BE881837A - Procede de production d'un melange de sulfate de calcium hemihydrate et de sulfate de calcium dihydrate et ses applications - Google Patents
Procede de production d'un melange de sulfate de calcium hemihydrate et de sulfate de calcium dihydrate et ses applicationsInfo
- Publication number
- BE881837A BE881837A BE0/199485A BE199485A BE881837A BE 881837 A BE881837 A BE 881837A BE 0/199485 A BE0/199485 A BE 0/199485A BE 199485 A BE199485 A BE 199485A BE 881837 A BE881837 A BE 881837A
- Authority
- BE
- Belgium
- Prior art keywords
- sulfate
- calcium
- mixture
- producing
- hemihydrate
- Prior art date
Links
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 title 1
- XZZZMRPZBYIFPN-UHFFFAOYSA-N O.OS(O)(=O)=O.OS(O)(=O)=O Chemical compound O.OS(O)(=O)=O.OS(O)(=O)=O XZZZMRPZBYIFPN-UHFFFAOYSA-N 0.000 title 1
- 229910052791 calcium Inorganic materials 0.000 title 1
- 239000011575 calcium Substances 0.000 title 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title 1
- 239000000203 mixture Substances 0.000 title 1
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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F15/00—Methods or devices for placing filling-up materials in underground workings
- E21F15/005—Methods or devices for placing filling-up materials in underground workings characterised by the kind or composition of the backfilling material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Ceramic Engineering (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Materials Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19792908266 DE2908266C2 (de) | 1979-03-02 | 1979-03-02 | Verfahren zur Herstellung eines Calciumsulfat-Halbhydrat-Dihydrat-Gemisches aus feinteiligem synthetischen Calciumsulfat-Halbhydrat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE881837A true BE881837A (fr) | 1980-06-16 |
Family
ID=6064339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE0/199485A BE881837A (fr) | 1979-03-02 | 1980-02-21 | Procede de production d'un melange de sulfate de calcium hemihydrate et de sulfate de calcium dihydrate et ses applications |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE881837A (nl) |
| DE (1) | DE2908266C2 (nl) |
| FR (1) | FR2460900A1 (nl) |
| NL (1) | NL8000481A (nl) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2526416A1 (fr) * | 1982-05-07 | 1983-11-10 | Weber Sa A | Procede de realisation de barrages pour les mines en platre ou en anhydrite allege, dispositif pour la mise en oeuvre de ce procede, et melange utilise |
| DE3442926C1 (de) * | 1984-11-24 | 1985-07-25 | Saarbergwerke AG, 6600 Saarbrücken | Verfahren zum pneumatischen Fördern einer zu verblasenden feinstkörnigen Baustoffmischung auf Gipsbasis von übertage zum Einsatz nach untertage |
| GB2179932A (en) * | 1985-09-05 | 1987-03-18 | Aeci Ltd | Settable plaster composition |
| WO2001049484A1 (en) | 2000-01-05 | 2001-07-12 | Saint-Gobain Technical Fabrics Of America, Inc. | Smooth reinforced cementitious boards and methods of making same |
| US7585485B2 (en) * | 2006-07-03 | 2009-09-08 | Tripoliven, C.A. | Process for the physiochemical conditioning of chemical gypsum or phospho-gypsum for use in formulation for cement and other construction materials |
| WO2019035782A1 (en) * | 2017-08-15 | 2019-02-21 | Inkaya Yonca | METHOD FOR OBTAINING CONSTRUCTION MATERIALS BY ARRANGING / ADJUSTING AND / OR ENHANCING THE QUANTITY OF THE STRONTIUM ELEMENT (SR) IN THE STRUCTURE OF CALCIUM SULFATES |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1169355B (de) * | 1961-06-16 | 1964-04-30 | Knauf Geb | Verfahren zur Herstellung grossstueckiger Produkte aus feinkoernig anfallendem schwefel-saurem Kalzium, das in der chemischen Industrie abfaellt |
| FR1531830A (fr) * | 1967-07-11 | 1968-07-05 | Central Glass Co Ltd | Procédé de granulation du gypse |
| DE1646972A1 (de) * | 1967-09-26 | 1971-08-12 | Rigips Baustoffwerke Gmbh | Verfahren zur Granulierung von Kalziumsulfat-Halbhydrat |
| DE2146777B2 (de) * | 1971-09-18 | 1976-07-01 | Gebr. Knauf Westdeutsche Gipswerke, 8715Iphofen | Verfahren zur herstellung von abbindefaehigen calciumsulfaten aus feinteiligen calciumsulfaten |
| DE2216039C3 (de) * | 1972-04-01 | 1981-09-17 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen | Hydraulisch abbindendes Material für Ausbauzwecke im Bergbau |
| DE2350066B2 (de) * | 1973-10-05 | 1977-01-20 | Salzgitter Industriebau Gmbh, 3320 Salzgitter | Verfahren zur herstellung abbindefaehiger baustoffe aus alpha-calciumsulfathemihydrat |
| DE2658915C3 (de) * | 1976-12-24 | 1987-06-19 | Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen | Verfahren zur Herstellung von stückigem Calciumsulfat-Dihydrat |
| BR7905689A (pt) * | 1978-09-05 | 1980-05-13 | United States Gypsum Co | Processo aperfeicoado para fabricar prancha de gesso e processo aperfeicoado para preparar e fabricar gesso calcinado |
-
1979
- 1979-03-02 DE DE19792908266 patent/DE2908266C2/de not_active Expired
-
1980
- 1980-01-25 NL NL8000481A patent/NL8000481A/nl not_active Application Discontinuation
- 1980-02-19 FR FR8003631A patent/FR2460900A1/fr not_active Withdrawn
- 1980-02-21 BE BE0/199485A patent/BE881837A/fr not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE2908266C2 (de) | 1986-01-09 |
| NL8000481A (nl) | 1980-09-04 |
| DE2908266B1 (de) | 1980-07-24 |
| FR2460900A1 (fr) | 1981-01-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: FIRMA GEBR. KNAUF WESTDEUTSCHE GIPSWERKE Effective date: 19870228 |