| Issue |
E3S Web of Conf.
Volume 402, 2023
International Scientific Siberian Transport Forum - TransSiberia 2023
|
|
|---|---|---|
| Article Number | 14034 | |
| Number of page(s) | 6 | |
| Section | Materials Chemistry and Physics | |
| DOI | https://doi.org/10.1051/e3sconf/202340214034 | |
| Published online | 19 July 2023 | |
Processing of serpentenites of the Arvaten deposit of Uzbekistan with the use of ammonium sulphate
Institute of General and Inorganic Chemistry of Uzbek Academy of Sciences, Tashkent, Uzbekistan
* Corresponding author: pirimov0978@mail.ru
The article presents the results of a study of the processes of obtaining magnesium oxide by fusing serpentinites of the Arvaten deposit in the presence of ammonium sulfate, followed by grinding and treatment with water to separate silica from the suspension, neutralizing the filtrate with ammonia to pH 8.5 for precipitation and separation of impurity metal ions, precipitation and separation of ions magnesium from solution using ammonia and ammonium carbonate, thermal decomposition of magnesium corbanate to obtain magnesium oxide. It has been established that the use of ammonium sulfate for fusion of serpentite at a ratio of serpentenite: (NH4)2SO4 = 100: 201.77 and further processing of the resulting solutions allows you to obtain magnesium oxide with a composition (wt.%): MgO - 97.55; Fe2O3 - 0.86; A12O3 - 0.12; CaO - 0.18; SO3 - 0.48.
© The Authors, published by EDP Sciences, 2023
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