[Title 40 CFR 60.181]
[Code of Federal Regulations (annual edition) - July 1, 2009 Edition]
[Title 40 - PROTECTION OF ENVIRONMENT]
[Chapter I - ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)]
[Subchapter C - AIR PROGRAMS (CONTINUED)]
[Part 60 - STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--]
[Subpart R - Standards of Performance for Primary Lead Smelters]
[Sec. 60.181 - Definitions.]
[From the U.S. Government Printing Office]


40PROTECTION OF ENVIRONMENT62009-07-012009-07-01false60.181Sec. 60.181PROTECTION OF ENVIRONMENTENVIRONMENTAL PROTECTION AGENCY (CONTINUED)AIR PROGRAMS (CONTINUED)STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Standards of Performance for Primary Lead Smelters
Sec. 60.181  Definitions.

    As used in this subpart, all terms not defined herein shall have the 
meaning given them in the Act and in subpart A of this part.
    (a) Primary lead smelter means any installation or any intermediate 
process engaged in the production of lead from lead sulfide ore 
concentrates through the use of pyrometallurgical techniques.
    (b) Sintering machine means any furnace in which a lead sulfide ore 
concentrate charge is heated in the presence of air to eliminate sulfur 
contained in the charge and to agglomerate the charge into a hard porous 
mass called sinter.
    (c) Sinter bed means the lead sulfide ore concentrate charge within 
a sintering machine.
    (d) Sintering machine discharge end means any apparatus which 
receives sinter as it is discharged from the conveying grate of a 
sintering machine.
    (e) Blast furnace means any reduction furnace to which sinter is 
charged and which forms separate layers of molten slag and lead bullion.
    (f) Dross reverberatory furnace means any furnace used for the 
removal or refining of impurities from lead bullion.
    (g) Electric smelting furnace means any furnace in which the heat 
necessary for smelting of the lead sulfide ore concentrate charge is 
generated by passing an electric current through a portion of the molten 
mass in the furnace.
    (h) Converter means any vessel to which lead concentrate or bullion 
is charged and refined.
    (i) Sulfuric acid plant means any facility producing sulfuric acid 
by the contact process.