synthetic slag process decreases sulfur and phosphorus contents of steel, improves inclusion removal, protects steel from atmosphere and prevents temperature drop of the liquid steel in the ladle. in this study, the synthetic slags of ternary cao-al2o3-sio2,and quaternary cao-al2o3-sio2-na2o and cao-al2o3-sio2-sro systems were pre-melted and then were kept in contact with the liquid steel in a ...

Abstract The vaporization of vanadium pentoxide from CaO-SiO 2 -VO x ternary slags using different gas treatment regimens and parallel vacuum extirpation to treat V-bearing at 1873 K has been developed in the present study. novelty study is monitor effect alumina dissolution on phenomenon. Vanadium high vapor pressure temperatures over 1500 K. When slags, kept dense crucibles, are injected with...

The CaO-SiO2-MgO-Al2O3 slags with high alumina content are widely applied in various pyrometallurgical processes. However, for super-high-alumina slags, especially those of more than 25 wt%, there is a lack relevant studies about the properties slag. melting behavior, viscosity, structural property, and crystallization behavior high-alumina slag fixed MgO 11.13 wt% Al2O3 from 27.61 to 40 were i...

An archaeometallurgical characterization of two iron smelting tap slags recovered from the early medieval site Ponte di Val Gabbia I (Brescia, northern Italy) was performed. The main goal to infer working conditions ancient bloomery furnace in terms temperature and oxygen chemical potential. petrology both investigated by light optical microscopy scanning electron microscopy, while their compos...

Coals mined in some regions of the Transdanubian Middle Mountains in Hungary have elevated concentrations of Ra. The slags and ashes derived from these coals have been used as building material for schools and kindergartens. As the Ra reached up in these waste products of coal-firing systems, the gamma dose contribution in the buildings, which contained them, was calculated. In these places the...