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1 Physicochemical Problems of Mineral Processing

1 2016

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Toner recovery from suspensions with fiber and comparative analysis of two kinetic models

Trumic M. S., Antonijevic M. M.

Physicochemical Problems of Mineral Processing

2016

Vol. 52, iss. 1

5--17

This paper studies kinetic aspects of toner flotation in a mechanical cell with methyl isobutyl carbinol (MIBC) as a frother by using a synthetic toner sample 212+0 μm in a size at variable pH. The effect of the MIBC dosage and pH value on the flotation behavior of the toner has been investigated in terms of toner recovery and fiber recovery. Two kinetic models, the classical first order model and a modified first order model, have been tested and compared. It was established that the achieved optimal parameters of flotation were MIBC 1.5 mg/dm3 and pH from 7 to 12. The obtained results indicate that the toner floats rapidly and that flotation kinetics fits well the modified first order model with a very good correlation coefficient compared to the correlation coefficient for the classical first order model.