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Priority claimed from DE19681608018external-prioritypatent/DE1608018A1/de
Priority claimed from DE19681807680external-prioritypatent/DE1807680A1/de
Application filedfiledCritical
Publication of LU57678A1publicationCriticalpatent/LU57678A1/xx
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
C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
C04B7/00—Hydraulic cements
C04B7/36—Manufacture of hydraulic cements in general
C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling