GB924646A - Improvements in or relating to the desulphurisation of crude iron - Google Patents
Improvements in or relating to the desulphurisation of crude ironInfo
- Publication number
- GB924646A GB924646A GB42870/60A GB4287060A GB924646A GB 924646 A GB924646 A GB 924646A GB 42870/60 A GB42870/60 A GB 42870/60A GB 4287060 A GB4287060 A GB 4287060A GB 924646 A GB924646 A GB 924646A
- Authority
- GB
- United Kingdom
- Prior art keywords
- soda
- iron
- lime
- mixture
- pressure
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 12
- 229910052742 iron Inorganic materials 0.000 title abstract 6
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 5
- 239000000203 mixture Substances 0.000 abstract 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 4
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 4
- 239000004571 lime Substances 0.000 abstract 4
- 238000002347 injection Methods 0.000 abstract 3
- 239000007924 injection Substances 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 1
- 235000010216 calcium carbonate Nutrition 0.000 abstract 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 abstract 1
- 229910001634 calcium fluoride Inorganic materials 0.000 abstract 1
- 239000012159 carrier gas Substances 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000008187 granular material Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 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
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/02—Dephosphorising or desulfurising
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (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)
- Manufacture And Refinement Of Metals (AREA)
Abstract
Crude iron, e.g. containing 0.10 to 0.25% S, is desulphurized by injecting under pressure through a pipe into a bath of the molten iron, e.g. at a temperature of 1150 DEG to 1250 DEG C., a stream of carrier gas such as air or preferably nitrogen in which is suspended a powdered mixture of lime and 1-18% by weight of the mixture of soda in an amount of not more than 5 litres of gas per Kg of the powdered mixture, which may also contain CaCO3 and/or CaF2. The gas is preferably injected at a pressure 0.1-0.5 atmosphere above the static iron pressure at the pipe outlet. The lime and soda may be stored in separate vessels connected, e.g. by screw conveyers, to a pneumatic mixer so that the lime/soda proportion may be continuously adjustable during injection, e.g. the amount of soda in the mixture increasing during injection, initially being lime without soda for the first 6 Kg. per metric ton of iron; the rate of injection may also be increased. A specific composition of a basic slag formed on the bath surface is 30% CaO, 2-4% CaS, 4% SiO2, 2%Na2O, balance iron granules and iron oxide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEH0038184 | 1959-12-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB924646A true GB924646A (en) | 1963-04-24 |
Family
ID=7153554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB42870/60A Expired GB924646A (en) | 1959-12-19 | 1960-12-13 | Improvements in or relating to the desulphurisation of crude iron |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3192037A (en) |
| BE (1) | BE598113A (en) |
| DE (1) | DE1408188A1 (en) |
| GB (1) | GB924646A (en) |
| LU (1) | LU39449A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA812968B (en) * | 1980-05-10 | 1982-05-26 | Foseco Int | Desulphurisation of ferrous melts |
| DE3111509A1 (en) * | 1981-03-24 | 1982-10-07 | Hoechst Ag, 6000 Frankfurt | METHOD FOR THE PRODUCTION OF DESULFURING AGENTS FOR BOD IRON OR STEEL MELT |
| USRE31676E (en) | 1982-09-29 | 1984-09-18 | Thyssen Aktiengesellschaft vorm August Thyssen-Hutte AG | Method and apparatus for dispensing a fluidizable solid from a pressure vessel |
| DE3942405A1 (en) * | 1989-12-21 | 1991-06-27 | Krupp Polysius Ag | METHOD AND CONVEYOR FOR BLOWING IN POWDER-SHAPED TREATMENT AGAINST RAW IRON AND STEEL MELTS |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB510527A (en) * | 1937-04-17 | 1939-08-01 | Thyssen Huette Ag | Method of desulphurising and refining iron |
| US2622977A (en) * | 1947-11-14 | 1952-12-23 | Kalling Bo Michael Sture | Desulfurization of iron and iron alloys |
| US2811436A (en) * | 1954-02-08 | 1957-10-29 | Heuer Russell Pearce | Process of producing steel |
| US2906616A (en) * | 1955-04-28 | 1959-09-29 | Siderurgie Fse Inst Rech | Method for desulfurizing molten metal and in particular liquid pig iron |
-
1959
- 1959-12-19 DE DE19591408188 patent/DE1408188A1/en active Pending
-
1960
- 1960-11-23 LU LU39449D patent/LU39449A1/xx unknown
- 1960-12-13 BE BE598113A patent/BE598113A/en unknown
- 1960-12-13 GB GB42870/60A patent/GB924646A/en not_active Expired
-
1963
- 1963-10-03 US US321713A patent/US3192037A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE1408188A1 (en) | 1968-10-17 |
| LU39449A1 (en) | 1961-01-24 |
| BE598113A (en) | 1961-03-31 |
| US3192037A (en) | 1965-06-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3929464A (en) | Desulfurization of molten ferrous metals | |
| GB924646A (en) | Improvements in or relating to the desulphurisation of crude iron | |
| GB1008723A (en) | Improvements in or relating to a blowing device | |
| ATE153323T1 (en) | PRODUCTION OF FIREPROOF FROM ASBESTOS RESIDUES | |
| AU535747B2 (en) | Stirring molten metal | |
| GB1403058A (en) | Refining of low phosphorus pig irons | |
| GB963663A (en) | Improvements in or relating to the desulphurisation of iron | |
| ES266188A1 (en) | A device for the performance of metallurgical processes (Machine-translation by Google Translate, not legally binding) | |
| JPS5760007A (en) | Method for protection of oxygen blowing tuyere into molten iron | |
| GB919402A (en) | Metallurgical lances | |
| JPS54121216A (en) | Desulfurization of molten iron | |
| JPS5629611A (en) | Simultaneous dephosphorizing desulfurization of blast furnace molten pig iron | |
| JPS5623220A (en) | Molten iron desulfurizing method | |
| IN153342B (en) | ||
| JPS5582717A (en) | Charging method for granular slag-making agent to reaction furnace | |
| GB609850A (en) | Improvements in and relating to the desulphurization of pig iron | |
| JPS5743920A (en) | Method for blow refining in bottom-blown converter | |
| GB918299A (en) | Lance for metal treatment | |
| GB808797A (en) | Improvements in or relating to the treatment of steel | |
| JPS5261113A (en) | Desulfurization method of blast furnace slag | |
| GB799117A (en) | Process for the manufacture of slags rich in alumina from metallurgical smelting processes | |
| GB861238A (en) | Process for making steel | |
| GB858377A (en) | Improvements relating to the manufacture of steel | |
| GB863803A (en) | Improvements relating to manufacture of steel in a rotary furnace | |
| GB705321A (en) | Improvements relating to the production of steel |