METHOD OF PRODUCING GYPSUM HAVING EXCELLENT FILTERABILITY

PROBLEM TO BE SOLVED: To provide a method of using phosphorous ore for producing wet phosphoric acid in the dihydrate-hemihydrate process, and to provide a method of correctly predicting added amounts of silica substances such as diatomaceous earth and fluorine compounds. SOLUTION: In the method of...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	AMANO SHOZO, HARADA FUMIE, HATSUJI HISAKAZU, HATSUDA NOBORU
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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