A professional who tends gas-fired evaporator that recovers gold, platinum, and palladium from electrolyte used in gold-refining tanks. Respnsibilities include:

• Adds liquid and gaseous reagents to electrolyte and heats it in evaporator to precipitate metals.
• Separates each precipitate from solution, using porcelain filters.
• Heats platinum and palladium precipitates in crucible furnaces to make sponge. Breaks up sponge preparatory to shipment, using pliers.