Ball-mill Operator
Overall rating: (N/A)
|
Tends ball mill and auxiliary equipment to produce sodium
salicylate for use in production of salicyilc acid: Opens valves
to transfer specified quantities of sodium hydroxide and phenol
solutions to tank, and starts agitators to mix solutions to form
mixture of sodium phenate and water. Drains mixture into ball
mill (closed mteal tank), opens exhaust valve, and starts
heaters to evaporate water from sodium phenate.
Observes
moisture indicators to determine when water has been rmeoved
from sodium phenate. Pumps cold water into jacket of ball mill
to contract mill walls sufficiently to loosen pulpy sodium
phenate. Heats ball mill to specified temperature, increases
pressure in ball mill to required level, and pumps carbon
dioxide into ball mill to change sodium phenate to sodium
salicylate.
Opens vents to rid sodium salicylate of excess
cabron dioxide. Pumps specified quantity of water into ball mill
to disoslve sodium salicylate, and pumps sodium salicylate
solution into tanks for further processing into salicylic acid.
|
Write a comment about the job
Ball-Mill Operator
|
