This study investigates the potential to recover iron and chromium from a chromium-bearing carbon steel Electric Arc Furnace (EAF) slag. slag contains indeed about 30 wt.% Fe 2.5 Cr. However, minerals are intergrown at small scale (<100 µm) mostly contained in spinel phases which makes separation challenging. Several methods including Mössbauer spectroscopy, X-ray Diffraction, Scanning Elect...

EPA has completed a substantial study to re-evaluate use of the presence of slag wool fibers as a potential marker for World Trade Center (WTC)-derived dust contamination. Slag wool is an insulating material (made from blast furnace slag) that was used in the construction of the WTC. Large quantities of slag wool were released into lower Manhattan by the collapse of the WTC. Samples of dust col...

This study presents the result of using melting to recover both industrial sludge slag (the main constituent of which is calcium fluoride) and water works sludge slag as fine aggregate in cement. The main characteristics of both slag and cement mortars were measured to evaluate the feasibility of using slag as aggregate. In this study, the slag replacement ratios were 0, 10, 20, 30, 40, and 50%...

for beneficiation of converter slag, the role of surface phenomena on slag composition was studied. this work includes some experimental data, which were measured for basic oxygen steel (bos) slag in isfahan steel plant. all data were collected on site in the plant. the results support the idea that surface activity plays a major role in converter slag formation. it was also a new finding that ...

The dephosphorization slag has a great potential as the secondary resources of manganese and phosphorus, while quite a large amount of slag is landfilled and simply reused such as cement. The objective of this study is to investigate the recovery of manganese and phosphorus by wet magnetic separation technique. The hot metal pretreatment slag (dephosphorization slag) generally contains a Ca3P2O...

Some variables that influence the slag splashing phenomenon in an oxygen steelmaking converter are numerically analyzed in this work. The effect of lance height, jet velocity, jet exit angle and slag viscosity on the washing and ejection mechanisms of slag splashing is studied in this work employing twodimensional transient computational fluid dynamics simulations. A parameter here called avera...

In order to reduce energy consumption in the blast furnace ironmaking process, it is important promote not only rapid reduction of ore but also carburization and melting metallic iron. this study, use carbon-iron composite which an agglomerate fine iron carbonaceous material was focused on, effects type slag content on were examined.

On the one hand, copper slag is nowadays a waste in pyrometallurgy despite significant quantities of iron (>40 wt. %) and (1 to 2 %). other solar energy, when properly concentrated, offers great potential high-temperature processes. Therefore, concentrated power (CSP) could be used treatment transform fayalite into magnetite sulfides oxides nodules. This objective this paper. The results sho...

Nowadays, magnesia carbon refractories are very important for the iron and steel industries. It is due to their unique properties, such as low wet ability with melt iron and steel. Therefore, it is important to extend the life of the refractory. In this research, the effect of calcined alumina and nano carbon on mechanical strength and corrosion resistance against slag in magnesia carbon refrac...