METHOD FOR PRODUCING GYPSUM HAVING EXCELLENT FILTERABILITY

PROBLEM TO BE SOLVED: To utilize rock phosphate which could not be used in the conventional method for producing phosphoric acid by the wet process employing a dihydrate- hemihydrate process, and to provide a method for precisely estimating the amounts of diatomaceous earth and a fluorine-based comp...

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Hauptverfasser:	AMANO SHOZO, HATSUJI HISAKAZU, HATSUDA NOBORU
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS COMPOUNDS THEREOF INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS
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