I-Calcined Anthracite coal, eyona nto iphambili kuyo yi-anthracite ekumgangatho ophezulu, enomlotha ophantsi kunye nesulfure ephantsi. I-Gas Calcined Anthracite Coal, i-Carbon additive ineendlela ezimbini eziphambili zokusetyenziswa, oko kukuthi, i-fuel kunye ne-additive. Xa isetyenziswa njenge-carbon additive ye-steel-smelting, kunye ne-casting. Ngaphandle koko, isetyenziswa kakhulu ekuhluzeni amanzi nasekunyangweni kwamanzi ngenxa yeempawu zayo ezilungileyo zokucoca. I-Anthracite coal lilahle elikumgangatho ophezulu eliqulathe amaqhekeza amalahle aqinileyo, ahlala ixesha elide afika ngobukhulu obahlukeneyo. I-Anthracite isetyenziswa kunye nesanti ye-silica (inkqubo ye-dual media) okanye nesanti ye-silica kunye ne-filter rock (inkqubo ye-mixed media) okanye ngokwayo (inkqubo ye-mono media).
