焦(jiao)(jiao)(jiao)(jiao)炭(tan)用(yong)(yong)(yong)途焦(jiao)(jiao)(jiao)(jiao)炭(tan)主要(yao)(yao)用(yong)(yong)(yong)于(yu)高(gao)爐(lu)(lu)煉鐵和(he)用(yong)(yong)(yong)于(yu)銅、鉛、鋅、鈦、銻、汞等有(you)色金(jin)(jin)屬的(de)(de)鼓風爐(lu)(lu)冶(ye)煉，起(qi)還原劑、發熱(re)劑和(he)料(liao)柱骨架(jia)作用(yong)(yong)(yong)。煉鐵高(gao)爐(lu)(lu)采(cai)用(yong)(yong)(yong)焦(jiao)(jiao)(jiao)(jiao)炭(tan)代替木炭(tan)，為現代高(gao)爐(lu)(lu)的(de)(de)大型(xing)化(hua)(hua)(hua)奠(dian)定了(le)基礎，是冶(ye)金(jin)(jin)史上的(de)(de)一個重大里程(cheng)碑(bei)。為使(shi)高(gao)爐(lu)(lu)操作達到較好(hao)的(de)(de)技術經(jing)濟指(zhi)標，冶(ye)煉用(yong)(yong)(yong)焦(jiao)(jiao)(jiao)(jiao)炭(tan)（冶(ye)金(jin)(jin)焦(jiao)(jiao)(jiao)(jiao)）必(bi)須具有(you)適當的(de)(de)化(hua)(hua)(hua)學性質(zhi)和(he)物理性質(zhi)，包括冶(ye)煉過(guo)程(cheng)中的(de)(de)熱(re)態性質(zhi)。焦(jiao)(jiao)(jiao)(jiao)炭(tan)除大量(liang)用(yong)(yong)(yong)于(yu)煉鐵和(he)有(you)色金(jin)(jin)屬冶(ye)煉（冶(ye)金(jin)(jin)焦(jiao)(jiao)(jiao)(jiao)）外(wai)，還用(yong)(yong)(yong)于(yu)鑄造、化(hua)(hua)(hua)工(gong)(gong)、電(dian)石(shi)和(he)鐵合金(jin)(jin)，其質(zhi)量(liang)要(yao)(yao)求(qiu)有(you)所不同。如鑄造用(yong)(yong)(yong)焦(jiao)(jiao)(jiao)(jiao)，一般要(yao)(yao)求(qiu)粒度大、氣孔率(lv)低、固(gu)定碳高(gao)和(he)硫分低；化(hua)(hua)(hua)工(gong)(gong)氣化(hua)(hua)(hua)用(yong)(yong)(yong)焦(jiao)(jiao)(jiao)(jiao)，對強度要(yao)(yao)求(qiu)不嚴，但要(yao)(yao)求(qiu)反應性好(hao)，灰熔(rong)點較高(gao)；電(dian)石(shi)生產用(yong)(yong)(yong)焦(jiao)(jiao)(jiao)(jiao)要(yao)(yao)求(qiu)盡量(liang)提高(gao)固(gu)定碳含量(liang)。