Conclusions
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1.
A study was made of the technological characteristics of a process for the preparation of ferromolybdenum alloy powder, in which mixtures of Fe3O4 and MoO3 oxides are subjected to ferritization and subsequent direct reduction.
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2.
For compacted mixtures containing up to 1.5% MoO3, complete solid-phase ferritization is achieved. The optimum process parameters are a temperature of 900°C and a process duration of 6–9 h.
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3.
To obtain a complex Fe3O4-MoO3-base oxide from mixtures with MoO3 contents of 1.5–10.5% or higher, another process is proposed, in which the ammonium chloride NH4Cl is added to the mixture to accelerate ferritization.
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4.
The optimum process parameters have been determined for the ferritization of complex Fe3O4-MoO3 oxides, and some test results are reported. The new method may be applied to the preparation of ferrites, complex composite powders, and dispersion-hardening alloys.
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Translated from Poroshkovaya Metallurgiya, No. 3 (87), pp. 43–50, March, 1970.