Evolution and modifiion of physicochemical properties of coal .
WEBMar 1, 2024 · Fig. 7 illustrated the XRD pattern and graphitization degree of coalcokeslag powder with distinct particle sizes in the tuyere 's nest area. The predominant constituents within the coalcokeslag powder in the tuyere 's nest area included C (carbon), Ca 2 MgSi 2 O 7, Ca 2 Al 2 SiO 7, MgAl 2 O 4, and Al 2 O 3.