DE1927300B2 - Verfahren zur verhinderung bzw. verringerung der reoxydation von eisenschwamm - Google Patents
Verfahren zur verhinderung bzw. verringerung der reoxydation von eisenschwammInfo
- Publication number
- DE1927300B2 DE1927300B2 DE19691927300 DE1927300A DE1927300B2 DE 1927300 B2 DE1927300 B2 DE 1927300B2 DE 19691927300 DE19691927300 DE 19691927300 DE 1927300 A DE1927300 A DE 1927300A DE 1927300 B2 DE1927300 B2 DE 1927300B2
- Authority
- DE
- Germany
- Prior art keywords
- sponge iron
- air
- bed
- nitrogen
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 60
- 229910052742 iron Inorganic materials 0.000 claims description 30
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 238000010405 reoxidation reaction Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 239000007789 gas Substances 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000010792 warming Methods 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 2
- 239000001301 oxygen Substances 0.000 claims 2
- 229910052760 oxygen Inorganic materials 0.000 claims 2
- 206010061218 Inflammation Diseases 0.000 claims 1
- IOVCWXUNBOPUCH-UHFFFAOYSA-M Nitrite anion Chemical compound [O-]N=O IOVCWXUNBOPUCH-UHFFFAOYSA-M 0.000 claims 1
- 238000013019 agitation Methods 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000011109 contamination Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 claims 1
- 230000008021 deposition Effects 0.000 claims 1
- 230000004054 inflammatory process Effects 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 239000004033 plastic Substances 0.000 claims 1
- 229920003023 plastic Polymers 0.000 claims 1
- 238000002791 soaking Methods 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B2/00—Friction-grip releasable fastenings
- F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
- F16B2/18—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using cams, levers, eccentrics, or toggles
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Organic Chemistry (AREA)
- Powder Metallurgy (AREA)
- Fertilizers (AREA)
- Drying Of Gases (AREA)
- Gas Separation By Absorption (AREA)
- Manufacture And Refinement Of Metals (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691927300 DE1927300B2 (de) | 1969-05-29 | 1969-05-29 | Verfahren zur verhinderung bzw. verringerung der reoxydation von eisenschwamm |
| AU13916/70A AU1391670A (en) | 1969-05-29 | 1970-04-15 | A process of preventing or reducing a reoxidation of sponge iron |
| GB1297070D GB1297070A (cg-RX-API-DMAC7.html) | 1969-05-29 | 1970-05-01 | |
| NL7006977A NL7006977A (cg-RX-API-DMAC7.html) | 1969-05-29 | 1970-05-14 | |
| US3704088D US3704088A (en) | 1969-05-29 | 1970-05-22 | Method of restricting oxidation of sponge iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691927300 DE1927300B2 (de) | 1969-05-29 | 1969-05-29 | Verfahren zur verhinderung bzw. verringerung der reoxydation von eisenschwamm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE1927300A1 DE1927300A1 (de) | 1970-12-03 |
| DE1927300B2 true DE1927300B2 (de) | 1973-04-12 |
Family
ID=5735474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691927300 Pending DE1927300B2 (de) | 1969-05-29 | 1969-05-29 | Verfahren zur verhinderung bzw. verringerung der reoxydation von eisenschwamm |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3704088A (cg-RX-API-DMAC7.html) |
| AU (1) | AU1391670A (cg-RX-API-DMAC7.html) |
| DE (1) | DE1927300B2 (cg-RX-API-DMAC7.html) |
| GB (1) | GB1297070A (cg-RX-API-DMAC7.html) |
| NL (1) | NL7006977A (cg-RX-API-DMAC7.html) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL47235A (en) * | 1975-05-05 | 1978-03-10 | Arie Solomon | Long term storage apparatus |
| DE2600425A1 (de) * | 1975-11-17 | 1977-05-26 | Applied Res Commodities | Terrarium |
| US4287152A (en) * | 1980-02-07 | 1981-09-01 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method of for retarding dye fading during archival storage of developed color photographic film |
| US4317797A (en) * | 1980-08-25 | 1982-03-02 | The United States Of America As Represented By The Secretary Of The Navy | Resin purger |
| GB2087053B (en) * | 1980-11-07 | 1983-11-30 | Ecobric Foundry Ltd | Apparatus for hot briquetting of ferrous or non-ferrous metallic particles |
| BR112013005714A2 (pt) | 2010-09-10 | 2016-05-03 | Nu Iron Technology Inc | método para fabricar ferro reduzido direto (dri) processado, e, material de ferro reduzido direto (dri) processado |
-
1969
- 1969-05-29 DE DE19691927300 patent/DE1927300B2/de active Pending
-
1970
- 1970-04-15 AU AU13916/70A patent/AU1391670A/en not_active Expired
- 1970-05-01 GB GB1297070D patent/GB1297070A/en not_active Expired
- 1970-05-14 NL NL7006977A patent/NL7006977A/xx unknown
- 1970-05-22 US US3704088D patent/US3704088A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE1927300A1 (de) | 1970-12-03 |
| GB1297070A (cg-RX-API-DMAC7.html) | 1972-11-22 |
| US3704088A (en) | 1972-11-28 |
| AU1391670A (en) | 1971-11-11 |
| NL7006977A (cg-RX-API-DMAC7.html) | 1970-12-01 |
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