JPS5579837A - Pretreating method for mgo-containing sintering raw material - Google Patents
Pretreating method for mgo-containing sintering raw materialInfo
- Publication number
- JPS5579837A JPS5579837A JP15364178A JP15364178A JPS5579837A JP S5579837 A JPS5579837 A JP S5579837A JP 15364178 A JP15364178 A JP 15364178A JP 15364178 A JP15364178 A JP 15364178A JP S5579837 A JPS5579837 A JP S5579837A
- Authority
- JP
- Japan
- Prior art keywords
- raw material
- slag
- mgo
- iron
- mgco
- 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
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
PURPOSE: To manufacture blended raw material for sintered ore having superior thermal properties by adding MgO-contg. raw material to molten converter slag to slag the material followed by cooling, magnetic separation of iron and grain size regulation.
CONSTITUTION: 1W30Pts.wt. of a MgCO3-contg. mineral such as serpentine or dolomite are added to 100pts.wt. of molten converter slag and melted to slag the mineral. This mixed slag is cooled, solidified, coarsely crushed to about 60mm in size, and fed to a magnetic separator to remove iron contained. The iron-free slag is further crushed to 2W2.5mm in size and used as part of raw material for sintered ore of iron ore for a blast furnace. The MgCO3 in serpentine, dolomite or the like is decomposed into MgO and CO2, and it is in the form of MgO when used as raw material for sintered ore. Accordingly, no MgCO3 decomposition heat is consumed in sintering, resulting in high sintering thermal efficiency.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15364178A JPS5579837A (en) | 1978-12-14 | 1978-12-14 | Pretreating method for mgo-containing sintering raw material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15364178A JPS5579837A (en) | 1978-12-14 | 1978-12-14 | Pretreating method for mgo-containing sintering raw material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5579837A true JPS5579837A (en) | 1980-06-16 |
Family
ID=15566952
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15364178A Pending JPS5579837A (en) | 1978-12-14 | 1978-12-14 | Pretreating method for mgo-containing sintering raw material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5579837A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5891133A (en) * | 1981-11-21 | 1983-05-31 | Nippon Steel Corp | Manufacture of starting material containing iron ore for sintering |
JPH02116657A (en) * | 1988-10-25 | 1990-05-01 | Toshiba Corp | Ceramic sliding member |
WO1994014987A1 (en) * | 1992-12-24 | 1994-07-07 | Bhp Iron Ore Pty. Ltd. | Mineral processing |
-
1978
- 1978-12-14 JP JP15364178A patent/JPS5579837A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5891133A (en) * | 1981-11-21 | 1983-05-31 | Nippon Steel Corp | Manufacture of starting material containing iron ore for sintering |
JPS6017810B2 (en) * | 1981-11-21 | 1985-05-07 | 新日本製鐵株式会社 | Manufacturing method of iron ore sintered raw material |
JPH02116657A (en) * | 1988-10-25 | 1990-05-01 | Toshiba Corp | Ceramic sliding member |
WO1994014987A1 (en) * | 1992-12-24 | 1994-07-07 | Bhp Iron Ore Pty. Ltd. | Mineral processing |
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