| Job Title |
Aluminum-hydroxide-process Operator |
| Job Description |
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. Dumps Preweighed Bags Of Aluminum Sulfate Into
Kettle, And Starts Agitator To Dissolve Ingredient. Meters
Specified Amounts Of Hot Water And Ammonia Into Mixing Tank And
Starts Agitator. Pumps Aluminum Sulfate Solution Through Filter
Press Into Heated Agitator Tank To Remove Insoluble Materials.
Pumps Ammonia Solution To Tank With Aluminum Sulfate Solution.
Ladles Sample Of Mixture, Adds Test Solution, And Observes Color
Reaction To Determine Degree Of Precipitation. Adds Specified
Ingredients To Mixing Tank To Complete Precipitation, According
To Results Of Test. Pumps Slurry Through String Filter To
Separate Aluminum Hydroxide From Mixture. May Replace Filtering
Media And Repair Equipment, Using Handtools.
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