Reduction of Magnetite in the Presence of Activated Carbon Using Mechanical Alloying

الملخص EN

The reduction behaviour of magnetite using graphite under ball-milling conditions (using a planetary mono mill, Fritsch Pulverisette 6) has been investigated.

The reaction of magnetite and graphite at different milling conditions leads to the formation of Fe2+ and Fe3+ species, the former increasing at the expense of Fe3O4.

Fe3O4 completely disappeared after a ball to powder ratio of 50 : 1 and beyond.

The Fe2+ species were confirmed to be due to FeO using Mössbauer Spectroscopy and X-ray diffraction techniques.

Scanning electron microscopy and transmission electron microscopy analyses confirm the reduction of magnetite to wüstite.