Title:
A recovery method of platinoid elements
Document Type and Number:
Japanese Patent JP6030005
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for recovering high-purity platinum group elements in high yields.SOLUTION: The provided method for recovering platinum group elements includes a step of separating, by percolating, with a nitric acid solution, and filtering an alloy including platinum group elements, the alloy into a residue including platinum group elements as main components and a percolate including non-platinum group elements as main components, a step of converting the platinum group elements into a chloride complex of platinum group element ions by dissolving, into a mixed solution consisting of hydrochloric acid and an oxidant, the residue including the platinum group elements as main components, and a step of inducing, by adding the chloride of a monovalent cation to the solution including the chloride complex of the platinum group element ions, the deposition of crystals of the platinum group elements and then filtering and recovering the crystals.
Inventors:
Kazuto Yagi
Application Number:
JP2013045023A
Publication Date:
November 24, 2016
Filing Date:
March 07, 2013
Export Citation:
Assignee:
JX Nippon Mining & Metals Co., Ltd.
International Classes:
B09B3/00; C22B11/00; C01G55/00; C22B3/04; C22B3/44; C22B7/00
Domestic Patent References:
| JP61217536A | ||||
| JP2011195935A | ||||
| JP2012219314A | ||||
| JP2009041047A | ||||
| JP2009097024A | ||||
| JP2008527165A | ||||
| JP2007302944A | ||||
| JP2006130387A |
Other References:
柴田隼次他1名,貴金属のリサイクル技術,資源と素材,2002年12月 5日,vol.118 No.1,p.1-8
Attorney, Agent or Firm:
Isamu Ogoshi
Ikki Kogoshi
Ikki Kogoshi