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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.54  No.12 (2013)  >  pp.2271-2275

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Indium Recovery from Bearing Alloy via Pyrometallurgical Chlorination Process Utilizing Ammonium Chloride

Osamu Terakado1), Hiroaki Ishikawa1), Masahiro Hirasawa1)
1) Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University

The chlorination process utilizing ammonium chloride as chlorination reagent has been employed for the recovery of elements with emphasis on indium from bearing alloy through vaporization of the chlorides. It was found that the chlorination took place by the heating of the model sample in the presence of ammonium chloride. The influence of the process parameters, such as reaction temperature and gas flow rate, has been investigated. The addition of activated carbon resulted in the adsorption of chloride on the carbon surface. The present result indicates the possibility of the recovery process through transport of the target element from the sample to pores of activated carbon.

bearing alloy, recovery, indium, chlorination, ammonium chloride

Received: May 30, 2013
Accepted: September 12, 2013 , Published online: November 25, 2013
Copyright © 2013 The Japan Institute of Metals and Materials



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