Previous Article Next Article Table of Contents Minerals Engineering, Vol.20, No.5, 428-434, 2007 DOI10.1016/j.mineng.2006.11.006 Export Citation Semi-automated petrographic assessment of coal by coal grain analysis O'Brien G, Jenkins B, Ofori P, Ferguson K Keywords:coal;froth flotation;liberation analysis;process optimisation Please enable JavaScript to view the comments powered by Disqus.