ES432269A1 - Calcining calcium sulphate dihydrate - Google Patents
Calcining calcium sulphate dihydrateInfo
- Publication number
- ES432269A1 ES432269A1 ES432269A ES432269A ES432269A1 ES 432269 A1 ES432269 A1 ES 432269A1 ES 432269 A ES432269 A ES 432269A ES 432269 A ES432269 A ES 432269A ES 432269 A1 ES432269 A1 ES 432269A1
- Authority
- ES
- Spain
- Prior art keywords
- container
- calcium sulphate
- calcination
- calcining calcium
- sulphate 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
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)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Baking, Grill, Roasting (AREA)
- Cookers (AREA)
- Commercial Cooking Devices (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Noodles (AREA)
Abstract
A method with its corresponding apparatus for calcining calcium sulfate dihydrate, in which the dihydrate is heated in a calcination container by means of heat applied to the exterior of the container, characterized in that additional heat is provided for the calcination by hot gas supplied inside the mass of the calcination material inside the container. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB54940/73A GB1488665A (en) | 1973-11-27 | 1973-11-27 | Calcining calcium sulphate dihydrate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES432269A1 true ES432269A1 (en) | 1976-12-16 |
Family
ID=10472525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES432269A Expired ES432269A1 (en) | 1973-11-27 | 1974-11-26 | Calcining calcium sulphate dihydrate |
Country Status (18)
| Country | Link |
|---|---|
| JP (1) | JPS56370B2 (en) |
| AT (1) | AT363376B (en) |
| BE (1) | BE822555A (en) |
| CA (1) | CA1044014A (en) |
| CH (1) | CH605449A5 (en) |
| DE (1) | DE2454857C3 (en) |
| DK (1) | DK153939C (en) |
| ES (1) | ES432269A1 (en) |
| FI (1) | FI59383C (en) |
| FR (1) | FR2252308B1 (en) |
| GB (1) | GB1488665A (en) |
| IE (1) | IE40249B1 (en) |
| IT (1) | IT1026570B (en) |
| LU (1) | LU71346A1 (en) |
| NL (1) | NL181501C (en) |
| NO (1) | NO139823C (en) |
| SE (1) | SE7414838L (en) |
| ZA (1) | ZA747209B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA793953B (en) * | 1978-08-08 | 1980-08-27 | Coal Industry Patents Ltd | Heat treatment of material |
| NL185896C (en) * | 1979-01-08 | 1990-08-16 | Bpb Industries Ltd | DEVICE FOR HEAT TREATMENT OF A GRANULAR MATERIAL. |
| GB2140702A (en) * | 1980-11-10 | 1984-12-05 | Bpb Industries Plc | Fluidised bed calcination |
| ZA817558B (en) * | 1980-11-10 | 1983-02-23 | Bpb Industries Plc | Improvements in calcining calcium sulphate dihydrate |
| US4626199A (en) * | 1985-04-25 | 1986-12-02 | United States Gypsum Company | Submerged combustion calcination |
| US4744961A (en) * | 1985-04-25 | 1988-05-17 | United States Gypsum Company | Submerged combustion calcination |
| DE3536321A1 (en) * | 1985-10-11 | 1987-04-23 | Bischoff Gasreinigung | Process and reactor for producing alpha-hemihydrate gypsum from calcium sulphate dihydrate from flue gas desulphurisation plants operating by the wet scrubbing process with lime |
| GB8625964D0 (en) * | 1986-10-30 | 1986-12-03 | Bpb Industries Plc | Calcination apparatus |
| US5743954A (en) * | 1995-02-02 | 1998-04-28 | United States Gypsum Company | Method for continuous refractoryless calcining of gypsum |
| US5743728A (en) * | 1995-08-15 | 1998-04-28 | Usg Corporation | Method and system for multi-stage calcining of gypsum to produce an anhydrite product |
| US7175426B2 (en) | 2004-02-27 | 2007-02-13 | United States Gypsum Company | High efficiency refractoryless kettle |
| US7434980B2 (en) | 2004-02-27 | 2008-10-14 | United States Gypsum Company | Swinging agitator for a gypsum calcining apparatus and the like |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL285104A (en) * | 1961-11-13 |
-
1973
- 1973-11-27 GB GB54940/73A patent/GB1488665A/en not_active Expired
-
1974
- 1974-11-06 IE IE2281/74A patent/IE40249B1/en unknown
- 1974-11-11 ZA ZA00747209A patent/ZA747209B/en unknown
- 1974-11-14 CA CA213,730A patent/CA1044014A/en not_active Expired
- 1974-11-19 DE DE2454857A patent/DE2454857C3/en not_active Expired
- 1974-11-20 NO NO744190A patent/NO139823C/en unknown
- 1974-11-22 CH CH1558274A patent/CH605449A5/xx not_active IP Right Cessation
- 1974-11-22 FI FI3379/74A patent/FI59383C/en active
- 1974-11-25 LU LU71346A patent/LU71346A1/xx unknown
- 1974-11-25 BE BE150817A patent/BE822555A/en not_active IP Right Cessation
- 1974-11-25 JP JP13583574A patent/JPS56370B2/ja not_active Expired
- 1974-11-26 ES ES432269A patent/ES432269A1/en not_active Expired
- 1974-11-26 SE SE7414838A patent/SE7414838L/xx unknown
- 1974-11-26 DK DK613974A patent/DK153939C/en not_active IP Right Cessation
- 1974-11-27 AT AT0949574A patent/AT363376B/en not_active IP Right Cessation
- 1974-11-27 FR FR7438830A patent/FR2252308B1/fr not_active Expired
- 1974-11-27 NL NLAANVRAGE7415482,A patent/NL181501C/en not_active IP Right Cessation
- 1974-11-27 IT IT29899/74A patent/IT1026570B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| DK153939B (en) | 1988-09-26 |
| ATA949574A (en) | 1980-12-15 |
| IT1026570B (en) | 1978-10-20 |
| LU71346A1 (en) | 1975-06-11 |
| NO744190L (en) | 1975-06-23 |
| NL181501C (en) | 1987-09-01 |
| ZA747209B (en) | 1975-11-26 |
| NO139823B (en) | 1979-02-05 |
| FR2252308B1 (en) | 1982-09-17 |
| JPS56370B2 (en) | 1981-01-07 |
| DE2454857A1 (en) | 1975-05-28 |
| JPS5084497A (en) | 1975-07-08 |
| AT363376B (en) | 1981-07-27 |
| DK613974A (en) | 1975-09-29 |
| CA1044014A (en) | 1978-12-12 |
| FI59383B (en) | 1981-04-30 |
| IE40249B1 (en) | 1979-04-11 |
| BE822555A (en) | 1975-03-14 |
| FI337974A (en) | 1975-05-28 |
| DK153939C (en) | 1989-02-20 |
| DE2454857B2 (en) | 1979-07-12 |
| NL7415482A (en) | 1975-05-29 |
| GB1488665A (en) | 1977-10-12 |
| AU7560974A (en) | 1976-05-27 |
| NO139823C (en) | 1979-05-16 |
| FI59383C (en) | 1981-08-10 |
| IE40249L (en) | 1975-05-27 |
| SE7414838L (en) | 1975-05-28 |
| NL181501B (en) | 1987-04-01 |
| DE2454857C3 (en) | 1980-03-13 |
| FR2252308A1 (en) | 1975-06-20 |
| CH605449A5 (en) | 1978-09-29 |
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