摘要
Fulfill the screen test and float-and-sink analysis for high sulfur coal gangue from a Guizhou coal mine, analyzed the washability of its tail coal. Seen from the results： most of sulfur in sample is pyrite, the sulfur content of different particle classification shall be reduced with the decreasing of size and specific gravity, most of sulfur distributed in the coal particles with large-size and high specific gravity. Part of sulfur may be eliminated through special gravity separation, however, most of inorganic sulfur should be removed with the combination of floatation process.
