Title:
貴金属の分離回収方法及びその方法によって回収される貴金属微粒子
Document Type and Number:
Japanese Patent JP7217872
Kind Code:
B2
Abstract:
To provide a separation recovery method of a precious metal capable of recovering as precious metal fine particles according to a convenient and less expensive method.SOLUTION: A method of recovering a precious metal using chitosan or a chitosan derivative includes steps of: obtaining a chitosan film by forming chitosan or a chitosan derivative in film; absorbing the precious metal ion by the chitosan film by adding the chitosan film in a solution containing the precious metal ion; and detaching as precious metal fine particles by reducing the precious metal ion absorbed by the chitosan film.SELECTED DRAWING: Figure 2
Inventors:
Yuba Baba
Kyohei Kanoya
Kyohei Kanoya
Application Number:
JP2019039583A
Publication Date:
February 06, 2023
Filing Date:
March 05, 2019
Export Citation:
Assignee:
National University Corporation Miyazaki University
International Classes:
C22B11/00; B01D15/00; B01J20/22; C08B37/08; C08K3/08; C08L5/08; C22B3/24; C22B3/44; C22B7/00
Domestic Patent References:
| JP2011001596A | ||||
| JP9165404A | ||||
| JP2000264902A | ||||
| JP2014004518A | ||||
| JP2016040032A | ||||
| JP4036425A | ||||
| JP6145727A | ||||
| JP1287211A | ||||
| JP2016125110A |
Foreign References:
| KR1020180124701A | ||||
| WO2012102286A1 |
Attorney, Agent or Firm:
Akemi Arima