Browsing by Author "S. O. Abdulraman"

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    Characterization of a Feldspar Mineral from Adogo, Ajaokuta Deposit
    (2022) Y. L. Shuaib-Babata; S. O. Abdulraman; Y. O. Busari; I. O. Ambali; K. S. Ajao; O. M. Yusuf
    This study considered the suitability of Adogo feldspar deposit in Kogi State, Nigeria for glass and ceramic production. The feldspar's sample was characterised through analysis of its physical, chemical and mineralogical properties. The results of the physical analysis showed that the mineral has a bulk density of 1.3551 g/cm3 and tapped density of 1.5209 g/cm3, which was used to determine the compressibility index and Hausner ratio. The index shows that the powdered mineral has a good flow character. The result also revealed that the mineral has a very low percentage of moisture content (1.75%) and clay content of 2.9%. Meanwhile, the chemical analysis showed that the feldspar mineral has dominant elements of Silicon (70%) and Aluminium (20%), with 73% and 23% oxides of silicon and aluminium respectively, negligible values of other elements and oxides in the feldspar. The mineralogical analysis revealed that the feldspar deposit was of low-grade soda feldspar, while the phases present showed that the mineral was a low-grade feldspar Albite Feldspar. Though, the physical and chemical properties of the feldspar revealed the potential of the feldspar as a suitable raw material in ceramics and glass industry but further beneficiation was needed to meet suitability for the production of ceramic and glass.
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    Important Technical Considerations in the Development of Bankable Documents for Quarry Operations
    (2017) S. O. Abdulraman
    Today's quarry operations are characterised by high capital expenditure, low product priceand high operating costs including energy costs (diesel cost). Consequently, when deciding on quarry investment, there is little room for inefficiency in quarry design and production scheduling and consequently, in the estimates of the quarry project's value. A doubtful and badly implemented quarry evaluation process could wrongly classify a non-profitable venture as being profitable with appreciable probability, and vice versa. And the consequence of a badly implemented quarry investment evaluation process has economic implications to both the promoters and stake holders of the project with financial institution (BOI') inclusive. Many quarries financed by Nigerian banks record poor performances due to the technical flaws inherent in the So-called Bankable Feasibility study reports submitted during the loan Application process. This paper suggests the need to engage competent hands (Mining Engineers /Mining Consultants) to carry out technical due diligence on every mining project funding or loan applications to guarantee effective and efficient funding of mining projects and justify BOl’s contribution to nation's minerals industry. Also, engage team of engineers to monitor the performance of the quarry throughout the loan period. So as to ensure that the quarry run optimally to guarantee quick pay back and return on investment.
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    The Suitability of Using Environmental Waste (Polystyrene Foam, Sawdust and Eggshells) for Developing a Hybrid Composite for Ceiling Boards.
    (2022) Y. L. Shuaib-Babata; Y. O. Busari; S. O. Abdulraman; L. B. Abdulqadir; I. O. Ambali; K. S. Ajao; N. I. Aremu; I. O. Arowolo
    This study considers the suitability of using environmental wastes (polystyrene foam, sawdust and eggshell) for the development of composite materials for ceiling boards. The materials were collected from dumping sites and processed accordingly. The elemental compositions of the processed sawdust and eggshell were examined using Atomic Absorption Spectrometer (ASS) and plasma-optical emission spectrometer (Optimal 3100XL Perkin Elmer) respectively. Properties of the composite samples were determined using appropriate ASTM standards (ASTM D570, C109-95, D3479, E1530 and D7336/D7336M). The results show that the composite with a mix ratio of 5% Polystyrene, 10% sawdust and 40% eggshell exhibited the most suitable properties for ceiling board production or indoor uses in building: water absorption (0.52 and 6.17% for 2 and 24hours respectively), tensile strength (2.362 N/mm2), elongation at break (0.677 mm), compressive strength (0.1575 N/mm2), energy to break (0.016 N.m) and thermal conductivity of 0.0221 W/M.K. Thus, the production of suitable ceiling board using some bio-wastes can be domesticated in Nigeria.