GB852424A - Improvements relating to methods of desulphurising pig iron and cast iron melts - Google Patents
Improvements relating to methods of desulphurising pig iron and cast iron meltsInfo
- Publication number
- GB852424A GB852424A GB35406/57A GB3540657A GB852424A GB 852424 A GB852424 A GB 852424A GB 35406/57 A GB35406/57 A GB 35406/57A GB 3540657 A GB3540657 A GB 3540657A GB 852424 A GB852424 A GB 852424A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- vacuum
- desulphurising
- methods
- improvements relating
- 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
-
- 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
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/10—Handling in a vacuum
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)
Abstract
852,424. Refining iron. DORTMUNDHORDER HUTTENUNION A.G. Nov. 13, 1957 [Dec. 24, 1956], No. 35406/57. Class 72 Liquid iron containing over 3% carbon is desulphurized by exposure to a vacuum of less than 10 mm. mercury. As shown, it may be drawn into vacuum vessel 1 which can be charged and discharged by raising and lowering ladle 12 by means of a hydraulic cylinder 14 thus agitating the metal while it is under the vacuum which may be less than 10 mm. Hg. The sulphur compounds may be recovered by freezing device 10<SP>1</SP> in the pipe 10 of pumping system 9. To improve volatilization of sulphur compounds the pig iron may be washed through with gas before or during vacuum treatment and a CO reaction may be obtained by the addition of oxygen. Iron treated in this way is said to form spheroidal graphite without the addition of a nodularizing agent. Specification 847,854 is referred to. Reference has been directed by the Comptroller to Specification 801,518.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE852424X | 1956-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB852424A true GB852424A (en) | 1960-10-26 |
Family
ID=6784523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35406/57A Expired GB852424A (en) | 1956-12-24 | 1957-11-13 | Improvements relating to methods of desulphurising pig iron and cast iron melts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB852424A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3137566A (en) * | 1960-08-13 | 1964-06-16 | Koelsch Foelzer Werke Ag | Method of pouring cast iron |
-
1957
- 1957-11-13 GB GB35406/57A patent/GB852424A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3137566A (en) * | 1960-08-13 | 1964-06-16 | Koelsch Foelzer Werke Ag | Method of pouring cast iron |
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