GB1413346A - Methods of producing hardened agglomerates - Google Patents
Methods of producing hardened agglomeratesInfo
- Publication number
- GB1413346A GB1413346A GB4340973A GB4340973A GB1413346A GB 1413346 A GB1413346 A GB 1413346A GB 4340973 A GB4340973 A GB 4340973A GB 4340973 A GB4340973 A GB 4340973A GB 1413346 A GB1413346 A GB 1413346A
- Authority
- GB
- United Kingdom
- Prior art keywords
- agglomerates
- iron ore
- furnace
- dust
- charging
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- 239000000428 dust Substances 0.000 abstract 3
- 229910052742 iron Inorganic materials 0.000 abstract 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 2
- 239000007767 bonding agent Substances 0.000 abstract 2
- 239000003575 carbonaceous material Substances 0.000 abstract 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 1
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 1
- 239000000654 additive Substances 0.000 abstract 1
- 230000032683 aging Effects 0.000 abstract 1
- 150000001339 alkali metal compounds Chemical class 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract 1
- 239000003245 coal Substances 0.000 abstract 1
- 239000000571 coke Substances 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 150000004679 hydroxides Chemical class 0.000 abstract 1
- 229910052745 lead Inorganic materials 0.000 abstract 1
- 239000004571 lime Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 239000002893 slag Substances 0.000 abstract 1
- 238000009628 steelmaking Methods 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
- 229910052725 zinc Inorganic materials 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
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
-
- 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)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1413346 Iron ore agglomerates MICHIGAN TECHNOLOGICAL UNIVERSITY BOARD OF CONTROL 15 Sept 1973 43409/73 Heading C1A [Also in Division C7] In the preparation of hardened agglomerates for charging to steel making furnaces, a moistened mixture of Zn-rich iron ore dust (e.g. BOF dust), a particulate carbonaceous material (e.g. coke, coal), and a bonding agent is aged to hydrate the overburnt lime and/or slag present in the iron ore dust, agglomerated, e.g. by a pelletizer, and cured to produce hardened agglomerates. The curing is preferably carried out in an autoclave, the agglomerates heated by superheated steam at a temperature less than the combustion temperature of the carbonaceous material. From there, the agglomerates may be charged direct to a basic oxygen furnace, or to a shaft furnace operating at 1900-2400 F. when Zn and Pb are volatilized and iron oxide is metallized, the agglomerates then being suitable for charging to a blast furnace or electric furnace. Suitable bonding agents are the oxides, hydroxides and carbonates of Ca and Mg, preferably CaO and Ca(OH) 2 . The agglomerates may include strengthening additives, e.g. alkali metal compounds, preferably NaOH, Na 2 CO 3 , NaHCO 3 , or siliceous materials, e.g. quartz and silica sand. The aging may take place in a moist atmosphere at 175-195 F.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4340973A GB1413346A (en) | 1973-09-15 | 1973-09-15 | Methods of producing hardened agglomerates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4340973A GB1413346A (en) | 1973-09-15 | 1973-09-15 | Methods of producing hardened agglomerates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1413346A true GB1413346A (en) | 1975-11-12 |
Family
ID=10428631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4340973A Expired GB1413346A (en) | 1973-09-15 | 1973-09-15 | Methods of producing hardened agglomerates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1413346A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199349A (en) * | 1976-09-13 | 1980-04-22 | British Steel Corporation | Production of sponge iron |
| US4491470A (en) * | 1982-06-05 | 1985-01-01 | Klockner-Humboldt-Deutz Ag | Method for separating non-ferrous metals from ferruginous secondary substances |
| WO2002075009A1 (en) * | 2001-03-20 | 2002-09-26 | Startec Iron, Llc | Method for curing self-reducing agglomerates |
-
1973
- 1973-09-15 GB GB4340973A patent/GB1413346A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199349A (en) * | 1976-09-13 | 1980-04-22 | British Steel Corporation | Production of sponge iron |
| US4491470A (en) * | 1982-06-05 | 1985-01-01 | Klockner-Humboldt-Deutz Ag | Method for separating non-ferrous metals from ferruginous secondary substances |
| WO2002075009A1 (en) * | 2001-03-20 | 2002-09-26 | Startec Iron, Llc | Method for curing self-reducing agglomerates |
| US6565623B2 (en) | 2001-03-20 | 2003-05-20 | Startec Iron Llc | Method and apparatus for curing self-reducing agglomerates |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3770416A (en) | Treatment of zinc rich steel mill dusts for reuse in steel making processes | |
| GB2044235A (en) | Process for producing metallized iron pellets | |
| US3313617A (en) | Iron-containing flux material for steel-making process | |
| US3894865A (en) | Production of metallurgical pellets in rotary kilns | |
| US3311465A (en) | Iron-containing flux material for steel making process | |
| GB1413346A (en) | Methods of producing hardened agglomerates | |
| US4528029A (en) | Self-reducing iron oxide agglomerates | |
| US3153586A (en) | Slag coated ore compacts and process for making the same | |
| GB1294931A (en) | ||
| GB1514363A (en) | Method of processing dusty material from metallurgical waste gases | |
| EP0044669A1 (en) | Self-reducing iron oxide agglomerates | |
| GB1474624A (en) | Process for producing metal from metal oxide pellets in a cupola vessel | |
| JPS55125211A (en) | Processing method of steel-making dust containing zinc and blast furnace gas ash | |
| US3083090A (en) | Production of sinter | |
| US3942977A (en) | Process for making iron or steel utilizing lithium containing material as auxiliary slag formers | |
| KR910010056B1 (en) | Making process for the pellet of cr ore | |
| JPS61243132A (en) | Binder for starting material to be sintered | |
| GB957094A (en) | Method for producing high-alumina slag in the blast furnace | |
| US3304168A (en) | System for producing carbonized and prereduced iron ore pellets | |
| GB1532969A (en) | Process for the direct reduction of iron oxide-containing materials in a rotary kiln | |
| US3864120A (en) | Stabilized burnt lime product and process | |
| GB1463477A (en) | Agglomeration of steel plant waste products | |
| SU699027A2 (en) | Method of producijg fluxed raw material | |
| JPS60184644A (en) | Treating device for dust and sludge | |
| Yatsunami et al. | Method for Recovering Useful Metals from Dust Discharged from Metal Refining Metallurgical Furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |