Microwave plasma roasting of pyrite and pyrite tailings with coal for reduction to sponge iron in tube furnace

Abstract

Pyrite concentrates from copper ores is usually sold to the primary sulphuric acid production. However, use of iron cinder, preparation of iron waste slimes reductive roasting preparation is a viable technical and economical alternative to traditional smelting and roasting. There were various objectives to make the necessary arrangements to increase the use of pyrite tailings and ash and lower energy consumption for the other processing iron ores. Considering the known conventional preparation area of the potential high yields in Southeastern Anatolia and located in eastern Anatolia the low grade iron ore deposits were seen as having low to medium recovery resources. As we have seen in our country there is a significant potential for iron ores and concentration should be invested. The low content iron wastes will also be great source for iron nodules and sponge iron production in comparison to ore pellets production may reach over 70 % thermal performances by cutting reduction pig iron.