SE433946B - Forfarande samt anordning for behandling av jernsvamp till skydd mot ateroxidation och/eller korrosion vid lagring och transport - Google Patents
Forfarande samt anordning for behandling av jernsvamp till skydd mot ateroxidation och/eller korrosion vid lagring och transportInfo
- Publication number
- SE433946B SE433946B SE7808934A SE7808934A SE433946B SE 433946 B SE433946 B SE 433946B SE 7808934 A SE7808934 A SE 7808934A SE 7808934 A SE7808934 A SE 7808934A SE 433946 B SE433946 B SE 433946B
- Authority
- SE
- Sweden
- Prior art keywords
- dust
- iron
- mixture
- particles
- coating
- Prior art date
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 127
- 229910052742 iron Inorganic materials 0.000 title claims description 62
- 238000000034 method Methods 0.000 title claims description 27
- 238000005260 corrosion Methods 0.000 title claims description 7
- 230000007797 corrosion Effects 0.000 title claims description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 66
- 238000000576 coating method Methods 0.000 claims description 55
- 239000011248 coating agent Substances 0.000 claims description 54
- 239000002245 particle Substances 0.000 claims description 52
- 239000000203 mixture Substances 0.000 claims description 44
- 239000000292 calcium oxide Substances 0.000 claims description 33
- 235000012255 calcium oxide Nutrition 0.000 claims description 33
- 239000000428 dust Substances 0.000 claims description 28
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 24
- 235000013980 iron oxide Nutrition 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 claims description 22
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 8
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 8
- 230000036571 hydration Effects 0.000 claims description 8
- 238000006703 hydration reaction Methods 0.000 claims description 8
- 239000004571 lime Substances 0.000 claims description 8
- 238000009736 wetting Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000001464 adherent effect Effects 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 5
- YOBAEOGBNPPUQV-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe].[Fe] YOBAEOGBNPPUQV-UHFFFAOYSA-N 0.000 claims description 4
- 238000005453 pelletization Methods 0.000 claims description 4
- 239000000654 additive Substances 0.000 claims description 2
- 239000003595 mist Substances 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 241000233866 Fungi Species 0.000 claims 8
- 238000007599 discharging Methods 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 238000001465 metallisation Methods 0.000 description 6
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 4
- 239000012256 powdered iron Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000002161 passivation Methods 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000010405 reoxidation reaction Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
-
- 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
-
- 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
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
- Y10T428/2991—Coated
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
- Manufacture Of Iron (AREA)
- Glanulating (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Compounds Of Iron (AREA)
- Chemical Treatment Of Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT617477A AT350600B (de) | 1977-08-25 | 1977-08-25 | Verfahren zur behandlung von eisenschwamm zum verhindern der reoxidation und vorrichtung zur durchfuehrung dieses verfahrens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7808934L SE7808934L (sv) | 1979-02-26 |
| SE433946B true SE433946B (sv) | 1984-06-25 |
