Authors : P.S.Deshpande, Shyam Dafare, C.B.Talwatkar, C.R.Hatwar & R.S.Bhavsar
Page Nos : 7-11
Description :
Red mud (RM) is a waste generated in Bayer’s process after extraction of
alumina from bauxite. In this work nanosized .-Fe2O3 has been extracted from it
by simple wet chemical method. Extracted iron oxide was investigated by XRD
technique. BET surface area and bulk density is found to be 199 m2g-1 & 3.0 g cm-3
respectively. Particle size was calculated using these values of BET surface area
and bulk density and same has been found to be 10 nm. Morphology of the
extracted iron oxide was tested using SEM studies. About 20% of the total iron
oxide present in the raw sample could be extracted in the form of nanosized .-
Fe2O3. The extracted iron oxide considered as a promising material with great
technological importance in the area of humidity sensor, catalyst, pigments, ferro
fluids, recording systems etc.
