019.91
ID  - Petrovskiy2019/08
ER  -