Study of Extraction of Rare Earth Elements from Hard Coal Fly Ash

• Autorzy: Znamenackova Ingrid , Dolinska Silvia , Hredzak Slavomir , Cablik Vladimir , Lovas Michal , Gesperova Dana

Identyfikatory

DOI

10.29227/IM-2020-01-71

Warianty tytułu

PL

Badanie ekstrakcji pierwiastków ziem rzadkich z popiołu węgla kamiennego

• Języki publikacji: EN

Abstrakty

EN

Rare earth elements (REEs) extraction from wastes and/or by-products is alternative possibility of their winning. The occurrence of REEs, namely 50.1 ppm of La, 100.1 ppm of Ce and 44.3 ppm of Nd was confirmed in solid fly ash samples from the coal fired heating plant (TEKO, Inc. Košice, eastern Slovakia). The submitted contribution presents laboratory results of REEs leaching from coal fly ash using 3M HCl, HNO3, H2SO4 and H3PO4 at 80°C during 120 min. It was found, that recoveries 65.5% of La, 64.4% Ce and 64.3% of Nd into liquor may be attained after grain size reduction to below 5 μm.

PL

Ekstrakcja pierwiastków ziem rzadkich (REEs) z odpadów oraz/albo z produktów jest alternatywną możliwością ich uzyskania. Obecność REEs, konkretnie 50,1 ppm La, 100,1 ppm Ce oraz 44,2 ppm Nd została potwierdzona w próbkach popiołu z węgla z elektrociepłowni (TEKO, Inc. Košice, wschodnia Słowacja). Prezentowany artykuł pokazuje wyniki laboratoryjne ługowania REEs z popiołu węglowego za pomocą 3M HCl, HNO3, H2SO4 oraz H3PO4 w 80°C w czasie 120 minut. Odkryto, że odzysk 65,5% La, 64,4% Ce oraz 64,3% Nd w formie ciekłej może być osiągnięte przy redukcji wymiaru ziaren do poniżej 5 µm.

Słowa kluczowe

EN

coal fly ash; REEs extraction; inorganic acids

PL

popiół węglowy; ekstrakcja REEs; kwasy nieorganiczne

• Wydawca: Polskie Towarzystwo Przeróbki Kopalin
• Czasopismo: Inżynieria Mineralna
• Rocznik: 2020
• Tom: no. 1, vol. 2
• Strony: 229--232
• Opis fizyczny: Bibliogr. 12 poz., tab., wykr.

Twórcy

autor

Znamenackova Ingrid

• VŠB – Technical University of Ostrava, Faculty of Mining and Geology, Institute of Clean Technologies for Extraction and Utilization of Energy Resources, 17. listopadu 15, 708 00 Ostrava-Poruba, Czech Republic

autor

Dolinska Silvia

• VŠB – Technical University of Ostrava, Faculty of Mining and Geology, Institute of Clean Technologies for Extraction and Utilization of Energy Resources, 17. listopadu 15, 708 00 Ostrava-Poruba, Czech Republic

autor

Hredzak Slavomir

• VŠB – Technical University of Ostrava, Faculty of Mining and Geology, Institute of Clean Technologies for Extraction and Utilization of Energy Resources, 17. listopadu 15, 708 00 Ostrava-Poruba, Czech Republic

autor

Cablik Vladimir

• Institute of Geotechnics of SAS, Watsonova 45, 040 01 Košice, Slovak Republic

autor

Lovas Michal

• VŠB – Technical University of Ostrava, Faculty of Mining and Geology, Institute of Clean Technologies for Extraction and Utilization of Energy Resources, 17. listopadu 15, 708 00 Ostrava-Poruba, Czech Republic

autor

Gesperova Dana

• VŠB – Technical University of Ostrava, Faculty of Mining and Geology, Institute of Clean Technologies for Extraction and Utilization of Energy Resources, 17. listopadu 15, 708 00 Ostrava-Poruba, Czech Republic

Bibliografia

• 1. BLISSETT, R.S.; SMALLEY, N.; ROWSON, N.A. An investigation into six coal fly ashes from the United Kingdom and Poland to evaluate rare earth element content. In Fuel, 119, 2014, p. 236–239.
• 2. CAO, S.; ZHOU, C.; PAN, J.; LIU, C.; TANG, M.; JI, W.; HU, T.; ZHANG, N. Study on influence factors of leaching of rare earth elements from coal fly ash. In Energy Fuels 32, 2018, 7, p. 8000-8005.
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• 11. WANG, Z.; DAI, S.; ZOU, J.; FRENCH, D.; GRAHAM, I.T. Rare earth elements and yttrium in coal ash from the Luzhou power plant in Sichuan, Southwest China: Concentration, characterization and optimized extraction. In International Journal of Coal Geology 203, 2019, p. 1-14.
• 12. ZHAO, L.; DAI. S.; GRAHAM, I.T.; LI, X.; LIU, H.; SONG, X.; HOWER, J.C.; ZHOU, Y. Cryptic sediment-hosted critical element mineralization from eastern Yunnan Province, southwestern China: Mineralogy, geochemistry, relationship to Emeishan alkaline magmatism and possible origin. In Ore Geology Reviews 80, 2017, p. 116-140.

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).