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"ALUMINUM-HYDROXIDE-PROCESS OPERATOR"
Job Description and Jobs

Job Description:

  • 1) Tends steam-jacketed kettles, mixing tanks, filter press, string filter, and related equipment to process ammonia solution and aluminum sulfate into aluminum hydroxide: Meters water into steam-jacketed kettle and sets thermostat at specified temperature.

  • 2) Dumps preweighed bags of aluminum sulfate into kettle, and starts agitator to dissolve ingredient.

  • 3) Meters specified amounts of hot water and ammonia into mixing tank and starts agitator.

  • 4) Pumps aluminum sulfate solution through filter press into heated agitator tank to remove insoluble materials.

  • 5) Pumps ammonia solution to tank with aluminum sulfate solution.

  • 6) Ladles sample of mixture, adds test solution, and observes color reaction to determine degree of precipitation.

  • 7) Adds specified ingredients to mixing tank to complete precipitation, according to results of test.

  • 8) Pumps slurry through string filter to separate aluminum hydroxide from mixture.

  • 9) May replace filtering media and repair equipment, using handtools.

 

 

 


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End Of Job Description for: "ALUMINUM-HYDROXIDE-PROCESS OPERATOR"
DOT:   559.685-014

Job Number: 5311