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Biobeneficiation of bauxite using bacillus polymyxa calcium and iron

Apr 29, 2020

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    calcium and iron from bauxite. ... bauxite using Bacillus polymyxa: calcium and iron removal. ... R & D needs in mineral biobeneficiation. Hydrometallurgy 104: 465–470

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    A soil bacterium Paenibacillus polymyxa was recently shown to selectively remove calcium and iron impurities from low grade bauxite ( 50% Al), for

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Dec 31, 2021 Bacteria such as Bacillus polymyxa, Mycobacterium phlei, Acidithiobacillus ferrooxidans, Leptospirillum ferrooxidans, Paenibacillus polymyxa, and Bacillus subtilis are suitable for both bioflotation and bioflocculation. The use of EPS derived from these microorganisms has also been reported for biobeneficiation

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Biobeneficiation processes involving the separation of valuable minerals from ores and materials using conventional flotation and flocculation methods have been shown to be promising in recent years. There is an enormous potential to utilize microorganisms as flocculating agents, flotation collectors and/or depressants. The study involves Biobeneficiation of oxide minerals using

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    ANAND P., MODAK J. M. NATARAJAN K. A. Biobeneficiation of bauxite using Bacillus polymyxa: calcium and iron removal, International Journal of Mineral Processing. v

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Calcium removal from bauxite using Paenibacillus polymyxa. Mineral biotechnology. Microbial aspects of mineral beneficiation, metal extraction, and environmental control , Edited by: K. Kawatra S and K. A. Natarajan, 183--190, Society for

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Abstract: Reduction sintering - magnetic separation process was adopted to deal with high iron-bearing bauxite. The effects of calcium oxide on sintering and Al-Fe separation effect of sintering product were analyzed. Components and microstructure of the reduced sintering product added different dosage of calcium oxide were studied by X-ray diffraction and scanning electron

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Jan 02, 2012 With the depleting reserves of high-grade iron ore in the world, froth flotation has become increasingly important to process intermediate- and low-grade iron ore in an attempt to meet the rapidly growing demand on the international market. In over half a century’s practice in the iron ore industry, froth flotation has been established as an efficient method to remove

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Debasis Sarkar and Jayant M. Modak, Optimization of fed-batch bioreactors using genetic algorithms, Chemical Engineering Science, 58, 2283-2296, 2003. Listed as highly cited paper in 2003-06 period by Elsevier

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Biobeneficiation Of Bauxite Ore Using Bacillus Polymyxa: Surface Modification Of Quartz, Calcite And Magnetite Using Bacillus Polymyxa|Vijaya Banashettappa, Passion And Preferences: William Jennings Bryan And The 1896 Democratic Convention|Richard Franklin Bensel, Dancing With Bear: A Love Story|Marie

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Biogenesis thus plays a significant role in bauxite mineralization. Various types of bacteria and fungi, such as Bacillus polymyxa, Bacillus coagulans and Aspergillus niger, were found to be efficient in significant calcium solubilization and partial iron removal from bauxite ore. Probable mechanisms in the biobeneficiation process are analyzed

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Successful commercialization of bauxite biobeneficiation was proposed . Biological removal of calcium and iron from a low-grade bauxite ore was discussed with respect to Bacillus polymyxa. Growth conditions and probable mechanisms in the biological removal of calcium and iron from the bauxite ore were outlined by Anand et al. . From the

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Asian-Indians using principles of stereology on archived human midbrains, obtained from the Human ... Modak Jayant. M and Natarajan K.A.: Biobeneficiation of bauxite using Bacillus polymyxa: calcium and iron removal. 1996. Int. J. Miner. Process. 48, 51-60. Impact factor: 2.48; 2. Natarajan K. A., Modak. J.M and Anand Phalguni: Some

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Biobeneficiation of Iron Ores Jan 02, 2012 Utilization of aerobic and anaerobic microorganisms in iron ore beneficiation is discussed. Microorganisms such as Paenibacillus polymyxa, Bacillus subtilis, Saccharomyces cerevisiae (yeast) and Desulfovibrio desulfuricans (SRB) are capable of significantly altering the surface chemical behavior of

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Anand, P, Modak, J M, Natarajan K A, Biobeneficiation of bauxite using Bacillus polymyxa: calcium and iron removal, . International Journal of Mineral Processing 48, No:1-2, November 1996, 51-60. 14. Rai S, Wsewar K L, Mukhopadhyay J, Yoo C K, Uslu H, Neutralization and utilization of red mud for its better waste management, Arch. Environ

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Sep 27, 2014 Red mud, in most cases, contains elevated concentrations of iron in addition to aluminium, titanium, sodium and valuable rare earth elements. Given the scarcity of iron supply globally, the iron content of red mud has attracted increasing research interest. ... Biobeneficiation of bauxite using Bacillus polymyxa: calcium and iron removal. Anand

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Recovery of iron from iron-rich diasporic bauxite ore via reductive roasting followed by magnetic separation has been explored recently. However, the efficiency of alumina extraction in the non-magnetic materials is absent. In this paper, a further study on the digestion of alumina by the Bayer process from non-magnetic material obtained after magnetic separation of reduced iron

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Jun 11, 2020 10.1016/S0892-6875(98)00058-2 10.1016/S0892-6875(98)00058-2 2020-06-11 00:00:00 The utility of BaciUus polymyxa, a heterotrophic bacterium indigenous to ore deposits in the degradation of several flotation collectors has been demonstrated. Dodecyl amine, diamine, isopropyl xanthate and sodium oleate could be efficiently removed from alkaline solutions

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Nov 01, 1996 Calcium and iron removal from a bauxite ore by Bacillus polymyxa has been demonstrated. Within a period of 7 days, the above organism could remove all the calcium and about 45% of iron from the ore in the presence of 2% sucrose in a Bromfield medium. The highest removal of calcium and iron corresponded with the maximum in extracellular

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    It is evident that both direct bacterial attachment as well as indirect mechanisms have a role to play in the biobeneficiation process by Bacillus polymyxa. Calcium is present as calcite (CaCO 3) and iron as hematite (Fe203) and goethite [FeO(OH)] in the ore

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Nov 01, 1999 The biological removal of calcium from a bauxite ore in the presence of the soil bacterium Paenibacillus polymyxa is demonstrated. A column bioreactor that can be either operated in a fluidized-bed (FB) mode for coarser particles or in a total-recycle-slurry (TRS) mode for finer particles was designed, fabricated and tested for this purpose

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  • biobeneficiation of bauxite using bacillus polymyxa calcium and iron
    biobeneficiation of bauxite using bacillus polymyxa calcium and iron

    Sep 30, 2011 Thus, B. polymyxa plays a significant role in biobenficiation of bauxite mineral. These observations clearly indicated that a direct mechanism through bacterial attachment to the ore and an indirect mechanism through leaching with metabolites are involved in the biobeneficiation process

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