Job Description:

• 1) Tends heated kettle and filter press in which lye is treated with chemicals to remove undesirable properties in glycerine purification process: Starts pump to transfer premeasured lye into kettle, starts agitator to mix batch, and turns steam valve to heat kettle to prescribed temperature.

• 2) Dumps specified amounts of dry chemicals or pumps liquid chemicals into kettle to attain product of specified concentration.

• 3) Inspects batch sample for clarity and submits sample laboratory for testing.

• 4) Regulates chemical concentration of batch, following laboratory report.

• 5) Pumps batch through filter press to remove materials precipitated during treatment.

• 6) Cleans filter press and replaces filter cloths, using handtools.

• 7) Records kettle temperature, agitation and treating time, and amount of chemicals used in process.