Family
ID=3583629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7808934A SE433946B (sv) | 1977-08-25 | 1978-08-24 | Forfarande samt anordning for behandling av jernsvamp till skydd mot ateroxidation och/eller korrosion vid lagring och transport |
Country Status (24)
| Country | Link |
|---|---|
| US (1) | US4254167A (de) |
| JP (1) | JPS583003B2 (de) |
| AR (1) | AR215736A1 (de) |
| AT (1) | AT350600B (de) |
| AU (1) | AU505111B1 (de) |
| BE (1) | BE869717A (de) |
| BR (1) | BR7805479A (de) |
| CA (1) | CA1124141A (de) |
| DE (1) | DE2829924C3 (de) |
| ES (1) | ES472851A1 (de) |
| FR (1) | FR2401227A1 (de) |
| GB (1) | GB2003057B (de) |
| GR (1) | GR64997B (de) |
| IN (1) | IN149510B (de) |
| IT (1) | IT1107690B (de) |
| LU (1) | LU80146A1 (de) |
| MY (1) | MY8300179A (de) |
| NL (1) | NL7807751A (de) |
| NO (1) | NO148961C (de) |
| OA (1) | OA06172A (de) |
| SE (1) | SE433946B (de) |
| TR (1) | TR20387A (de) |
| ZA (1) | ZA783925B (de) |
| ZM (1) | ZM6678A1 (de) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5591691A (en) * | 1978-12-29 | 1980-07-11 | Silver Seiko Ltd | Typewriter |
| AT367097B (de) * | 1980-06-11 | 1982-05-25 | Voest Alpine Ag | Verfahren zum behandeln von metallischen huetteneinsatzstoffen, insbesondere eisenschwammteilchen |
| AT367804B (de) * | 1980-10-01 | 1982-08-10 | Voest Alpine Ag | Verfahren zur behandlung von eisenschwamm |
| US4388116A (en) * | 1981-08-04 | 1983-06-14 | Hylsa, S.A. | Passivation of sponge iron |
| US4559269A (en) * | 1984-04-13 | 1985-12-17 | Mcgean-Rohco, Inc. | Composite puffed borax particles |
| US4751098A (en) * | 1986-07-22 | 1988-06-14 | Westinghouse Electric Corp. | Reoxidation of partially oxidizable powders |
| JPH025928U (de) * | 1988-06-23 | 1990-01-16 | ||
| US5181954A (en) * | 1991-01-14 | 1993-01-26 | Hylsa S.A. De C.V. | Method for coating iron-bearing particles to be processed in a direct reduction process |
| US6506231B2 (en) | 1996-03-15 | 2003-01-14 | Kabushiki Kaisha Kobe Seiko Sho | Method and apparatus for making metallic iron |
| IL120440A0 (en) * | 1996-03-15 | 1997-07-13 | Kobe Steel Ltd | Method and apparatus for making metallic iron |
| JP2002294318A (ja) * | 2001-04-02 | 2002-10-09 | Nippon Steel Corp | 還元ペレットの屋外貯蔵方法 |
| JP2002363625A (ja) * | 2001-06-05 | 2002-12-18 | Kobe Steel Ltd | 表面被覆還元鉄、その製造方法および溶解方法 |
| KR20130105654A (ko) | 2010-09-10 | 2013-09-25 | 누-아이론 테크놀로지, 엘엘씨 | 처리된 dri 재료 |
| DE102021115807A1 (de) | 2021-06-18 | 2022-12-22 | Thyssenkrupp Steel Europe Ag | Verfahren zum Behandeln von Eisenschwamm |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1184364B (de) * | 1956-06-01 | 1964-12-31 | United States Steel Corp | Verfahren zum Herstellen von als Ersatz fuer Schrotteisen bei der Stahlerzeugung dienenden, metallisches Eisen enthaltenden Agglomeraten |
| US2871115A (en) * | 1956-06-01 | 1959-01-27 | United States Steel Corp | Method of preparing self-fluxing synthetic iron scrap |
| GB833016A (en) * | 1956-06-01 | 1960-04-21 | United States Steel Corp | Self-fluxing synthetic iron scrap and method of preparing the same |
| US3185563A (en) * | 1961-05-17 | 1965-05-25 | R N Corp | Method and means for prevention of reoxidation of iron concentrates and the like |
| FR1432307A (fr) * | 1965-05-05 | 1966-03-18 | R N Corp | Briquette en fer pulvérulent comprimé et son procédé de fabrication |
| US3479232A (en) * | 1966-09-20 | 1969-11-18 | Exxon Research Engineering Co | Passivation of metals |
| DE1533875A1 (de) * | 1967-05-09 | 1970-02-05 | Schenck Dr Ing Dr Ing E H Herm | Vor Rueckoxydation geschuetzte Eisenschwammstuecke,insbesondere Pellets |
| US3549425A (en) * | 1968-01-10 | 1970-12-22 | Exxon Research Engineering Co | Passivation of metals |
