Electrical separation - CONCENTRATION OF MINERALS
Electrical separation is used frequently with magnetic separation and gravity separation. Flotation can be used for eliminate silycates out of the iron concentrate. Next effects exist in nature:Developments in the physiochemical separation of iron,01-01-2015· Iron ore flotation 11.3.1. Separation of silica from iron ore by flotation. In the literature, there are several excellent reviews of iron ore flotation, with emphasis on the practice in North America, by Trahar (1963), Iwasaki (1983), Houot (1983), Nummela and Iwasaki (1986), Uwadiale (1992), Iwasaki (1999), Nummela (1978), and Araujo et al,Iron Ore Reduction - an overview | ScienceDirect Topics,The hot potassium carbonate process has been used effectively in many ammonia, natural gas, hydrogen, direct iron ore reduction, and ethylene oxide plants for many decades (Chapel et al., 1999). German patents using hot carbonate absorption of CO 2 can be found from as early as 1904 ( Kohl and Riesenfeld, 1985 ).