GB1251996A - - Google Patents
Info
- Publication number
- GB1251996A GB1251996A GB1251996DA GB1251996A GB 1251996 A GB1251996 A GB 1251996A GB 1251996D A GB1251996D A GB 1251996DA GB 1251996 A GB1251996 A GB 1251996A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bath
- lime
- gas
- nov
- blown
- 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
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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
1,251,996. Desulphurizing iron and steel. HOESCH A.G. Nov.5, 1968 [Nov.9, 1967], No.52420/68. Heading C7D. Sulphur is converted into volatile compounds by simultaneously adding lime to the bath and blowing in a gaseous hydrocarbon under non- oxidizing conditions, the hydrocarbon being shielded to prevent decomposition before it enters the melt. Natural gas may be used, and may contain lime in suspension; alternatively the bath may be covered with lime and the gas blown thereon, or the gas may be injected from below through a porous plug. Other desulphurizers such as calcium carbide may be used in addition to the lime, while following desulphurization nitrogen may be bubbled through the bath, or vacuum treatment may be applied, to remove hydrogen. To exclude oxygen the bath may be initially covered with a hood, with a layer of slag, or with a layer of powdered desulphurizer, or inert gas may be blown on to it.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19671583256 DE1583256B1 (en) | 1967-11-09 | 1967-11-09 | Process for the desulphurization of iron melts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1251996A true GB1251996A (en) | 1971-11-03 |
Family
ID=5679461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1251996D Expired GB1251996A (en) | 1967-11-09 | 1968-11-05 |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT313340B (en) |
| BE (1) | BE723445A (en) |
| FR (1) | FR1591331A (en) |
| GB (1) | GB1251996A (en) |
| LU (1) | LU57237A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE773855A (en) * | 1971-10-12 | 1972-01-31 | Centre Rech Metallurgique | PROCESS FOR DESULFURING A METAL. |
| DE2558263C3 (en) * | 1974-12-31 | 1979-04-12 | Institut Tschernoj Metallurgii, Dnepropetrowsk (Sowjetunion) | Process for the treatment of liquid pig iron with magnesium |
-
1968
- 1968-11-04 LU LU57237D patent/LU57237A1/xx unknown
- 1968-11-05 GB GB1251996D patent/GB1251996A/en not_active Expired
- 1968-11-06 BE BE723445D patent/BE723445A/xx unknown
- 1968-11-07 AT AT1084768A patent/AT313340B/en not_active IP Right Cessation
- 1968-11-07 FR FR1591331D patent/FR1591331A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| LU57237A1 (en) | 1970-05-05 |
| AT313340B (en) | 1974-02-11 |
| BE723445A (en) | 1969-05-06 |
| FR1591331A (en) | 1970-04-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |