METHOD FOR MANUFACTURING METAL MICROPARTICLES

WIPO Patent Application WO/2014/042227

A1

Provided is a method for manufacturing metal microparticles in which the ratio of crystallite diameter to the particle diameter of the metal microparticles is controlled. At least two types of process fluid are used, including a metal fluid in which a metal or a metal compound is dissolved in a solvent, and a reducing agent fluid which includes a reducing agent. Sulfate ions are included in one or both of the metal fluid and the reducing agent fluid. The process fluid is mixed in a fluid thin film formed between at least two processing surfaces, at least one of which rotates relative to the other, and which are disposed facing each other and capable of approaching and separating from each other, and metal microparticles are precipitated. The present invention is characterized in that at this time, the ratio (d/D) of the crystallite diameter (d) of the metal microparticles to the particle diameter (D) of the metal microparticles is controlled by controlling the mole ratio of metal and sulfate ions in the mixed process fluid.

MAEKAWA MASAKI (JP)
ENOMURA MASAKAZU (JP)

PCT/JP2013/074756

March 20, 2014

September 12, 2013

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M TECH CO LTD (JP)

B22F9/24; B01J2/14; B22F1/052

WO2009008390A1	2009-01-15
WO2012014530A1	2012-02-02
WO2012124046A1	2012-09-20
WO2009008390A1	2009-01-15
WO2013008706A1	2013-01-17

JP2008031526A	2008-02-14
JP2012092295A	2012-05-17
JP5261780B1	2013-08-14
JP2007197836A	2007-08-09
JP2011195888A	2011-10-06
JP2009024254A	2009-02-05
JP2007169680A	2007-07-05
JP2006028637A	2006-02-02
JP2008255377A	2008-10-23
JP2004124257A	2004-04-22
JP2006097116A	2006-04-13
JP2012052240A	2012-03-15

See also references of EP 2896476A4

SAMEJIMA TAKENOBU (JP)
Takenobu Sameshima (JP)

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