Abstract
AbstractMicrowave radiation has potential applications in the metallurgical industry although little has been published on the reaction of microwaves with minerals. In this paper, 40 minerals have been exposed individually to microwave radiation in air to ascertain their general behaviour. Most silicates, carbonates and sulfates, some oxides and some sulfides are transparent to microwave energy but other oxides are readily heated. Both natural and synthetic jarosite-type compounds are unaffected by microwave irradiation. Most sulfides, arsenides, sulfosalts and sulfarsenides are readily heated and consequently, fuse or dissociate prior to eventual oxidation. Microwave effects are compositionally dependent, and elemental substitutions affect the mineral behaviour. Resume Les radiations d'onde ultra-courte ont un potential d'application dans l'industrie metallurgique bien que peu ont ete publie sur la reaction d'onde ultra-courte sur les mineraux. Dans ce rapport, 40 mineraux ont ete exposes individuellemen...
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