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C21B13/00—Making spongy iron or liquid steel, by direct processes
C21B13/08—Making spongy iron or liquid steel, by direct processes in rotary furnaces
C21B13/085—Making spongy iron or liquid steel, by direct processes in rotary furnaces wherein iron or steel is obtained in a molten state
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FR814902D1936-03-091936-03-09Fabrication simultanée du fer, ou de ses composés carbures, et du ciment, ou de lachaux hydraulique, au four rotatif
ExpiredFR814902A
(fr)
Perfectionnements aux procédés et dispositifs permettant de fabriquer au four rotatif, simultanément, le fer ou ses composés carburés et les ciments portland ou chaux hydrauliques