CA1055678A - Method of preparing plaster - Google Patents
Method of preparing plasterInfo
- Publication number
- CA1055678A CA1055678A CA230,364A CA230364A CA1055678A CA 1055678 A CA1055678 A CA 1055678A CA 230364 A CA230364 A CA 230364A CA 1055678 A CA1055678 A CA 1055678A
- Authority
- CA
- Canada
- Prior art keywords
- gypsum
- vessel
- hot gases
- nozzle
- water
- 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
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
- 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
- C04B11/028—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained
- C04B11/036—Devices therefor characterised by the type of calcining devices used therefor or by the type of hemihydrate obtained for the dry process, e.g. dehydrating in a fluidised bed or in a rotary kiln, i.e. to obtain beta-hemihydrate
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/12—Surface area
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)
- Nozzles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7422621A FR2276276A1 (fr) | 1974-06-28 | 1974-06-28 | Procede de preparation de platre |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1055678A true CA1055678A (en) | 1979-06-05 |
Family
ID=9140666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA230,364A Expired CA1055678A (en) | 1974-06-28 | 1975-06-27 | Method of preparing plaster |
Country Status (20)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52110190A (en) * | 1976-03-11 | 1977-09-16 | Ikeda Kougiyou Kk | Apparatus for forming iron band hook |
| US4319927A (en) | 1980-05-07 | 1982-03-16 | The Flintkote Company | Portland-type cements |
| FR2516907A1 (fr) * | 1981-11-23 | 1983-05-27 | Rhone Poulenc Chim Base | Procede de fabrication de fibres en anhydrite soluble ou insoluble, notamment de type aciculaire, utilisables comme charges renforcantes et dispositif pour sa mise en oeuvre |
| US4533528A (en) * | 1983-07-15 | 1985-08-06 | United States Gypsum Company | Process for continuously calcining gypsum to low dispersed consistency stucco |
| DE3500241A1 (de) * | 1985-01-05 | 1986-07-10 | Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck | Verfahren zur herstellung von bergbaugips hinter rauchgasentschwefelungsanlagen |
| FR2592321A1 (fr) * | 1986-01-02 | 1987-07-03 | Rhone Poulenc Chim Base | Procede d'obtention d'une phase gazeuse a temperature elevee, et dispositif pour mettre en oeuvre le procede. application au traitement des phases liquides ou gazeuses, chargees ou non de solides, et solides pulverisables. |
| DE3827612A1 (de) * | 1988-08-13 | 1990-02-15 | Viktor Dr Ing Gobiet | Baustoff fuer die verwendung im untertagebetrieb |
| FR2856679B1 (fr) * | 2003-06-26 | 2006-12-22 | Couturier Jean | Procede de preparation d'anhydrite iii stabilise a partir de platre. |
| US7585485B2 (en) | 2006-07-03 | 2009-09-08 | Tripoliven, C.A. | Process for the physiochemical conditioning of chemical gypsum or phospho-gypsum for use in formulation for cement and other construction materials |
| US7556791B2 (en) * | 2006-12-20 | 2009-07-07 | United States Gypsum Company | Gypsum anhydrite fillers and process for making same |
| FR2933688B1 (fr) * | 2008-07-11 | 2011-05-13 | K And Co | Procede de fabrication industrielle de compositions a base de sulfate de calcium anhydre sous forme beta anhydrite iii' compositions et liants correspondants. |
| EP2163532A1 (de) * | 2008-09-11 | 2010-03-17 | Claudius Peters Technologies GmbH | Verfahren und Anlage zur Herstellung von Hartgips |
| EP2166564B1 (en) * | 2008-09-19 | 2017-04-12 | Imec | Method for removing a hardened photoresist from a semiconductor substrate |
