WO2012047041A3 - 탄화철 함유 분환원철 및 그 제조장치 - Google Patents

탄화철 함유 분환원철 및 그 제조장치 Download PDF

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Publication number
WO2012047041A3
WO2012047041A3 PCT/KR2011/007412 KR2011007412W WO2012047041A3 WO 2012047041 A3 WO2012047041 A3 WO 2012047041A3 KR 2011007412 W KR2011007412 W KR 2011007412W WO 2012047041 A3 WO2012047041 A3 WO 2012047041A3
Authority
WO
WIPO (PCT)
Prior art keywords
iron carbide
direct reduced
reduced irons
containing iron
fine
Prior art date
Application number
PCT/KR2011/007412
Other languages
English (en)
French (fr)
Other versions
WO2012047041A2 (ko
Inventor
김현수
이상호
조민영
Original Assignee
주식회사 포스코
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020100098238A external-priority patent/KR101197697B1/ko
Priority claimed from KR1020100098237A external-priority patent/KR101197696B1/ko
Application filed by 주식회사 포스코 filed Critical 주식회사 포스코
Priority to CN201180048791.XA priority Critical patent/CN103154281B/zh
Publication of WO2012047041A2 publication Critical patent/WO2012047041A2/ko
Publication of WO2012047041A3 publication Critical patent/WO2012047041A3/ko

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0073—Selection or treatment of the reducing gases
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/10—Reduction of greenhouse gas [GHG] emissions
    • Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen

Abstract

탄화철 함유 분환원철 및 그 제조방법이 개시된다. 본 발명에 의한 탄화철 함유 분환원철은 난환원성의 극미분광을 환원로에서 환원 후 탄화로에서 탄화 반응에 의해 표면에 탄화철을 형성함으로써 20 내지 30 중량 퍼센트의 탄화철을 함유한다. 본 발명에 의한 탄화철 함유 분환원철 제조장치는 환원가스 내에 포함된 황화수소를 탄화로와 환원로에 선택적으로 사용함으로써 분철광석을 효과적으로 환원 및 탄화시킬 수 있다. 본 발명에 의한 탄화철 함유 분환원철을 적용함으로써 분환원철 내에 탄소함량을 증진시킴으로써 용융성을 향상시킬 수 있으며 환원 및 용융 속도 증가로 인한 연료비를 저감할 수 있다.
PCT/KR2011/007412 2010-10-08 2011-10-06 탄화철 함유 분환원철 및 그 제조장치 WO2012047041A2 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201180048791.XA CN103154281B (zh) 2010-10-08 2011-10-06 含有碳化铁的粉末还原铁及其制造装置

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1020100098238A KR101197697B1 (ko) 2010-10-08 2010-10-08 탄화철 함유 분환원철 제조장치
KR10-2010-0098238 2010-10-08
KR1020100098237A KR101197696B1 (ko) 2010-10-08 2010-10-08 탄화철 함유 분환원철
KR10-2010-0098237 2010-10-08

Publications (2)

Publication Number Publication Date
WO2012047041A2 WO2012047041A2 (ko) 2012-04-12
WO2012047041A3 true WO2012047041A3 (ko) 2012-05-31

Family

ID=45928237

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2011/007412 WO2012047041A2 (ko) 2010-10-08 2011-10-06 탄화철 함유 분환원철 및 그 제조장치

Country Status (2)

Country Link
CN (1) CN103154281B (ko)
WO (1) WO2012047041A2 (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107058720B (zh) * 2017-04-28 2018-12-14 苏州大学 一种利用低品位复杂铁矿制备碳化铁的方法
KR102176345B1 (ko) * 2018-10-17 2020-11-09 주식회사 포스코 이산화탄소 배출 저감형 용철 제조장치 및 그 제조방법

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10291816A (ja) * 1997-04-15 1998-11-04 Nippon Steel Corp 炭化鉄の製造方法
KR20020049889A (ko) * 2000-12-20 2002-06-26 이구택 일반탄 및 분철광석을 이용한 용철제조설비에 있어서부생슬러지 재활용 장치
KR20030052369A (ko) * 2001-12-21 2003-06-27 주식회사 포스코 탄화철의 제조방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10291816A (ja) * 1997-04-15 1998-11-04 Nippon Steel Corp 炭化鉄の製造方法
KR20020049889A (ko) * 2000-12-20 2002-06-26 이구택 일반탄 및 분철광석을 이용한 용철제조설비에 있어서부생슬러지 재활용 장치
KR20030052369A (ko) * 2001-12-21 2003-06-27 주식회사 포스코 탄화철의 제조방법

Also Published As

Publication number Publication date
WO2012047041A2 (ko) 2012-04-12
CN103154281A (zh) 2013-06-12
CN103154281B (zh) 2015-09-09

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