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Title:
有価金属回収方法
Document Type and Number:
Japanese Patent JP6369834
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a valuable metal recovery method capable of recovering a high-purity noble metal at low cost by peeling and recovering the noble metal in a solid state, by dissolving a base metal of a noble metal plated article.SOLUTION: There is provided a valuable metal recovery method for recovering a valuable metal from a noble metal plated article formed by plating a base metal and a noble metal on the surface of a member. The valuable metal recovery method includes: an immersion step for immersing the noble metal plated article into a treatment solution containing ferric chloride; and a valuable metal separation recovery step for separating and recovering from the treatment solution, the noble metal peeled off from the member by dissolving the base metal and the member, or by dissolving the base metal in the immersion step.SELECTED DRAWING: None

Inventors:
Eiji Inoue
Nobuhiro Inoue
Yuji Komori
Furui Nishi Masakazu
Hattori Tsukasa
Application Number:
JP2014206606A
Publication Date:
August 08, 2018
Filing Date:
October 07, 2014
Export Citation:
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Assignee:
Astec Co., Ltd.
International Classes:
C22B7/00; C22B3/04; C22B3/46; C22B11/00; C22B15/00; C22B23/00
Domestic Patent References:
JP2007031760A
JP2010059539A
JP2013230437A
JP2014069137A
JP52133830A
Attorney, Agent or Firm:
Patent Business Corporation Koei Patent Office
Takeshi Takamatsu
Toshiyuki Ozawa