|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||7th International Symposium on High Temperature Metallurgical Processing
||KK-3: Effect of CaO/SiO2 and P2O5 on the Viscosity of FeO-SiO2-V2O3-CaO-P2O5 Slags
||Zhen Zhang, Bing Xie, Pan Gu, Jiang Diao, Hongyi Li
|On-Site Speaker (Planned)
Viscosities of FeO-SiO2-V2O3-CaO-P2O5 slags have been measured at the temperature range of 1673 K to 1773 K (1400℃ to 1500℃). This investigated system represents the major components of basic vanadium slag that is an important intermediate product of a novel vanadium extracting process, in which removal of phosphorus and extraction of vanadium can be achieved from the vanadium-containing hot metal simultaneously. It was found that higher CaO/SiO2 ratio resulted in lower viscosity in the composition range of interest. Also, the viscosities increase with the increasing P2O5 concentration. The varying viscosities can be attributed to the modification in complexity and polymerization of the silicate network. The variation of apparent activation energies are in tune with the viscosity measurements. The results of this work revealed the effects of CaO/SiO2 and P2O5 on the viscous properties of FeO-SiO2-V2O3-CaO-P2O5 slags and therefore provide the theoretical foundation for the control of the coupling de-P and V-extraction process.
||Planned: A print-only volume