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Gas-Phase Treatment of Dump Tailings from Metallurgical Plants in Nitrating Media to Enhance Nickel Extractionстатья
- Авторы: Kulyukhin S.A., Nevolin Yu M., Seliverstov A.F.
- Журнал: Theoretical Foundations of Chemical Engineering
- Том: 56
- Номер: 4
- Год издания: 2022
- Издательство: Maik Nauka/Interperiodica Publishing
- Местоположение издательства: Russian Federation
- Первая страница: 578
- Последняя страница: 583
- Оригинальные версии: Газофазная обработка отвальных хвостов металлургических комбинатов в нитрирующих средах для повышения выхода никеля
- DOI: 10.1134/S0040579522040157
- Аннотация: A new approach to the processing of the dump waste product stored in the tailings dumps of the nickel production enterprise Punda Gourda (Cuba) has been proposed to increase the yield of Ni obtained from it. The approach is based on gas-phase treatment of the dump waste product in an HNO3(vapor)–air or NOх–H2O(vapor)–air atmosphere followed by leaching of Ni into water. It was shown that the use of nitrating media allows efficient leaching of nickel from the dump waste product. It was found that preliminary treatment of the dump waste product in a nitrating atmosphere at 150°C for 5 h allows extraction of 73–81% Ni of its total content in the dump waste product. The degree of extraction of Fe into water does not exceed ~1% of its total content in the dump waste product in this case.
- Добавил в систему: Кулюхин Сергей Алексеевич