International Journal of Technology Enhancements and Emerging Engineering Research (ISSN 2347-4289)

IJTEEE >> Volume 2 - Issue 5, May 2014 Edition

International Journal of Technology Enhancements and Emerging Engineering Research  
International Journal of Technology Enhancements and Emerging Engineering Research

Website: http://www.ijteee.org

ISSN 2347-4289

Central Composite Design In Optimization Of The Factors Of Dephosphorization Of Agbaja Iron Ore

[Full Text]



Obiorah, S.M.O., Nnuka, E.E., Odo, J.U.and Nwakpa, S. O.



Keywords: Central Composite Design, Response Surface Methodology, Dephosphorization, Iron Ore, Concentration And Particle Size.



ABSTRACT: The purpose of this research effort is to determine the optimal factors for dephosphorization of a Nigerian Agbaja iron ore. The process parameters used in the study of optimization of dephosphorization includes pH, particle size, dwell time. Response Surface Methodology was used in fitting response surface of a second order regression equation Y=0+1A+2B+3C+12AB+13AC +23BC+11A2+22B2+33C2+e. The result indicated that optimum conditions occurred at: pH 1.5, particle size 0.3mm and dwell time 60 minutes.



[1]. Alafara, A. B; Adekola, F.A.O.[2005] Bioline. Journal of Applied Sciences and Environmental Management,vol 9(3),15-20

[2]. Amadi N.J Odunaike, AA and Marthur, G.P (1982) Preliminary Bench Scale Beneficiation stududies with three lumps of iron ore sample from Agbaja. Central Metallurgical Reseach and Development institute Jos, Nigeria.

[3]. AnyakwoC.N, and Obot O.W (2010) Phosphorus Removal Capability of aspergillusTerreus and Bacillus Subtilis from Nigeria’s Agbaja iron Ore.US Journal of Minerals and Materials Characterization and Engineering Vol 9 No 12 P1131-1138.

[4]. Dukino,R.D,England, B.M,Kneshaw,M[2000] Phosphorus Distribution in BIF~ derived iron ores of Hamersley Province,WesternAustralia.TransInstn Mineral Metal[sect B,EarthSci]109,B168-B176.

[5]. Fonesca D., Souza C. and Arajuo A.[1994] Hydrometallurgical routes for the reduction of phosphorous in iron ores. In Wilkomirsky I. Sanchez M., Hecker, C. and Sutulov A. Eds. Chemical metallurgical, IV meeting of the Hemisphere on mineral Technology. Universidad de concepcion. Conception-Chile, Vol.III.:83-92.

[6]. Forsberg R. and Asolfesson G.[1981] Dephosphoration of high-phosphorous iron resources by means of acid bleaching, Erzm et al , 34:316-322.

[7]. Hang J., Yang V. and Xie H. A study on the dephosphoration of iron ore by phosphorus dissolving agent accompanied with thiobacillus. Journal of Nanjing Forestry University, 1994: 18(2):25-29.

[8]. He L. and Zhou J. Characteristics of Meishan iron ore with high phosphorous-bearing and feasibility of biodephosphorization. Gold Journal, 2000: 2(1):26-29.

[9]. Kokal H.R. The origin of phosphorous in iron making raw materials and methods of removal. AIME Proceeding, 51st Annual Mining symposium Duluth-Minnesota, January 17-18, 1990:225-258.

[10]. Kokal R., Singh M.T. and Naygyonov V.A. Removal of phosphorous from Lisakogsky Iron Ore by roast-leach process. In Young C.A. et al., Hydrometurlogy, Proceedings of fifth international symposium, 2003.

[11]. Li X. and Wen S. an overview of the present statues of dephosphorization of iron. Metallic ore dressing abroad, 2004:41:4-7.

[12]. Whiteley J. H. The Dephosphorization of iron in the basic furnace.Proc.CleavelandInstn. Engr., 1923:59: 36-55.

[13]. Uwadiale, G.G.O.O Bennficiation Studies of Agbaja Iron Ore, Ph. D thesis University of Strathclyde, June 1984, 341 PP.

[14]. Uwadiale, G.G.O.O and Nwoke, M.A.U, beneficiation of Agbaja Iron Ore by Reduction Rostiny- Magnetic Setaration Semi Pilot plant Scale-up and Establisment of Residence Point of Phosphorus national Steel Council, MetLLURGICAL Research and Tests Division, Jos, Nigeria,June 1983.

[15]. Montgomery, Douglas C. (2005). Design and Analysis of Experiments Response surface method and designs. New Jersey, John Wiley and Sons, Inc.

[16]. Oehlert, Gary W. 2000. Design and analysis of experiments, Reponse surface design. New York, W.H. Freeman and Company.

[17]. Obiorah, S. M. O., Menkiti, M.C. and Nnuka, E.E (2011) Benefication Processing of Agbaja Iron Ore by Chemical Leaching Technique New York Science Journal Vol4 (5) P22-27.