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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
C04B7/02—Portland cement
C04B7/04—Portland cement using raw materials containing gypsum, i.e. processes of the Mueller-Kuehne type
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FR596423D1925-04-031925-04-03Procédé pour fabriquer du ciment portland et de l'acide sulfurique en partant du gypse comme matière première
ExpiredFR596423A
(fr)
Traitement préalable de mélange farineux brut dans la fabrication d'acide sulfurique et de ciment en partant de gypse ou d'anhydride, d'argile et de charbon