SE323614B - - Google Patents
Info
- Publication number
- SE323614B SE323614B SE1218062A SE1218062A SE323614B SE 323614 B SE323614 B SE 323614B SE 1218062 A SE1218062 A SE 1218062A SE 1218062 A SE1218062 A SE 1218062A SE 323614 B SE323614 B SE 323614B
- Authority
- SE
- Sweden
- Prior art keywords
- vessel
- gypsum
- calcined
- lower region
- conduit
- Prior art date
Links
- 229910052602 gypsum Inorganic materials 0.000 abstract 6
- 239000010440 gypsum Substances 0.000 abstract 6
- 230000000630 rising effect Effects 0.000 abstract 3
- 239000007789 gas Substances 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
- B01J6/001—Calcining
- B01J6/004—Calcining using hot gas streams in which the material is moved
-
- 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
-
- 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
- C04B11/0281—Kettles; Marmites; Autoclaves
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Baking, Grill, Roasting (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Crucibles And Fluidized-Bed Furnaces (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15296861A | 1961-11-13 | 1961-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SE323614B true SE323614B (US06262066-20010717-C00315.png) | 1970-05-04 |
Family
ID=22545214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE1218062A SE323614B (US06262066-20010717-C00315.png) | 1961-11-13 | 1962-11-13 |
Country Status (10)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1488665A (en) * | 1973-11-27 | 1977-10-12 | Bpb Industries Ltd | Calcining calcium sulphate dihydrate |
| US4161390A (en) * | 1977-06-16 | 1979-07-17 | United States Gypsum Company | Calcining kettle having multi-pass heating system |
| GB2001157B (en) * | 1977-07-15 | 1982-07-07 | Coal Ind | Improvements in or relating to fluidised beds |
| US4188186A (en) * | 1978-06-22 | 1980-02-12 | Combustion Engineering, Inc. | Automatic calcining kettle |
| ZA793953B (en) * | 1978-08-08 | 1980-08-27 | Coal Industry Patents Ltd | Heat treatment of material |
| NL185896C (nl) * | 1979-01-08 | 1990-08-16 | Bpb Industries Ltd | Inrichting voor het met warmte behandelen van een korrelvormig materiaal. |
| US4533528A (en) * | 1983-07-15 | 1985-08-06 | United States Gypsum Company | Process for continuously calcining gypsum to low dispersed consistency stucco |
| US4626199A (en) * | 1985-04-25 | 1986-12-02 | United States Gypsum Company | Submerged combustion calcination |
| 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 |
| JP5439643B2 (ja) * | 2008-02-19 | 2014-03-12 | ユナイテッド・ステイツ・ジプサム・カンパニー | 石膏の焼成方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2485317A (en) * | 1943-01-29 | 1949-10-18 | Standard Oil Dev Co | Method of manufacturing plaster of paris |
| GB610439A (en) * | 1946-04-05 | 1948-10-15 | Reginald George Franklin | Improvements in and relating to the dehydration of particulate calcium sulphate |
| FR928217A (fr) * | 1946-05-17 | 1947-11-21 | Système et procédé de séchage ou de traitement thermique | |
| GB855131A (en) * | 1955-12-01 | 1960-11-30 | Smidth & Co As F L | Improvements relating to apparatus and installations for the cooling of cement or other material which can be fluidised |
-
0
- BE BE624555D patent/BE624555A/xx unknown
- NL NL285104D patent/NL285104A/xx unknown
-
1962
- 1962-10-16 GB GB3918662A patent/GB1018464A/en not_active Expired
- 1962-11-05 NL NL285104A patent/NL141481B/xx not_active IP Right Cessation
- 1962-11-05 LU LU42643D patent/LU42643A1/xx unknown
- 1962-11-06 CH CH1296362A patent/CH394926A/de unknown
- 1962-11-09 DK DK483362A patent/DK115723B/da unknown
- 1962-11-10 FI FI201562A patent/FI47343C/fi active
- 1962-11-12 ES ES282399A patent/ES282399A1/es not_active Expired
- 1962-11-13 DE DEB69612A patent/DE1258321B/de active Pending
- 1962-11-13 SE SE1218062A patent/SE323614B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1258321B (de) | 1968-01-04 |
| CH394926A (de) | 1965-06-30 |
| GB1018464A (en) | 1966-01-26 |
| FI47343B (US06262066-20010717-C00315.png) | 1973-07-31 |
| BE624555A (US06262066-20010717-C00315.png) | 1963-03-01 |
| NL285104A (US06262066-20010717-C00315.png) | |
| FI47343C (fi) | 1973-11-12 |
| DK115723B (da) | 1969-11-03 |
| NL141481B (nl) | 1974-03-15 |
| LU42643A1 (US06262066-20010717-C00315.png) | 1963-01-05 |
| ES282399A1 (es) | 1963-02-01 |
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