Title:
POROUS METAL NANOPOWDER AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2013/111939
Kind Code:
A1
Abstract:
The present invention relates to a porous metal nanopowder and to a method for manufacturing same, and more particularly, to a porous metal nanopowder which: requires a simple manufacturing process; can be manufactured at a relatively low temperature for manufacturing cost reduction; is efficient because physical and chemical nanoprocesses are performed in the same reaction furnace; and is excellent in stability because oxygen gas is discharged from a cooling tower placed between the reaction furnace and a reducing furnace, and to a method for manufacturing same. The present invention comprises: step S1 of supplying oxidized metal powder to the reaction furnace which is heated to a predetermined temperature and to which the oxygen gas is supplied so as to turn the oxidized metal powder into porous oxidized metal nanopowder by heating in an oxygen gas atmosphere; step S2 of supplying the porous oxidized metal nanopowder for cooling to the cooling tower to which nitrogen gas is supplied; and step S3 of supplying the cooled porous oxidized metal nanopowder to the reducing furnace which is heated to a predetermined temperature and to which hydrogen gas is supplied for reduction into metal nanopowder.
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Inventors:
HWANG CHAE-IK (KR)
Application Number:
PCT/KR2012/007703
Publication Date:
August 01, 2013
Filing Date:
September 25, 2012
Export Citation:
Assignee:
HWANG CHAE-IK (KR)
International Classes:
B22F1/00; B22F1/054; B82B3/00
Foreign References:
| KR20020029888A | 2002-04-20 | |||
| KR970000321A | 1997-01-21 | |||
| KR20100124581A | 2010-11-29 | |||
| JP2004211201A | 2004-07-29 |
Attorney, Agent or Firm:
SEAH INTERNATIONAL PATENT AND LAW FIRM (1542-14 Seocho 3-dong, Seocho-gu, Seoul 137-872, KR)
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