Pilot plant investigations into roasting and electric furnace smelting at Falconbridge Limited

"Extensive pilot plant investigations were conducted both on partial roasting an d electric furnace smelting from September 1973 to August 1975.The objectives of the pilot plant investigations were:(I ) to confirm the application of available process technology to treatment of Falconbridge concentrate.(2) to examine partial roasting variables.(3) to investigate electric furnace smelting of roaster calcines .(4) to develop process design and operating parameters for a commercial plant.This part of the paper will cover the following topics:Partial Roasting InvestigationsPilot Electric Furnace InvestigationsPartial Roasting InvestigationsThe specific objectives were to:1. establish process variables for maximum oxygen efficiency and bed fluidi ation.2. determine the product distribution between the roaster and the various gas cleaning stages.3. produce a mass and thermal balance."