Master’s dissertation (Dissertations and theses)
Textural variants of iron ore from Malmberget: characterization, comminution and mineral liberation
Koch, Pierre-Henri
2013
 

Files


Full Text
TFEv035im.pdf
Publisher postprint (4.56 MB)
Download

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Geometallurgy; liberation analysis; Malmberget; apatite iron ore; ore breccia
Abstract :
[en] Geometallurgy combines geology and mineral processing into a spatially-based predictive model and is a useful tool that can be used in production management of a mineral processing plant. Two main complementary approaches exist to establish this model. Geometallurgical testing relies on direct measurement of the response of the ore in the processing circuit by conducting several small scale metallurgical tests. The mineralogical approach relies on proper ore characterization and process modeling on mineral basis. Because the latter is generic and applicable to any type of mineral deposit, it was chosen as the main basis of this study and combined with rock mechanics as basic geometallurgical testing. This work presents comminution characterization of different textural variants of the breccia (semi-massive) iron ore from Malmberget, Northern Sweden. Experimental work includes Point Load Tests, Compressive Tests, comminution as laboratory crushing and grinding, mineralogical characterization and liberation measurements of the products. The results give quantitative information on how physical properties, modal mineralogy and mineral textures are related to comminution and mineral liberation. This work is directly linked with three on-going Ph.D. projects at LTU and contributes to a framework on how mineral textures and liberation information can be included in a geometallurgical model.
Disciplines :
Geological, petroleum & mining engineering
Author, co-author :
Koch, Pierre-Henri ;  Université de Liège - ULiège > Département ArGEnCo > Géoressources minérales & Imagerie géologique
Language :
English
Title :
Textural variants of iron ore from Malmberget: characterization, comminution and mineral liberation
Defense date :
06 June 2013
Number of pages :
104
Institution :
ULiège - Université de Liège
Degree :
Master ingénieur civil des mines et géologue
Promotor :
Lamberg, Pertti
Lund, Cecilia
President :
Pirard, Eric  ;  Université de Liège - ULiège > Urban and Environmental Engineering
Jury member :
Rosenkranz, Jan
Funders :
LKAB
Available on ORBi :
since 19 January 2021

Statistics


Number of views
59 (4 by ULiège)
Number of downloads
181 (6 by ULiège)

Bibliography


Similar publications



Contact ORBi