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HomeMaterials Science ForumMaterials Science Forum Vol. 1031On the Mechanism of Silica Transition into Alumina...

On the Mechanism of Silica Transition into Alumina Solutions in the Leaching of Nepheline Sinters

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Abstract:

The article deals with the mechanism of transition of silicon to aluminate solutions in the process of leaching aluminum sinters in the production of alumina from nepheline. It was found that features of the transition in silica aluminate solutions by leaching cakes of various types relate to the structure of two-calcium silicate, and the dependence of reactions in the aluminate solution, its temperature and composition. A pattern has been established that determines the relationship between the SiO₂/Al₂O₃ ratio in the list and the concentration of silica in aluminate solutions after leaching.

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Workshop Advances in Materials Sciences

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Periodical:

Materials Science Forum (Volume 1031)

Pages:

190-195

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.1031.190

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Online since:

May 2021

Authors:

Ekaterina Siziakova, Pavel Ivanov*

Keywords:

Aluminate Solution, Leaching, Sintering, Tobermorite, Two-Calcium Silicate

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* - Corresponding Author

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