GB1268396A - Anhydrous calcium sulphate and calcium sulphate semihydrate - Google Patents
Anhydrous calcium sulphate and calcium sulphate semihydrateInfo
- Publication number
- GB1268396A GB1268396A GB2995969A GB2995969A GB1268396A GB 1268396 A GB1268396 A GB 1268396A GB 2995969 A GB2995969 A GB 2995969A GB 2995969 A GB2995969 A GB 2995969A GB 1268396 A GB1268396 A GB 1268396A
- Authority
- GB
- United Kingdom
- Prior art keywords
- calcium sulphate
- semihydrate
- water
- cyclone
- dihydrate
- 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 12
- 235000011132 calcium sulphate Nutrition 0.000 title abstract 6
- 239000001175 calcium sulphate Substances 0.000 title abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 6
- 239000008187 granular material Substances 0.000 abstract 4
- 229910052602 gypsum Inorganic materials 0.000 abstract 4
- 239000010440 gypsum Substances 0.000 abstract 4
- 150000008064 anhydrides Chemical class 0.000 abstract 3
- 238000001354 calcination Methods 0.000 abstract 3
- 150000004683 dihydrates Chemical class 0.000 abstract 3
- 238000001914 filtration Methods 0.000 abstract 2
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 abstract 2
- 150000007514 bases Chemical class 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
- 239000004568 cement Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000010802 sludge 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
- C04B11/26—Calcium sulfate cements strating from chemical gypsum; starting from phosphogypsum or from waste, e.g. purification products of smoke
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR69050105 | 1968-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1268396A true GB1268396A (en) | 1972-03-29 |
Family
ID=9695417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2995969A Expired GB1268396A (en) | 1968-06-14 | 1969-06-12 | Anhydrous calcium sulphate and calcium sulphate semihydrate |
Country Status (8)
| Country | Link |
|---|---|
| AT (1) | AT294671B (enrdf_load_stackoverflow) |
| BE (1) | BE734568A (enrdf_load_stackoverflow) |
| BR (1) | BR6909757D0 (enrdf_load_stackoverflow) |
| CS (1) | CS152324B2 (enrdf_load_stackoverflow) |
| DE (1) | DE1929956B2 (enrdf_load_stackoverflow) |
| FR (1) | FR1601411A (enrdf_load_stackoverflow) |
| GB (1) | GB1268396A (enrdf_load_stackoverflow) |
| NL (1) | NL6908986A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023237231A1 (en) * | 2022-06-08 | 2023-12-14 | Knauf Gips Kg | Process and system for the calcination of gypsum |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE791946A (fr) * | 1971-12-04 | 1973-03-16 | Knauf Westdeutsche Gips | Procede de fabrication de sulfates de calcium pouvant faire prise a partir de sulfates de calcium finement divises |
| FR2201682A5 (enrdf_load_stackoverflow) * | 1972-10-02 | 1974-04-26 | Cerphos | |
| FR2512438A1 (fr) * | 1981-09-04 | 1983-03-11 | Dussel Christian | Procede de preparation d'un platre nouveau et ses applications |
| DE3827612A1 (de) * | 1988-08-13 | 1990-02-15 | Viktor Dr Ing Gobiet | Baustoff fuer die verwendung im untertagebetrieb |
| DE3827613A1 (de) * | 1988-08-13 | 1990-02-15 | Viktor Dr Ing Gobiet | Binder und trockenmoertel fuer anhydrit-fliessestrich und fliessestrich daraus |
| DE19808789B4 (de) * | 1998-03-03 | 2008-02-07 | Rovema - Verpackungsmaschinen Gmbh | Schlauchbeutelmaschine |
-
1968
- 1968-06-14 FR FR1601411D patent/FR1601411A/fr not_active Expired
-
1969
- 1969-06-09 AT AT544369A patent/AT294671B/de active
- 1969-06-12 GB GB2995969A patent/GB1268396A/en not_active Expired
- 1969-06-12 NL NL6908986A patent/NL6908986A/xx unknown
- 1969-06-12 DE DE19691929956 patent/DE1929956B2/de not_active Withdrawn
- 1969-06-13 BR BR20975769A patent/BR6909757D0/pt unknown
- 1969-06-13 BE BE734568D patent/BE734568A/xx unknown
- 1969-06-16 CS CS423569A patent/CS152324B2/cs unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023237231A1 (en) * | 2022-06-08 | 2023-12-14 | Knauf Gips Kg | Process and system for the calcination of gypsum |
| WO2023237230A1 (en) * | 2022-06-08 | 2023-12-14 | Knauf Gips Kg | Extruder for producing gypsum moulded articles, process for manufacturing gypsum-based articles and gypsum-based articles |
Also Published As
| Publication number | Publication date |
|---|---|
| BR6909757D0 (pt) | 1973-03-08 |
| FR1601411A (enrdf_load_stackoverflow) | 1970-08-24 |
| DE1929956B2 (de) | 1976-10-21 |
| NL6908986A (enrdf_load_stackoverflow) | 1969-12-16 |
| CS152324B2 (enrdf_load_stackoverflow) | 1973-12-19 |
| AT294671B (de) | 1971-10-15 |
| DE1929956A1 (de) | 1969-12-18 |
| BE734568A (enrdf_load_stackoverflow) | 1969-11-17 |
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