CONVERTER SLAG-FOAMING DEPRESSANT USING WASTE REFRACTORY

PROBLEM TO BE SOLVED: To provide a slag-foaming depressant contributing to recycle of waste refractory and having better performance than the conventional depressant. SOLUTION: A converter slag-foaming depressant is provided which uses as main raw material, refractory waste material and residual mat...

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Hauptverfasser:	MAEKAWA AKIYOSHI, NISHIJIMA FUMIHARU, YAMAMOTO SHINSUKE, SHIRAMA TOICHI, IKEBE TETSUNORI, OBAYASHI SATOSHI, HANAGIRI SEIJI, ASO SEIJI, FUJITA KOJI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY METALLURGY OF IRON PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a slag-foaming depressant contributing to recycle of waste refractory and having better performance than the conventional depressant. SOLUTION: A converter slag-foaming depressant is provided which uses as main raw material, refractory waste material and residual material produced in electromagnetic separation. The refractory waste materials having various grain sizes, produced in a separating/pulverizing/classifying processes aiming at the recycling of the refractory waste material are combined and kneaded after adding water thereto. Concretely, this converter slag-foaming depressant using the refractory waste material contains: 100 mass parts refractory waste material containing grains in an amount of 5-70 mass%, having the maximum grain size of ≥0.5 mm and having a grain size of a ≤0.15 mm; and 5-50 mass parts of the water, and is packed with a thermally burning-off vessel. COPYRIGHT: (C)2008,JPO&INPIT