Grindability Index Thehardgrove

2009-8-27rankrindability inthevitrinite-rich coalsof europe andamericareachesamaximum inthe medium-tolow-rankbituminous ranges,leese coalsbecomemucheasiertogrindprogressively higherandlowerranks, andwithincreasing in-ertinitecontent,thecoalsbecomemoredifficultto grind1,4rganiccomposition recentresearchhasshown thatgrindability.

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