SUPPRESSION METHOD FOR POWDERING OF SLAG

PROBLEM TO BE SOLVED: To provide a method for suppressing powdering of a slag and using the slag effectively. SOLUTION: The slag contains, as main components, silicon oxide, aluminum oxide and calcium oxide, and among the silicon oxide content x (%), the aluminum oxide content y (%), and the calcium...

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Hauptverfasser:	YUKI TOSHITAKA, HIRAI NAOKI
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LIME, MAGNESIA METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS REFRACTORIES SLAG TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF NATURAL STONE
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Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for suppressing powdering of a slag and using the slag effectively. SOLUTION: The slag contains, as main components, silicon oxide, aluminum oxide and calcium oxide, and among the silicon oxide content x (%), the aluminum oxide content y (%), and the calcium oxide content z (%), there are relations: formula (1) [z≥50, y>x, and x+y+z=100]. The suppression method for powdering the slag is cooling the slag to solidify from its melt state by a cooling speed V (°C/min) which satisfies the following relation on the contents of respective components: formula (2) [logV≥(10x-45)/(100-0.6x-y)]. COPYRIGHT: (C)2005,JPO&NCIPI