ES442078A1 - Un procedimiento de preparacion de sulfato de calcio hemi- drato yno sulfato calcico anhidrita. - Google Patents
Un procedimiento de preparacion de sulfato de calcio hemi- drato yno sulfato calcico anhidrita.Info
- Publication number
- ES442078A1 ES442078A1 ES75442078A ES442078A ES442078A1 ES 442078 A1 ES442078 A1 ES 442078A1 ES 75442078 A ES75442078 A ES 75442078A ES 442078 A ES442078 A ES 442078A ES 442078 A1 ES442078 A1 ES 442078A1
- Authority
- ES
- Spain
- Prior art keywords
- calcium sulfate
- total
- crystals
- dihydrate
- anhydrite
- 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
- 229910052602 gypsum Inorganic materials 0.000 title 1
- 239000010440 gypsum Substances 0.000 title 1
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 abstract 14
- 229910052925 anhydrite Inorganic materials 0.000 abstract 3
- 239000013078 crystal Substances 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 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 2
- 238000001556 precipitation Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 230000036571 hydration Effects 0.000 abstract 1
- 238000006703 hydration reaction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 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
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 |
|---|---|---|---|
| GB4641174A GB1528352A (en) | 1974-10-26 | 1974-10-26 | Gypsum products and their production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES442078A1 true ES442078A1 (es) | 1977-07-01 |
Family
ID=10441158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES75442078A Expired ES442078A1 (es) | 1974-10-26 | 1975-10-24 | Un procedimiento de preparacion de sulfato de calcio hemi- drato yno sulfato calcico anhidrita. |
Country Status (4)
| Country | Link |
|---|---|
| BR (1) | BR7506997A (es) |
| ES (1) | ES442078A1 (es) |
| FR (1) | FR2289463A1 (es) |
| GB (1) | GB1528352A (es) |
-
1974
- 1974-10-26 GB GB4641174A patent/GB1528352A/en not_active Expired
-
1975
- 1975-10-24 BR BR7506997A patent/BR7506997A/pt unknown
- 1975-10-24 ES ES75442078A patent/ES442078A1/es not_active Expired
- 1975-10-24 FR FR7532583A patent/FR2289463A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2289463A1 (fr) | 1976-05-28 |
| GB1528352A (en) | 1978-10-11 |
| BR7506997A (pt) | 1976-08-17 |
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