Roasting Definition (Science)

Glossary Definition of Roasting

Roasting is the name given to the heating of a metal sulfide ore.
Roasting is the name given to the heating of a metal sulfide ore. Falcor / Getty Images

Roasting Definition: Roasting is a process in metallurgy in which a sulfide ore is heated in air. The process may convert a metal sulfide to a metal oxide or to a free metal.

Example: Roasting ZnS may yield ZnO; roasting HgS may yield free Hg metal.