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Title:
PROCESS FOR PRODUCING ULTRAFINE MAGNETIC METAL POWDER
Document Type and Number:
WIPO Patent Application WO/1988/010002
Kind Code:
A1
Abstract:
A process for producing ultrafine magnetic metal powder, which comprises reacting a hydrogen gas with a metal halide vapor while supplying an active gas having a higher reactivity with the metal halide vapor than with the hydrogen gas into the reaction zone. As a result, the amount of the hydrogen gas can be reduced, and ultrafine magnetic metal powder with good properties can be produced efficiently.

Inventors:
YOSHIZAWA AKINORI (JP)
MAEDA TOMOO (JP)
YAMATO MASAYUKI (JP)
Application Number:
PCT/JP1988/000545
Publication Date:
December 15, 1988
Filing Date:
June 06, 1988
Export Citation:
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Assignee:
NIPPON KOKAN KK (JP)
YOSHIZAWA AKINORI (JP)
International Classes:
B22F9/28; G11B5/706; G11B5/85; H01F1/06; (IPC1-7): H01F1/06; B22F9/28
Foreign References:
JPS59170211A1984-09-26
JPH0615822A1994-01-25
JPS61221365A1986-10-01
Other References:
See also references of EP 0318590A4
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