GB1271925A - THE PRODUCTION OF CALCIUM SULPHATE alpha-HEMIHYDRATE - Google Patents
THE PRODUCTION OF CALCIUM SULPHATE alpha-HEMIHYDRATEInfo
- Publication number
- GB1271925A GB1271925A GB1962870A GB1962870A GB1271925A GB 1271925 A GB1271925 A GB 1271925A GB 1962870 A GB1962870 A GB 1962870A GB 1962870 A GB1962870 A GB 1962870A GB 1271925 A GB1271925 A GB 1271925A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hemihydrate
- calcium sulphate
- sulphate
- production
- calcium
- 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.)
- Expired
Links
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 title abstract 6
- 239000001175 calcium sulphate Substances 0.000 title abstract 3
- 235000011132 calcium sulphate Nutrition 0.000 title abstract 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical group [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- -1 alkaline earth metal salt Chemical class 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 229920002134 Carboxymethyl cellulose Polymers 0.000 abstract 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 239000001164 aluminium sulphate Substances 0.000 abstract 1
- 235000011128 aluminium sulphate Nutrition 0.000 abstract 1
- 239000001506 calcium phosphate Substances 0.000 abstract 1
- 229910000389 calcium phosphate Inorganic materials 0.000 abstract 1
- 235000011010 calcium phosphates Nutrition 0.000 abstract 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 abstract 1
- 239000001768 carboxy methyl cellulose Substances 0.000 abstract 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 abstract 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 abstract 1
- 229940105329 carboxymethylcellulose Drugs 0.000 abstract 1
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- BUACSMWVFUNQET-UHFFFAOYSA-H dialuminum;trisulfate;hydrate Chemical compound O.[Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O BUACSMWVFUNQET-UHFFFAOYSA-H 0.000 abstract 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 abstract 1
- 235000019341 magnesium sulphate Nutrition 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 abstract 1
- 239000001117 sulphuric acid Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 abstract 1
- 239000002699 waste material Substances 0.000 abstract 1
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 |
|---|---|---|---|
| DE19691923993 DE1923993C3 (de) | 1969-05-10 | 1969-05-10 | Verfahren zur Steuerung von Kn Stalltracht und wachstum bei der hy drothermalen Herstellung von alpha Calcium sulfat Halbhydrat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1271925A true GB1271925A (en) | 1972-04-26 |
Family
ID=5733871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1962870A Expired GB1271925A (en) | 1969-05-10 | 1970-04-23 | THE PRODUCTION OF CALCIUM SULPHATE alpha-HEMIHYDRATE |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE741977A (enrdf_load_stackoverflow) |
| CS (1) | CS188109B2 (enrdf_load_stackoverflow) |
| DE (1) | DE1923993C3 (enrdf_load_stackoverflow) |
| FR (1) | FR2043760B1 (enrdf_load_stackoverflow) |
| GB (1) | GB1271925A (enrdf_load_stackoverflow) |
| NL (1) | NL7006145A (enrdf_load_stackoverflow) |
| YU (1) | YU116370A (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2337374A1 (de) * | 1973-07-23 | 1975-04-10 | Gypsum Research | Verfahren zur herstellung von faserhaltigen baukoerpern |
| DE2336220C2 (de) * | 1973-07-17 | 1983-08-18 | Gypsum Research S.A., Genève | Verfahren zur Herstellung von faserhaltigen Baukörpern |
| GB1547424A (en) * | 1975-03-31 | 1979-06-20 | Japan Government | Method of producing needlelike 11-anhydrite gypsum |
| DE2844266C2 (de) * | 1978-10-11 | 1984-10-31 | Giulini Chemie Gmbh, 6700 Ludwigshafen | Hartgips, Verfahren zu seiner Herstellung und seine Verwendung |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE376001C (de) * | 1920-02-15 | 1923-05-22 | Kaliwerke Salzdetfurth Akt Ges | Verfahren zur Gewinnung eines mit Wasser abbindenden Mittels aus Anhydrit |
| GB1061407A (en) * | 1964-04-15 | 1967-03-15 | Nii Zhelezobetonnykh Izdely St | Method of manufacturing a water-resistant composition |
-
1969
- 1969-05-10 DE DE19691923993 patent/DE1923993C3/de not_active Expired
- 1969-11-20 BE BE741977D patent/BE741977A/xx unknown
-
1970
- 1970-04-23 GB GB1962870A patent/GB1271925A/en not_active Expired
- 1970-04-23 CS CS282570A patent/CS188109B2/cs unknown
- 1970-04-28 NL NL7006145A patent/NL7006145A/xx unknown
- 1970-05-05 FR FR7016364A patent/FR2043760B1/fr not_active Expired
- 1970-05-08 YU YU116370A patent/YU116370A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1923993C3 (de) | 1973-10-11 |
| CS188109B2 (en) | 1979-02-28 |
| DE1923993B2 (de) | 1973-03-08 |
| YU116370A (en) | 1982-02-28 |
| DE1923993A1 (de) | 1970-11-19 |
| FR2043760B1 (enrdf_load_stackoverflow) | 1974-05-24 |
| FR2043760A1 (enrdf_load_stackoverflow) | 1971-02-19 |
| BE741977A (enrdf_load_stackoverflow) | 1970-05-04 |
| NL7006145A (enrdf_load_stackoverflow) | 1970-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |