JPS6123243B2 - - Google Patents
Info
- Publication number
- JPS6123243B2 JPS6123243B2 JP56094388A JP9438881A JPS6123243B2 JP S6123243 B2 JPS6123243 B2 JP S6123243B2 JP 56094388 A JP56094388 A JP 56094388A JP 9438881 A JP9438881 A JP 9438881A JP S6123243 B2 JPS6123243 B2 JP S6123243B2
- Authority
- JP
- Japan
- Prior art keywords
- hot metal
- flux
- dephosphorization
- slag
- cao
- 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
- 229910052751 metal Inorganic materials 0.000 claims description 82
- 239000002184 metal Substances 0.000 claims description 82
- 230000004907 flux Effects 0.000 claims description 43
- 239000002893 slag Substances 0.000 claims description 41
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 34
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 26
- 229910052760 oxygen Inorganic materials 0.000 claims description 26
- 239000001301 oxygen Substances 0.000 claims description 26
- 238000006243 chemical reaction Methods 0.000 claims description 22
- 238000007664 blowing Methods 0.000 claims description 14
- 239000012159 carrier gas Substances 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 9
- 239000002904 solvent Substances 0.000 claims description 8
- 238000007667 floating Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 2
- 238000006477 desulfuration reaction Methods 0.000 description 26
- 230000023556 desulfurization Effects 0.000 description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 24
- 230000000694 effects Effects 0.000 description 21
- 229910000831 Steel Inorganic materials 0.000 description 19
- 239000010959 steel Substances 0.000 description 19
- 235000013980 iron oxide Nutrition 0.000 description 17
- 238000007670 refining Methods 0.000 description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 229910052742 iron Inorganic materials 0.000 description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 9
- 230000007423 decrease Effects 0.000 description 9
- 229910052698 phosphorus Inorganic materials 0.000 description 9
- 239000011574 phosphorus Substances 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 8
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 7
- 230000003647 oxidation Effects 0.000 description 7
- 238000009628 steelmaking Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 238000012733 comparative method Methods 0.000 description 5
- 239000010436 fluorite Substances 0.000 description 5
- 239000011572 manganese Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000001737 promoting effect Effects 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 230000005587 bubbling Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 229910052748 manganese Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910001634 calcium fluoride Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 238000002203 pretreatment Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910001610 cryolite Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910002059 quaternary alloy Inorganic materials 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- 239000002699 waste material Substances 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)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9438881A JPS5816006A (ja) | 1981-06-17 | 1981-06-17 | 溶銑脱燐方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9438881A JPS5816006A (ja) | 1981-06-17 | 1981-06-17 | 溶銑脱燐方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5816006A JPS5816006A (ja) | 1983-01-29 |
| JPS6123243B2 true JPS6123243B2 (sv) | 1986-06-05 |
Family
ID=14108894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9438881A Granted JPS5816006A (ja) | 1981-06-17 | 1981-06-17 | 溶銑脱燐方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816006A (sv) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS591609A (ja) * | 1982-06-28 | 1984-01-07 | Nippon Steel Corp | 溶銑の精錬方法 |
| JPS62109910A (ja) * | 1985-11-06 | 1987-05-21 | Kobe Steel Ltd | 溶銑の脱珪脱燐方法 |
| JPS62109908A (ja) * | 1985-11-06 | 1987-05-21 | Kobe Steel Ltd | 溶銑の脱珪脱燐脱硫方法 |
| JP4779464B2 (ja) * | 2005-06-28 | 2011-09-28 | Ｊｆｅスチール株式会社 | 低燐溶銑の製造方法 |
| JP5135836B2 (ja) * | 2007-03-19 | 2013-02-06 | Ｊｆｅスチール株式会社 | 溶銑の脱燐処理方法 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51115218A (en) * | 1975-04-02 | 1976-10-09 | Nippon Steel Corp | Dephosphorization of molten iron |
| JPS5558310A (en) * | 1978-10-24 | 1980-05-01 | Nippon Steel Corp | Treating method of molten iron |
| JPS5594413A (en) * | 1979-01-11 | 1980-07-17 | Kobe Steel Ltd | Recycling method of desulfurization base metal |
| JPS5594415A (en) * | 1979-01-13 | 1980-07-17 | Nippon Steel Corp | Steel making method of less slag producing amount |
| JPS569308A (en) * | 1979-06-30 | 1981-01-30 | Riken Kogyo Kk | Desulfurization and dephosphorization of molten pig iron |
| JPS5623212A (en) * | 1979-08-03 | 1981-03-05 | Nippon Steel Corp | Dephosphorizing and desulfurizing method of low silicon molten iron |
| JPS5629611A (en) * | 1979-08-20 | 1981-03-25 | Nippon Steel Corp | Simultaneous dephosphorizing desulfurization of blast furnace molten pig iron |
-
1981
- 1981-06-17 JP JP9438881A patent/JPS5816006A/ja active Granted
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51115218A (en) * | 1975-04-02 | 1976-10-09 | Nippon Steel Corp | Dephosphorization of molten iron |
| JPS5558310A (en) * | 1978-10-24 | 1980-05-01 | Nippon Steel Corp | Treating method of molten iron |
| JPS5594413A (en) * | 1979-01-11 | 1980-07-17 | Kobe Steel Ltd | Recycling method of desulfurization base metal |
| JPS5594415A (en) * | 1979-01-13 | 1980-07-17 | Nippon Steel Corp | Steel making method of less slag producing amount |
| JPS569308A (en) * | 1979-06-30 | 1981-01-30 | Riken Kogyo Kk | Desulfurization and dephosphorization of molten pig iron |
| JPS5623212A (en) * | 1979-08-03 | 1981-03-05 | Nippon Steel Corp | Dephosphorizing and desulfurizing method of low silicon molten iron |
| JPS5629611A (en) * | 1979-08-20 | 1981-03-25 | Nippon Steel Corp | Simultaneous dephosphorizing desulfurization of blast furnace molten pig iron |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5816006A (ja) | 1983-01-29 |
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