GB609850A - Improvements in and relating to the desulphurization of pig iron - Google Patents
Improvements in and relating to the desulphurization of pig ironInfo
- Publication number
- GB609850A GB609850A GB8166/46A GB816646A GB609850A GB 609850 A GB609850 A GB 609850A GB 8166/46 A GB8166/46 A GB 8166/46A GB 816646 A GB816646 A GB 816646A GB 609850 A GB609850 A GB 609850A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- slag
- gas
- volume
- vessel
- 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
- Y02P10/122—Reduction of greenhouse gas [GHG] emissions by capturing or storing CO2
Abstract
In a process of desulphurizing pig iron by means of a desulphurizing slag under strong reducing conditions, a gas is passed into the molten mass in a closed, unfired vessel in such quantity, not less than four times the volume of the iron, and with such provision for the escape of excess gas, that carbon monoxide is continuously discharged from the vessel with consequent reduction of the partial pressure of oxygen at the iron slag interface. The gas used may be hydrogen, nitrogen, a mixture of hydrogen and nitrogen or blast furnace gas treated to remove CO, or CO and CO2, and the amount of CO present should never exceed 40 per cent. A layer of slag comprising lime, fluorspar and blast furnace slag may be supported on the metal in a rotatable vessel lined with a carbon refractory and the stream of gas not exceeding sixteen times the volume of iron passed through at least half the depth of metal and slag. The amount of sulphur remaining in the iron depends on the volume of gas used and it is stated that 0.003 per cent S may be obtained. Specification 499,302 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8166/46A GB609850A (en) | 1946-03-15 | 1946-03-15 | Improvements in and relating to the desulphurization of pig iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8166/46A GB609850A (en) | 1946-03-15 | 1946-03-15 | Improvements in and relating to the desulphurization of pig iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB609850A true GB609850A (en) | 1948-10-07 |
Family
ID=9847042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8166/46A Expired GB609850A (en) | 1946-03-15 | 1946-03-15 | Improvements in and relating to the desulphurization of pig iron |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB609850A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2587573A (en) * | 1949-06-09 | 1952-02-26 | Essex Res Corp | Desulfurizing process |
| DE1105441B (en) * | 1954-12-13 | 1961-04-27 | Hoesch Ag | Process for the direct production of steel from high-sulfur iron ores |
-
1946
- 1946-03-15 GB GB8166/46A patent/GB609850A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2587573A (en) * | 1949-06-09 | 1952-02-26 | Essex Res Corp | Desulfurizing process |
| DE1105441B (en) * | 1954-12-13 | 1961-04-27 | Hoesch Ag | Process for the direct production of steel from high-sulfur iron ores |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1308212A (en) | Decarburizing molten steel | |
| GB609850A (en) | Improvements in and relating to the desulphurization of pig iron | |
| GB622419A (en) | Desulphurization of molten ferrous metal | |
| US2587573A (en) | Desulfurizing process | |
| GB1007051A (en) | Method for nitrogen-enrichment of molten steel covered with slag | |
| GB685326A (en) | Improvements in or relating to process for making steel | |
| ES409323A1 (en) | Method of obtaining low-phosphorus contents in medium-and high-carbon steels in a bottom-blown oxygen steelmaking furnace | |
| GB1216779A (en) | High pressure reduction of iron ore | |
| JPS5834527B2 (en) | Teirinyousennoseizohouhou | |
| US3304172A (en) | Process for the manufacture of low phosphorus pig iron | |
| GB756429A (en) | Process for dephosphorizing a ferrous metal, for example pig iron | |
| SU484697A3 (en) | The method of redistribution of iron into steel | |
| GB878386A (en) | Treatment of molten ferrous metal | |
| JPS5591926A (en) | Preparation of extremely low carbon nitrogen stainless steel | |
| GB865325A (en) | Improvements relating to the preparation of calcium carbide in a shaft furnace | |
| JPS55107715A (en) | Blowing method of dephosphorizer to bottom blowing converter | |
| GB1350499A (en) | Process and apparatus for continuous steel-making | |
| GB499302A (en) | Improvement in iron desulphurization | |
| GB1315894A (en) | Method and apparatus for refining molten metals | |
| JPS5261113A (en) | Desulfurization method of blast furnace slag | |
| SU447433A1 (en) | The method of steelmaking | |
| GB810960A (en) | Method for desulphurizing molten pig iron | |
| JPS5591921A (en) | Manufacture of low hydrogen steel | |
| JPH0420963B2 (en) | ||
| GB906127A (en) | Improvements relating to processes of desulphurising pig iron |