Characterization and Beneficiation of Iron Ore Tailings by Selective Flocculation

In the present paper, an attempt has been made to beneficiate iron ore tailings by selective flocculation using guar gum and starch as flocculants along with sodium hexametaphosphate (SHMP) as the dispersant. The mineralogical studies carried out initially indicated the presence of hematite and goet...

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Bibliographic Details
Published inTransactions of the Indian Institute of Metals Vol. 69; no. 7; pp. 1459 - 1466
Main Authors Kumar, Rakesh, Mandre, N. R.
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.09.2016
Subjects
Chemistry and Materials Science
Corrosion and Coatings
Materials Science
Metallic Materials
Technical Note
Tribology
Iron ore slimes
Beneficiation
Starch
Selective flocculation
Guar gum
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Summary:In the present paper, an attempt has been made to beneficiate iron ore tailings by selective flocculation using guar gum and starch as flocculants along with sodium hexametaphosphate (SHMP) as the dispersant. The mineralogical studies carried out initially indicated the presence of hematite and goethite as major iron bearing mineral phases along with quartz and kaolinite as major gangue minerals. The selective flocculation process showed that the Fe grade could be enhanced from 58.24 to 65.32 % Fe using starch as flocculant with a recovery of 62.08 %. However, 63.2 % Fe with a recovery of 68.04 % was obtained using guar gum as the flocculant. The efficacy of the studies were analysed using separation efficiency which indicated higher separation efficiency with the tests employing starch as the flocculant along with SHMP.
ISSN:0972-2815
0975-1645
DOI:10.1007/s12666-015-0667-9