JP4998677B2 - 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
- Publication number
- JP4998677B2 JP4998677B2 JP2006090472A JP2006090472A JP4998677B2 JP 4998677 B2 JP4998677 B2 JP 4998677B2 JP 2006090472 A JP2006090472 A JP 2006090472A JP 2006090472 A JP2006090472 A JP 2006090472A JP 4998677 B2 JP4998677 B2 JP 4998677B2
- Authority
- JP
- Japan
- Prior art keywords
- desulfurization
- slag
- hot metal
- cao
- desulfurized
- 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.)
- Expired - Fee Related
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Classifications
-
- 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)
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、スラグ回収容器に回収した脱硫スラグを定量分析し、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%以下である場合に限り、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 |
---|---|---|---|
JP2006090472A JP4998677B2 (ja) | 2006-03-29 | 2006-03-29 | 脱硫スラグの再利用方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
---|---|
JP2007262511A JP2007262511A (ja) | 2007-10-11 |
JP4998677B2 true JP4998677B2 (ja) | 2012-08-15 |
Family
ID=38635769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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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 |
Country Status (1)
Country | Link |
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JP (1) | JP4998677B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5884186B2 (ja) * | 2013-04-08 | 2016-03-15 | 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 |
JP6237293B2 (ja) * | 2014-02-06 | 2017-11-29 | 新日鐵住金株式会社 | 溶銑の脱硫処理方法 |
BR112015009813B1 (pt) * | 2015-04-27 | 2018-01-23 | Jfe Steel Corporation | Método para reciclar escória de dessulfuração |
Family Cites Families (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 |
JP4546661B2 (ja) * | 2001-04-10 | 2010-09-15 | 新日本製鐵株式会社 | 脱硫スラグを再利用した溶銑脱硫剤 |
JP3960164B2 (ja) * | 2002-08-16 | 2007-08-15 | Jfeスチール株式会社 | 脱硫スラグの再利用方法 |
JP3974863B2 (ja) * | 2003-02-17 | 2007-09-12 | 新日本製鐵株式会社 | スラグの再利用法 |
JP4933032B2 (ja) * | 2004-02-27 | 2012-05-16 | Jfeスチール株式会社 | 溶銑の脱硫方法 |
-
2006
- 2006-03-29 JP JP2006090472A patent/JP4998677B2/ja not_active Expired - Fee Related
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JP2007262511A (ja) | 2007-10-11 |
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