Title:
A separation recovery method of platinoid elements
Document Type and Number:
Japanese Patent JP5984020
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for separating and recovering platinum group elements capable, while preserving a performance of adsorbing, selectively at a high adsorption ratio in the co-presence of high-concentration impurity elements, platinum group elements within an aqueous chloride solution, of eluting, at a high elution ratio, adsorbed platinum group elements.SOLUTION: The provided method for separating and recovering platinum group elements is a method for separating and recovering platinum group elements from an acidic solution including platinum group elements and impurity elements wherein the following steps are executed in proper order: a first step of inducing, by contacting the acidic solution with a resin consisting of a water-insoluble polymer alloy constituted by an amino group-containing polymer and a polymer other than amines, the adsorption, onto the resin, of platinum group elements included within the acidic solution; a second step of washing the post-adsorption resin; and a third step of inducing the elution of the platinum group elements from the resin thus washed.
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Inventors:
Satoshi Asano
Naoko Kikuta
Naoko Kikuta
Application Number:
JP2013057691A
Publication Date:
September 06, 2016
Filing Date:
March 21, 2013
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
C22B11/00; B01J20/26; B01J20/34; C02F1/28; C22B3/24
Domestic Patent References:
| JP2004131745A | ||||
| JP2011219747A | ||||
| JP2011219748A | ||||
| JP2010138430A |
Foreign References:
| WO2007018138A1 |
Attorney, Agent or Firm:
Yoshitaka Oshida
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