Chemical Composition of Coal Ash of "Progress" Mine ("TOREZANTRATSIT" SHC) Chemical Composition of Ash in h 8 Seam

Sio, Fe, Al, Fe, Al, Sio, Cao So, Sio, +al, Mgo+fe, Fe, Al
unpublished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.
fatcat:w6wyci2cyjhb3ah4smf53aw74e