Preparation of acicular ferromagnetic metal particles consisting

Details Preparation of acicular ferromagnetic metal particles consisting Preparation of acicular ferromagnetic metal particles consisting

1981-05-28

1983-03-29

Stallard, W.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75 26, 148105, 266172, 422143, C22B 110

Patent

active

043782400

ABSTRACT:
A process for the preparation of acicular ferromagnetic metal particles, consisting essentially of iron, by reducing acicular iron oxides and/or iron oxide hydroxides, which are either pure or are modified with conventional foreign metal ions, by means of a gaseous reducing agent in a fluidized bed furnace in which a stirrer is provided immediately above the fluidizing grid.

REFERENCES:
patent: 2879154 (1959-03-01), Campbell
patent: 2947620 (1960-08-01), Whitehouse et al.
patent: 3967986 (1976-07-01), Rau

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