GB623966A - Improvements in a method for desulphurizing iron and steel with molten calcium carbide - Google Patents
Improvements in a method for desulphurizing iron and steel with molten calcium carbideInfo
- Publication number
- GB623966A GB623966A GB15158/47A GB1515847A GB623966A GB 623966 A GB623966 A GB 623966A GB 15158/47 A GB15158/47 A GB 15158/47A GB 1515847 A GB1515847 A GB 1515847A GB 623966 A GB623966 A GB 623966A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium carbide
- metal
- molten
- steel
- iron
- 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
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/064—Dephosphorising; Desulfurising
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
623,966. Refining metals. AIR REDUCTION CO., Inc. June 9, 1947, No. 15158. Convention date, Dec. 8, 1943. [Classes 72 and 82(i)] Iron and steel are desulphurized by confining calcium carbide in a small area on the surface of the molten metal and melting it by means of an electric arc or resistance heating so that the molten calcium carbide is introduced below the surface of the metal which is agitated. As shown, a refractory wall 7 having an opening 10 below the surface 6 of the metal in a ladle 5 has a recess 8 filled with calcium carbide which is melted by an electric arc formed between the electrodes 11. The molten calcium carbide reacts with the sulphur in the metal and rises to the surface as a slag together with any unreacted calcium carbide. The Specification as open to inspection under Sect. 91 comprises also the application of the invention to other, unspecified metals, and to the use of external heating to melt the calcium carbide. This subjectmatter does not appear in the Specification as accepted'.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US623966XA | 1943-12-08 | 1943-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB623966A true GB623966A (en) | 1949-05-25 |
Family
ID=22042207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15158/47A Expired GB623966A (en) | 1943-12-08 | 1947-06-09 | Improvements in a method for desulphurizing iron and steel with molten calcium carbide |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB623966A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE973695C (en) * | 1950-04-27 | 1960-05-05 | Union Carbide Corp | Process for the production of low-sulfur and low-phosphorus deoxidized cast iron |
| CN115505667A (en) * | 2022-09-19 | 2022-12-23 | 首钢集团有限公司 | KR powder injection molten iron pretreatment method |
-
1947
- 1947-06-09 GB GB15158/47A patent/GB623966A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE973695C (en) * | 1950-04-27 | 1960-05-05 | Union Carbide Corp | Process for the production of low-sulfur and low-phosphorus deoxidized cast iron |
| CN115505667A (en) * | 2022-09-19 | 2022-12-23 | 首钢集团有限公司 | KR powder injection molten iron pretreatment method |
| CN115505667B (en) * | 2022-09-19 | 2023-09-15 | 首钢集团有限公司 | KR powder spraying molten iron pretreatment method |
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