NO841799L - Fremgangsmaate ved fremstilling av naaleformige gipskrystaller - Google Patents
Fremgangsmaate ved fremstilling av naaleformige gipskrystallerInfo
- Publication number
- NO841799L NO841799L NO841799A NO841799A NO841799L NO 841799 L NO841799 L NO 841799L NO 841799 A NO841799 A NO 841799A NO 841799 A NO841799 A NO 841799A NO 841799 L NO841799 L NO 841799L
- Authority
- NO
- Norway
- Prior art keywords
- gypsum
- crystals
- fiber
- dihydrate
- needle
- Prior art date
Links
- 239000013078 crystal Substances 0.000 title claims description 18
- 238000000034 method Methods 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 13
- 229910052602 gypsum Inorganic materials 0.000 claims description 47
- 239000010440 gypsum Substances 0.000 claims description 47
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 21
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 claims description 15
- 150000004683 dihydrates Chemical group 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 2
- 230000008025 crystallization Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims 4
- 229910003556 H2 SO4 Inorganic materials 0.000 claims 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims 2
- 235000011132 calcium sulphate Nutrition 0.000 claims 2
- 239000001175 calcium sulphate Substances 0.000 claims 1
- 239000012047 saturated solution Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 19
- 239000011505 plaster Substances 0.000 description 11
- 239000000047 product Substances 0.000 description 7
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 229910052925 anhydrite Inorganic materials 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 239000004566 building material Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 238000001354 calcination Methods 0.000 description 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 description 2
- 239000011111 cardboard Substances 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052586 apatite Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- -1 calcium sulfate anhydride Chemical class 0.000 description 1
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 description 1
- 235000010261 calcium sulphite Nutrition 0.000 description 1
- 239000004295 calcium sulphite Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 239000012297 crystallization seed Substances 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 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
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/10—Particle morphology extending in one dimension, e.g. needle-like
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Saccharide Compounds (AREA)
- Steroid Compounds (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8302590A SE8302590L (sv) | 1983-05-06 | 1983-05-06 | Forfarande for framstellning av fibergips (i) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO841799L true NO841799L (no) | 1984-11-07 |
Family
ID=20351103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO841799A NO841799L (no) | 1983-05-06 | 1984-05-04 | Fremgangsmaate ved fremstilling av naaleformige gipskrystaller |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0126050A1 (sv) |
| DK (1) | DK223784A (sv) |
| FI (1) | FI841779A (sv) |
| NO (1) | NO841799L (sv) |
| SE (1) | SE8302590L (sv) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2647433B1 (fr) * | 1989-05-23 | 1991-10-31 | Lafarge Coppee Da | Procede de preparation par voie aqueuse de sulfate de calcium purifie |
| GB9213998D0 (en) * | 1992-07-01 | 1992-08-12 | Tioxide Group Services Ltd | Process for preparing calcium sulphate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1547424A (en) * | 1975-03-31 | 1979-06-20 | Japan Government | Method of producing needlelike 11-anhydrite gypsum |
| US4152408A (en) * | 1977-11-25 | 1979-05-01 | Certain-Teed Corporation | Fibrous calcium sulfate |
| NL7812108A (nl) * | 1978-12-13 | 1980-06-17 | Stamicarbon | Werkwijze voor het bereiden van calciumsulfaat- hemihydraat en calciumsulfaathemihydraat verkregen volgens deze werkwijze. |
| NL8004058A (nl) * | 1980-07-15 | 1982-02-16 | Stamicarbon | Werkwijze voor het bereiden van fosforzuur en calciumsulfaatanhydriet, alsmede fosforzuur en calciumsulfaatanhydriet verkregen volgens deze werkwijze. |
-
1983
- 1983-05-06 SE SE8302590A patent/SE8302590L/sv not_active Application Discontinuation
-
1984
- 1984-05-02 EP EP19840850139 patent/EP0126050A1/en not_active Withdrawn
- 1984-05-04 FI FI841779A patent/FI841779A/fi not_active Application Discontinuation
- 1984-05-04 NO NO841799A patent/NO841799L/no unknown
- 1984-05-04 DK DK223784A patent/DK223784A/da not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| SE8302590D0 (sv) | 1983-05-06 |
| DK223784D0 (da) | 1984-05-04 |
| FI841779A0 (fi) | 1984-05-04 |
| FI841779A (fi) | 1984-11-07 |
| SE8302590L (sv) | 1984-11-07 |
| EP0126050A1 (en) | 1984-11-21 |
| DK223784A (da) | 1984-11-07 |
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