| FR2947258B1 (fr) * | 2009-06-26 | 2011-07-22 | K And Co | Procede d'obtention en voie seche de sulfate de calcium anhydre sous forme beta anhydrite iii a partir d'hemihydrate de sulfate de calcium. |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1183098A (en) * | 1910-04-04 | 1916-05-16 | Merrell Soule Co | Desiccating apparatus. |
| US3050374A (en) * | 1959-03-30 | 1962-08-21 | Tennessee Valley Authority | Phosphorus burner assembly |
| US3238021A (en) * | 1963-01-21 | 1966-03-01 | Monsanto Co | Mixing equipment |
| JPS4219038Y1 (US06653308-20031125-C00199.png) * | 1965-07-12 | 1967-11-02 | ||
| US3563701A (en) * | 1967-02-28 | 1971-02-16 | Climax Chem | Method of producing sulfate granules and volatile acid gases |
| DE1940007B2 (de) * | 1969-08-06 | 1973-06-07 | Rheinstahl Ag, 4300 Essen | Verfahren zum brennen von gips in einem heizgasstrom |
| US3773893A (en) * | 1970-02-24 | 1973-11-20 | Occidental Petroleum Corp | Process for removing sulfur dioxide from gas streams using molten thiocyanates |
| US3805869A (en) * | 1971-09-18 | 1974-04-23 | Huels Chemische Werke Ag | Apparatus for the preparation of emulsifier-containing polyvinyl chloride or vinyl chloride copolymer powders |
| US3956456A (en) * | 1971-12-17 | 1976-05-11 | National Gypsum Company | Gypsum calcination |
| JPS4869158A (US06653308-20031125-C00199.png) * | 1971-12-22 | 1973-09-20 | ||
| DE2200532A1 (de) * | 1972-01-07 | 1973-07-12 | Rheinstahl Ag | Verfahren und vorrichtung zum herstellen von mehrphasengipsen |
-
1974
- 1974-06-28 FR FR7422621A patent/FR2276276A1/fr active Granted
-
1975
- 1975-01-01 AR AR259390A patent/AR205827A1/es active
- 1975-06-17 ZA ZA00753873A patent/ZA753873B/xx unknown
- 1975-06-20 GB GB26374/75A patent/GB1500579A/en not_active Expired
- 1975-06-20 PH PH17298A patent/PH12881A/en unknown
- 1975-06-25 IL IL47569A patent/IL47569A/xx unknown
- 1975-06-26 DE DE2528560A patent/DE2528560B2/de not_active Ceased
- 1975-06-26 LU LU72830A patent/LU72830A1/xx unknown
- 1975-06-26 BR BR5174/75D patent/BR7504028A/pt unknown
- 1975-06-27 IT IT50265/75A patent/IT1040751B/it active
- 1975-06-27 FI FI751917A patent/FI60549C/fi not_active IP Right Cessation
- 1975-06-27 TR TR18383A patent/TR18383A/xx unknown
- 1975-06-27 ES ES438925A patent/ES438925A1/es not_active Expired
- 1975-06-27 CA CA230,364A patent/CA1055678A/en not_active Expired
- 1975-06-27 BE BE157767A patent/BE830745A/xx not_active IP Right Cessation
- 1975-06-27 NL NL7507684A patent/NL7507684A/xx not_active Application Discontinuation
- 1975-06-27 JP JP50079931A patent/JPS5126929A/ja active Pending
- 1975-06-27 DK DK292375A patent/DK292375A/da not_active Application Discontinuation
- 1975-06-30 US US05/591,333 patent/US4086099A/en not_active Expired - Lifetime
- 1975-06-30 AT AT0501775A patent/AT367005B/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL7507684A (nl) | 1975-12-30 |
| IL47569A (en) | 1978-10-31 |
| GB1500579A (en) | 1978-02-08 |
| LU72830A1 (US06653308-20031125-C00199.png) | 1976-04-13 |
| FR2276276A1 (fr) | 1976-01-23 |
| US4086099A (en) | 1978-04-25 |
| PH12881A (en) | 1979-09-25 |
| FI60549C (fi) | 1982-02-10 |
| FI751917A (US06653308-20031125-C00199.png) | 1975-12-29 |
| DE2528560B2 (de) | 1978-06-29 |
| IL47569A0 (en) | 1975-08-31 |
| AR205827A1 (es) | 1976-06-07 |
| IT1040751B (it) | 1979-12-20 |
| AU8245475A (en) | 1977-01-06 |
| BE830745A (fr) | 1975-12-29 |
| BR7504028A (pt) | 1976-06-29 |
| FR2276276B1 (US06653308-20031125-C00199.png) | 1977-10-07 |
| DE2528560A1 (de) | 1976-01-08 |
| ES438925A1 (es) | 1977-02-01 |
| JPS5126929A (US06653308-20031125-C00199.png) | 1976-03-05 |
| ZA753873B (en) | 1976-05-26 |
| DK292375A (da) | 1975-12-29 |
| FI60549B (fi) | 1981-10-30 |
| AT367005B (de) | 1982-05-25 |
| ATA501775A (de) | 1981-10-15 |
| TR18383A (tr) | 1977-05-01 |
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