焦(jiao)(jiao)(jiao)(jiao)炭(tan)用(yong)(yong)(yong)途焦(jiao)(jiao)(jiao)(jiao)炭(tan)主(zhu)要用(yong)(yong)(yong)于(yu)高(gao)(gao)爐煉(lian)鐵和用(yong)(yong)(yong)于(yu)銅、鉛、鋅、鈦(tai)、銻、汞等有色金(jin)屬的(de)鼓風爐冶(ye)煉(lian)，起還原劑、發(fa)熱劑和料柱(zhu)骨(gu)架作用(yong)(yong)(yong)。煉(lian)鐵高(gao)(gao)爐采用(yong)(yong)(yong)焦(jiao)(jiao)(jiao)(jiao)炭(tan)代(dai)替木炭(tan)，為現代(dai)高(gao)(gao)爐的(de)大型化奠定了基礎，是冶(ye)金(jin)史上(shang)的(de)一個重大里程碑。為使高(gao)(gao)爐操作達到較好的(de)技術經濟指標，冶(ye)煉(lian)用(yong)(yong)(yong)焦(jiao)(jiao)(jiao)(jiao)炭(tan)（冶(ye)金(jin)焦(jiao)(jiao)(jiao)(jiao)）必須具有適當的(de)化學性質和物(wu)理性質，包括冶(ye)煉(lian)過(guo)程中的(de)熱態性質。焦(jiao)(jiao)(jiao)(jiao)炭(tan)除大量用(yong)(yong)(yong)于(yu)煉(lian)鐵和有色金(jin)屬冶(ye)煉(lian)（冶(ye)金(jin)焦(jiao)(jiao)(jiao)(jiao)）外，還用(yong)(yong)(yong)于(yu)鑄(zhu)造、化工、電石和鐵合(he)金(jin)，其(qi)質量要求(qiu)有所不(bu)同。如鑄(zhu)造用(yong)(yong)(yong)焦(jiao)(jiao)(jiao)(jiao)，一般(ban)要求(qiu)粒度(du)大、氣孔率低、固定碳(tan)高(gao)(gao)和硫分(fen)低；化工氣化用(yong)(yong)(yong)焦(jiao)(jiao)(jiao)(jiao)，對強度(du)要求(qiu)不(bu)嚴，但要求(qiu)反(fan)應性好，灰熔點較高(gao)(gao)；電石生(sheng)產用(yong)(yong)(yong)焦(jiao)(jiao)(jiao)(jiao)要求(qiu)盡(jin)量提高(gao)(gao)固定碳(tan)含量。