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TITLE(s): SODA-COLUMN OPERATOR (chemical) Controls carbonating tower to precipitate sodium bicarbonate crystals from ammoniated brine in Solvay process production of soda ash: Observes temperature, pressure, and flowmeter gauges and adjusts valves and controls to admit ammonia and brine to converter and to regulate process conditions, according to plant procedure. Tests concentration of product, using standard test equipment and procedure, and adjusts temperature in tower to produce sodium bicarbonate crystals of specified size and concentration for efficient filtering, washing, and drying of product, to form soda ash. Flushes feedlines, using steam hose; and replaces gaskets, using handtools. May tend stills and related equipment to produce ammonia for absorption into brine. GOE: 06.02.11 STRENGTH: L GED: R3 M2 L2 SVP: 4 DLU: 77 ONET CROSSWALK: 92935 Chemical Equipment Controllers and Operators | |||||||||||||||||||||||||||||||||||
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