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

doi:10.1007/s12613-018-1596-5

Volume 25 Issue 5

May 2018

Turn off MathJax

Article Contents

Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2018 > 25(5): 498-504

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://doi.org/10.1007/s12613-018-1596-5

Cite this article as:

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://doi.org/10.1007/s12613-018-1596-5

Citation:

PDF( 725 KB)

Research Article

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

+ Author Affiliations

Corresponding author:
Kichakeswari Tudu E-mail: tudukichakeswari10@gmail.com
Received: 27 July 2017; Revised: 14 October 2017; Accepted: 19 October 2017

Abstract

Abstract

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.
- low grade iron ore fines;
- selective flocculation;
- graft copolymer;
- amylopectin (AP);
- poly acrylic acid (PAA)

FullText(HTML)

Supplements(0)

References(17)

References

[1]	A.C. Araujo, P.R.M. Viana, and A.E.C. Peres, Reagents in iron ores flotation, Miner. Eng., 18(2005), No. 2, p. 219.
[2]	M. Ma, Froth flotation of iron ores, Int. J. Min. Eng. Miner. Process., 1(2012), No. 2, p. 56.
[3]	M. Dworzanowski, Maximizing the recovery of fine iron ore using magnetic separation, J. South Afr. Inst. Min. Metall., 112(2012), No. 3, p. 197.
[4]	S. Roy, Recovery improvement of fine iron ore particles by multi gravity separation, Open Miner. Process. J., 2(2009), p. 17.
[5]	P. Pradip, Beneficiation of alumina rich Indian iron ore slimes, Met. Mater. Processes, 6(1994), No. 3, p. 179.
[6]	N.R. Mandre, Selective flocculation of low-grade iron ore fines, [in] XXVI International Mineral Processing Congress, New Delhi, 2012, p. 3220.
[7]	L.O. Filippov, V.V. Severov, and I.V. Filippova, Mechanism of starch adsorption on Fe–Mg–Al-bearing amphiboles, Int. J. Miner. Process., 123(2013), No. 6, p. 120.
[8]	L. Panda, S.K. Biswal, and V. Tathavadkar, Beneficiation of synthetic iron ore kaolinite mixture using selective flocculation, J. Miner. Mater. Charact. Eng., 9(2010), No. 11, p. 973.
[9]	M. Dash, R.K. Dwari, S.K. Biswal, P.S.R. Reddy, P. Chattopadhyay, and B.K. Mishra, Studies on the effect of flocculant adsorption on the dewatering of iron ore tailings, Chem. Eng. J., 173(2011), No. 2, p. 318.
[10]	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.
[11]	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.
[12]	S. Mathur, P. Singh, and B.M. Moudgil, Advances in selective flocculation technology for solid-solid separations, Int. J. Miner. Process., 58(2000), No. 1-4, p. 201.
[13]	M. Schintu, P. Meloni, and A. Contu, Aluminum fractions in drinking water from reservoirs, Ecotoxicol. Environ. Saf., 46(2000), No. 1, p. 29.
[14]	J. Xiao and Q. Zhou, Natural Polymer Flocculants, Chemical Industry Press, Beijing, 2005.
[15]	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.
[16]	W.P. Talmage and E.B. Fitch, Determining thickener unit areas, Ind. Eng. Chem., 47(1955), No. 1, p. 38.
[17]	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.