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 ?
Projects underway at the moment include a precious metals plant for Poland and two pyrite roasting plants for China.
Pyrite roasting 6.2 12 Sub-total 16.2 32 Total SAF Production 51.3 100 * Totals may not add due to rounding.
Estimated 1993 Production Elemental M mt Percent(*) Recovered from natural gas 17.0 32 Recovered from oil refining/other 12.2 23 Mined sulphur 6.1 11 Sub-total 35.3 65 Non-elemental Smelters/other 10.1 19 Pyrite roasting 8.5 16 Sub-total 18.6 35 Total SAF Production 53.9 100 * Totals may not add due to rounding.