NL141481B - METHOD FOR CALCINATING GIPS. - Google Patents
METHOD FOR CALCINATING GIPS.Info
- Publication number
- NL141481B NL141481B NL285104A NL285104A NL141481B NL 141481 B NL141481 B NL 141481B NL 285104 A NL285104 A NL 285104A NL 285104 A NL285104 A NL 285104A NL 141481 B NL141481 B NL 141481B
- Authority
- NL
- Netherlands
- Prior art keywords
- gips
- calcinating
- calcinating gips
- Prior art date
Links
- 238000001354 calcination Methods 0.000 title 1
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title 1
- 238000000034 method Methods 0.000 title 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)
- 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)
- Compositions Of Oxide Ceramics (AREA)
- Baking, Grill, Roasting (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 |
---|---|
NL141481B true NL141481B (en) | 1974-03-15 |
Family
ID=22545214
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL285104D NL285104A (en) | 1961-11-13 | ||
NL285104A NL141481B (en) | 1961-11-13 | 1962-11-05 | METHOD FOR CALCINATING GIPS. |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL285104D NL285104A (en) | 1961-11-13 |
Country Status (10)
Country | Link |
---|---|
BE (1) | BE624555A (en) |
CH (1) | CH394926A (en) |
DE (1) | DE1258321B (en) |
DK (1) | DK115723B (en) |
ES (1) | ES282399A1 (en) |
FI (1) | FI47343C (en) |
GB (1) | GB1018464A (en) |
LU (1) | LU42643A1 (en) |
NL (2) | NL141481B (en) |
SE (1) | SE323614B (en) |
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 |
IE49127B1 (en) * | 1979-01-08 | 1985-08-07 | Bpb Industries Ltd | Calcination method and apparatus |
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 |
US7434980B2 (en) | 2004-02-27 | 2008-10-14 | United States Gypsum Company | Swinging agitator for a gypsum calcining apparatus and the like |
US7175426B2 (en) | 2004-02-27 | 2007-02-13 | United States Gypsum Company | High efficiency refractoryless kettle |
NZ587328A (en) * | 2008-02-19 | 2012-03-30 | United States Gypsum Co | Method and apparatus for pressurized calcination of gypsum |
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 (en) * | 1946-05-17 | 1947-11-21 | System and method for drying or heat treatment | |
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
- NL NL285104D patent/NL285104A/xx unknown
- BE BE624555D patent/BE624555A/xx unknown
-
1962
- 1962-10-16 GB GB3918662A patent/GB1018464A/en not_active Expired
- 1962-11-05 NL NL285104A patent/NL141481B/en not_active IP Right Cessation
- 1962-11-05 LU LU42643D patent/LU42643A1/xx unknown
- 1962-11-06 CH CH1296362A patent/CH394926A/en unknown
- 1962-11-09 DK DK483362A patent/DK115723B/en unknown
- 1962-11-10 FI FI201562A patent/FI47343C/en active
- 1962-11-12 ES ES282399A patent/ES282399A1/en not_active Expired
- 1962-11-13 SE SE1218062A patent/SE323614B/xx unknown
- 1962-11-13 DE DEB69612A patent/DE1258321B/en active Pending
Also Published As
Publication number | Publication date |
---|---|
DE1258321B (en) | 1968-01-04 |
LU42643A1 (en) | 1963-01-05 |
DK115723B (en) | 1969-11-03 |
GB1018464A (en) | 1966-01-26 |
FI47343C (en) | 1973-11-12 |
ES282399A1 (en) | 1963-02-01 |
BE624555A (en) | 1963-03-01 |
NL285104A (en) | |
FI47343B (en) | 1973-07-31 |
CH394926A (en) | 1965-06-30 |
SE323614B (en) | 1970-05-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: BPB INDUSTR |
|
V4 | Lapsed because of reaching the maxim lifetime of a patent |