GB518570A - Improvements in or relating to the treatment of alloy steel scrap - Google Patents
Improvements in or relating to the treatment of alloy steel scrapInfo
- Publication number
- GB518570A GB518570A GB1938138A GB1938138A GB518570A GB 518570 A GB518570 A GB 518570A GB 1938138 A GB1938138 A GB 1938138A GB 1938138 A GB1938138 A GB 1938138A GB 518570 A GB518570 A GB 518570A
- Authority
- GB
- United Kingdom
- Prior art keywords
- steel scrap
- nickel
- low
- metals
- alloy steel
- 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
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/56—Manufacture of steel by other methods
- C21C5/562—Manufacture of steel by other methods starting from scrap
-
- 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
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
518,570. Alloys. STERN, H. June 30, 1938, No. 19381. [Class 82 (i)] Alloy steel scrap containing one or more of the metals chromium, molybdenum, tungsten, and vanadium, with or without nickel, is treated to obtain on the one hand an iron alloy containing the nickel, if present, but free from or low in the other metals, and on the other hand a product free from or low in nickel but containing oxides of the other metals, by treating the molten alloy with oxygen or oxides or both in the presence of acid substances such as silica or of bases such as lime or sodium carbonate. The process is applicable, for example, to austenitic stainless steel scrap, and may be carried out in a converter, or in a low-frequency or twofrequency induction furnace. The slags obtained may be utilized for the production of alloys such as ferro-chrome-silicon, or of chromates or chromic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1938138A GB518570A (en) | 1938-06-30 | 1938-06-30 | Improvements in or relating to the treatment of alloy steel scrap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1938138A GB518570A (en) | 1938-06-30 | 1938-06-30 | Improvements in or relating to the treatment of alloy steel scrap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB518570A true GB518570A (en) | 1940-03-01 |
Family
ID=10128403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1938138A Expired GB518570A (en) | 1938-06-30 | 1938-06-30 | Improvements in or relating to the treatment of alloy steel scrap |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB518570A (en) |
-
1938
- 1938-06-30 GB GB1938138A patent/GB518570A/en not_active Expired
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