Technology of production of aluminosilicate refractories for units processing fluorinated waste

E.A. Sidorina; A.Z. Isagulov; M. Rabatuly; Y. Yang

doi:10.31643/2025/6445.43

Authors

E.A. Sidorina Abylkas Saginov Karaganda Technical University
A.Z. Isagulov Abylkas Saginov Karaganda Technical University
M. Rabatuly Abylkas Saginov Karaganda Technical University
Y. Yang Northeast Petroleum University

DOI:

https://doi.org/10.31643/2025/6445.43

Keywords:

fluorinated carbonaceous materials, crushing, mullite refractories, highly lamellar clay, grinding, mullite-silica products, binding, chamotte, drying, firing.

Abstract

The aluminium production process through the electrolysis of cryolite-alumina melts involves a series of interconnected, sequential, and parallel technological operations, each defined by a specific level of engineering and technological advancement. The development of the modern aluminum industry is closely tied to the adoption of resource-efficient and environmentally friendly technologies, which focus on recycling secondary materials and industrial waste. Fluorinated carbon-based materials release fluorine into the gas phase at relatively low temperatures when heated, and in thermal units processing fluorinated waste, this fluorine, along with alkali metals, will remain in the gas phase. To enhance the durability of furnace linings against the corrosive atmosphere, refractories with the highest possible density (low porosity) and a high concentration of mullite in the matrix (the finely ground component of the batch) are required. These properties can only be achieved in refractory products produced by the semi-dry pressing method, which ensures high grain packing density and leads to the formation of a ceramic mullite bond after firing.

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Author Biographies

E.A. Sidorina, Abylkas Saginov Karaganda Technical University

Master of Technical Sciences, doctoral student of the Department of NTM of Abylkas Saginov Karaganda Technical University, 100027, Republic of Kazakhstan, Karaganda, Nursultan Nazarbayev Ave., 56. ORCID ID: https://orcid.org/0000-0002-4417-8551

A.Z. Isagulov, Abylkas Saginov Karaganda Technical University

Doctor of Technical Sciences, Professor of the Department of NTM, Abylkas Saginov Karaganda Technical University, Nursultan Nazarbayev Ave., 56, 100027, Republic of Kazakhstan, Karaganda. ORCID ID: https://orcid.org/0000-0003-2174-9072

M. Rabatuly, Abylkas Saginov Karaganda Technical University

Ph.D., Acting Associate Professor of the Department Development of mineral deposits of the Abylkas Saginov Karaganda Technical University, Nursultan Nazarbayev Ave., 56, 100027, Republic of Kazakhstan, Karaganda. ORCID ID: https://orcid.org/0000-0002-7558-128X

Y. Yang, Northeast Petroleum University

Candidate of Technical Sciences, Senior Lecturer Northeastern Petroleum University, Research Institute for the Development of Unconventional Oil and Gas Resources, Daqing, 163318, China. ORCID ID: https://orcid.org/0000-0002-8927-3878

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