JP2007262511A - 脱硫スラグの再利用方法 - Google Patents
脱硫スラグの再利用方法 Download PDFInfo
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- JP2007262511A JP2007262511A JP2006090472A JP2006090472A JP2007262511A JP 2007262511 A JP2007262511 A JP 2007262511A JP 2006090472 A JP2006090472 A JP 2006090472A JP 2006090472 A JP2006090472 A JP 2006090472A JP 2007262511 A JP2007262511 A JP 2007262511A
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- JP
- Japan
- Prior art keywords
- desulfurization
- slag
- hot metal
- cao
- agent
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 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
- Y02P10/20—Recycling
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
【解決手段】 溶銑の脱硫処理で発生したCaO系の脱硫スラグを脱硫剤の一部として別の溶銑の脱硫処理で再使用するに当たり、スラグ組成のCaO/SiO2 が質量比で2.5以上、Al2 O3含有量が10質量%以下、硫黄含有量が5.0質量%以下である脱硫スラグを脱硫剤として再使用する。
【選択図】 なし
Description
Claims (3)
- 溶銑の脱硫処理で発生したCaO系の脱硫スラグを脱硫剤の一部として別の溶銑の脱硫処理で再使用するに当たり、スラグ組成のCaO/SiO2 が質量比で2.5以上、Al2 O3含有量が10質量%以下、硫黄含有量が5.0質量%以下である脱硫スラグを脱硫剤として再使用することを特徴とする、脱硫スラグの再利用方法。
- 前記脱硫スラグの前記脱硫剤中の配合比率は50質量%以上であることを特徴とする、請求項1に記載の脱硫スラグの再利用方法。
- 前記脱硫スラグを熱間状態で再使用することを特徴とする、請求項1または請求項2に記載の脱硫スラグの再利用方法。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2006090472A JP4998677B2 (ja) | 2006-03-29 | 2006-03-29 | 脱硫スラグの再利用方法 |
Applications Claiming Priority (1)
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JP2006090472A JP4998677B2 (ja) | 2006-03-29 | 2006-03-29 | 脱硫スラグの再利用方法 |
Publications (2)
Publication Number | Publication Date |
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JP2007262511A true JP2007262511A (ja) | 2007-10-11 |
JP4998677B2 JP4998677B2 (ja) | 2012-08-15 |
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JP2006090472A Expired - Fee Related JP4998677B2 (ja) | 2006-03-29 | 2006-03-29 | 脱硫スラグの再利用方法 |
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JP (1) | JP4998677B2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014201805A (ja) * | 2013-04-08 | 2014-10-27 | Jfeスチール株式会社 | 脱硫スラグの再生処理方法及び脱硫スラグの利材化方法 |
JP2015147971A (ja) * | 2014-02-06 | 2015-08-20 | 新日鐵住金株式会社 | 溶銑の脱硫処理方法 |
JP5884952B1 (ja) * | 2015-04-27 | 2016-03-15 | Jfeスチール株式会社 | 脱硫スラグの再使用方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5228418A (en) * | 1975-08-29 | 1977-03-03 | Nippon Steel Corp | Oxygen steel making process using low p and s pig iron as raw material |
JP2000313911A (ja) * | 1999-04-28 | 2000-11-14 | Nippon Steel Corp | 溶銑の脱硫剤 |
JP2002309308A (ja) * | 2001-04-10 | 2002-10-23 | Nippon Steel Corp | 脱硫スラグを再利用した溶銑脱硫剤 |
JP2004076088A (ja) * | 2002-08-16 | 2004-03-11 | Jfe Steel Kk | 脱硫スラグの再利用方法 |
JP2004244706A (ja) * | 2003-02-17 | 2004-09-02 | Nippon Steel Corp | スラグの再利用法 |
JP2005240145A (ja) * | 2004-02-27 | 2005-09-08 | Jfe Steel Kk | 溶銑の脱硫方法 |
-
2006
- 2006-03-29 JP JP2006090472A patent/JP4998677B2/ja not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5228418A (en) * | 1975-08-29 | 1977-03-03 | Nippon Steel Corp | Oxygen steel making process using low p and s pig iron as raw material |
JP2000313911A (ja) * | 1999-04-28 | 2000-11-14 | Nippon Steel Corp | 溶銑の脱硫剤 |
JP2002309308A (ja) * | 2001-04-10 | 2002-10-23 | Nippon Steel Corp | 脱硫スラグを再利用した溶銑脱硫剤 |
JP2004076088A (ja) * | 2002-08-16 | 2004-03-11 | Jfe Steel Kk | 脱硫スラグの再利用方法 |
JP2004244706A (ja) * | 2003-02-17 | 2004-09-02 | Nippon Steel Corp | スラグの再利用法 |
JP2005240145A (ja) * | 2004-02-27 | 2005-09-08 | Jfe Steel Kk | 溶銑の脱硫方法 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014201805A (ja) * | 2013-04-08 | 2014-10-27 | Jfeスチール株式会社 | 脱硫スラグの再生処理方法及び脱硫スラグの利材化方法 |
JP2015147971A (ja) * | 2014-02-06 | 2015-08-20 | 新日鐵住金株式会社 | 溶銑の脱硫処理方法 |
JP5884952B1 (ja) * | 2015-04-27 | 2016-03-15 | Jfeスチール株式会社 | 脱硫スラグの再使用方法 |
WO2016174696A1 (ja) * | 2015-04-27 | 2016-11-03 | Jfeスチール株式会社 | 脱硫スラグの再使用方法 |
TWI595096B (zh) * | 2015-04-27 | 2017-08-11 | 杰富意鋼鐵股份有限公司 | 脫硫熔渣的再使用方法 |
KR20170130564A (ko) | 2015-04-27 | 2017-11-28 | 제이에프이 스틸 가부시키가이샤 | 탈황 슬래그의 재사용 방법 |
CN107532224A (zh) * | 2015-04-27 | 2018-01-02 | 杰富意钢铁株式会社 | 脱硫渣的再使用方法 |
KR102073231B1 (ko) | 2015-04-27 | 2020-02-04 | 제이에프이 스틸 가부시키가이샤 | 탈황 슬래그의 재사용 방법 |
Also Published As
Publication number | Publication date |
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JP4998677B2 (ja) | 2012-08-15 |
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