Characterization and Dissolution Application of Local Clay
Keywords:
Alumina Extraction, Calcination, Inorganic Acid Leaching, X-ray Diffraction (XRD)Abstract
This research was carried out to characterize and investigate the use of local clay found in Delta state for the extraction of pure alumina by the use of HCl and H2SO4 acids. In order to ascertain the most suitable conditions, leaching experiments were conducted under several process variables such as varying; clay to acid ratio (5:100 and 10:100), particle size (600?m and 850?m), dissolution temperature (50˚C, 100˚C and 150˚C), calcination temperature (600˚C and 700˚C) and acid concentrations (0.5M, 1M and 2M). Alumina content was determined using FS 240 Varian Atomic Absorption Spectrophotometer (AAS). Minerals contained in the clay were sorted out by using 1.54056-CuKα1 for 2ϴ arranged by X-Ray power Diffraction (XRD) obtained from International Centre for Diffraction Data
References
I.H. Milne, C.M. Warshaw, ?Methods of Preparation and Control of Clay Mineral Specimens in X-ray Diffraction Analysis,? Gulf Research and Development Company, Pittsburgh, Pennsylvania, Vol. 4, pp. 22 - 30, 1955.
P. Komadel, J. Madejova, ?Acid Activation of Clay Minerals,? Handbook of Clay Science, Vol. 1, pp. 263 - 287, 2006.
P.K. Igbokwe, F.L. Olebunne, M.S. Nwakaudu, ?Effect of Activation Parameters on Conversion in Clay ? Catalysed Esterification of Acetic Acid,? International Journal of Basic & Applied Sciences, Vol. 11, No. 05, 2011.
Preeti Sagar Nayak, B.K. Singh, ?Instrumental Characterization of Clay by XRF, XRD and FTIR,? Indian Academy of Sciences, Vol. 30, No. 3, pp. 235 - 238, 2007.
G.W. Brindley, ?Identification of Clay Minerals by X-Ray Diffraction Analysis,? Clays and Clay Minerals, Vol. 1, pp.119-129, 1952. doi:10.1346/CCMN.1952.0010116.
A.A. Al-Zahrani, M.H. Abdul-Majid, ?Extraction of Alumina from Local Clays by Hydrochloric Acid Process,? Engineering Science Journal of King Abdulaziz Uni, Saudi Arabia, Vol. 20, No. 2, pp. 29-41, 2009.
S. Ziegenbalg, G. Discher, ?Extraction of Alumina from Clay by Hydrochloric Acid Process,? Freiberger Forschungshefte (Reihe) A: pp. 7-25, 1983.
Ibid, ?Investigations into the Alumina Extraction from Clay by Hydrochloric Acid and Sulfuric Acid Leaching,? Light Metals: Proceedings of Sessions, AIME Annual Meeting (Warrendale, Pennsylvania), 1119-1143, 1983.
J.A. Eisele, ?Producing Alumina from Clay by the Hydrochloric Acid Process, A Bench-Scale Study,? U.S Bureau of Mines R.I, No 8476, 1980.
B.D. Cullity, ?Elements of X-Ray Diffraction,? Addison-Wesley Publishing Company, Philippines, pp. 161-187, 1978.
Katherine Ozalas, Benjamin F. Hajek, ?X-Ray Diffraction Analysis of Thin Clay Films from Dilute Suspensions using Glancing Incidence Diffraction,? Clays and Clay Minerals, Vol. 44, No. 6, pp.811-817,1996.
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