Slag furnace

(Metal.) a furnace, or hearth, for extracting lead from slags or poor ore.

See also: Slag

References in periodicals archive ?
The smelter campaign involves combined investment in the following three key areas to ensure the ongoing integrity of critical infrastructure and to continue to deliver safe and reliable performance: rebuilding key elements of the smelter flash furnace; demolishing and building a new electric slag furnace; and removing and replacing the five-story high electro static precipitator.
was in the process of rebuilding and modernizing its nine titanium slag furnaces in Sorel, Quebec.