Smelting furnace
Smelting furnace means a furnace, reactor, or other type of vessel in which copper ore concentrate and fluxes are melted to form a molten mass of material containing copper matte and slag. Other copper-bearing materials may also be charged to the smelting furnace.
Source
40 CFR § 63.1459
Scoping language
Terms used in this subpart are defined in the Clean Air Act, in 63.2, and in this section as follows: