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NTIS 바로가기資源리싸이클링 = Journal of the Korean Institute of Resources Recycling, v.29 no.1, 2020년, pp.3 - 16
This work provides an overview of the steel production process, pretreatment and tramp elements of scraps and recycling technology of dust generated from steelmaking process. Steel is the most common metal used by mankind, with the world production of crude steel in 2018 exceeding 1.8 billion tonnes...
핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
철강의 기원은 어떻게 추정되는가? | 이러한 철강의 기원은 불분명하지만, 소아시아지역에서 B.C. 2,100년경의 철 유적지가 발견되어 약 4,100년 전부터 철을 사용하여 온 것으로 추정하고 있다. B. | |
인류가 1900년부터 생산한 물질 중 철강의 2018년 생산량은 어느정도인가? | 인류가 1900년부터 생산한 물질 가운데 가장 많이 생산한 것은 시멘트로서 2010년에만 약 35억 톤을 생산하였다6). 그 다음으로 대량 생산한 것이 철강이며, 2018년에는 18억 톤 이상을 생산하였다. Fig. | |
철은 어떠한 금속인가? | 철(鐵, iron, Fe)은 구조용 금속으로는 알루미늄(Al) 다음으로 지구상에 가장 많이 존재하는 금속이면서, 인류가 가장 많이 사용하는 금속이다. 철은 차량, 선박, 항공기, 주택, 각종 생활용품에 이르기까지 많은 분야에서 사용되고 있으므로 철이 없는 세상은 상상하기 힘들 정도로 중요한 금속이다. |
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