Department of Metallurgical and Materials Engineering;
Nnamdi Azikiwe University;
Awka;
Nigeria;
Materials Science and Engineering;
Michigan Technological University;
1400 Townsend Dr.;
Houghton;
Michigan;
U.S.A.;
Mineral Processing Unit;
Department of Chemistry;
Federal University of Technology;
P.M.B. 1526;
Owerri;
Nigeria;