The Betts process pioneered by Cominco's Trail Operations in 1902 is still used
to efficiently purify lead bullion. Bullion from the Kivcet Furnace is melted and cast into anodes for
electro-refining in the 1000-cell refinery. Refined lead is cast into thin starter sheets for the cathodes.
These anodes and cathodes are set into the cells containing hydrofluosilicic acid (90 g/l) and dissolved lead
(70 g/l) for a five-day cycle. Refined lead cathodes are remelted and cast in required shapes for customers.
In the Lead Refinery, lead bullion is remelted and cast into anodes using an automated casting machine,
making the impure lead ready for electrorefining.
As shown in the photograph below, cell testing is conducted during every shift in the electrolytic Lead
Refinery to correct any electrical shorts between the electrodes.