Title:
白金族金属の沈殿分離方法
Document Type and Number:
Japanese Patent JP6923195
Kind Code:
B2
Abstract:
To provide a palladium precipitation and separation method that can separate efficiently palladium with high industrial value.SOLUTION: Adding of a pyridine compound having a halogen group as a substituent to a hydrochloric acid solution having a platinum group metal makes it possible to precipitate and recover selectively, from the platinum group metal, divalent platinum group metal ions, or divalent platinum group metal ions and tetravalent platinum group metal ions. Particularly, when 2-halogenated pyridine is used, only palladium ions as the divalent platinum group metal ions can be precipitated.SELECTED DRAWING: Figure 6
Inventors:
Tomoya Suzuki
Koichi Narita
Takeshi Ogata
Koichi Narita
Takeshi Ogata
Application Number:
JP2017181673A
Publication Date:
August 18, 2021
Filing Date:
September 21, 2017
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
International Classes:
C22B11/00; C02F1/62; C22B3/44
Domestic Patent References:
| JP2005194546A | ||||
| JP50057024A |