Possibilities of iron recovery from red mud

• Autorzy: Saternus Mariola

Identyfikatory

DOI

10.15199/24.2019.2.1

Warianty tytułu

PL

Możliwości odzysku żelaza z czerwonego szlamu

• Języki publikacji: EN

Abstrakty

EN

From year to year, the production of aiuminiuni is increasing, however only 1/4 of its production is coming from recycling process; therefore, bauxite ores play the dominant role in the production of aluminium. The production process from ore is based on two stages: obtaining aluminium oxide in the Bayer method and afier melting it in the cryolite its electrolysis. Unfortunately, the amount ofimpurities, including red mud, are obtained in the production of alumina. Due to the high alkalinity ofthis waste, there are many difiiculties with its management. The article briefly presents the subject ofthe problem. Particuiar attention is paid to the possibility ofred mud utilization, especially recovery ofiron. An overview of the patented and used methods ofiron recovery from red mud with further prospects in this area is presented.

PL

Z roku na rok obserwuje się coraz większą produkcję aluminium, z czego tylko ¼ to aluminium wtórne z przetwarzania złomu aluminiowego. Dominującą rolę w produkcji aluminium wciąż stanowią rudy boksytowe. Proces produkcji z rud bazuje na dwóch etapach: otrzymywaniu tlenku glinu w metodzie Bayera oraz po stopieniu w kriolicie jego elektrolizę. Niestety przy produkcji tlenku glinu otrzymuje się znaczne ilości zanieczyszczeń, w tym czerwony szlam. Ze względu na wysoką alkaliczność tego odpadu istnieje wiele trudności z jego zagospodarowaniem. W artykule krótko przedstawiono charakterystykę czerwonego szlamu oraz możliwości jego utylizacji i zastosowania w przemyśle. Szczególną uwagę poświęcono możliwości odzysku żelaza z czerwonego szlamu. Przedstawiono przegląd opatentowanych i stosowanych metod odzysku żelaza z czerwonego szlamu wraz z dalszymi perspektywami w tym zakresie.

Słowa kluczowe

EN

aluminium; red mud; iron recovery

PL

aluminium; odzysk żelaza; szlam czerwony

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Hutnik, Wiadomości Hutnicze
• Rocznik: 2019
• Tom: Vol. 86, nr 2
• Strony: 38--42
• Opis fizyczny: Bibliogr. 39 poz., fig., tab.

Twórcy

autor

Saternus Mariola

• Politechnika Śląska, Wydział Inzynierii Materiałowej i Metalurgii, ul. Kraśnińskiego 8, 40-019 Katowice

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).