ABSTRACT
The iron ore mining industry in the U.S. is facing strong competition from high-grade overseas sources. In order for the American iron ore industry to remain competitive, research on low-cost beneficiation methods that ensure high-quality and uniform-quality products must be maintained in order to prepare for ever-tightening specifications on ironmaking raw materials for blast furnaces and for direct reduction processes. In this article, some of the past developments are reviewed and future prospects are discussed with a special emphasis on flotation technology.
