Basic Oxygen Furnace slag contains heavy metals, including vanadium, chromium and molybdenum. The leachability of these elements determines the industrial applicability slag-based building products. This study investigates post‑carbonation leaching metals from activated BOF pastes with focus on activator dosage type (sodium potassium citrate). Results reveal that high degree brownmillerite hydr...

Abstract The primary process in an electrical arc furnace (EAF) during industrial steelmaking results tons of black slags which cause pollution to the environment. In this work, iron oxides generated EAF from SIDERPERU plant, Peru was reduced via carbothermal reaction. reduction slag α-Fe is demonstrated by X-ray diffraction, Mӧssbauer spectroscopy and magnetometry. However, phases with calcium...

Abstract The ejection of metal droplets into slag due to top-blowing is characteristic the BOF process. residence time in plays a significant role kinetics metal–slag reactions. In this study, ejected during steelmaking investigated and various approaches, based on blowing number theory mass balances are compared. Previously published theories evaluated comparison with physically upper lower bo...

Recycling is extremely important for steelmaking. In developed countries, about 60% of steel is manufactured from scrap. The scrap contains 0.5% of zinc in average, and this percentage steadily increases. During the steelmaking process both in basic oxygen furnaces (BOF) and in electric arc furnaces (EAF), all volatile zinc is released and forms airborne particles of dust. About 20 kg of dust i...

In the present study, viscosity of CaO–SiO2–FeO–Al2O3–MgO slag system was measured for recovery FeO in electric arc furnace (EAF) process using Al dross. Considering MgO-saturated operational condition EAF, composition at 1823 K with varying and Al2O3 concentrations. An increase decreasing temperature observed. The activation energy evaluated, change thermodynamically equilibrated phase conside...

The steelmaking processes are considered extremely energy-intensive and carbon-dependent processes. In 2018, it was estimated that the emissions from global steel production represented 7–9% of direct generated by fossil fuels. It a specific value 1.8 tCO2 per ton produced due to nature traditional blast furnace basic oxygen (BF-BOF) route. Therefore, is necessary find an alternative solution B...