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

Ledwaba Harry Moloto | Zendy; S. Manzini | Zendy; Ezekiel Dixon Dikio | Zendy

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

Author(s) -

Ledwaba Harry Moloto,

S. Manzini,

Ezekiel Dixon Dikio

Publication year - 2013

Publication title -

journal of chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.436

H-Index - 50

eISSN - 2090-9063

pISSN - 2090-9071

DOI - 10.1155/2013/837649

Subject(s) - magnetite , ball mill , chemistry , wüstite , graphite , transmission electron microscopy , mössbauer spectroscopy , scanning electron microscope , metallurgy , chemical engineering , carbon fibers , analytical chemistry (journal) , nuclear chemistry , crystallography , composite material , materials science , composite number , chromatography , organic chemistry , engineering

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

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