CA1097476A - Traitement du platre de gypse - Google Patents
Traitement du platre de gypseInfo
- Publication number
- CA1097476A CA1097476A CA283,428A CA283428A CA1097476A CA 1097476 A CA1097476 A CA 1097476A CA 283428 A CA283428 A CA 283428A CA 1097476 A CA1097476 A CA 1097476A
- Authority
- CA
- Canada
- Prior art keywords
- plaster
- water
- salt
- gypsum
- seconds
- 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
- 239000011507 gypsum plaster Substances 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000011505 plaster Substances 0.000 claims abstract description 44
- 150000003839 salts Chemical class 0.000 claims abstract description 25
- 239000010440 gypsum Substances 0.000 claims abstract description 18
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 18
- 230000036571 hydration Effects 0.000 claims abstract description 16
- 238000006703 hydration reaction Methods 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 11
- 238000000926 separation method Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 14
- 239000000047 product Substances 0.000 claims description 9
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 239000012065 filter cake Substances 0.000 claims description 2
- 230000002844 continuous effect Effects 0.000 claims 1
- 239000011435 rock Substances 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 description 6
- 239000002002 slurry Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- 238000001354 calcination Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- HGINCPLSRVDWNT-UHFFFAOYSA-N Acrolein Chemical group C=CC=O HGINCPLSRVDWNT-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 description 1
- 235000011132 calcium sulphate Nutrition 0.000 description 1
- 239000001175 calcium sulphate Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 238000003828 vacuum filtration Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA283,428A CA1097476A (fr) | 1977-07-25 | 1977-07-25 | Traitement du platre de gypse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA283,428A CA1097476A (fr) | 1977-07-25 | 1977-07-25 | Traitement du platre de gypse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1097476A true CA1097476A (fr) | 1981-03-17 |
Family
ID=4109203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA283,428A Expired CA1097476A (fr) | 1977-07-25 | 1977-07-25 | Traitement du platre de gypse |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1097476A (fr) |
-
1977
- 1977-07-25 CA CA283,428A patent/CA1097476A/fr not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |