UPGRADING OF WASAGU (KEBBI STATE) MANGANESE ORE TO METALLURGICAL GRADE CONCENTRATE
UPGRADING OF WASAGU (KEBBI STATE) MANGANESE ORE TO METALLURGICAL GRADE CONCENTRATE
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Date
2013-04
Authors
BINTA, HASSAN.
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Abstract
In this work, the possibility of upgrading a locally available low grade Manganese Ore was
attempted. The low grade ore deposit is located in Wasagu/Danko Local Government Area
of Kebbi State, North Western Nigeria. The work involved chemical and mineralogical
characterization of the ore and separation tests using gravity and magnetic Separation
Techniques, while the work index of the ore was determined using the Berry and Bruce
method. Results of chemical analysis using X-ray fluorescence spectrometer (XRF) revealed
that the manganese ore contains 38.67%Mn on the average. Mineralogical characteristics of
the ore determined using the X-ray diffraction (XRD) and Scanning Electron Microscope
(SEM) revealed that the ore is predominantly spessartite with quartz and hematite as minor
minerals while others are in trace amounts. Upgrading the ore using shaking table gave a
concentrate of 48.89%Mn, Spiral concentrator gave a concentrate of 49.34%Mn and the
Magnetic separation gave a concentrate of 52.63%Mn while their corresponding recoveries
are 97.60%, 99.10% and 77.78% respectively. The results obtained from these tests showed
that magnetic separation gave a better grade of the concentrate compared to the gravity
concentration techniques. The grade of 52.63%Mn obtained using magnetic separation
method compared favorably with 52.5%Mn required for production of ferromanganese.
Description
A THESIS SUBMITTED TO THE SCHOOL OF
POST-GRADUATE STUDIES, AHMADU BELLO
UNIVERSITY ZARIA.
IN PARTIAL FULFILMENT OF THE REQUIREMENTS
FOR THE AWARD OFA MASTER DEGREE OF
SCIENCE IN METALLURGICAL AND MATERIALS
ENGINEERING.
DEPARTMENT OF METALLURGICAL AND MATERIALS
ENGINEERING
FACULTY OF ENGINEERING
AHMADU BELLO UNIVERSITY ZARIA,
NIGERIA
APRIL, 2013.
Keywords
UPGRADING,, WASAGU,, (KEBBI STATE),, MANGANESE,, ORE,, METALLURGICAL,, GRADE,, CONCENTRATE,