SciELO - Scientific Electronic Library Online

 
vol.113 issue11Petrological characterization of coal: an evolving scienceTruck cycle and delay automated data collection system in surface coal mining author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Journal of the Southern African Institute of Mining and Metallurgy

On-line version ISSN 2411-9717

Abstract

LI, L.; LU, X.; QIU, J.  and  LIU, D.. Effect of microemulsified collector on froth flotation of coal. J. S. Afr. Inst. Min. Metall. [online]. 2013, vol.113, n.11, pp. 877-880. ISSN 2411-9717.

The performance of microemulsified diesel and conventional diesel collectors in coal flotation was compared by flotation indicators, including combustible recovery, ash content of the clean coal, and the flotation index. An efficient separation with lower dosage was obtained using the microemulsified diesel collector. Under optimum separation conditions, the microemulsion consumption was 100 g/t less compared with diesel. The saving in diesel consumption using the microemulsion reached about 70%, disregarding the consumption of the surfactant and cosurfactant. Frothing tests showed that the frother dosage was decreased by using the microemulsion collector, because of the surfactant and cosurfactant added during preparation. The microemulsified diesel collector is superior to the conventional diesel collector in terms of diesel consumption and separation efficiency, but the selectivity requires further improvement.

Keywords : froth flotation; microemulsified collector; coal.

        · text in English     · English ( pdf )

 

Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License