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Metallurgical and Materials Transactions B
Published in: Metallurgical and Materials Transactions B 6/2012

01-12-2012

Effective Dissolution of Platinum by Using Chloride Salts in Recovery Process

Authors: Chiyoko Horike, Kazuki Morita, Toru H. Okabe

Published in: Metallurgical and Materials Transactions B | Issue 6/2012

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Abstract

Platinum (Pt) is typically recovered by employing dissolution processes in aqueous solutions; however, these processes require a long processing time and considerable quantities of acids with strong oxidants owing to the high chemical stability of Pt. In order to develop an efficient dissolution process, we studied chlorination treatments for Pt prior to dissolution. Chlorination was carried out at 673 K to 873 K (400 °C to 600 °C) using copper(II) chloride (CuCl2) as a chlorine source. While pure Pt was insoluble in hydrochloric acid (HCl(aq)), the entire Pt component of the treated sample dissolved in HCl(aq) under certain conditions. Therefore, the proposed method can be used as a new, environmental friendly Pt recovery process.
previous article Phase Equilibria Studies of Cu-O-Si Systems in Equilibrium with Air and Metallic Copper and Cu-Me-O-Si Systems (Me = Ca, Mg, Al, and Fe) in Equilibrium with Metallic Copper
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Metadata
Title
Effective Dissolution of Platinum by Using Chloride Salts in Recovery Process
Authors
Chiyoko Horike
Kazuki Morita
Toru H. Okabe
Publication date
01-12-2012
Publisher
Springer US
Published in
Metallurgical and Materials Transactions B / Issue 6/2012
Print ISSN: 1073-5615
Electronic ISSN: 1543-1916
DOI
https://doi.org/10.1007/s11663-012-9746-z

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