HU177270B - Process for diminishing nitrogen content of steels containing less than 0,25 weight-procent of carbon producing them in basic converter - Google Patents
Process for diminishing nitrogen content of steels containing less than 0,25 weight-procent of carbon producing them in basic converter Download PDFInfo
- Publication number
- HU177270B HU177270B HU77UI267A HUUI000267A HU177270B HU 177270 B HU177270 B HU 177270B HU 77UI267 A HU77UI267 A HU 77UI267A HU UI000267 A HUUI000267 A HU UI000267A HU 177270 B HU177270 B HU 177270B
- Authority
- HU
- Hungary
- Prior art keywords
- nitrogen
- converter
- gas
- oxygen
- amount
- Prior art date
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000008569 process Effects 0.000 title claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 title description 37
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title description 36
- 229910000831 Steel Inorganic materials 0.000 title description 12
- 239000010959 steel Substances 0.000 title description 12
- 230000003467 diminishing effect Effects 0.000 title 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 56
- 239000001301 oxygen Substances 0.000 claims abstract description 56
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 56
- 239000007789 gas Substances 0.000 claims description 73
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical group [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 64
- 229910052786 argon Inorganic materials 0.000 claims description 32
- 239000000155 melt Substances 0.000 claims description 29
- 229910052751 metal Inorganic materials 0.000 claims description 19
- 239000002184 metal Substances 0.000 claims description 19
- 238000007670 refining Methods 0.000 claims description 11
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 7
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract description 5
- 238000007664 blowing Methods 0.000 description 23
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 230000008859 change Effects 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 6
- 229910002091 carbon monoxide Inorganic materials 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000003570 air Substances 0.000 description 4
- 239000012080 ambient air Substances 0.000 description 4
- 238000005422 blasting Methods 0.000 description 4
- 238000011109 contamination Methods 0.000 description 4
- 238000001802 infusion Methods 0.000 description 4
- 229910000805 Pig iron Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 239000000161 steel melt Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000252254 Catostomidae Species 0.000 description 1
- 241000272168 Laridae Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- VVTSZOCINPYFDP-UHFFFAOYSA-N [O].[Ar] Chemical compound [O].[Ar] VVTSZOCINPYFDP-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000003716 rejuvenation Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 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)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Carbon And Carbon Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75840877A | 1977-01-11 | 1977-01-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HU177270B true HU177270B (en) | 1981-08-28 |
Family
ID=25051636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HU77UI267A HU177270B (en) | 1977-01-11 | 1977-10-11 | Process for diminishing nitrogen content of steels containing less than 0,25 weight-procent of carbon producing them in basic converter |
Country Status (23)
| Country | Link |
|---|---|
| US (1) | US4149878A (enExample) |
| JP (1) | JPS5387919A (enExample) |
| AU (1) | AU511060B2 (enExample) |
| BE (1) | BE859513A (enExample) |
| BR (1) | BR7706779A (enExample) |
| DD (1) | DD134652A5 (enExample) |
| DE (2) | DE2759748C2 (enExample) |
| ES (3) | ES463059A1 (enExample) |
| FI (1) | FI772995A7 (enExample) |
| FR (1) | FR2376900A1 (enExample) |
| GB (2) | GB1597598A (enExample) |
| HU (1) | HU177270B (enExample) |
| IN (1) | IN148165B (enExample) |
| IT (1) | IT1109308B (enExample) |
| LU (1) | LU78297A1 (enExample) |
| NL (1) | NL7711164A (enExample) |
| NO (1) | NO145277C (enExample) |
| PH (1) | PH12963A (enExample) |
| PL (1) | PL122283B1 (enExample) |
| SE (1) | SE7711341L (enExample) |
| TR (1) | TR20137A (enExample) |
| YU (1) | YU242777A (enExample) |
| ZA (1) | ZA775918B (enExample) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4373949A (en) * | 1979-02-07 | 1983-02-15 | Union Carbide Corporation | Method for increasing vessel lining life for basic oxygen furnaces |
| CA1143947A (en) * | 1979-02-07 | 1983-04-05 | Jerry V. Spruell | Method for increasing vessel lining life for basic oxygen furnaces |
| US4397685A (en) * | 1982-03-26 | 1983-08-09 | Union Carbide Corporation | Production of ultra low carbon steel by the basic oxygen process |
