A professional who supervises and coordinates activities of workers engaged in mixing, curing, calcining, cooling, grinding, and screening powdered phosphate rocks in production of defluorinated phosphate (tricalcium phosphate). Respnsibilities include:

• Observes meters, gauges, and recording-instrument charts to verify specified process conditions, such as flow rates of materials, process temperatures, and operating speed of calciner and feeders.
• Turns dials to regulate automatic controls of various processes.
• Orders changes in weight settings at vibrator-scale feeder, burner setting in calciner, and operating speeds of calciner and feeders, according to production requirements.
• Inspects process and bagging equipment for malfunctions.
• Performs other duties as described under supervisor master title.