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1. WO2020096293 - METHOD FOR MANUFACTURING NEEDLE-SHAPED OR ROD-SHAPED POROUS IRON POWDER AND NEEDLE-SHAPED OR ROD-SHAPED POROUS IRON POWDER MANUFACTURED THEREBY

Publication Number WO/2020/096293
Publication Date 14.05.2020
International Application No. PCT/KR2019/014795
International Filing Date 04.11.2019
IPC
B22F 9/24 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
9Making metallic powder or suspensions thereof; Apparatus or devices specially adapted therefor
16using chemical processes
18with reduction of metal compounds
24starting from liquid metal compounds, e.g. solutions
B22F 1/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
22CASTING; POWDER METALLURGY
FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
1Special treatment of metallic powder, e.g. to facilitate working, to improve properties; Metallic powders per se, e.g. mixtures of particles of different composition
Applicants
  • 주식회사 포스코 POSCO [KR]/[KR]
  • 재단법인 포항산업과학연구원 RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE & TECHNOLOGY [KR]/[KR]
Inventors
  • 한길수 HAN, Gil-Soo
  • 엄형섭 EOM, Hyung-Sub
  • 박진균 PARK, Jin-Gyun
Agents
  • 특허법인 씨엔에스 C&S PATENT AND LAW OFFICE
Priority Data
10-2018-013432505.11.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) METHOD FOR MANUFACTURING NEEDLE-SHAPED OR ROD-SHAPED POROUS IRON POWDER AND NEEDLE-SHAPED OR ROD-SHAPED POROUS IRON POWDER MANUFACTURED THEREBY
(FR) PROCÉDÉ DE FABRICATION DE POUDRE D'ÉPONGE DE FER EN FORME D'AIGUILLE OU EN FORME DE TIGE ET POUDRE D'ÉPONGE DE FER EN FORME D'AIGUILLE OU EN FORME DE TIGE AINSI FABRIQUÉE
(KO) 침상 또는 봉상 다공질 철분말 제조 방법 및 이에 의해 제조된 침상 또는 봉상의 다공질 철분말
Abstract
(EN)
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.
(FR)
La présente invention concerne un procédé de fabrication d'une poudre d'éponge de fer en forme d'aiguille ou en forme de tige. Plus précisément, la présente invention concerne un procédé de fabrication d'une poudre d'éponge de fer en forme d'aiguille ou en forme de tige et une poudre d'éponge de fer en forme d'aiguille ou en forme de tige ainsi fabriquée, le procédé comprenant les étapes suivantes consistant : à préparer un chlorure de dichlorure ferreux par concentration d'une solution aqueuse de chlorure ferreux; à séparer un solide-liquide du dichlorure ferreux pour préparer de la poudre de dichlorure ferreux; à oxyder la poudre de dichlorure ferreux; et à réduire le dichlorure ferreux oxydé.
(KO)
본 발명은 침상 또는 봉상의 다공질 철분말을 제조하는 방법에 관한 것으로, 구체적으로는 염화제일철 수용액을 농축하여 이수염화제일철을 제조하는 단계; 상기 이수염화제일철을 고액분리하여 이수염화제일철 분말을 제조하는 단계; 상기 이수염화제일철 분말을 산화시키는 단계; 및 상기 산화된 이수염화제일철을 환원하는 단계를 포함하는 침상 또는 봉상의 다공질 철분말 제조 방법과 상기 제조 방법에 의해 제조된 침상 또는 봉상의 다공질 철분말을 제공하는 것이다.
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