Method for treating steel plant slag

Glass manufacturing – Processes – Slag – utilization

Reexamination Certificate

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C065S020000, C065S134400, C065S134500

Reexamination Certificate

active

06945077

ABSTRACT:
A method is presented for the treatment of slag from electric steel plants which comprises the following steps: (a) transference of the slag into a metallurgical receptacle; (b) defoaming of the slag in this metallurgical receptacle by adding a defoaming agent, preferably silica; (c) subsequent heating of the slag to make it fluid; and (d) forced cooling of the slag, for example by an aqueous granulation.

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patent: 0716153 (1996-06-01), None
patent: 2780965 (2000-01-01), None
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patent: 1495195 (1977-12-01), None
Patent Abstracts of Japan—vol. 003, No. 027 (C-039), Mar. 7, 1979 & JP 54 001296 A (Sumitomo Metal Ind Ltd), Jan. 8, 1979 abstract.
Database WPI—Section Ch, Week 199431 Derwent Publications Ltd., London, GB; Class J09, AN 1994-252560 XP002170577 & JP 06 183794 A (Daido Tokushuko KK), Jul. 5, 1994 abstract.

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