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Title:
METHOD FOR SEPARATING AND RECOVERING PLATINUM GROUP ELEMENT
Document Type and Number:
Japanese Patent JP2011195935
Kind Code:
A
Abstract:

To provide a method for economically separating and recovering the whole kinds of platinum group elements as enriched material in high yield from the platinum group element-containing solution coexisting low-concentrated platinum group elements and high concentrated impurity elements, generated in a nonferrous metal smelting process or a platinum group element-containing material treating process.

The method for separating and recovering the platinum group elements has the peculiarity, that after separating and removing chloro-complex coordinated with chloride-ion in the platinum group element-ion from the platinum group element-containing material and element for disturbing the formation of complex salt with positive-ion having larger ion-radius than the ion-radius of potassium-ion from the platinum group element-ion; hydrochloric solution of the platinum group elements after separating and removing as the above and a salt-ion formable as complex salt with the chloro-comlex, which is the positive-ion having larger ion-radius than the ion radius of the potassium-ion and is coordinated with the chloride-ion in the platinum group element-ion, are mixed.


Inventors:
ASANO SATOSHI
Application Number:
JP2010066997A
Publication Date:
October 06, 2011
Filing Date:
March 23, 2010
Export Citation:
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Assignee:
SUMITOMO METAL MINING CO
International Classes:
C22B11/00; C22B3/04; C22B3/44
Attorney, Agent or Firm:
Masayuki Masabayashi
Hayashi Ichiyoshi