SE300105B - - Google Patents
Info
- Publication number
- SE300105B SE300105B SE240663A SE240663A SE300105B SE 300105 B SE300105 B SE 300105B SE 240663 A SE240663 A SE 240663A SE 240663 A SE240663 A SE 240663A SE 300105 B SE300105 B SE 300105B
- Authority
- SE
- Sweden
- Prior art keywords
- hemihydrate
- calcium sulphate
- water
- salts
- compounds
- Prior art date
Links
- 150000003839 salts Chemical class 0.000 abstract 4
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 abstract 3
- 150000001875 compounds Chemical class 0.000 abstract 3
- 239000006227 byproduct Substances 0.000 abstract 2
- 238000001354 calcination Methods 0.000 abstract 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 abstract 2
- 235000011007 phosphoric acid Nutrition 0.000 abstract 2
- 150000003016 phosphoric acids Chemical class 0.000 abstract 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 239000007900 aqueous suspension Substances 0.000 abstract 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 235000011116 calcium hydroxide Nutrition 0.000 abstract 1
- 239000004568 cement Substances 0.000 abstract 1
- 235000010299 hexamethylene tetramine Nutrition 0.000 abstract 1
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 235000010755 mineral Nutrition 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 0.000 abstract 1
- 229910021653 sulphate ion Inorganic materials 0.000 abstract 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
- 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
-
- 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
-
- 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
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK46118A DE1174672B (de) | 1962-03-09 | 1962-03-09 | Verfahren zur Aufbereitung von Calciumsulfat-Dihydrat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE300105B true SE300105B (https=) | 1968-04-08 |
Family
ID=7224092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE240663A SE300105B (https=) | 1962-03-09 | 1963-03-05 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1174672B (https=) |
| DK (1) | DK114183B (https=) |
| GB (1) | GB1027434A (https=) |
| SE (1) | SE300105B (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10023496B1 (en) * | 2017-06-16 | 2018-07-17 | United States Gypsum Company | No fiber calcination of gypsum for gypsum fiberboard |
| CN114409285B (zh) * | 2022-01-05 | 2023-06-13 | 北新集团建材股份有限公司 | 一种石膏原料预处理方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1713868A (en) * | 1928-07-18 | 1929-05-21 | Rumford Chemical Works | Process of treating acidulous by-product calcium sulphate |
-
1962
- 1962-03-09 DE DEK46118A patent/DE1174672B/de active Pending
-
1963
- 1963-02-28 GB GB802763A patent/GB1027434A/en not_active Expired
- 1963-03-02 DK DK96963A patent/DK114183B/da unknown
- 1963-03-05 SE SE240663A patent/SE300105B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1027434A (en) | 1966-04-27 |
| DK114183B (da) | 1969-06-02 |
| DE1174672B (de) | 1964-07-23 |
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