Job Description:

• 1) Controls equipment to leach out metal from ore in solution: Weighs sample of solution and evaporates moisture from it, using heater.

• 2) Reweighs sample to determine percentage of solid material in solution.

• 3) Siphons water from solution to obtain specified concentration, following chart.

• 4) Turns valves to feed chemicals, such as cyanide or acid, into tank of ground ore or filtered slime.

• 5) Starts mechanical agitators and observes percolation of solution to ascertain dissolution of ore.

• 6) Tests solution with hydrometer to determine degree of ore concentration.

• 7) Obtains sample of solution for laboratory analysis.

• 8) May supervise workers in loading and excavating leaching tanks.

• 9) May tend filtering machine to separate fluids from metal.

• 10) May tend pumps to force ground ore and solution into or from tanks.

• 11) May lubricate equipment and clean tank with water hose.

• 12) May heat solution in tank with steam and add premeasured amounts of solid materials, such as manganese.

• 13) May be designated according to ore leached as Molybdenum-Leaching-Plant Operator.