DK131772B - Process for the production of alpha-semi-hydrate gypsum. - Google Patents
Process for the production of alpha-semi-hydrate gypsum.Info
- Publication number
- DK131772B DK131772B DK288669A DK288669A DK131772B DK 131772 B DK131772 B DK 131772B DK 288669 A DK288669 A DK 288669A DK 288669 A DK288669 A DK 288669A DK 131772 B DK131772 B DK 131772B
- Authority
- DK
- Denmark
- Prior art keywords
- alpha
- semi
- production
- hydrate gypsum
- gypsum
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B11/00—Calcium sulfate cements
- C04B11/02—Methods and apparatus for dehydrating gypsum
- C04B11/024—Ingredients added before, or during, the calcining process, e.g. calcination modifiers
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2549568A GB1262083A (en) | 1968-05-28 | 1968-05-28 | alpha-CALCIUM SULPHATE HEMIHYDRATE |
Publications (2)
Publication Number | Publication Date |
---|---|
DK131772B true DK131772B (en) | 1975-09-01 |
DK131772C DK131772C (en) | 1976-02-02 |
Family
ID=10228621
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK288669A DK131772C (en) | 1968-05-28 | 1969-05-28 | PROCEDURE FOR MANUFACTURE OF ALFA SEMIHYDRATE PLASTER |
Country Status (10)
Country | Link |
---|---|
BE (1) | BE733737A (en) |
DE (1) | DE1927015B2 (en) |
DK (1) | DK131772C (en) |
FR (1) | FR1599625A (en) |
GB (1) | GB1262083A (en) |
IE (1) | IE32810B1 (en) |
LU (1) | LU58733A1 (en) |
NL (1) | NL6908130A (en) |
NO (1) | NO124990B (en) |
SE (1) | SE366531B (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1547423A (en) * | 1975-03-31 | 1979-06-20 | Japan Government | Gypsum whisker composites |
DE3222865C2 (en) * | 1981-07-10 | 1992-10-22 | Steag Ag, 4300 Essen | Method for granulating plaster of paris produced in chemical processes and using a compacting device for granulating plaster of paris according to the method |
DE3502637A1 (en) * | 1985-01-26 | 1986-09-11 | Frank W. Dr.-Ing. 6600 Saarbrücken Fink | Process for calcining lumpy flue gas desulphurisation gypsum by steam action |
DE3711367A1 (en) * | 1987-04-04 | 1988-10-13 | Rwk Rhein Westfael Kalkwerke | Process for preparing calcium sulphate hemihydrate |
DE3816513C3 (en) * | 1987-05-22 | 1998-10-01 | Pro Mineral Ges | Process for producing calcium sulfate alpha hemihydrate from finely divided calcium sulfate and its use |
DE3844938C2 (en) * | 1987-05-22 | 1996-09-19 | Pro Mineral Ges | Calcium sulphate alpha-mono:hydrate mfr. by autoclaving di:hydrate |
DE4217978A1 (en) * | 1992-05-30 | 1993-12-02 | Heidelberger Zement Ag | Process for the production of ALPHA hemihydrate from calcium sulfate dihydrate in a reactor |
HUE042090T2 (en) * | 2012-07-12 | 2019-06-28 | Knauf Gips Kg | Method for manufacturing of calcium sulfate beta hemihydrate |
CN106044826A (en) * | 2016-05-26 | 2016-10-26 | 东南大学 | Crystal modifier for producing alpha type high-strength gypsum |
-
1968
- 1968-05-28 GB GB2549568A patent/GB1262083A/en not_active Expired
- 1968-12-30 FR FR1599625D patent/FR1599625A/fr not_active Expired
-
1969
- 1969-05-22 IE IE70469A patent/IE32810B1/en unknown
- 1969-05-23 NO NO212269A patent/NO124990B/no unknown
- 1969-05-27 SE SE741869A patent/SE366531B/xx unknown
- 1969-05-28 LU LU58733D patent/LU58733A1/xx unknown
- 1969-05-28 DE DE19691927015 patent/DE1927015B2/en not_active Withdrawn
- 1969-05-28 NL NL6908130A patent/NL6908130A/xx unknown
- 1969-05-28 DK DK288669A patent/DK131772C/en active
- 1969-05-28 BE BE733737D patent/BE733737A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
FR1599625A (en) | 1970-07-15 |
DE1927015B2 (en) | 1976-12-16 |
LU58733A1 (en) | 1969-09-12 |
SE366531B (en) | 1974-04-29 |
GB1262083A (en) | 1972-02-02 |
IE32810L (en) | 1969-11-28 |
NL6908130A (en) | 1969-12-02 |
DE1927015A1 (en) | 1969-12-04 |
NO124990B (en) | 1972-07-03 |
IE32810B1 (en) | 1973-12-12 |
BE733737A (en) | 1969-11-03 |
DK131772C (en) | 1976-02-02 |
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