Mechanism for Higher Iron Grade of Reverse Flotation Tailings of AnshanType Hematite Ore

doi:10.12068/j.issn.1005-3026.2013.11.030

Abstract

Abstract: For the high iron grade in tailings of Anshantype hematite reverse flotation process， chemical element composition， phase composition， particle size distribution and mineral dissociation degree of samples collected from reverse flotation process were carried out by means of Xray diffraction analysis， chemical element analysis， granularity analysis and scanning electron microscope. The results show that some highly dissociated superfine iron minerals exist in scavenging tailings， which adsorb on some coarse gangue minerals to form “carrier flotation” and entered into tailings along with the carrier， and cause the higher iron grade of tailings.

Key words: hematite, carrier flotation, adsorption, reverse flotation, grade

CLC Number:

LI Lixia， ZHU Yulan， YUAN Zhitao， YAN Zan. Mechanism for Higher Iron Grade of Reverse Flotation Tailings of AnshanType Hematite Ore[J]. Journal of Northeastern University(Natural Science), 2013, 34(11): 1647-1650.

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