| GB9609099D0 (en) * | 1996-05-01 | 1996-07-03 | Boc Group Plc | Oxygen steelmaking |
| US5897684A (en) * | 1997-04-17 | 1999-04-27 | Ltv Steel Company, Inc. | Basic oxygen process with iron oxide pellet addition |
| WO2008076901A1 (en) * | 2006-12-15 | 2008-06-26 | Praxair Technology, Inc. | Injection method for inert gas |
| CN108690898B (zh) * | 2018-06-14 | 2020-01-07 | 鞍钢股份有限公司 | 一种复吹转炉增氮的精确控制方法 |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT168259B (de) * | 1949-09-21 | 1951-05-10 | Oesterr Alpine Montan | Einrichtung und Verfahren zum Blasen von Gasen gegen die Oberfläche von Metallbädern |
| BE610265A (enExample) * | 1960-11-18 | |||
| BE643213A (enExample) * | 1964-01-30 | 1964-05-15 | ||
| DE1433652A1 (de) * | 1964-08-08 | 1969-09-18 | Thyssen Huette Ag | Verfahren zur Herstellung stickstoffarmer Staehle |
| GB1253581A (en) * | 1968-02-24 | 1971-11-17 | Maximilianshuette Eisenwerk | Improvements in processes and apparatus for making steel |
| DE1758816C2 (de) * | 1968-08-13 | 1975-11-20 | Eisenwerk-Gesellschaft Maximilianshuette Mbh, 8458 Sulzbach-Rosenberg | Verfahren zum Frischen von Roheisen zu Stahl |
| ZA704201B (en) * | 1969-06-26 | 1971-02-24 | African Oxygen Ltd | Steelmaking |
| US3990888A (en) * | 1972-10-06 | 1976-11-09 | Uddeholms Aktiebolag | Decarburization of a metal melt |
| JPS5318323B2 (enExample) * | 1973-12-31 | 1978-06-14 | ||
| DE2525355A1 (de) | 1974-06-07 | 1975-12-18 | British Steel Corp | Verfahren und vorrichtung zum frischen von eisen |
| DE2538159C2 (de) * | 1974-08-30 | 1984-08-09 | USS Engineers and Consultants, Inc., Pittsburgh, Pa. | Verfahren zum Frischen von Roheisen |
| US4021333A (en) * | 1975-08-27 | 1977-05-03 | The Lubrizol Corporation | Method of rerefining oil by distillation and extraction |
-
1977
- 1977-10-04 ZA ZA00775918A patent/ZA775918B/xx unknown
- 1977-10-06 NO NO773410A patent/NO145277C/no unknown
- 1977-10-07 GB GB21054/80A patent/GB1597598A/en not_active Expired
- 1977-10-07 GB GB41775/77A patent/GB1597597A/en not_active Expired
- 1977-10-07 BE BE181570A patent/BE859513A/xx not_active IP Right Cessation
- 1977-10-08 ES ES463059A patent/ES463059A1/es not_active Expired
- 1977-10-10 YU YU02427/77A patent/YU242777A/xx unknown
- 1977-10-10 SE SE7711341A patent/SE7711341L/ not_active Application Discontinuation
- 1977-10-11 HU HU77UI267A patent/HU177270B/hu unknown
- 1977-10-11 PH PH20321A patent/PH12963A/en unknown
- 1977-10-11 FR FR7730595A patent/FR2376900A1/fr active Granted
- 1977-10-11 JP JP12104077A patent/JPS5387919A/ja active Granted
- 1977-10-11 IT IT51357/77A patent/IT1109308B/it active
- 1977-10-11 LU LU78297A patent/LU78297A1/xx unknown
- 1977-10-11 DE DE2759748A patent/DE2759748C2/de not_active Expired
- 1977-10-11 BR BR7706779A patent/BR7706779A/pt unknown
- 1977-10-11 DE DE2745722A patent/DE2745722C3/de not_active Expired
- 1977-10-11 IN IN306/DEL/77A patent/IN148165B/en unknown
- 1977-10-11 NL NL7711164A patent/NL7711164A/xx not_active Application Discontinuation
- 1977-10-11 FI FI772995A patent/FI772995A7/fi not_active Application Discontinuation
- 1977-10-11 TR TR20137A patent/TR20137A/xx unknown
- 1977-10-17 PL PL1977201568A patent/PL122283B1/pl unknown
- 1977-10-31 AU AU30198/77A patent/AU511060B2/en not_active Expired
- 1977-11-04 DD DD77201882A patent/DD134652A5/xx unknown
-
1978
- 1978-02-23 US US05/880,562 patent/US4149878A/en not_active Expired - Lifetime
- 1978-08-16 ES ES472578A patent/ES472578A1/es not_active Expired
- 1978-08-16 ES ES472579A patent/ES472579A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2745722C3 (de) | 1981-04-23 |
| YU242777A (en) | 1982-10-31 |
| NL7711164A (nl) | 1978-07-13 |
| PL122283B1 (en) | 1982-07-31 |
| NO145277B (no) | 1981-11-09 |
| JPS5387919A (en) | 1978-08-02 |
| ES472578A1 (es) | 1979-02-16 |
| SE7711341L (sv) | 1978-07-12 |
| BE859513A (fr) | 1978-04-07 |
| IT1109308B (it) | 1985-12-16 |
| IN148165B (enExample) | 1980-11-15 |
| LU78297A1 (enExample) | 1978-06-12 |
| PL201568A1 (pl) | 1978-08-14 |
| BR7706779A (pt) | 1978-08-01 |
| ZA775918B (en) | 1978-05-30 |
| US4149878A (en) | 1979-04-17 |
| PH12963A (en) | 1979-10-19 |
| FR2376900B1 (enExample) | 1983-12-23 |
| AU3019877A (en) | 1979-05-10 |
| FR2376900A1 (fr) | 1978-08-04 |
| ES463059A1 (es) | 1979-01-01 |
| DE2759748C2 (de) | 1982-07-29 |
| DD134652A5 (de) | 1979-03-14 |
| DE2745722A1 (de) | 1978-07-20 |
| DE2745722B2 (de) | 1980-08-28 |
| ES472579A1 (es) | 1979-02-16 |
| NO773410L (no) | 1978-07-12 |
| GB1597598A (en) | 1981-09-09 |
| JPS5736332B2 (enExample) | 1982-08-03 |
| NO145277C (no) | 1982-02-17 |
| GB1597597A (en) | 1981-09-09 |
| FI772995A7 (fi) | 1978-07-12 |
| TR20137A (tr) | 1980-09-01 |
| AU511060B2 (en) | 1980-07-24 |
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