Despite the fact that over 70 years ago the industrial flotation practice already considered the mixture of oils as chain extenders, detailed studies on interactions between flotation reagents appeared only in the sixties. The initial work investigations were dedicated to the study of the mixtures of anionic or cationic reagents with alcohols. Publications during the last 20 years have been related to the adsorption of collector mixtures: at the alumina-water interface, the feldspar flotation, and the reverse flotation of hematite. The present work reviews the main aspects of collector mixture in the flotation and shows the microflotation results of some silicates with the combination of anionic and cationic collectors.
Flotation; silicate; collector mixture
