Superphosphoric acid process line
Superphosphoric acid process line means any process line that concentrates wet-process phosphoric acid to 66 percent or greater P2O5 content by weight. A superphosphoric acid process line includes: evaporators, hot wells, acid sumps, oxidation reactors, and cooling tanks.
40 CFR § 63.601
Terms used in this subpart are defined in 63.2 of the Clean Air Act and in this section as follows: