International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 04 | Apr-2017
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e-ISSN: 2395 -0056 p-ISSN: 2395-0072
The Role of Interaction between Paenibacillus polymyxa Bacteria and Pyrolusite-Hematite System through Bioflotation Nagui A. Abdel-Khalek1, Khaled A. Selim1, Mohamed M.A. Hassan2, Moharram M.R.3 Saleh A. M.3, A. M. Ramadan3 1Central Metallurgical Research and Development Institute, (CMRDI), Helwan, Egypt and Petroleum Engineering Department, Faculty of Engineering, Al-Azhar University, Qena, Egypt 3Mining and Petroleum Department, Faculty of Engineering, Al-Azhar University, Cairo, Egypt
2Mining
-----------------------------------------------------------------------------------***--------------------------------------------------------------------------------furnace with parts entering the slag. This is why the reduction behavior of Mn in the blast furnace was studied strain as a surface modifier in flotation process and at the extensively before, trying to avoid the harmful effect of Mn optimum conditions, succeeded in the removal of 64.89 % of MnO2.Applying the same conditions for flotation of a natural in the ironmaking and steel industries [4, 5, 6]. At the iron ore yielded a concentrate containing 3.7% MnO 2, 0.5% same time, due to the similarity of their chemical and SiO2 and 71.30% Fe2O3 with a hematite recovery of 72.46% physical properties, Fe and Mn are always associated in from a feed containing 8.79% MnO2, 0.49% SiO2 and 67.90% the Fe and Mn deposits throughout the geological record of Fe2O3.These bio-flotation results indicated clearly that such different settings and origins [7, 8, 9]. Separation of MnO2, type of bacteria is selective for upgrading El Gedida iron from Egyptian iron ores by conventional methods of ores, Bahariya Oasis of high pyrolusite for utilization.In this beneficiation is difficult due to the extremely complex paper, the role of Paenibacillus polymyxa on the surface nature of these ores. For this reason, the use of these iron properties of the two single minerals has been studied ores is limited in Egyptian iron and steel industry. through zeta potential measurements as well as the Recently, the biological processes are becoming more adsorption experiments.Complete characterization of both attracting in mineral processing due to their lower single minerals and bacterial strain have been done using operating costs and their possible applications to treat XRD, XRF and FTIR. difficult to beneficiate low grade complex ores. Key Words:Adsorption, Egyptian iron ores,Paenibacillus Microorganisms play an important role in previous studies polymyxa, Bioflotation, FTIR to develop the bioleaching of manganese from its ores particularly low grade ores [10, 11, 12]. Paenibacillus polymyxa was utilized to separate silica from iron ore and 1.INTRODUCTION flocculate silica from some sulphide minerals [13]. The iron ore in Egypt present in different This paper aims to study the role of interaction between locations as in East Aswan, in the Eastern Desert, at isolated Paenibacillus polymyxaon and the surface Bahariya Oasis, in the Western Desert, and in several properties of hematite and pyrolusite single minerals localities of the Eastern Desert near the Red Sea coast. The through the zeta potential and adsorption experiments. iron ore deposits of these localities vary greatly in their Flotation behavior of the two oxides was studied in mineralogical and chemical composition as well as in the presence and absence of P. polymyxain. The separation of nature of their associated rocks, and also in the MnO2 from high manganese iron ores will lead to assemblage of trace elements [1, 2]. These ores suffer improvements in reduction of these ores and to from harmful elements as silica, Mn, Ba, carbonates or manganese recovery which required in its industry as chlorides. ferromanganese industry.
Abstract –Applying Paenibacillus polymyxa bacterial
Although manganese is added into steel for its deoxidizing and desulfurizing properties [3]. The occurrence of Mn in the iron ore raw materials causes harm to the reduction process of iron oxides in the blast furnace. Mn forms strong oxides, which are partially reduced in the blast
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