Performance evaluation for selectivity of the flocculant on hematite in selective flocculation

Lopamudra Panda, Pradip K. Banerjee, Surendra Kumar Biswal, R. Venugopal, N. R. Mandre

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    Lopamudra Panda, Pradip K. Banerjee, Surendra Kumar Biswal, R. Venugopal, and N. R. Mandre, Performance evaluation for selectivity of the flocculant on hematite in selective flocculation, Int. J. Miner. Metall. Mater., 20(2013), No. 12, pp.1123-1129. https://dx.doi.org/10.1007/s12613-013-0844-y
    Lopamudra Panda, Pradip K. Banerjee, Surendra Kumar Biswal, R. Venugopal, and N. R. Mandre, Performance evaluation for selectivity of the flocculant on hematite in selective flocculation, Int. J. Miner. Metall. Mater., 20(2013), No. 12, pp.1123-1129. https://dx.doi.org/10.1007/s12613-013-0844-y
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    Performance evaluation for selectivity of the flocculant on hematite in selective flocculation

    • Research and Development, Tata Steel Ltd., Jamshedpur, 831007, India

    • Institute of Minerals and Materials Technology (Council of Scientific and Industrial Research), Bhubaneswar, 751013, India

    • Indian School of Mines University, Dhanbad, 826004, India

      通信作者:

      Lopamudra Panda E-mail: lopapanda7@gmail.com

    中文摘要

    Increased demand for iron ore necessitates the utilization of low-grade iron ore fines, slimes, and existing tailings. Selective flocculation can be an alternative physico-chemical process for utilizing these low-grade fines, slimes, and tailings. In selective flocculation, the most critical objective is the selection of proper reagents that will make floc of desired minerals. In present study, selective flocculation was applied to ultra-fine synthetic mixtures of hematite and kaolinite, and the Fe value was upgraded up to 65.78% with the reduction of Al2O3 and SiO2 values to 2.65% and 3.66%, respectively. Here, degraded wheat starch was used as a flocculant.In this process, separation occurs on the basis of the selectivity of the flocculant. The selectivity of the flocculant can be quantified in terms of separation efficiency. Here, an attempt was also made to develop a correlation between separation efficiency and major operating parameters such as flocculent dose, pH value, and solid concentration to predict the separation performance.

     

    Performance evaluation for selectivity of the flocculant on hematite in selective flocculation

    Author Affilications

      • Research and Development, Tata Steel Ltd., Jamshedpur, 831007, India

      • Institute of Minerals and Materials Technology (Council of Scientific and Industrial Research), Bhubaneswar, 751013, India

      • Indian School of Mines University, Dhanbad, 826004, India

    • Received: 20 February 2013; Revised: 06 June 2013; Accepted: 12 June 2013;
    Increased demand for iron ore necessitates the utilization of low-grade iron ore fines, slimes, and existing tailings. Selective flocculation can be an alternative physico-chemical process for utilizing these low-grade fines, slimes, and tailings. In selective flocculation, the most critical objective is the selection of proper reagents that will make floc of desired minerals. In present study, selective flocculation was applied to ultra-fine synthetic mixtures of hematite and kaolinite, and the Fe value was upgraded up to 65.78% with the reduction of Al2O3 and SiO2 values to 2.65% and 3.66%, respectively. Here, degraded wheat starch was used as a flocculant.In this process, separation occurs on the basis of the selectivity of the flocculant. The selectivity of the flocculant can be quantified in terms of separation efficiency. Here, an attempt was also made to develop a correlation between separation efficiency and major operating parameters such as flocculent dose, pH value, and solid concentration to predict the separation performance.

     

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