Invention Grant
- Patent Title: Silver powder and method for producing same
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Application No.: US14380828Application Date: 2013-02-22
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Publication No.: US10022799B2Publication Date: 2018-07-17
- Inventor: Yoshihiro Okabe , Kenya Ito , Shuuji Okada , Masamu Nishimoto , Akihiro Murakami , Shintaro Ishikawa
- Applicant: SUMITOMO METAL MINING CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: SUMITOMO METAL MINING CO., LTD.
- Current Assignee: SUMITOMO METAL MINING CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Oliff PLC
- Priority: JP2012-038414 20120224
- International Application: PCT/JP2013/054546 WO 20130222
- International Announcement: WO2013/125686 WO 20130829
- Main IPC: B22F9/24
- IPC: B22F9/24 ; B22F1/00 ; C22C5/06 ; H01B1/02

Abstract:
The present invention provides a method for producing a silver powder, the method being capable of producing a silver powder with high productivity and at low cost, the silver powder having an average particle diameter of 0.3 to 2.0 μm and a narrow particle size distribution, and provides a silver powder produced by the production method. According to the present invention, the method for producing a silver powder includes: quantitatively and continuously supplying each of a silver solution containing a silver complex and a reductant solution to a flow path; and quantitatively and continuously reducing a silver complex in a reaction solution obtained by mixing the silver solution with the reductant solution in the flow path, wherein the reaction solution is made to contain a dispersant, and also a silver concentration in the reaction solution is adjusted to be in a range of 5 to 75 g/L.
Public/Granted literature
- US20150017465A1 SILVER POWDER AND METHOD FOR PRODUCING SAME Public/Granted day:2015-01-15
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