Comparison of selective flocculation of low grade goethitic iron ore fines using natural and synthetic polymers and a graft copolymer

Kichakeswari Tudu, Sagar Pal, N. R. Mandre

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Kichakeswari Tudu, Sagar Pal, and N. R. Mandre, Comparison of selective flocculation of low grade goethitic iron ore fines using natural and synthetic polymers and a graft copolymer, Int. J. Miner. Metall. Mater., 25(2018), No. 5, pp.498-504. https://dx.doi.org/10.1007/s12613-018-1596-5
Kichakeswari Tudu, Sagar Pal, and N. R. Mandre, Comparison of selective flocculation of low grade goethitic iron ore fines using natural and synthetic polymers and a graft copolymer, Int. J. Miner. Metall. Mater., 25(2018), No. 5, pp.498-504. https://dx.doi.org/10.1007/s12613-018-1596-5
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研究论文

Comparison of selective flocculation of low grade goethitic iron ore fines using natural and synthetic polymers and a graft copolymer

  • Department of Fuel and Mineral Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India

  • Polymer Chemistry Laboratory, Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India

基金项目: 

The authors gratefully acknowledge the Steel Authority of India Limited for providing low grade iron ore samples for this investigation and also the National Metallurgical Laboratory, Jamshedpur for their kind support. The authors would also like to thank Central Research Facility, Indian Institute of Technology (ISM) Dhanbad for providing analytical facilities.

    通信作者:

    Kichakeswari Tudu E-mail: tudukichakeswari10@gmail.com

中文摘要

This study aims to beneficiate low grade goethitic iron ore fines using a selective flocculation process. Selective flocculation studies were conducted using different polymers such as starch amylopectin (AP), poly acrylic acid (PAA), and a graft copolymer (AP-g-PAA). The obtained results were analyzed; they indicate the enhancement of the iron ore grade from 58.49% to 67.52% using AP-g-PAA with a recovery of 95.08%. In addition, 64.45% Fe with a recovery of 88.79% was obtained using AP. Similarly, using PAA, the grade increased to 63.46% Fe with a recovery of 82.10%. The findings are also supported by characterizing concentrates using X-ray diffraction (XRD) and electron probe microanalysis (EPMA) techniques.

 

Research Article

Comparison of selective flocculation of low grade goethitic iron ore fines using natural and synthetic polymers and a graft copolymer

Author Affilications

    • Department of Fuel and Mineral Engineering, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India

    • Polymer Chemistry Laboratory, Department of Applied Chemistry, Indian Institute of Technology (Indian School of Mines), Dhanbad 826004, India

  • Funds: 

    The authors gratefully acknowledge the Steel Authority of India Limited for providing low grade iron ore samples for this investigation and also the National Metallurgical Laboratory, Jamshedpur for their kind support. The authors would also like to thank Central Research Facility, Indian Institute of Technology (ISM) Dhanbad for providing analytical facilities.

  • Received: 26 July 2017; Revised: 13 October 2017; Accepted: 18 October 2017;
This study aims to beneficiate low grade goethitic iron ore fines using a selective flocculation process. Selective flocculation studies were conducted using different polymers such as starch amylopectin (AP), poly acrylic acid (PAA), and a graft copolymer (AP-g-PAA). The obtained results were analyzed; they indicate the enhancement of the iron ore grade from 58.49% to 67.52% using AP-g-PAA with a recovery of 95.08%. In addition, 64.45% Fe with a recovery of 88.79% was obtained using AP. Similarly, using PAA, the grade increased to 63.46% Fe with a recovery of 82.10%. The findings are also supported by characterizing concentrates using X-ray diffraction (XRD) and electron probe microanalysis (EPMA) techniques.

 

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    R. Kumar and N.R. Mandre, Characterization and beneficiation of iron ore tailings by selective flocculation, Trans. Indian Inst. Met., 69(2016), No. 7, p. 1459.

    S.A. Ravishankar, Pradip, and N.K. Khosla, Selective flocculation of iron oxide from its synthetic mixtures with clays: a comparison of polyacrylic acid and starch polymers, Int. J. Miner. Process., 43(1995), No. 3-4, p. 235.

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    A.K. Sarkar, N.R. Mandre, A.B. Panda, and S. Pal, Amylopectin graft with poly (acrylic acid): Development and application of a high performance flocculant, Carbohydr. Polym., 95(2013), No. 2, p. 753.

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    N.R. Mandre and D. Panigrahi, Studies on selective flocculation of complex sulphides using cellulose xanthate, Int. J. Miner. Process., 50(1997), No. 3, p. 177.
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