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C21B13/00—Making spongy iron or liquid steel, by direct processes
C21B13/006—Starting from ores containing non ferrous metallic oxides
C—CHEMISTRY; METALLURGY
C21—METALLURGY OF IRON
C21B—MANUFACTURE OF IRON OR STEEL
C21B13/00—Making spongy iron or liquid steel, by direct processes
C21B13/008—Use of special additives or fluxing agents
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FR414864D1909-04-171910-04-16Perfectionnements apportés à la production directe du fer et de l'acier au moyen de minerais d'oxyde de fer
ExpiredFR414864A
(fr)