97/04421 Reduction of toxic trace elements in coal by advanced cleaning: Smit, F. J. Proc. Annu. Int. Pittsburgh Coal Conf., 1996, 13, (2), 879–884

Abstract

The residual concentrations of 12 toxic trace-element impurities in five coals were determined after advanced cleaning by column flotation and by selective agglomeration (with heptane as the bridging liquid) in continuous bench-scale circuits. The reduction in concentration from the amount in the ROM parent coals and the amount in the washed test coals was also determined, on a heating value basis, for each of the trace elements.