焦(jiao)(jiao)炭用(yong)(yong)途焦(jiao)(jiao)炭主要(yao)用(yong)(yong)于高(gao)爐煉鐵(tie)(tie)和(he)用(yong)(yong)于銅、鉛、鋅、鈦、銻、汞(gong)等有(you)色金(jin)(jin)屬的鼓風(feng)爐冶煉，起還原劑、發熱(re)劑和(he)料柱骨架作用(yong)(yong)。煉鐵(tie)(tie)高(gao)爐采用(yong)(yong)焦(jiao)(jiao)炭代(dai)替木炭，為(wei)現代(dai)高(gao)爐的大(da)(da)型化(hua)奠定(ding)了基(ji)礎，是(shi)冶金(jin)(jin)史(shi)上(shang)的一(yi)個重大(da)(da)里程碑。為(wei)使(shi)高(gao)爐操作達到較好的技術經濟指標(biao)，冶煉用(yong)(yong)焦(jiao)(jiao)炭（冶金(jin)(jin)焦(jiao)(jiao)）必須具有(you)適(shi)當(dang)的化(hua)學(xue)性質(zhi)和(he)物理性質(zhi)，包(bao)括冶煉過程中的熱(re)態(tai)性質(zhi)。焦(jiao)(jiao)炭除大(da)(da)量(liang)用(yong)(yong)于煉鐵(tie)(tie)和(he)有(you)色金(jin)(jin)屬冶煉（冶金(jin)(jin)焦(jiao)(jiao)）外，還用(yong)(yong)于鑄造、化(hua)工、電(dian)石和(he)鐵(tie)(tie)合金(jin)(jin)，其質(zhi)量(liang)要(yao)求有(you)所不同。如(ru)鑄造用(yong)(yong)焦(jiao)(jiao)，一(yi)般(ban)要(yao)求粒度(du)(du)大(da)(da)、氣(qi)孔率低、固定(ding)碳高(gao)和(he)硫分低；化(hua)工氣(qi)化(hua)用(yong)(yong)焦(jiao)(jiao)，對(dui)強(qiang)度(du)(du)要(yao)求不嚴(yan)，但要(yao)求反應性好，灰熔點較高(gao)；電(dian)石生產用(yong)(yong)焦(jiao)(jiao)要(yao)求盡量(liang)提高(gao)固定(ding)碳含量(liang)。