GB2017758A - Process for the manufacture of sponge iron - Google Patents
Process for the manufacture of sponge ironInfo
- Publication number
- GB2017758A GB2017758A GB7907129A GB7907129A GB2017758A GB 2017758 A GB2017758 A GB 2017758A GB 7907129 A GB7907129 A GB 7907129A GB 7907129 A GB7907129 A GB 7907129A GB 2017758 A GB2017758 A GB 2017758A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- sponge iron
- pellets
- manufacture
- reducing atmosphere
- 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.)
- Granted
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 8
- 229910052742 iron Inorganic materials 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000008188 pellet Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 229960005191 ferric oxide Drugs 0.000 abstract 1
- 238000005098 hot rolling Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 1
- 235000013980 iron oxide Nutrition 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 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
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
- C21B13/146—Multi-step reduction without melting
-
- 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)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture Of Iron (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A process for manufacturing sponge iron includes the steps of crushing iron-oxide-containing scales produced during hot-rolling of iron products, separating non- ferrous impurities from the scales magnetically and adding up to 3% by weight of powdered carbon to facilitate the subsequent formation of the crushed material into pellets. The pellets are heated in a reducing atmosphere to 650 DEG C for about one hour and to 900 DEG C to 1100 DEG C for a further hour and cooled, still in a reducing atmosphere, to form sponge iron.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT6752278A IT1111614B (en) | 1978-03-10 | 1978-03-10 | PROCESS FOR TRANSFORING IN VIEW OF A NEXT INDUSTRIAL USE OF FLAKES OBTAINED AS WASTE IN LAMINATION OPERATIONS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2017758A true GB2017758A (en) | 1979-10-10 |
| GB2017758B GB2017758B (en) | 1982-09-02 |
Family
ID=11303135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7907129A Expired GB2017758B (en) | 1978-03-10 | 1979-02-28 | Process for the manufacture of sponge iron |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2907537A1 (en) |
| FR (1) | FR2419327A1 (en) |
| GB (1) | GB2017758B (en) |
| IT (1) | IT1111614B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1119296B (en) * | 1979-06-25 | 1986-03-10 | Fiat Ricerche | PROCEDURE FOR THE PRODUCTION OF IRON POWDER |
| GB2324081A (en) * | 1997-04-07 | 1998-10-14 | Heckett Multiserv Plc | Additives for Electric Arc Furnace |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB205150A (en) * | 1922-06-28 | 1923-09-28 | Octave Dony | Improved process for reducing iron ores |
| US2759808A (en) * | 1952-12-10 | 1956-08-21 | Wood Steel Co Alan | Process of production of iron powder |
| US3894865A (en) * | 1970-07-10 | 1975-07-15 | Wienert Fritz Otto | Production of metallurgical pellets in rotary kilns |
| US3870507A (en) * | 1973-05-14 | 1975-03-11 | Ferro Carb Agglomeration | Control of pollution by recycling solid particulate steel mill wastes |
| LU70523A1 (en) * | 1974-07-12 | 1976-05-31 | ||
| FR2366364A1 (en) * | 1976-02-03 | 1978-04-28 | Cefilac | SOLID METHOD FOR MANUFACTURING STEEL PRODUCTS |
-
1978
- 1978-03-10 IT IT6752278A patent/IT1111614B/en active
-
1979
- 1979-02-26 DE DE19792907537 patent/DE2907537A1/en not_active Ceased
- 1979-02-28 GB GB7907129A patent/GB2017758B/en not_active Expired
- 1979-03-09 FR FR7906157A patent/FR2419327A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB2017758B (en) | 1982-09-02 |
| IT7867522A0 (en) | 1978-03-10 |
| FR2419327A1 (en) | 1979-10-05 |
| DE2907537A1 (en) | 1979-09-13 |
| FR2419327B1 (en) | 1981-03-27 |
| IT1111614B (en) | 1986-01-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |