- Tytuł:
- Processing of Titanium-Magnesium Production Waste
- Autorzy:
-
Karshyga, Zaure
Ultarakova, Almagul
Lokhova, Nina
Yessengaziyev, Azamat
Kassymzhanov, Kaisar - Powiązania:
- https://bibliotekanauki.pl/articles/2173227.pdf
- Data publikacji:
- 2022
- Wydawca:
- Polskie Towarzystwo Inżynierii Ekologicznej
- Tematy:
-
waste
sludge
dust
leaching
sublimation
ammonium bifluoride
calcium nitrate
amorphous silicon dioxide - Opis:
- The article presents the results of research on the processing of such wastes of titanium-magnesium production as sludge from sludge dumps and fine dump dusts from the electric smelting of ilmenite concentrates. The results of nitric acid leaching of sludge with the transfer of calcium into solution and the production of calcium nitrate are given. Titanium-containing cake after nitric acid leaching of sludge and electric smelting dust cannot be returned to the technological process due to its high silica content, so the silicon impurity was removed from their composition. Silicon removal was performed by fluoroammonium processing with sublimation of hexafluorosilicate compounds. An amorphous silicon dioxide product was obtained, after ammonia hydrolysis of silicon-containing sublimations and appropriate treatment of the sediment. The residue from the sublimation of silicon fluorides consists mainly of titanium-containing phases and can be suitable for return for electrofusion after ammonia treatment.
- Źródło:
-
Journal of Ecological Engineering; 2022, 23, 7; 215--225
2299-8993 - Pojawia się w:
- Journal of Ecological Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł