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Priority to DD18951975ApriorityCriticalpatent/DD123307A1/xx
Publication of DD123307A1publicationCriticalpatent/DD123307A1/xx
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
C04B7/434—Preheating with addition of fuel, e.g. calcining