JPS52114495A - Production of ii type anhydrous gypsum with high strength - Google Patents
Production of ii type anhydrous gypsum with high strengthInfo
- Publication number
- JPS52114495A JPS52114495A JP2985676A JP2985676A JPS52114495A JP S52114495 A JPS52114495 A JP S52114495A JP 2985676 A JP2985676 A JP 2985676A JP 2985676 A JP2985676 A JP 2985676A JP S52114495 A JPS52114495 A JP S52114495A
- Authority
- JP
- Japan
- Prior art keywords
- production
- anhydrous gypsum
- high strength
- type anhydrous
- gypsum
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F11/00—Compounds of calcium, strontium, or barium
- C01F11/46—Sulfates
- C01F11/466—Conversion of one form of calcium sulfate to another
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
PURPOSE: To produce II type anhydrous gypsum from which a molded product with high hydraulicity and strength is obtianable, by kneading phosphoric acid by-product gypsum with a specific amount of mineral acids or acidic salts of mineral acids and burning the kneaded product.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2985676A JPS52114495A (en) | 1976-03-22 | 1976-03-22 | Production of ii type anhydrous gypsum with high strength |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2985676A JPS52114495A (en) | 1976-03-22 | 1976-03-22 | Production of ii type anhydrous gypsum with high strength |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS52114495A true JPS52114495A (en) | 1977-09-26 |
Family
ID=12287598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2985676A Pending JPS52114495A (en) | 1976-03-22 | 1976-03-22 | Production of ii type anhydrous gypsum with high strength |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52114495A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2470401A (en) * | 2009-05-22 | 2010-11-24 | Bpb Ltd | Calcium sulphate-based products having enhanced water resistance |
-
1976
- 1976-03-22 JP JP2985676A patent/JPS52114495A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2470401A (en) * | 2009-05-22 | 2010-11-24 | Bpb Ltd | Calcium sulphate-based products having enhanced water resistance |
WO2010133898A1 (en) | 2009-05-22 | 2010-11-25 | Bpb Limited | Calcium sulphate-based products having enhanced water resistance |
US9127166B2 (en) | 2009-05-22 | 2015-09-08 | Bpb Limited | Calcium sulphate-based products having enhanced water resistance |
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