FR504925A - Appareil de chauffage ou de refroidissement - Google Patents
Appareil de chauffage ou de refroidissementInfo
- Publication number
- FR504925A FR504925A FR504925A FR504925DA FR504925A FR 504925 A FR504925 A FR 504925A FR 504925 A FR504925 A FR 504925A FR 504925D A FR504925D A FR 504925DA FR 504925 A FR504925 A FR 504925A
- Authority
- FR
- France
- Prior art keywords
- heating
- cooling device
- cooling
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR504925T | 1919-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR504925A true FR504925A (fr) | 1920-07-20 |
Family
ID=8908129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR504925A Expired FR504925A (fr) | 1919-10-15 | 1919-10-15 | Appareil de chauffage ou de refroidissement |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR504925A (fr) |
-
1919
- 1919-10-15 FR FR504925A patent/FR504925A/fr not_active Expired
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