PLASMA DEVICE FOR PRODUCTION OF METAL POWDER

Title:

PLASMA DEVICE FOR PRODUCTION OF METAL POWDER

Document Type and Number:

WIPO Patent Application WO/2013/084650

Kind Code:

A1

Abstract:

A plasma device which is provided with: a reaction container to which a metal starting material is supplied; a plasma torch which generates plasma between itself and the metal starting material within the reaction container, thereby evaporating the metal starting material and producing a metal vapor; a carrier gas supply unit which supplies, into the reaction container, a carrier gas for conveying the metal vapor; and a cooling tube which cools the metal vapor that is conveyed from the reaction container by the carrier gas, thereby producing a metal powder. The cooling tube is provided with: an indirect cooling section for indirectly cooling the metal vapor that is conveyed from the reaction container by the carrier gas and/or the metal powder; and a direct cooling section for directly cooling the metal vapor and/or the metal powder, said direct cooling section being continued to the indirect cooling section. At least a part of the inner wall of the indirect cooling section is provided with projections and/or recesses.

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Inventors:

SHIMIZU FUMIYUKI (JP)
MAEKAWA MASAYUKI (JP)
KAWAGUCHI SHUSAKU (JP)

Application Number:

PCT/JP2012/078914

Publication Date:

June 13, 2013

Filing Date:

November 08, 2012

Export Citation:

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Assignee:

SHOEI CHEMICAL IND CO (JP)

International Classes:

B22F9/14; B01J19/08; H05B7/18; H05H1/32

Foreign References:

JP2004036005A	2004-02-05
JPS58153533A	1983-09-12
JPS63221842A	1988-09-14
JPH0630674U	1994-04-22
US20070221635A1	2007-09-27
US6379419B1	2002-04-30
JP2011263165A	2011-12-01

Other References: