Title:
A recovery method of palladium
Document Type and Number:
Japanese Patent JP5934047
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To efficiently recover palladium at a high recovery from a palladium-containing waste liquid in which an inorganic sulfur oxide such as sodium sulfite is included without requiring a complicated operation.SOLUTION: The method for recovering palladium comprises: a step of controlling the pH of a palladium-containing aqueous solution comprising an inorganic sulfur oxide to 2 or less; a step of adding a reducing agent to the palladium-containing aqueous solution to reduce palladium; and a step of adding a cationic surfactant to the palladium-containing aqueous solution and flocculating and depositing the reduced palladium to recover palladium.
Inventors:
Taketomi Akito
Application Number:
JP2012161286A
Publication Date:
June 15, 2016
Filing Date:
July 20, 2012
Export Citation:
Assignee:
Tanaka Kikinzoku Kogyo Co., Ltd.
International Classes:
C22B11/00; C02F1/54; C02F1/70; C22B3/44
Domestic Patent References:
| JP47044858A | ||||
| JP55164044A |
Attorney, Agent or Firm:
Eiichiro Shimazaki