re, coKe, IImestone矿,焦碳,石灰石 Blast furnace 200°C (鼓风炉) 3Fe2O2+CO→ 2Fe.0,+CO CaCO3→CaO+CO2 Fe2OA+CO→ 3Fe0+CO 700°C Cao(s)+Sio2(s) CasiO Feo+CO-Fe+ CO 1000°c Cao(s)+Al,O3(s) 1200°C →→Ca(AO2)2() Cao+SiOn-CaSio 学电國 Iron melts 6Cao(s)+PoLo(s) Slag forms 2000°C P(V),S(VI)reduced →2Ca3(PO42() 2C+02→2CO Slag(炉渣) 炉渣Blast furnace (鼓风炉) CaO(s)+SiO2(s) →CaSiO3(l) CaO(s)+Al2O3(s) →Ca(AlO2)2(l) 6CaO(s)+P4O10(s) →2Ca3(PO4)2(l) Slag(炉渣) 矿，焦碳，石灰石 炉渣