JPS5742546A - Preparation of magnetite from iron slag - Google Patents
Preparation of magnetite from iron slagInfo
- Publication number
- JPS5742546A JPS5742546A JP11609580A JP11609580A JPS5742546A JP S5742546 A JPS5742546 A JP S5742546A JP 11609580 A JP11609580 A JP 11609580A JP 11609580 A JP11609580 A JP 11609580A JP S5742546 A JPS5742546 A JP S5742546A
- Authority
- JP
- Japan
- Prior art keywords
- iron slag
- magnetite
- boric acid
- feo
- air
- 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
Landscapes
- Compounds Of Iron (AREA)
Abstract
PURPOSE: To prepare magnetite readily in air, by adding boric acid to an iron slag, and calcining the resultant mixture at a specific temperature or above.
CONSTITUTION: Boric acid is added to an iron slag, and the resultant mixture is then calcined at 600°C or above in air to melt the boric acid. The melten boric acid forms a film on the surface of the iron slag to prevent the oxidation of FeO by air, and FeO is reacted with Fe2O3 in the iron slag to synthesize magnetite. The iron slag preferably contains a large amount of FeO.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11609580A JPS5946891B2 (en) | 1980-08-23 | 1980-08-23 | Method for producing magnetite from iron ore slag |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11609580A JPS5946891B2 (en) | 1980-08-23 | 1980-08-23 | Method for producing magnetite from iron ore slag |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5742546A true JPS5742546A (en) | 1982-03-10 |
JPS5946891B2 JPS5946891B2 (en) | 1984-11-15 |
Family
ID=14678576
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11609580A Expired JPS5946891B2 (en) | 1980-08-23 | 1980-08-23 | Method for producing magnetite from iron ore slag |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5946891B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6164886A (en) * | 1984-09-05 | 1986-04-03 | Nichijiyuu Res Center:Kk | Manufacture of magnetic material from low-grade substance containing mn |
CN106745318A (en) * | 2016-11-28 | 2017-05-31 | 东北大学 | A kind of method of use iron vitriol slag one-step synthesis magnetic ferroferric oxide |
-
1980
- 1980-08-23 JP JP11609580A patent/JPS5946891B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6164886A (en) * | 1984-09-05 | 1986-04-03 | Nichijiyuu Res Center:Kk | Manufacture of magnetic material from low-grade substance containing mn |
CN106745318A (en) * | 2016-11-28 | 2017-05-31 | 东北大学 | A kind of method of use iron vitriol slag one-step synthesis magnetic ferroferric oxide |
Also Published As
Publication number | Publication date |
---|---|
JPS5946891B2 (en) | 1984-11-15 |
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