Fine particles processing: shear-flocculation and carrier flotation — a review

Removal of Trace Impurity from Limestone Using Flotation Techniques

“…The carrier attaches to the fine particles, then adsorbs on bubbles and floats. It has been widely reported that carrier flotation is effective to remove fine particles in small amounts 15) with coal, 16) anatase, 17) and gold. 18) In the carrier flotation, a low-grade limestone with 0.15 mass% impurities and of 106-149 mm particle size was used as the carrier, because the low-grade limestone is easily obtained in situ and the carrier/impurity mixture recovered by the flotation can be expected to find usage in cement production.…”

Enhanced flotation of sulfide fines using the emulsified oil extender technique

“…Different alternatives for enhanced mineral fines recovery have been proposed over the last three decades but unfortunately most of them have not found practical applications yet (Bulatovic and Wyslouzil, 2000, Subrahmanyan and Fossberg, 1990, Song and Valdivieso, 1998, Rubio and Hoberg, 1993, Warren, 1992, Mehrotra et al, 1983. A good example is the case of "selective" flocculation of valuable particles with polyelectrolyte flocculants, which despite more than 30 years of extensive studies, still remain a qpromisingq process (Kitchener, 1978, Rubio and Kitchener, 1977, Sivamohan, 1990, Mathur et al, 2000.…”

DAF–dissolved air flotation: Potential applications in the mining and mineral processing industry

“…Many different processes to reduce this problem have been proposed but most of them have not found practical applications yet (Collins and Read, 1971;Trahar and Warren, 1976;Fuerstenau, 1980;Subrahmanyan and Fossberg, 1990;Sivamohan, 1990;.…”