Comparison of selective flocculation of low grade goethitic iron ore fines using natural and synthetic polymers and a graft copolymer
来源期刊：International Journal of Minerals Metallurgy and Materials2018年第5期
论文作者：Kichakeswari Tudu Sagar Pal N.R.Mandre
文章页码：498 - 504
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.
Kichakeswari Tudu1，Sagar Pal2，N.R.Mandre1
1. Department of Fuel and Mineral Engineering,Indian Institute of Technology (Indian School of Mines)2. Polymer Chemistry Laboratory,Department of Applied Chemistry,Indian Institute of Technology (Indian School of Mines)
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.
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