SILVER POWDER AND METHOD FOR PRODUCING SAME

WIPO Patent Application WO/2013/125686

A1

Provided are: a method for producing a silver powder, by which a silver powder that has an average particle diameter of 0.3-2.0 μm and a narrow particle size distribution is able to be produced with high productivity at low cost; and a silver powder which is produced by the production method. The present invention is a method for producing a silver powder, wherein a reducing agent solution and a silver solution containing a silver complex are quantitatively and continuously supplied into a channel respectively, and the silver complex is quantitatively and continuously reduced in a reaction liquid that is obtained by mixing the silver solution and the reducing agent solution in the channel. In this method for producing a silver powder, the reaction liquid contains a dispersant and the silver concentration in the reaction liquid is controlled to be within the range of 5-75 g/L.

OKABE YOSHIHIRO (JP)
ITO KENYA (JP)
OKADA SHUUJI (JP)
NISHIMOTO MASAMU (JP)
MURAKAMI AKIHIRO (JP)
ISHIKAWA SHINTARO (JP)

PCT/JP2013/054546

August 29, 2013

February 22, 2013

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SUMITOMO METAL MINING CO (JP)
OKABE YOSHIHIRO (JP)
ITO KENYA (JP)
OKADA SHUUJI (JP)
NISHIMOTO MASAMU (JP)
MURAKAMI AKIHIRO (JP)
ISHIKAWA SHINTARO (JP)

B22F9/24; B22F1/00; B22F1/052; H01B5/00; H01B13/00

JP2004285454A	2004-10-14
JP2011001581A	2011-01-06

KOIKE, Akira et al. (JP)
Akira Koike (JP)

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