Lead ingots are used as raw material by the lead battery. lead cable sheathing and lead sheet manufacturers. The quality may differ from pure lead with a purity which can exceeds 99,999%Pb up to remelted lead with an impurity of 2 to 4 % SB. Each lead manufacturer has it's own requirements regarding the quality. Lead ingots manufacturers are specialized in either the pure lead ingot or the remelted ingot. Remelted lead ingots are just remelted battery grids while pure lead ingots are remelted and refined.
The lead from the blast furnace, called lead bullion, then undergoes the drossing process. The bullion is agitated in kettles then cooled to 700-800 degrees. This process results in molten lead and dross. Dross refers to the lead oxides, copper, antimony and other elements that float to the top of the lead.