[Code of Federal Regulations]
[Title 40, Volume 6]
[Revised as of July 1, 2006]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR60.401]

[Page 403]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 60_STANDARDS OF PERFORMANCE FOR NEW STATIONARY SOURCES--Table of 
Contents
 
      Subpart NN_Standards of Performance for Phosphate Rock Plants
 
Sec.  60.401  Definitions.

    (a) Phosphate rock plant means any plant which produces or prepares 
phosphate rock product by any or all of the following processes: Mining, 
beneficiation, crushing, screening, cleaning, drying, calcining, and 
grinding.
    (b) Phosphate rock feed means all material entering the process 
unit, including moisture and extraneous material as well as the 
following ore minerals: Fluorapatite, hydroxylapatite, chlorapatite, and 
carbonateapatite.
    (c) Dryer means a unit in which the moisture content of phosphate 
rock is reduced by contact with a heated gas stream.
    (d) Calciner means a unit in which the moisture and organic matter 
of phosphate rock is reduced within a combustion chamber.
    (e) Grinder means a unit which is used to pulverize dry phosphate 
rock to the final product size used in the manufacture of phosphate 
fertilizer and does not include crushing devices used in mining.
    (f) Ground phosphate rock handling and storage system means a system 
which is used for the conveyance and storage of ground phosphate rock 
from grinders at phosphate rock plants.
    (g) Beneficiation means the process of washing the rock to remove 
impurities or to separate size fractions.

[47 FR 16589, Apr. 16, 1982, as amended at 65 FR 61760, Oct. 17, 2000]