Job Description:

• 1) Controls saturator tank and auxiliary equipment to precipitate ammonium sulfate by reaction of ammonia with sulfuric acid: Turns valves to admit sulfuric acid and liquid or gaseous ammonia to saturator until precipitation occurs, and to regulate saturation of solution, using titration test to determine acidity of bath.

• 2) Observes temperature and pressure gauges to ascertain that process conditions meet plant standards, and turns valves to maintain operating equilibrium within specified range.

• 3) Notifies supervisor or starts pumps to discharge precipitate onto drain table to settle out crystals, and pumps strained liquor back to bath.

• 4) Records gauge readings for operating log.

• 5) May move controls to reheat gas prior to saturation.

• 6) May tend centrifuge to dry ammonium sulfate.

• 7) May take samples of product and constituents for laboratory analysis.