JPS6214603B2 - - Google Patents
Info
- Publication number
- JPS6214603B2 JPS6214603B2 JP9806379A JP9806379A JPS6214603B2 JP S6214603 B2 JPS6214603 B2 JP S6214603B2 JP 9806379 A JP9806379 A JP 9806379A JP 9806379 A JP9806379 A JP 9806379A JP S6214603 B2 JPS6214603 B2 JP S6214603B2
- Authority
- JP
- Japan
- Prior art keywords
- slag
- steel
- blowing
- phosphorus
- oxygen
- 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
Links
- 239000002893 slag Substances 0.000 claims description 57
- 229910000831 Steel Inorganic materials 0.000 claims description 53
- 239000010959 steel Substances 0.000 claims description 53
- 238000007664 blowing Methods 0.000 claims description 44
- 229910052698 phosphorus Inorganic materials 0.000 claims description 28
- 239000011574 phosphorus Substances 0.000 claims description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 20
- 229910052760 oxygen Inorganic materials 0.000 claims description 20
- 239000001301 oxygen Substances 0.000 claims description 20
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 description 24
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 21
- 238000006243 chemical reaction Methods 0.000 description 18
- 239000000292 calcium oxide Substances 0.000 description 11
- 238000003756 stirring Methods 0.000 description 11
- 235000012255 calcium oxide Nutrition 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 7
- 235000011941 Tilia x europaea Nutrition 0.000 description 7
- 239000004571 lime Substances 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000001965 increasing effect Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000007670 refining Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910000805 Pig iron Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010436 fluorite Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- WETINTNJFLGREW-UHFFFAOYSA-N calcium;iron;tetrahydrate Chemical compound O.O.O.O.[Ca].[Fe].[Fe] WETINTNJFLGREW-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 238000009489 vacuum treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/32—Blowing from above
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9806379A JPS5623213A (en) | 1979-08-02 | 1979-08-02 | Melting method of low phosphorus steel in oxygen top blowing steel making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9806379A JPS5623213A (en) | 1979-08-02 | 1979-08-02 | Melting method of low phosphorus steel in oxygen top blowing steel making method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5623213A JPS5623213A (en) | 1981-03-05 |
| JPS6214603B2 true JPS6214603B2 (de) | 1987-04-03 |
Family
ID=14209860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9806379A Granted JPS5623213A (en) | 1979-08-02 | 1979-08-02 | Melting method of low phosphorus steel in oxygen top blowing steel making method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5623213A (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58167706A (ja) * | 1982-03-29 | 1983-10-04 | Nippon Kokan Kk <Nkk> | 上下吹き転炉による低ｐ鋼の溶製方法 |
| CN103555878B (zh) * | 2013-11-25 | 2015-02-04 | 武钢集团昆明钢铁股份有限公司 | 一种安全高效的低硅铁水吹炼工艺 |
-
1979
- 1979-08-02 JP JP9806379A patent/JPS5623213A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5623213A (en) | 1981-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0770626A (ja) | 転炉製鋼法 | |
| US4456477A (en) | Production of ultra-low phosphorus steel | |
| JPH11158526A (ja) | 高ｐスラグの製造方法 | |
| JPS63195209A (ja) | 製鋼方法 | |
| JPH0243803B2 (de) | ||
| JPS6214603B2 (de) | ||
| JPH11323420A (ja) | 溶銑予備処理方法 | |
| US4525209A (en) | Process for producing low P chromium-containing steel | |
| JPH0477046B2 (de) | ||
| JPS62109913A (ja) | 溶銑の脱珪・脱燐方法 | |
| JPH01147011A (ja) | 製鋼法 | |
| US4065297A (en) | Process for dephosphorizing molten pig iron | |
| JPH0557327B2 (de) | ||
| JPS5847450B2 (ja) | 酸素上吹製鋼法における脱燐促進方法 | |
| JPS6121285B2 (de) | ||
| JP2842231B2 (ja) | 底吹きガス撹拌による溶銑の予備処理方法 | |
| JPH0841519A (ja) | 製鋼方法 | |
| JP2755027B2 (ja) | 製鋼方法 | |
| JPH0214404B2 (de) | ||
| JPS61104014A (ja) | 酸化精錬炉におけるＭｎ鉱石高効率還元法 | |
| JPH024938A (ja) | 中炭素および低炭素フェロマンガンの製造方法 | |
| JPH01142009A (ja) | 製鋼方法 | |
| JPH0813016A (ja) | 溶銑の脱燐・脱硫法 | |
| JPH03122210A (ja) | 複合転炉を用いた２段向流精錬製鋼法 | |
| JPS5854171B2 (ja) | 高クロム鋼の精錬方法 |