跳至主要内容

Characterization and Beneficiation of Anka Chromite Ore Using Magnetic Separation Process

Read  full  paper  at:
http://www.scirp.org/journal/PaperInformation.aspx?PaperID=20504#.VNHeSyzQrzE

ABSTRACT
Chromium is largely used as alloying elements in steels for production of stainless steels. It is added in form of ferro-chromium, which is presently imported from Russia and Germany to meet the need of Nigerian Steel Industry. Chromite ore (FeOCr2O3) is the most important mineral occurrence of chromium, and some deposits are reported in Anka Local Government Area of Zamfara State. This work involves the analysis of collected ore samples from Anka in Zamfara State. The samples assaying 36.84% of Cr2O3 was subjected to beneficiation process in order to enrich the ore, in terms of the Cr2O3, using magnetic separation. The results obtained after the analysis of the beneficiated ore using wet chemical analysis and Atomic Absorption Spectrometer shows that Cr2O3 content increased to 48% with a maximum Cr:Fe ratio of 6.2:1. The content of Cr2O3 is high enough and can be used for ferro-chromium alloy production.
 
Cite this paper
O. Abubakre, R. Muriana and P. Nwokike, "Characterization and Beneficiation of Anka Chromite Ore Using Magnetic Separation Process," Journal of Minerals and Materials Characterization and Engineering, Vol. 6 No. 2, 2007, pp. 143-150.
 
References
[1]Kudrin V.A. (1988) “Steel Making” Mir Publisher. Moscow. P.358
 
[2]Ubokwe and Khan (1996) Processing and Beneficiation of Quarzite, Manganese and Chromite Ores for ferro-alloy production in Nigeria. Nat. Engg. Conf. Bauchi, April, 1996.”
 
[3]Siyan Malomo (2003) “Materials for the Mineral Industry and the Challenges of Processing” Annual Conference of Nigerian Materials Society (MRS), Akure.
 
[4]Yaro S.A (2004) “Upgrading of Muro-Toto iron ore gravity pre-concentrate by Reverse Froth Floatation Method” Journal of Raw Materials Research, Vol 1 No 1, 2004 pp 54-59.
 
[5]Wills B.A. (1989), Mineral Processing Technology 3rd Edition Pergamon. New York.
 
[6]Gasik M.I., Likichev N.P. and Emlin B.I. (1988) “Theory and Technology of Ferroalloy Production” Metallurgy Publisher, Moscow p. 784.
 
[7]“Chromium and Chromium Alloys” in Kirk-Othmer Encyclopaedia of Chemical Technology, 4th Edition, Vol VI, 1993 p. 230.
 
[8]John Papp (1994) “Chromite” in Industrial Minerals and Rocks. 6th Edition Society for Mining, Metallurgy and Exploration. P. 210
 
[9]Robinson M, Wilson H.B., Crosby A.D, Talati K (1981)”Beneficiation of Chromite Ore and other ores by Selective Chlorination” Journal of Extraction Metallurgy, London Sept, 1981, pp 393 – 403.
 
[10]Petruck, W. (1976) “The Application of Quantitative Mineralogical Analysis of Ores to predict the optimum Grind” Canadian Mineral Processors, Ottawa.                                                                              eww150204lx
 
[11]Nwokike P.N. (2003) “Characterization And Beneficiation Of Anka Chromite Ore” Draft M.Eng Thesis, FUT, Minna.
标签：

评论

发表评论

此博客中的热门博文

Does Immigration Promote the Investment of the Monopolistic Firm?

In the present paper, we examine the effect of increasing uncertainty of immigrants’ growth on the optimal timing of investment of a firm that has a monopolistic power over the labor market. It is revealed that when the uncertainty of immigrants’ growth is more than a threshold level, increasing uncertainty of immigrants’ growth accelerates the optimal timing of firms’ investment and enhances the economic growth, even if the uncertainty of immigrants’ growth is formulated by the geometric Brownian motion, which is in sharp contrast to the standard result that an increase in the uncertainty postpones the optimal timing. With an increase in the immigrants over the past ten years, workforces in the host countries have been growing significantly to the extent that the immigrants represent 70% of the increase in the workforce in Europe, and 47% in the United States as OECD indicates. In the present paper, we attempted to investigate the effect of increased uncertainty caused by the growi...
发表评论
阅读全文

Education Policy Implementation: A Mechanism for Enhancing Primary Education Development in Zanzibar

Education is one of the fundamental rights of individuals; therefore, the government of a country needs to develop and strengthen educational policy and quality as well as to ensure that everyone has equal access to basic education. The improvement of access and quality of education in the world is becoming as an essential factor in development, whereas the basic education (primary school), is acknowledged as a foundation of the higher educational development for every country. To fulfill this goal, governments introduce several policies and procedures; however, it requires some reforms and participation from the politician, policymakers, and other stakeholders to re-examine educational policy so that it can lead to multiplication and betterment of the reforms. Educational reforms actually focus on accountability. A positive educational development and reform is very challenging and needs more effort and strategy on how to use and utilize the resources effectively as such it can achie...
发表评论
阅读全文