pyrite roasting

pyrite roasting

[′pī‚rīt ′rōst·iŋ]
(mining engineering)
Thermal processing of iron pyrite (FeS2, iron disulfide) in the presence of air to produce iron oxide sinter (used in steel mills) and elemental sulfur.
References in periodicals archive ?
Increased pressure from disposal of the sinter continues to encumber pyrite roasting as a source of sulphur.