The influence of mineralogy on microwave assisted grinding

The influence of mineralogy on microwave assisted grinding is elucidated. Detailed mineralogical analysis of various commercially exploited ores was carried out and the textural relationships between the individual mineral phases established. Microwave heating profiles were determined for each const...

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Published inMinerals engineering Vol. 13; no. 3; pp. 313 - 327
Main Authors Kingman, S.W., Vorster, W., Rowson, N.A.
Format Journal Article
LanguageEnglish
Published Oxford Elsevier Ltd 01.03.2000
Elsevier Science
Subjects
Applied sciences
Crushing. Screening (sizing). Classification
Exact sciences and technology
grinding
Metals. Metallurgy
mineral economics
Mineral processing
ore mineralogy
Ores
Production of metals
ore mineralogy
mineral economics
grinding
Mineral processing
Ore grinding
Mineralogy
Comminution
Microwave heating
Experimental study
Mining industry
Ilmenite
Sulfide ore
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Summary:The influence of mineralogy on microwave assisted grinding is elucidated. Detailed mineralogical analysis of various commercially exploited ores was carried out and the textural relationships between the individual mineral phases established. Microwave heating profiles were determined for each constituent mineral. Each ore was then subjected to microwave radiation for varying time periods, and change in work index with microwave exposure time quantified. It is suggested that increases in grindability of ores after microwave treatment are related to the specific mineral species present, particle size of the specific mineral and also the degree of dissemination. Conclusions are made regarding the economic implementation of this technology.
ISSN:0892-6875
1872-9444
DOI:10.1016/S0892-6875(00)00010-8