Abstrakt

Phase Changes during Microwave Sintering of Vanadium Containing Slag

H.N.Dash, D.Rout and B.B. Kar

Vanadium containing slag sample is subjected to roasting both by conventional process as well as microwave technique. The phase change during roasting with microwave heating has been investigated by XRD method. The chemical composition has been monitored continually by quantitative as well as AAS. The results show that the vanadium oxide samples couple well with microwave and the temperature can reach approximately 8000 C in 7 minutes. The phase change in V2O5 has been observed along with SiO2 and Al2O3,present as residual masses. By proper control of the roasting temperature, vanadium oxide can be sintered into a reasonably strong and relatively porous glassy refractory material within a short period of time using microwave technique.