Some Results of Various New Chemical Reagents for Modifying Coal Flotation Performance

Abstract

This paper describes a series of mechanical flotation cell results run with various chemical reagent schemes designed to economically improve the flotation performance associated with selected industrially available coals. The emphasis is on the identification of practical flotation methods of processing coals containing unusually coarse and/or fine feed sizes, of increasing the recovery of oxidized and/or difficult to float coal, and of increasing the selectivity of coal over pyrite in high sulfur coals.

Keywords:

• Coal flotation
• Froth flotation
• Frother
• Promoter
• Pyrite depression
• Flotation kinetics