ã€China Aluminum Network】 Aluminum ash is the product of cooling slag produced in electrolytic aluminum or cast aluminum production process. Its main components are metal w (Al) 15% to 20%, aluminum oxide and dioxide silicon.
The composition of aluminum ash from different sources will be different:
Electrolytic aluminum ash: w(Al)25.58, w(Al2O3)31.55, w(SiO2)5.56, w(Na2O)2~3, w(MgO)2.0~3.0, w(CaO)<2.00, w(FeO)+ w(MnO)<1.0
Fused aluminum ash: w (Al) 10, w (Al2O3) 50 ~ 60, w (SiO2) 3.0 ~ 5.0, w (Na2O) 1.0 ~ 1.5w (MgO) 2.0 ~ 3.0, w (CaO) 1.5 ~ 3.0, w (FeO)+w(MnO)<1.0
The use of aluminum ash in addition to the recovery of metal aluminum, the other main use is the desulfurization of electric furnace smelting.
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