发明名称 銀粉及びその製造方法
摘要 PROBLEM TO BE SOLVED: To provide silver powder that has high dispersibility in paste and good sinterability at low temperatures, and a method for producing the silver powder in high productivity and low costs.SOLUTION: The silver powder can be obtained by: adding a reducing agent mixture comprising ascorbic acid and a dispersant to a silver solution obtained by dissolving silver chloride in aqueous ammonia; obtaining silver particles on the surface of which an aliphatic acid is adhered by adding the aliphatic acid of from 0.15 mass% or more to 1 mass% or less to the obtained silver particles slurry on the basis of the mass of the silver particles; washing the obtained silver particles with aqueous sodium hydroxide; and further washing the obtained silver particles with water. The silver powder has a chlorine content of 60 mass ppm or less, a carbon content of 0.1-0.3 mass%, and a tap density of 4 g/cmor more.
申请公布号 JP6065788(B2) 申请公布日期 2017.01.25
申请号 JP20130187093 申请日期 2013.09.10
申请人 住友金属鉱山株式会社 发明人 岡田 修二;岡部 良宏;伊藤 研哉;幕田 富士雄
分类号 B22F1/00;B22F1/02;B22F9/24;C22C5/06;H01B5/00;H01B13/00 主分类号 B22F1/00
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