Title:
METHOD FOR MANUFACTURING NEEDLE-SHAPED OR ROD-SHAPED POROUS IRON POWDER AND NEEDLE-SHAPED OR ROD-SHAPED POROUS IRON POWDER MANUFACTURED THEREBY
Document Type and Number:
WIPO Patent Application WO/2020/096293
Kind Code:
A1
Abstract:
The present invention relates to a method for manufacturing a needle-shaped or rod-shaped porous iron powder. Specifically, the present invention provides a method for manufacturing a needle-shaped or rod-shaped porous iron powder and a needle-shaped or rod-shaped porous iron powder manufactured thereby, the method comprising the steps of: preparing a ferrous dichloride chloride by concentrating a ferrous chloride aqueous solution; solid-liquid separating the ferrous dichloride to prepare ferrous dichloride powder; oxidizing the ferrous dichloride powder; and reducing the oxidized ferrous dichloride.
Inventors:
HAN GIL-SOO (KR)
EOM HYUNG-SUB (KR)
PARK JIN-GYUN (KR)
EOM HYUNG-SUB (KR)
PARK JIN-GYUN (KR)
Application Number:
PCT/KR2019/014795
Publication Date:
May 14, 2020
Filing Date:
November 04, 2019
Export Citation:
Assignee:
POSCO (KR)
RES INST IND SCIENCE & TECH (KR)
RES INST IND SCIENCE & TECH (KR)
International Classes:
B22F9/24; B22F1/062
Foreign References:
| KR101798731B1 | 2017-11-17 | |||
| KR20180082760A | 2018-07-19 | |||
| KR950006268B1 | 1995-06-13 | |||
| JP2005145757A | 2005-06-09 | |||
| US20160096739A1 | 2016-04-07 | |||
| US20160096739A1 | 2016-04-07 |
Other References:
See also references of EP 3878580A4
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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