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Chemical Composition of Coal Ash of "Progress" Mine ("TOREZANTRATSIT" SHC) Chemical Composition of Ash in h 8 Seam
unpublished
are prevailing oxides within coal ash. Total oxide content (Fe 2 O 3 + Al 2 O 3 + CaO) is 4.11 within h 8 seam coal, and 8.61 within h 7 one. Against aluminosilicate oxides to basic ones SiO 2 + Al 2 O 3 /MgO + Fe 2 O 3 + CaO (it is 1.35 on h 8 seam, and 3.74 on h 7 one) the ash is acidic. Ash calcium is 6.73 on h 8 seam, and 3.27 on h 7 seam.
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