Production process of ferromagnetic iron powder

Details Production process of ferromagnetic iron powder Production process of ferromagnetic iron powder

1983-01-24

1984-09-04

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 05BA, 148105, C22C 104

Patent

active

044695071

ABSTRACT:
Disclosed herein is a process for producing ferromagnetic iron powder, which process comprises adding and mixing zinc borate with .alpha.-FeOOH or .alpha.-Fe.sub.2 O.sub.3 without dissolving the former, heating the thus-obtained mixture to 350.degree. C. or higher in a non-reducing atmosphere and then reducing the thus-heated mixture.

REFERENCES:
patent: 4165232 (1979-08-01), Jaeckl et al.
patent: 4290799 (1981-09-01), Schroeder et al.

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