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 bird's nest area. The predominant constituents within the coalcokeslag powder in the tuyere bird'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.