Abstract
From the study on the mechanism of reducting reaction on MgO·CaO-Fe-Si system, the following results were obtained.1. The activation energy of 55, 000cal/mol was obtained on the reduction of MgO·CaO by use of Fe-Si.2. Metallic iron in Fe-Si has no relation with the reduction of MgO·CaO. The reaction of reduction seemes to be accelerated by the diffusion velocity of Si.3. The reaction starts at about 988°C, and the relation between the reduction temperature and vapor pressure of Mg shows logp (mmHg)=9.203-11, 091/T.4. A big difference can be found between the actual measurement and theoretical value on the relation of reducing temperature and vapor pressure of Mg. By X-ray diffraction method, not only Ca2SiO4 but also 3CaO·2SiO2 is found out in the residue.This may be a cause of the big difference above-mentioned.
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