Characterisation of the physical and metallurgical properties of Muko iron ore for iron production
(English)Manuscript (preprint) (Other academic)
The blast furnace is still the dominant form of iron production, but over the years direct reduction methods have been consistently gaining ground due to a number of reasons. All the iron production methods have optimal requirements for the feed materials especially iron ore. Tests were carried out on Muko iron ore from Uganda to analyse its capacity to meet the feed requirements for the dominant iron production methods used today. Determination of the tumbler, abrasion and shatter indices, porosity and particle size distribution, thermo-analysis and reducibility were performed. Muko ore was found to have good mechanical properties with tumble and shatter index > 89.0 wt% and < 2.5 wt% respectively. The ore can also be easily reduced to particle size ranges suitable for the sintering operations. Its reducibility at 0.868%/min is within the acceptable range as a raw material feed for blast furnace and direct reduction furnaces. The energy requirement for heating the ore to 1100ºC was found to be higher in the samples with wider size range of irregular grains and biggest inclusions. It exhibits good physical and metallurgical properties to serve as a raw material for the blast furnace and direct reduction furnaces.
physical and metallurgical properties, iron ore, iron, direct reduction, blast furnace, Muko, Uganda
IdentifiersURN: urn:nbn:se:kth:diva-25071OAI: oai:DiVA.org:kth-25071DiVA: diva2:355590
QC 201010072010-10-072010-10-072010-10-07Bibliographically approved