Autoclave
Autoclave means a pressure oxidation vessel that is used to treat gold ores (primarily sulfide refractory ore) and involves pumping a slurry of milled ore into the vessel which is highly pressurized with oxygen and heated to temperatures of approximately 350 to 430 F.
Source
40 CFR § 63.11651
Scoping language
Terms used in this subpart are defined in the Clean Air Act, in 63.2, and in this section as follows: