GB1421669A - Process and apparatus for preparing metals in an electric furnace - Google Patents
Process and apparatus for preparing metals in an electric furnaceInfo
- Publication number
- GB1421669A GB1421669A GB5314173A GB5314173A GB1421669A GB 1421669 A GB1421669 A GB 1421669A GB 5314173 A GB5314173 A GB 5314173A GB 5314173 A GB5314173 A GB 5314173A GB 1421669 A GB1421669 A GB 1421669A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- during
- steel
- tuyere
- nov
- 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 title abstract 2
- 239000002184 metal Substances 0.000 title abstract 2
- 150000002739 metals Chemical class 0.000 title abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 3
- 230000003647 oxidation Effects 0.000 abstract 3
- 238000007254 oxidation reaction Methods 0.000 abstract 3
- 239000010959 steel Substances 0.000 abstract 3
- 229910001209 Low-carbon steel Inorganic materials 0.000 abstract 2
- 230000007935 neutral effect Effects 0.000 abstract 2
- 239000003223 protective agent Substances 0.000 abstract 2
- 239000010935 stainless steel Substances 0.000 abstract 2
- 229910001220 stainless steel Inorganic materials 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 229910001021 Ferroalloy Inorganic materials 0.000 abstract 1
- 238000003723 Smelting Methods 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 abstract 1
- 239000003830 anthracite Substances 0.000 abstract 1
- 239000003085 diluting agent Substances 0.000 abstract 1
- 239000000295 fuel oil Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- -1 mild steel Chemical class 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 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
- C21C5/52—Manufacture of steel in electric furnaces
- C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
- C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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)
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
1421669 Preparation of steels CREUSOTLOIRE 15 Nov 1973 [28 Nov 1972] 53141/73 Heading C7D In the production of metals or alloys, e.g. mild steel, stainless steel, in an electric furnace, O 2 or an 02-rich gas surrounded by a protective agent, e.g. fuel oil, is blown below the surface of the charge during an oxidation stage by a consumable tuyere in the hearth or wall of the furnace. The oxidizing gas and protective agent are replaced by a neutral or reducing gas, e.g. Ar, N 2 , during subsequent reduction, desulphurization or deoxidation. In addition air may be supplied through both conduits of the tuyere, before the oxidation stage, to activate smelting. During the reducing phase pulverulent CaO, Si or C is contained in the gas, and during oxidation, the O 2 or 02-rich gas contains a diluent, e.g. water vapour, neutral gas or atomized water. In the Example, mild steel is produced from steel scrap and anthracite. The preparation of stainless steel from Cr steel scrap and ferro alloys is also referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7242208A FR2207998B1 (en) | 1972-11-28 | 1972-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1421669A true GB1421669A (en) | 1976-01-21 |
Family
ID=9107822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5314173A Expired GB1421669A (en) | 1972-11-28 | 1973-11-15 | Process and apparatus for preparing metals in an electric furnace |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE807861A (en) |
| ES (1) | ES419860A1 (en) |
| FR (1) | FR2207998B1 (en) |
| GB (1) | GB1421669A (en) |
| IT (1) | IT999704B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0240998A1 (en) * | 1986-04-08 | 1987-10-14 | Union Carbide Corporation | Melting furnace and method for melting metal |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1058181A (en) * | 1951-06-15 | 1954-03-15 | Westfalenhu Tte Ag | Process for the preliminary refining of pig iron or cast iron for steel in the ladle, in a martin furnace or in an electric furnace |
| FR1153416A (en) * | 1955-03-21 | 1958-03-10 | Air Liquide | Process and apparatus for refining cast iron by blowing in pure oxygen |
| FR1243414A (en) * | 1959-02-27 | 1960-10-14 | Air Liquide | Process for refining phosphorous pig iron using concentrated oxygen |
| NL296346A (en) * | 1962-08-07 | |||
| BE752893A (en) * | 1969-07-08 | 1970-12-16 | Forges De La Loire St Chamond | METHOD AND DEVICE FOR COOLING A REFINING CONVERTER TUBE |
-
1972
- 1972-11-28 FR FR7242208A patent/FR2207998B1/fr not_active Expired
-
1973
- 1973-10-23 ES ES419860A patent/ES419860A1/en not_active Expired
- 1973-10-30 IT IT7020373A patent/IT999704B/en active
- 1973-11-15 GB GB5314173A patent/GB1421669A/en not_active Expired
- 1973-11-27 BE BE138220A patent/BE807861A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0240998A1 (en) * | 1986-04-08 | 1987-10-14 | Union Carbide Corporation | Melting furnace and method for melting metal |
| EP0375657A1 (en) * | 1986-04-08 | 1990-06-27 | Praxair Technology, Inc. | Melting furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| IT999704B (en) | 1976-03-10 |
| ES419860A1 (en) | 1976-03-16 |
| FR2207998B1 (en) | 1975-01-03 |
| DE2356924B2 (en) | 1976-08-05 |
| FR2207998A1 (en) | 1974-06-21 |
| DE2356924A1 (en) | 1974-06-06 |
| BE807861A (en) | 1974-05-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |