Abstract:
Vanadium containing slagsample 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 and the chemical composition has been monitored continually by quantitative as well as AAS method. 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 Al2O3present as residual masses along with vanadium oxide. By proper control of the roasting temperature vanadium oxide can be sintered into a reasonably strong and relatively porous glassyrefractory material in a short period of time using microwave technique.

Keywords: Vanadium Oxide, microwave roasting, phase changes, porous material.