Title:
NOBLE METAL RECOVERY METHOD
Document Type and Number:
Japanese Patent JP2021031728
Kind Code:
A
Abstract:
To provide a noble metal recovery method in which the noble metal can be recovered directly from a noble metal ion-containing aqueous solution by a simple reduction treatment, which is excellent in terms of productivity and cost, and, in addition, since noble metal is recovered directly from noble metal ion, the amount of waste generated is small and the method is environmentally friendly.SOLUTION: The noble metal recovery method of the present invention includes a reduction step in which a noble metal ion-containing solution is subjected to reduction treatment in the presence of a chalcogen element and a reducing agent.SELECTED DRAWING: None
Inventors:
TAKAO KOICHIRO
IKEDA YASUHISA
IKEDA YASUHISA
Application Number:
JP2019153072A
Publication Date:
March 01, 2021
Filing Date:
August 23, 2019
Export Citation:
Assignee:
TOKYO INST TECH
International Classes:
C22B11/00; C22B9/00
Domestic Patent References:
| JP2014019921A | 2014-02-03 | |||
| JP2013181186A | 2013-09-12 | |||
| JP2013204137A | 2013-10-07 | |||
| JP2002088419A | 2002-03-27 | |||
| JPS5792147A | 1982-06-08 | |||
| JP2012229252A | 2012-11-22 | |||
| JP2003064278A | 2003-03-05 | |||
| JPS5916938A | 1984-01-28 | |||
| JPS55164042A | 1980-12-20 | |||
| JPS4710804A |
Foreign References:
| US20060024438A1 | 2006-02-02 |
Attorney, Agent or Firm:
Sumio Tanai
Nishizawa Kazumi
Hirotaka Haruta
Norihiko Ara
Taichi Sakai
Nishizawa Kazumi
Hirotaka Haruta
Norihiko Ara
Taichi Sakai