| 摘要 |
PURPOSE: Provided is a preparation method of vanadium pentoxide(V2O5) briquette used as an additive to increase recovering rate of vanadium(V) contained in steel in steelmaking process like conventional ferro vanadium(Fe-V). CONSTITUTION: The preparation method comprises the steps of: mixing V2O5 power(>=200mesh) with slag A or slag B powder(>=200mesh) in a weight ratio of 0.15-0.6, wherein the slag A comprises 35-60wt.% of CaO, 30-50wt.% of SiO2 and less than 8wt.% of Al2O3, and the slag B comprises 35-60wt.% of CaO, 30-50wt.% of Al2O3 and less than 8wt.% of SiO2; adding 8wt.%(based on V2O5) of diluted polyvinyl alcohol(H2O: PVA=1:1) as a binder, and mixing; pressing with a cylindrical mold; and drying. |
