The Surface Properties of Aqueous Fluorapatite & Maghemite with Reference to the Dephorization of Magnetite
The Luossavaara-Kirunavaara AB(LKAB) in northern Sweden is one of the biggest suppliers in the world of high grade iron ore products. However, the Kiruna magnetite ore deposit contains an average of 1 wt% phosphorus (mainly fluorapatite), which is detrimental to the blast-furnace technology and the...
Main Authors: | , , , , |
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Format: | Conference Object |
Language: | unknown |
Published: |
2006
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Subjects: | |
Online Access: | http://eprints.nmlindia.org/6237 http://eprints.nmlindia.org/6237/ http://eprints.nmlindia.org/6237/1/270-277.PDF |
Summary: | The Luossavaara-Kirunavaara AB(LKAB) in northern Sweden is one of the biggest suppliers in the world of high grade iron ore products. However, the Kiruna magnetite ore deposit contains an average of 1 wt% phosphorus (mainly fluorapatite), which is detrimental to the blast-furnace technology and the quality of the iron products. Conseque-ntly the apatite content has to be minimized. After magne-tic separation the dephosphorization is performed by froth flotation of the apatite from magnetite fines using a fatty acid type collector (ATRAC)in a combination with sodium silicate. The concentrated magnetite fines are then treated in a pelletizing plant. |
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