GB1112583A - Process of producing high-strength ore pellets - Google Patents
Process of producing high-strength ore pelletsInfo
- Publication number
- GB1112583A GB1112583A GB32797/65A GB3279765A GB1112583A GB 1112583 A GB1112583 A GB 1112583A GB 32797/65 A GB32797/65 A GB 32797/65A GB 3279765 A GB3279765 A GB 3279765A GB 1112583 A GB1112583 A GB 1112583A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prefired
- ore
- pellets
- produced
- pelletized
- 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
- 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
- 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
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
High strength ore pellets are produced by a process in which the ore to be pelletized is mixed with 10 to 50% (by weight based on the dry weight of the resulting mixture) of prefired ore. The proportion of prefired ore in the pellets may be higher in the outer zone than in the interior of the pellets and the pellets may consist of a core free of prefired material and a plurality of shells containing increasing proportions of prefired material. The prefired material may be produced by subjecting sintered pellets to a stress which is sufficiently high to produce the required amount of prefired material in the form of abraded material and broken pellets, or it may be produced in a down-draught sintering plant. Alternatively, fine grained ore may be heated to a temperature in or slightly below its sintering temperature range whilst maintaining its particle size and added to the crude material to be pelletized or the material which is admixed with the ore may be prefired under reducing conditions to give a prereduced prefired product. Examples relate to the products of pelletized iron ore.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DESCH35572A DE1210017B (en) | 1964-08-01 | 1964-08-01 | Method of making solid ore pellets |
DESCH36747A DE1214257B (en) | 1965-03-22 | 1965-03-22 | Method of making solid ore pellets |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1112583A true GB1112583A (en) | 1968-05-08 |
Family
ID=25993205
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB32797/65A Expired GB1112583A (en) | 1964-08-01 | 1965-07-30 | Process of producing high-strength ore pellets |
Country Status (3)
Country | Link |
---|---|
US (1) | US3433625A (en) |
GB (1) | GB1112583A (en) |
NL (1) | NL144330B (en) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2543898A (en) * | 1946-06-10 | 1951-03-06 | Erie Mining Co | Pelletizing ore fines |
US2799572A (en) * | 1953-04-03 | 1957-07-16 | Cleveland Cliffs Iron | Iron ore pelletizing process and product |
US2750273A (en) * | 1953-07-02 | 1956-06-12 | Allis Chalmers Mfg Co | Method of heat hardening iron ore pellets containing fuel |
US3083090A (en) * | 1958-09-22 | 1963-03-26 | United Steel Companies Ltd | Production of sinter |
US3003864A (en) * | 1959-12-16 | 1961-10-10 | Bethlehem Steel Corp | Method of sintering |
US3134667A (en) * | 1960-02-05 | 1964-05-26 | Inland Steel Co | Pelletizing of iron ore for sintering |
-
1965
- 1965-07-28 NL NL656509746A patent/NL144330B/en unknown
- 1965-07-30 GB GB32797/65A patent/GB1112583A/en not_active Expired
-
1967
- 1967-09-14 US US667867A patent/US3433625A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
NL144330B (en) | 1974-12-16 |
US3433625A (en) | 1969-03-18 |
NL6509746A (en) | 1966-02-02 |
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