An Energy-Efficient and Environmentally Friendly Reductant in Magnesium Metal Production: AlDross

Yücel, Onuralp; Satılmış, Umut Ali; BUĞDAYCI, Mehmet; Turan, Ahmet

doi:10.1007/978-3-031-81061-9_6

An Energy-Efficient and Environmentally Friendly Reductant in Magnesium Metal Production: AlDross

Yazarlar (4)

Prof. Dr. Onuralp Yücel İstanbul Teknik Üniversitesi, Türkiye

Umut Ali Satılmış
İstanbul Teknik Üniversitesi, Türkiye

Doç. Dr. Mehmet BUĞDAYCI Yalova Üniversitesi, Türkiye

Doç. Dr. Ahmet Turan Yeditepe University, Türkiye

Bildiri Türü	Tebliğ/Bildiri	Bildiri Dili	İngilizce
Bildiri Alt Türü	Tam Metin Olarak Yayınlanan Tebliğ (Uluslararası Kongre/Sempozyum)
Bildiri Niteliği
DOI Numarası	10.1007/978-3-031-81061-9_6
Kongre Adı	Minerals Metals and Materials Series
Kongre Tarihi	/
Basıldığı Ülke		Basıldığı Şehir
UAK Araştırma Alanları

Özet

The vacuum metallothermic magnesiumMagnesium production process (the Pidgeon Process) is the leading method of magnesiumMagnesium production in the world. In this technique, theMg Mg content of calcined dolomite (CaO·MgO) is reduced with ferrosilicon (FeSi) to obtain an intermediate product called crown Mg. Due to thermodynamic constraints, the process is carried out in steel retorts under vacuum (1–10 mbar) at temperatures between 1200–1300 °C. Since FeSi production can be carried out with high electrical energy consumption and high CO2 footprint, it is a techno-economicTechno-economics necessity to work on reductants that can operate at lower reduction temperatures, providing both low process GWP (global warming potential) and low process CO2 emissions. In this study, the effects of a product containing 53.50% metallic Al obtained from Al drossAl Dross as a substitute reducing material instead of FeSi in Mg production were investigated. In experimental studies, the mixtures determined after stoichiometric calculations and thermochemical simulations were processed in a vacuum atmosphere (1 mbar) at 1200 and 1300 °C with processing times of up to 360 min. In the experiment, conducted for 6 h at 1300 °C, where 150% of the stoichiometric aluminum addition amount was used, theMg Mg content in the process slag decreased to 5.31% by weight and the reduction recovery rate was calculated as 80.81%. As a result of the reduction lasting 240 min with the addition of 5% CaF2 to the charge under similar conditions, the amount of Mg remaining in the slag decreased to 2.61% and the highest recovery value achieved in this study is 90.87%.

Anahtar Kelimeler

Al dross | Mg | Recycling | Sustainability | Vacuum metallothermic reduction

BM Sürdürülebilir Kalkınma Amaçları

Atıf Sayıları
Scopus	1
Google Scholar	1

An Energy-Efficient and Environmentally Friendly Reductant in Magnesium Metal Production: AlDross

An Energy-Efficient and Environmentally Friendly Reductant in Magnesium Metal Production: AlDross

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