KR890003964A - 개량 철강슬래그 및 그 제조방법 - Google Patents

개량 철강슬래그 및 그 제조방법 Download PDF

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Publication number
KR890003964A
KR890003964A KR1019880009962A KR880009962A KR890003964A KR 890003964 A KR890003964 A KR 890003964A KR 1019880009962 A KR1019880009962 A KR 1019880009962A KR 880009962 A KR880009962 A KR 880009962A KR 890003964 A KR890003964 A KR 890003964A
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KR
South Korea
Prior art keywords
slag
improved steel
steel slag
boron
weight
Prior art date
Application number
KR1019880009962A
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English (en)
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KR910008139B1 (ko
Inventor
고조 소노베
다까시 후꾸자와
고스께 다께우찌
다쯔시 다마따
히로시 후꾸오까
구니오 히사마쯔
마고또 가따무라
Original Assignee
다나히시 간이찌
닛뽕 가가꾸 고오교 가부시기가이샤
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Application filed by 다나히시 간이찌, 닛뽕 가가꾸 고오교 가부시기가이샤 filed Critical 다나히시 간이찌
Publication of KR890003964A publication Critical patent/KR890003964A/ko
Application granted granted Critical
Publication of KR910008139B1 publication Critical patent/KR910008139B1/ko

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B3/00—General features in the manufacture of pig-iron
    • C21B3/04—Recovery of by-products, e.g. slag
    • C21B3/06—Treatment of liquid slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B5/00—Making pig-iron in the blast furnace
    • C21B5/04—Making slag of special composition
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B2400/00—Treatment of slags originating from iron or steel processes
    • C21B2400/02—Physical or chemical treatment of slags
    • C21B2400/022—Methods of cooling or quenching molten slag
    • C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies

Abstract

내용 없음

Description

개량 철강슬래그 및 그 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (9)

  1. 철강야금의 시기에 부산물인 철강슬래그에 있어서, 상기 슬래그는 B2O3의 형으로 적어도 0.15중량%의 붕소를 포함하고, 용융슬래그의 냉각과정에서 분화에 대한, 우수와 상기 슬래그와 접촉의 시기에 황탁수의 발생에 대한 저항을 가지는 개량된 철강슬래그.
  2. 제1항에 있어서, 상기 슬래그는 고로슬래그, 전로슬래그 또는 제강로슬래그의 어느 하나인 개량된 철강슬래그.
  3. 제1항 또는 제2항에 있어서, 상기 슬래그는 1.5와 3.5사이의 범위에 있는 염기도 CaO/SiO2(중량비)를 가지는 개량된 철강슬래그.
  4. 제1항 또는 제2항에 있어서, 상기 슬래그는 B2O3의 형으로서 0.3-1.5중량%의 붕소성분을 포함하는 개량된 철강슬래그.
  5. 고로, 전로 또는 제강로의 조업동안 철강야금의 시기에 발생하는 부산물인 용융상태의 슬래그에 소결 또는 유리화된 B2O3형으로 적어도 10중량%의 붕소를 함유하고 있는 열처리재를 첨가하고, 그후 상기 슬래그를 냉각하는 개량된 철강슬래그의 제조방법.
  6. 제5항에 있어서, 붕소를 함유하는 상기 열처리재는 상기 용융슬래그에 대하여 B2O3형으로 적어도 0.15중량%를 첨가하는 개량된 철강슬래그의 제조방법.
  7. 제5항 또는 제6항에 있어서, 붕소를 함유하는 상기 열처리재는 출탕 또는 용융된 철강슬래그를 제거의 시기에 상기 용융 슬래그에 첨가하는 개량된 철강슬래그의 제조방법.
  8. 제5항 또는 제6항에 있어서, 붕소를 함유하는 상기 열처리재는 최대 1100℃의 연화점 또는 융점을 가지는 개량된 철강슬래그의 제조방법.
  9. 제5항 또는 제6항에 있어서, 붕소를 함유하는 상기 열처리재는 0.1mm에서 히스트와 같은 크기인 귤렛까지의 크기로 분쇄된 조입분쇄재료인 개량된 철강슬래그의 제조방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019880009962A 1987-08-04 1988-08-04 개량 철강슬래그 및 그 제조방법 KR910008139B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP19371987A JPS6437444A (en) 1987-08-04 1987-08-04 Modified iron/steel slag and production thereof
JP62-193719 1987-08-04

Publications (2)

Publication Number Publication Date
KR890003964A true KR890003964A (ko) 1989-04-19
KR910008139B1 KR910008139B1 (ko) 1991-10-10

Family

ID=16312655

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880009962A KR910008139B1 (ko) 1987-08-04 1988-08-04 개량 철강슬래그 및 그 제조방법

Country Status (3)

Country Link
US (1) US4882303A (ko)
JP (1) JPS6437444A (ko)
KR (1) KR910008139B1 (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5187126A (en) * 1988-07-29 1993-02-16 Nippon Chemical Industrial Co., Ltd. Slag treatment material
USRE34912E (en) * 1987-08-04 1995-04-18 Nippon Chemical Industrial Co., Ltd. Slag treatment material
GB2383793B (en) * 2002-01-04 2003-11-19 Morgan Crucible Co Saline soluble inorganic fibres
JP5953919B2 (ja) * 2012-05-10 2016-07-20 Ｊｆｅスチール株式会社 ステンレス鋼スラグの冷却方法
CN110756759B (zh) * 2018-07-28 2022-03-29 泰安特夫德新材料科技有限公司 利用钢渣离心铸造复合钢管的方法和复合钢管

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5343690A (en) * 1976-10-02 1978-04-19 Sakai Chem Ind Co Ltd Treating method for slag
JPS61111947A (ja) * 1984-11-01 1986-05-30 川崎製鉄株式会社 製鋼スラグの改質方法
JPH113640A (ja) * 1997-06-10 1999-01-06 Koshin:Kk 傾斜検出スイッチ

Also Published As

Publication number Publication date
JPS6437444A (en) 1989-02-08
US4882303A (en) 1989-11-21
KR910008139B1 (ko) 1991-10-10

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