Gold Smelting Metal Melting Furnaces Equipment
The flux was made up of 62 percent limestone, 35 percent Rogersmine ore plus mill concentrate, and 3 percent soda ash. Onehalf of the flux was added and the charge held at 1,500° C. for 1¼ hours; then the slag was skimmed, the remaining flux added, and the charge held molten an additional 1¼ hours.