Enhancing the Technical Qualifications of Egyptian White Sand Using Acid Leaching; Response Surface Analysis and Optimization
International Journal of Mineral Processing and Extractive Metallurgy
Volume 1, Issue 4, September 2016, Pages: 33-40
Received: Aug. 24, 2016;
Accepted: Aug. 29, 2016;
Published: Sep. 26, 2016
Views 3719 Downloads 75
Mohamed Shaban, Nanophotonics and Applications Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
Mostafa Ragab AbuKhadra, Nanophotonics and Applications Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt;Geology Department, Faculty of Science, Beni-Suef University, Beni Suef City, Egypt
White silica sand samples were collected from Zafarana area along the Red sea coast, Egypt. The samples were mixed and quartered to obtain representative sample for characterization. The silica content in the sample is 99.441% and the iron content is 0.112%. Such geochemical qualifications don't match the technical specification of ceramic, optics, silicon metals and solar cells. RSM in conjunction with CCRD was used to study the removal of iron from silica sand using oxalic acid in terms of three operating parameters (Contact time, Acid concentration, Temperature). The model F values indicated the high significance of the design, also the good agreement between the Actual and the predicted results (R2 > 0.9) indicated suitability of second order quadratic polynomial model to represent the removal process. The best removal process (82%) was achieved at 8gm per ton oxalic acid concentration, 95°C temperature and 120 min leaching time. The final product exhibit high silica content (99.683% SiO2) and lower iron content of (0.017%) which match the requirements of ceramic, silicon carbide, silicon metal and the production of silicon for solar cells.
Mostafa Ragab AbuKhadra,
Enhancing the Technical Qualifications of Egyptian White Sand Using Acid Leaching; Response Surface Analysis and Optimization, International Journal of Mineral Processing and Extractive Metallurgy.
Vol. 1, No. 4,
2016, pp. 33-40.
S. S. Ibrahiem, M. G. Shahien, A. Q. Selim, M. R. AbuKhadra, A. M. Zayed,” Marwit Rod El Leqah Quartz Deposits As A Strategic Source of High Purity Quartz ˵, Journal of Geoscience and Environment Protection, vol. 3, pp. 41-47, 2015.
P. Moore,” High purity quartz,” Industrial Minerals, Vol. 8, pp. 54–57, 2005.
R. Haus,” High demands on high purity-processing of high purity quartz and diatomite,” Industrial Minerals, pp. 62–67, 2005.
E. Dal-Martello, S. Bernardis, R. B. Larsen, G. Di-Tranell, M.. Sabatino, L. Arnberg,” Electrical fragmentation as a novel route for the refinement of quartz raw materials for trace mineral impurities,” Powder technology, vol. 224, pp. 209-216, 2012.
M. R. Abukhadra,” Study on qualifications of some Egyptian Quartz deposits for high technology applications,” Master thesis, Geology Department, Faculty of Science, Beni Suef University, Beni Suef city, Egypt, 2015.
H. Huang, J. Li, X. Li, Z. Zhang,” Iron removal from extremely fine quartz and its kinetics,” Separation and Purification Technology, vol. 108, pp. 45–50, 2013.
F. Du, J. S. Li, X. X. Li, Z. Z. Zhang,” Improvement of iron removal from silica sand using ultra-assisted oxalic acid,” Ultrason. Sonochem, vol. 18, pp. 389–393, 2011.
S. N. Groudev, F. N. Genchev, S. S. Gaidarjiev,” Method of Biocatalytic removal of iron from mineral raw materials,” Bulgarian pat, 29063, 1978.
D. M. Di-Toro, J. D. Mahony, D. J. Hansen, K. J. Scott, M. B. Hicks, S. M. Mays and M. S. Redmond,” Toxicity of cadmium in sediments: the role of acid volatile sulfides,” Environmental Toxicology and Chemistry, vol. 9, pp. 1487-1502, 1990.
J. Lange,” Rohstoffe der Glasindustrie,” Deutsche Verlag fur Grundstoffindustrie, Leipzig, 1993.
S. Baoqi, C. H. Zhengbing,” Chemical purification of industrial minerals,” Proceedings of the XIX International Mineral Processing Congress, vol. 2, pp. 207–211, 1995.
M. Taxiarchour, D. Panias, I. Doumi, I. Paspaliaris, A. Kontopoulos,” Removal of iron from silica sand by leaching with oxalic acid,” Hydrometallurgy, vol. 46, pp. 215-227, 1997.
F. Veglio, B. Passariello, M. Barbaro, P. Plescia, A. M. Marabini,” Drum leaching tests in iron removal from quartz using oxalic and sulphuric acids,” International Journal of Mineral Processing, vol. 54, pp. 183–186, 1998.
L. G. Liu, H. M. Gao. L. Y. Zhang,” Techniqual study on highly pure quartz sand,” Nonmet. Ores, vol. 4, pp. 39-41, 1996.
Z. Zhang, J. Li, X. Li, H. Huang, L. Zhou, T. Xiong,” High effi ciency iron removal from quartz sand using phosphoric acid,” International Journal of Mineral Processing, vol. 114, pp. 30-34, 2012.
A. N. Banza, J. Quindt, E. Gock,” Improvement of the quartz sand processing at Hohenbocka,” International Journal of Mineral Processing, vol. 79 (1), pp. 76–82, 2006.
F. Veglio, B. Passariello, C. Abbruzzese,” Iron removal process for high-purity silica sands production by oxalic acid leaching,” Ind. Eng. Chem. Res, vol. 38, pp. 4443-4448, 1999.
M. AbuKhadra, A. Selim, M. Shahien, S. Ibrahim,” Egyptian Quartz Deposits as Strategic Source of High Purity Silica,” Lambert Academic Publishing, Saarbrucken, Saarland, Germany, 2015.
M. R. Abukhadra, M. K. Seliem, E. A. Mohameda, A. Q. Selim, H. M. Mahmoud,” Application of Quadratic Polynomial Model for the Uptake of Iron from Aqueous Solutions by Natural and Modified Egyptian Bentonite ˵, American Journal of Applied Chemistry, Vol. 3, pp. 179-183, 2015.
E. A. Mohameda, A. Q. Selim, M. K. Selim, M. R. Abukhadra,” Modeling and Optimizations of Phosphate Removal from Aqueous Solutions using Synthetic Zeolite Na-A ˵, Journal of Materials Science and Chemical Engineering, vol. 3, pp. 15-29, 2015.