GB1317668A - Process of preventing or substantially reducing the reoxidation of sponge iron - Google Patents
Process of preventing or substantially reducing the reoxidation of sponge ironInfo
- Publication number
- GB1317668A GB1317668A GB3976171A GB3976171A GB1317668A GB 1317668 A GB1317668 A GB 1317668A GB 3976171 A GB3976171 A GB 3976171A GB 3976171 A GB3976171 A GB 3976171A GB 1317668 A GB1317668 A GB 1317668A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sponge iron
- reoxidation
- ammonia
- preventing
- sponge
- 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
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0086—Conditioning, transformation of reduced iron ores
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Manufacture Of Iron (AREA)
Abstract
1317668 Sponge iron METALLGESELLSCHAFT AG and STEEL CO OF CANADA Ltd 24 Aug 1971 [11 Sept 1970] 39761/71 Addition to 1297070 Heading C7D Reoxidation of sponge iron during storage or transit is prevented by passing through it air and/ or nitrogen to which ammonia has been added, preferably in a concentration of 1 to 160 gm. per standard cubic metre. The mixture may be passed through the pile of sponge at 1 to 15 cubic metres per hour per square metre of bottom surface and may be recirculated after removal of water vapour. Ammonia may be added to the gas in a mixer, or may be sprayed in liquid form on to the ore pile; the gas may be slightly pre-heated before passage through the ore.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19702045022 DE2045022A1 (en) | 1970-09-11 | 1970-09-11 | Process for preventing or reducing reoxidation of sponge iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1317668A true GB1317668A (en) | 1973-05-23 |
Family
ID=5782200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3976171A Expired GB1317668A (en) | 1970-09-11 | 1971-08-24 | Process of preventing or substantially reducing the reoxidation of sponge iron |
Country Status (7)
| Country | Link |
|---|---|
| AU (1) | AU3025471A (en) |
| BR (1) | BR7105223D0 (en) |
| DE (1) | DE2045022A1 (en) |
| GB (1) | GB1317668A (en) |
| IT (1) | IT984888B (en) |
| NL (1) | NL7110825A (en) |
| ZA (1) | ZA713750B (en) |
-
1970
- 1970-09-11 DE DE19702045022 patent/DE2045022A1/en active Pending
-
1971
- 1971-06-10 ZA ZA713750A patent/ZA713750B/en unknown
- 1971-06-21 AU AU30254/71A patent/AU3025471A/en not_active Expired
- 1971-08-05 NL NL7110825A patent/NL7110825A/xx unknown
- 1971-08-13 BR BR5223/71A patent/BR7105223D0/en unknown
- 1971-08-24 GB GB3976171A patent/GB1317668A/en not_active Expired
- 1971-09-10 IT IT28458/71A patent/IT984888B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT984888B (en) | 1974-11-20 |
| BR7105223D0 (en) | 1973-04-05 |
| SU388410A3 (en) | 1973-06-22 |
| DE2045022A1 (en) | 1972-03-16 |
| NL7110825A (en) | 1972-03-14 |
| ZA713750B (en) | 1972-02-23 |
| AU3025471A (en) | 1973-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CSNS | Application of which complete specification have been accepted and published, but patent is not sealed |