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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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FR814902D1936-03-091936-03-09
Simultaneous manufacture of iron, or its carbide compounds, and cement, or hydraulic lime, in a rotary kiln
ExpiredFR814902A
(en)
Improvements to the processes and devices making it possible to manufacture in a rotary kiln, simultaneously, iron or its carburized compounds and portland cements or hydraulic lime