Paper published in a book (Scientific congresses and symposiums)
Process oriented characterisation of oolitic iron concentrate during dephosphorisation by roasting and leaching
Ionkov, Krassimir; Gomes, Otavio; Neumann, Reiner et al.
2016In Proceedings of the XXVIII International Mineral Processing Congress (IMPC 2016)
Peer reviewed
 

Files


Full Text
impcPaper161.pdf
Publisher postprint (1.01 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
iron ore; phosphorous removal; characterisation
Abstract :
[en] Phosphorus in iron ores is considered as a deleterious component to iron making reflecting in cold shortness of the produced steel. The present study investigates the phosphorus migration pattern resulting from thermal treatment of an oolitic-type iron concentrate with and without additives. To this end focused mineralogical and microscopic observations were performed. The results have shown that roasting with alkaline additive drives phosphorus outside the hematite hosting mineral, however it remains evenly distributed inside the volume of the oolites. It penetrates inside the newly formed cementing phases of Al-Na-Si-Fe-type and also fills the interstices between the crystals. Other than phosphorus, aluminum, calcium and iron tend also to migrate towards the amorphous-type cementing phase. Finally, the possibilities for P removal by means of magnetic separation and acid leaching of the roasted concentrate were evaluated. The obtained final product presents a standard iron concentrate suitable for steelmaking with its phosphorous being dropped from 0.71% to 0.05% and iron grade of a nearly 66% being reached.
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Ionkov, Krassimir 
Gomes, Otavio;  CETEM
Neumann, Reiner;  CETEM - Centre for Mineral Technology
Gaydardzhiev, Stoyan  ;  Université de Liège > Département ArGEnCo > Traitement et recyclage des matières minérales
Corea de Araujio, Armando
Language :
English
Title :
Process oriented characterisation of oolitic iron concentrate during dephosphorisation by roasting and leaching
Publication date :
September 2016
Event name :
28 International Mineral Processing Congress
Event organizer :
The Canadian Institute of Mining, Metallurgy and Petroleum
Event place :
Quebec City, Canada
Event date :
10 - 15 September 2016
Audience :
International
Main work title :
Proceedings of the XXVIII International Mineral Processing Congress (IMPC 2016)
Publisher :
The Canadian Institute of Mining, Metallurgy and Petroleum, West Westmount, Canada
ISBN/EAN :
978-1-926872-29-2
Peer reviewed :
Peer reviewed
Available on ORBi :
since 10 October 2016

Statistics


Number of views
142 (3 by ULiège)
Number of downloads
3 (2 by ULiège)

Scopus citations®
 
9
Scopus citations®
without self-citations
9

Bibliography


Similar publications



Contact ORBi