JPS6362562B2 - - Google Patents
Info
- Publication number
- JPS6362562B2 JPS6362562B2 JP55034693A JP3469380A JPS6362562B2 JP S6362562 B2 JPS6362562 B2 JP S6362562B2 JP 55034693 A JP55034693 A JP 55034693A JP 3469380 A JP3469380 A JP 3469380A JP S6362562 B2 JPS6362562 B2 JP S6362562B2
- Authority
- JP
- Japan
- Prior art keywords
- hot metal
- mainly
- desulfurization
- treatment
- iron oxide
- 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
- 238000000034 method Methods 0.000 claims description 23
- 239000002184 metal Substances 0.000 claims description 22
- 229910052751 metal Inorganic materials 0.000 claims description 22
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 238000006477 desulfuration reaction Methods 0.000 claims description 18
- 230000023556 desulfurization Effects 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 16
- 239000002893 slag Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 7
- 229910052698 phosphorus Inorganic materials 0.000 claims description 7
- 238000007670 refining Methods 0.000 claims description 7
- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 238000007664 blowing Methods 0.000 claims description 6
- 239000012159 carrier gas Substances 0.000 claims description 6
- 239000011574 phosphorus Substances 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 238000009628 steelmaking Methods 0.000 claims description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 2
- 238000005261 decarburization Methods 0.000 claims 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 18
- 239000000292 calcium oxide Substances 0.000 description 9
- 235000012255 calcium oxide Nutrition 0.000 description 9
- 229910052717 sulfur Inorganic materials 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 5
- 230000004907 flux Effects 0.000 description 5
- 230000001590 oxidative effect Effects 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000011593 sulfur Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 2
- 238000005262 decarbonization Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- -1 mill scale Chemical compound 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- SKZKKFZAGNVIMN-UHFFFAOYSA-N Salicilamide Chemical compound NC(=O)C1=CC=CC=C1O SKZKKFZAGNVIMN-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
-
- 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
- C21C1/00—Refining of pig-iron; Cast iron
-
- 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
-
- 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
- C21C5/285—Plants therefor
-
- 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
- C21C5/56—Manufacture of steel by other methods
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
-
- 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Botany (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Priority Applications (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3469380A JPS56133413A (en) | 1980-03-21 | 1980-03-21 | Steel making method by divided refining |
| AU68239/81A AU6823981A (en) | 1980-03-21 | 1981-03-10 | Multi-stage steel making |
| US06/243,451 US4388112A (en) | 1980-03-21 | 1981-03-13 | Steelmaking process with separate refining steps |
| BE0/204174A BE888007A (fr) | 1980-03-21 | 1981-03-18 | Procede de preparation d'acier a etapes d'affinage separees |
| CA000373463A CA1166018A (fr) | 1980-03-21 | 1981-03-19 | Methode de fabrication de l'acier a etapes distinctes d'affinage |
| DE3110787A DE3110787C2 (de) | 1980-03-21 | 1981-03-19 | Stahl-Herstellungsverfahren |
| FR8105574A FR2478671B1 (fr) | 1980-03-21 | 1981-03-20 | Procede d'elaboration de l'acier par etapes distinctes d'affinage |
| GB8108981A GB2072221B (en) | 1980-03-21 | 1981-03-23 | Steelmaking process with separate refining steps |
| BR8101709A BR8101709A (pt) | 1980-03-21 | 1981-03-23 | Processo para a fabricacao de aco com estagios de refinacao separados |
| US06/362,839 US4411696A (en) | 1980-03-21 | 1982-03-29 | Steelmaking process with separate refining steps |
| US06/504,285 US4457778A (en) | 1980-03-21 | 1983-06-14 | Steelmaking process with separate refining steps |
| AU22238/83A AU549698B2 (en) | 1980-03-21 | 1983-12-08 | Steel making process with separate steps in sequence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3469380A JPS56133413A (en) | 1980-03-21 | 1980-03-21 | Steel making method by divided refining |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56133413A JPS56133413A (en) | 1981-10-19 |
| JPS6362562B2 true JPS6362562B2 (fr) | 1988-12-02 |
Family
ID=12421453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3469380A Granted JPS56133413A (en) | 1980-03-21 | 1980-03-21 | Steel making method by divided refining |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS56133413A (fr) |
| BE (1) | BE888007A (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831012A (ja) * | 1981-08-19 | 1983-02-23 | Nippon Steel Corp | 気体酸素吹込みによる溶銑の優先脱Ｓｉ方法 |
| JPS591609A (ja) * | 1982-06-28 | 1984-01-07 | Nippon Steel Corp | 溶銑の精錬方法 |
| DE3364969D1 (en) * | 1982-09-23 | 1986-09-04 | Nat Res Dev | Removing phosphorous from iron |
| JP2542137Y2 (ja) * | 1990-05-24 | 1997-07-23 | 新技術工営株式会社 | コンクリート型枠 |
| JP6223249B2 (ja) * | 2014-03-19 | 2017-11-01 | 株式会社神戸製鋼所 | 脱珪スラグを再利用する脱珪、脱りん、脱炭方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5237510A (en) * | 1975-09-19 | 1977-03-23 | Nippon Steel Corp | Dephosphorization method of molten cast iron |
| JPS5445611A (en) * | 1977-09-16 | 1979-04-11 | Kobe Steel Ltd | Treating molten metal |
-
1980
- 1980-03-21 JP JP3469380A patent/JPS56133413A/ja active Granted
-
1981
- 1981-03-18 BE BE0/204174A patent/BE888007A/fr not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5237510A (en) * | 1975-09-19 | 1977-03-23 | Nippon Steel Corp | Dephosphorization method of molten cast iron |
| JPS5445611A (en) * | 1977-09-16 | 1979-04-11 | Kobe Steel Ltd | Treating molten metal |
Also Published As
| Publication number | Publication date |
|---|---|
| BE888007A (fr) | 1981-07-16 |
| JPS56133413A (en) | 1981-10-19 |
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