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...

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Bibliographic Details
Main Authors: Jarlbring, Mathias, Sandstrom, Dan E, Antzutkin, Oleg N, Holmegren, Allan, Forsling, Willis
Format: Conference Object
Language:unknown
Published: 2006
Subjects:
Minerals and Mining
Kiruna
Kirunavaara
Luossavaara
Northern Sweden
Online Access:http://eprints.nmlindia.org/6237
http://eprints.nmlindia.org/6237/
http://eprints.nmlindia.org/6237/1/270-277.PDF
Description
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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