| US3617394A (en) * | 1968-11-22 | 1971-11-02 | Exxon Research Engineering Co | Kiln passivation of reduced ores |
| DE1940767A1 (de) * | 1969-08-11 | 1972-02-10 | Oswald Werner Leodegar Dr Phil | Schutz von Eisenschwammpellets vor Rueckoxidation |
| US3690930A (en) * | 1970-07-13 | 1972-09-12 | Exxon Research Engineering Co | Method of protecting reduced iron ore by coating |
| DE2061346C3 (de) * | 1970-12-12 | 1974-10-10 | Huettenwerk Oberhausen Ag, 4200 Oberhausen | Verfahren zur Vorbereitung von Eisenerzpellets zur Direktreduktion im Fest- und Wanderbett |
| DE2306647A1 (de) * | 1973-02-10 | 1974-08-15 | Werner Wenzel | Verfahren zum einschmelzen von eisenschwamm |
| US4075370A (en) * | 1976-04-28 | 1978-02-21 | Ogden Metals, Inc. | Passivating metallic cuttings and turnings |
| US4032352A (en) * | 1976-05-03 | 1977-06-28 | Midrex Corporation | Binder composition |
-
1977
- 1977-08-25 AT AT617477A patent/AT350600B/de not_active IP Right Cessation
-
1978
- 1978-07-04 GR GR56682A patent/GR64997B/el unknown
- 1978-07-07 DE DE2829924A patent/DE2829924C3/de not_active Expired
- 1978-07-07 ZA ZA00783925A patent/ZA783925B/xx unknown
- 1978-07-10 IN IN762/CAL/78A patent/IN149510B/en unknown
- 1978-07-14 US US05/924,565 patent/US4254167A/en not_active Expired - Lifetime
- 1978-07-20 NL NL7807751A patent/NL7807751A/xx not_active Application Discontinuation
- 1978-07-21 ZM ZM66/78A patent/ZM6678A1/xx unknown
- 1978-08-11 IT IT50713/78A patent/IT1107690B/it active
- 1978-08-11 BE BE189871A patent/BE869717A/xx unknown
- 1978-08-16 TR TR20387A patent/TR20387A/xx unknown
- 1978-08-22 GB GB7834130A patent/GB2003057B/en not_active Expired
- 1978-08-23 CA CA309,919A patent/CA1124141A/en not_active Expired
- 1978-08-23 FR FR7824463A patent/FR2401227A1/fr active Granted
- 1978-08-23 OA OA56588A patent/OA06172A/xx unknown
- 1978-08-23 LU LU80146A patent/LU80146A1/xx unknown
- 1978-08-24 SE SE7808934A patent/SE433946B/sv not_active IP Right Cessation
- 1978-08-24 BR BR7805479A patent/BR7805479A/pt unknown
- 1978-08-24 AR AR273420A patent/AR215736A1/es active
- 1978-08-24 NO NO782883A patent/NO148961C/no unknown
- 1978-08-24 AU AU39207/78A patent/AU505111B1/en not_active Expired
- 1978-08-25 ES ES472851A patent/ES472851A1/es not_active Expired
- 1978-08-25 JP JP53103732A patent/JPS583003B2/ja not_active Expired
-
1983
- 1983-12-30 MY MY179/83A patent/MY8300179A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ZA783925B (en) | 1979-11-28 |
| SE7808934L (sv) | 1979-02-26 |
| CA1124141A (en) | 1982-05-25 |
| IN149510B (de) | 1982-01-02 |
| US4254167A (en) | 1981-03-03 |
| DE2829924B2 (de) | 1980-08-28 |
| GB2003057A (en) | 1979-03-07 |
| ES472851A1 (es) | 1979-03-16 |
| JPS583003B2 (ja) | 1983-01-19 |
| FR2401227B1 (de) | 1982-03-05 |
| NL7807751A (nl) | 1979-02-27 |
| ZM6678A1 (en) | 1979-06-21 |
| OA06172A (fr) | 1981-06-30 |
| ATA617477A (de) | 1978-11-15 |
| FR2401227A1 (fr) | 1979-03-23 |
| NO148961B (no) | 1983-10-10 |
| LU80146A1 (de) | 1979-01-19 |
| MY8300179A (en) | 1983-12-31 |
| IT7850713A0 (it) | 1978-08-11 |
| GB2003057B (en) | 1982-02-24 |
| JPS5445609A (en) | 1979-04-11 |
| AT350600B (de) | 1979-06-11 |
| AR215736A1 (es) | 1979-10-31 |
| IT1107690B (it) | 1985-11-25 |
| NO782883L (no) | 1979-02-27 |
| GR64997B (en) | 1980-06-11 |
| DE2829924C3 (de) | 1985-11-14 |
| AU505111B1 (en) | 1979-11-08 |
| TR20387A (tr) | 1981-05-18 |
| BR7805479A (pt) | 1979-05-02 |
| DE2829924A1 (de) | 1979-03-08 |
| BE869717A (fr) | 1978-12-01 |
| NO148961C (no) | 1984-01-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
Ref document number: 7808934-9 Effective date: 19910315 Format of ref document f/p: F |