Technical Note

Recovery and utilization of iron and carbon values from blast furnace flue dust

A. Yehia, F.H. El-Rehiem*

Central Metallurgical Research and Development Institute, P.O. Box: 87 Helwan, Cairo, Egypt

Accepted 02 February 2005


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.

Keywords: Flue dust, Magnetic separation, Froth flotation

* Corresponding author
   E-mail : rababrashad2003@yahoo.mail