Processing of Titanium-Magnesium Production Waste

• Autorzy: Karshyga Zaure , Ultarakova Almagul , Lokhova Nina , Yessengaziyev Azamat , Kassymzhanov Kaisar

Identyfikatory

DOI

10.12911/22998993/150004

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

waste; sludge; dust; leaching; sublimation; ammonium bifluoride; calcium nitrate; amorphous silicon dioxide

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2022
• Tom: Vol. 23, nr 7
• Strony: 215--225
• Opis fizyczny: Bibliogr. 31 poz., rys., tab.

Twórcy

autor

Karshyga Zaure

• Institute of Metallurgy and Ore Benefication, Satbayev University, JSC, Shevchenko St., 29/133, KR 050010, Almaty, Kazakhstan

• https://orcid.org/0000-0002-3025-7363

autor

Ultarakova Almagul

• Institute of Metallurgy and Ore Benefication, Satbayev University, JSC, Shevchenko St., 29/133, KR 050010, Almaty, Kazakhstan

• https://orcid.org/0000-0001-9428-8508

autor

Lokhova Nina

• Institute of Metallurgy and Ore Benefication, Satbayev University, JSC, Shevchenko St., 29/133, KR 050010, Almaty, Kazakhstan

• https://orcid.org/0000-0001-9436-5462

autor

Yessengaziyev Azamat

• Institute of Metallurgy and Ore Benefication, Satbayev University, JSC, Shevchenko St., 29/133, KR 050010, Almaty, Kazakhstan

• https://orcid.org/0000-0002-4989-4119

autor

Kassymzhanov Kaisar

• Institute of Metallurgy and Ore Benefication, Satbayev University, JSC, Shevchenko St., 29/133, KR 050010, Almaty, Kazakhstan

• https://orcid.org/0000-0001-8062-8655

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