Title:
白金族元素の回収方法
Document Type and Number:
Japanese Patent JP6730706
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for recovering a platinum group element(s) capable of dissolving a platinum element(s) into an ion liquid at high efficiency and easily recovering the same.SOLUTION: Provided is a method where, from a water phase containing one or more kinds of platinum group elements, the platinum group element(s) is selectively recovered, comprising: an elution step where one or more kinds of platinum group elements are eluted from a resource containing the one or more kinds of platinum elements with acid to elute the one or more kinds of platinum elements, and a water phase containing the one or more kinds of platinum group elements is prepared; a solvent extraction step where at least one kind of the platinum group elements is selectively extracted into an organic phase made of an ion liquid from the water phase; and an electrolytic deposition step where, after the solvent extraction step, electrolytic deposition is performed with the organic phase as an electrolytic bath, thus at least one kind of platinum group metal is recovered from the organic phase.SELECTED DRAWING: None
Inventors:
Matsuhiko Masahiko
Application Number:
JP2015216956A
Publication Date:
July 29, 2020
Filing Date:
November 04, 2015
Export Citation:
Assignee:
National University Corporation Yokohama National University
International Classes:
C22B11/00; B09B3/00; C22B3/06; C22B3/26; C22B3/42; C22B3/44; C22B59/00; C25C1/20
Domestic Patent References:
| JP2012149318A | ||||
| JP2011122242A | ||||
| JP2015042782A |
Foreign References:
| US20140299543 |
Other References:
B.Raju et al.,Separation of platinum and rhodium from chloride solutions containing aluminum, magnesium and iron using solvent extraction and precipitation methods,Journal of Hazardous Materials,2012年,Vol. 227-228,Page. 142-147
Attorney, Agent or Firm:
Shiga International Patent Office
Masatake Shiga
Yasushi Matsunuma
Masato Iida
Akio Sato
Masatake Shiga
Yasushi Matsunuma
Masato Iida
Akio Sato