Adaptable Technologies for Life – Cycle Processing of Tantalum Bearing Minerals
- 1 Department of Metallurgical and Materials Engineering University of Lagos, Lagos, Nigeria.
- 2 Department of Metallurgical and Materials Engineering University of Lagos, Lagos, Nigeria.
- 3 Department of Metallurgical and Materials Engineering University of Lagos, Lagos, Nigeria.
Abstract
Nigeria is richly endowed in convertible natural resources of which solid minerals are a member of the endowments. However, the country is basically a mono-product economy based on its vast oil deposit accounting for over 84% of foreign earnings and 25% of GDP. The triple challenges of the volatile nature of global oil politics, achieving the objectives of the millennium development goals and the national economy empowerment and development strategies calls for diversification into hitherto neglected solid mineral deposits to open a window of opportunities. One of the widely reported mineral deposits in the country with strong international influence is tantalum-bearing mineral. The mineral had in the past few decades experienced a strong growth in demand averaging 10% per annum since 1992 with total world consumption estimated at over 38 thousand tonne in 2005. The total annual supply of the ore concentrate in 2001 was 720 tonnes when demand was 26 thousand tonnes. Thus, pushing the price of the concentrate to an all time high of $165 / kg in 2001. This paper outlines the characteristics of the Nigerian tantalum reserves. It also presents the evaluation of the competing technologies for complete cycle processing of tantalum bearing minerals for adoption in the Nigeria solid mineral industry.
- Aliyu, A. (1996): Potentials of the Solid Minerals Industry in Nigeria;RMRDC, Abuja.
- www.cia.gov/cia/publications/factbook/geos/ni.html.
- Obasanjo, O. O. (2006): 2007 Federal Government Project Proposal Presented to the National Assembly.
- Gana, Z. J. (2004): “Nigeria’s Economic & Trade Priorities” paper presented at the round table on Nigeria in Ottawa. Canada pp. 1 – 7.
- www.mii.org/minerals/phototant.html.
- www.researchandmarkets.com/reports/C 19268
- www.greenbushesinc.asn.au/mine/geology & mining.htm.
- www.mindat.org/min-3882.html.
- Cunningham, L. D. (2005): “Tantalum”, USGS Mineral Commodity summaries. Pp. 166 - 167.
- www.globalexport.usaexportimport.com/industries/minerals.
- www.tradekey.com/kb-tantalite-ore/.
- Bala, J. J. (2003): “The Challenges and Opportunities of the Investment Environment in Nigeria”, Paper Presented at the International Meeting for the Promotion of Investment in Africa, Mita – Tokyo.
- National Geosciences Data Base of Iran (2005): Investigating the Status of Tantalum in the World: www.ngdir.lr.
- Funtua, I. I. (1999a): “Analysis of Nb-Ta ores by Energy Dispersive X-ray Flourescence Spectroscopy”. Journal of Trace Microprobe Techniques, 17, 2 pp. 89-95.
- Obianjunwa (2001): “Analysis of some Nigerian Solid Mineral ores by Energy Dispersive X-ray Fluorescence Spectroscopy”. Nuclear Instruments and Methods in Physics Research B, 184, pp. 430-437.
- Adetunji, A. R.; Sinyanbola, W. O.; Funtua, I. I.; Olusunle, S. O. O.; Afonja, A. A. and Adewoye, O. O. (2005): “Assessment of Beneficiation Routes of Tantalite Ores from Key Locations in Nigeria”. JMMC&E Vol. 4, No. 2, pp. 67-73.
- Burt, R. (1996): “Beneficiation of Tantalum Ore – How it is Achieved and Could it be Better?” Proceedings of 125 th TMS Annual Meeting and Exhibition, Anaheim, CA 17-22.
- Wills, B. A. (1992): “Mineral Processing Technology”, 5th Ed. Pergamon Press.
- Burt, R. O. (1984): “Gravity Concentration Technology”, Elsevier Science BV, Amsterdam.