Recovery and utilization of
iron and carbon values from blast furnace flue dust
Waste recycling in integrated iron and steel plant is important with regard
to environmental and economic consideration. However, recycling of the waste
needs to be supported by metallurgical studies to reap the maximum economic
benefit. In this article, a typical flue dust sample obtained from Egyptian
iron and steel company was characterized and the amenability of recovering
iron and carbon values from it, was investigated. Flotation was used to
recover carbon values while magnetic separation was employed for iron values
recovery. It was possible to recover about 99% of carbon values with 87.18%.
Besides, high intensity magnetic separation was adopted to recover clean
magnetic fraction with 79% recovery and assayed 52.40% Fe.