JPH0377246B2 - - Google Patents
Info
- Publication number
- JPH0377246B2 JPH0377246B2 JP61239245A JP23924586A JPH0377246B2 JP H0377246 B2 JPH0377246 B2 JP H0377246B2 JP 61239245 A JP61239245 A JP 61239245A JP 23924586 A JP23924586 A JP 23924586A JP H0377246 B2 JPH0377246 B2 JP H0377246B2
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- dephosphorization
- slag
- hot metal
- converter
- 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 - Lifetime
Links
- 239000002893 slag Substances 0.000 claims description 125
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 116
- 229910052751 metal Inorganic materials 0.000 claims description 66
- 239000002184 metal Substances 0.000 claims description 66
- 239000000292 calcium oxide Substances 0.000 claims description 58
- 235000012255 calcium oxide Nutrition 0.000 claims description 58
- 238000000034 method Methods 0.000 claims description 55
- 238000005261 decarburization Methods 0.000 claims description 50
- 239000003795 chemical substances by application Substances 0.000 claims description 48
- 238000007664 blowing Methods 0.000 claims description 39
- 229910000831 Steel Inorganic materials 0.000 claims description 37
- 239000010959 steel Substances 0.000 claims description 37
- 239000007789 gas Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000009628 steelmaking Methods 0.000 claims description 16
- 238000007670 refining Methods 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 13
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 7
- 229910001882 dioxygen Inorganic materials 0.000 claims description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 38
- 229910052742 iron Inorganic materials 0.000 description 18
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 17
- 239000010436 fluorite Substances 0.000 description 17
- 230000004907 flux Effects 0.000 description 15
- 239000002245 particle Substances 0.000 description 12
- 238000012545 processing Methods 0.000 description 11
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 10
- 239000010459 dolomite Substances 0.000 description 10
- 229910000514 dolomite Inorganic materials 0.000 description 10
- 239000011572 manganese Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 8
- 238000006477 desulfuration reaction Methods 0.000 description 8
- 230000023556 desulfurization Effects 0.000 description 8
- 229910052698 phosphorus Inorganic materials 0.000 description 8
- 239000011574 phosphorus Substances 0.000 description 8
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 229910000805 Pig iron Inorganic materials 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000013019 agitation Methods 0.000 description 3
- 238000005422 blasting Methods 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- 229910000616 Ferromanganese Inorganic materials 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003864 humus Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012768 molten material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23924586A JPS6393813A (ja) | 1986-10-09 | 1986-10-09 | 製鋼方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23924586A JPS6393813A (ja) | 1986-10-09 | 1986-10-09 | 製鋼方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6393813A JPS6393813A (ja) | 1988-04-25 |
| JPH0377246B2 true JPH0377246B2 (zh) | 1991-12-10 |
Family
ID=17041894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23924586A Granted JPS6393813A (ja) | 1986-10-09 | 1986-10-09 | 製鋼方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6393813A (zh) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0472007A (ja) * | 1990-07-10 | 1992-03-06 | Nippon Steel Corp | 溶鋼製造法 |
| JP2000185987A (ja) * | 1998-10-15 | 2000-07-04 | Nkk Corp | 緩効性カリ肥料の製造方法 |
| JP4598220B2 (ja) * | 2000-03-02 | 2010-12-15 | 新日本製鐵株式会社 | 脱炭滓を用いた溶銑の処理方法 |
| JP2011099148A (ja) * | 2009-11-06 | 2011-05-19 | Nippon Steel Corp | 安定なスラグを副生する製鋼方法 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57145916A (en) * | 1981-03-06 | 1982-09-09 | Nippon Steel Corp | Divided refining method by reusing slag |
-
1986
- 1986-10-09 JP JP23924586A patent/JPS6393813A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57145916A (en) * | 1981-03-06 | 1982-09-09 | Nippon Steel Corp | Divided refining method by reusing slag |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6393813A (ja) | 1988-04-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |