Title:
RECOVERY METHOD OF PLATINUM GROUP METAL
Document Type and Number:
Japanese Patent JP2018184628
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a recovery method of platinum group metal for preferentially dissolving platinum group metal with suppressing dissolution of a base material and recovering the platinum group metal for a metallic material with a form that the platinum group metal is plated on the base material.SOLUTION: By using a dissolution liquid manufactured by mixing 3 to 5 pts.vol. of nitric acid with concentration of 67.5 mass% with 1 pts.vol. of hydrochloric acid with concentration of 35 mass%, a material with a form that a platinum group metal is plated on a metallic base material consisting of preferably Ni or an alloy thereof is processed, the platinum group metal is dissolved and recovered while suppressing dissolution of the metallic base material.SELECTED DRAWING: None
Inventors:
NAKAJIMA KOHEI
MAEBA KAZUYA
SOHARA KEN
MAEBA KAZUYA
SOHARA KEN
Application Number:
JP2017085869A
Publication Date:
November 22, 2018
Filing Date:
April 25, 2017
Export Citation:
Assignee:
OKUCHI DENSHI KK
International Classes:
C22B11/00; C22B3/06; C22B7/00
Attorney, Agent or Firm:
Noriyuki Tsujikawa