JPS6445718A - Production of calcium carbonate fine powder - Google Patents
Production of calcium carbonate fine powderInfo
- Publication number
- JPS6445718A JPS6445718A JP20169087A JP20169087A JPS6445718A JP S6445718 A JPS6445718 A JP S6445718A JP 20169087 A JP20169087 A JP 20169087A JP 20169087 A JP20169087 A JP 20169087A JP S6445718 A JPS6445718 A JP S6445718A
- Authority
- JP
- Japan
- Prior art keywords
- calcium carbonate
- converter
- water
- fine powder
- slag
- 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
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
PURPOSE:To enable inexpensive production in manufacturing of introducing a CO2 gas to slurry of slaked lime, by using slag of a converter as a raw material. CONSTITUTION:A CO2 gas is bubbled in cooling water which is obtained by sprinkling water upon high-temperature molten slag of a converter or collected by spraying warm water upon cooled slag of a converter to calcium carbonate fine powder. Slag of a converter has high CaO content, the cooling water is water of high pH, the high pH is neutralized by introducing the CO2 gas to the cooling water and this production is advantageous with respect to a countermeasure for waste water. An exhaust gas containing CO2 can be used in bubbling. By this method, calcium carbonate fine powder having particle size of submicron, similar to calcium carbonate obtained by pulverizing lime stone, can be produced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20169087A JPS6445718A (en) | 1987-08-14 | 1987-08-14 | Production of calcium carbonate fine powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20169087A JPS6445718A (en) | 1987-08-14 | 1987-08-14 | Production of calcium carbonate fine powder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6445718A true JPS6445718A (en) | 1989-02-20 |
Family
ID=16445288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20169087A Pending JPS6445718A (en) | 1987-08-14 | 1987-08-14 | Production of calcium carbonate fine powder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6445718A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000041665A (en) * | 1998-12-23 | 2000-07-15 | 이구택 | Seasoning method of electric furnace slag with hot carbonated water |
KR20000042037A (en) * | 1998-12-24 | 2000-07-15 | 이구택 | Method of neutralizing waste water generating in aging treatment of electric furnace slag using carbon dioxide gas |
KR100476811B1 (en) * | 2000-12-21 | 2005-03-17 | 주식회사 포스코 | A pretreatment method of steel slag by using carbon dioxide |
KR100590994B1 (en) * | 2004-09-08 | 2006-06-19 | 재단법인 포항산업과학연구원 | The method for aging a steel making slag |
KR100821045B1 (en) * | 2001-10-17 | 2008-04-08 | 주식회사 포스코 | method of preventing a hydration for BOF slag |
-
1987
- 1987-08-14 JP JP20169087A patent/JPS6445718A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20000041665A (en) * | 1998-12-23 | 2000-07-15 | 이구택 | Seasoning method of electric furnace slag with hot carbonated water |
KR20000042037A (en) * | 1998-12-24 | 2000-07-15 | 이구택 | Method of neutralizing waste water generating in aging treatment of electric furnace slag using carbon dioxide gas |
KR100476811B1 (en) * | 2000-12-21 | 2005-03-17 | 주식회사 포스코 | A pretreatment method of steel slag by using carbon dioxide |
KR100821045B1 (en) * | 2001-10-17 | 2008-04-08 | 주식회사 포스코 | method of preventing a hydration for BOF slag |
KR100590994B1 (en) * | 2004-09-08 | 2006-06-19 | 재단법인 포항산업과학연구원 | The method for aging a steel making slag |
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