MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Pyrometallurgical Recovery of Gallium from GaN Semiconductor through Chlorination Process Utilizing Ammonium Chloride
Kazuki NishinakaOsamu TerakadoHaruki TaniMasahiro Hirasawa
Author information
JOURNALS FREE ACCESS FULL-TEXT HTML

2017 Volume 58 Issue 4 Pages 688-691

Details
Abstract

Pyrometallurgical chlorination process has been examined for the recovery of gallium from gallium nitride, GaN, a promising semiconductor material. It was found that gallium was successfully recovered as volatile gallium chloride by thermal treatment of GaN powder in the presence of ammonium chloride. All gallium could be recovered as volatile species at 500℃. The results indicate that gallium can be extracted from complex mixture of semiconductor materials or wastes through this process. The influence of reaction conditions, such as reaction temperature and composition of ammonium chloride, was examined.

Information related to the author
© 2017 The Japan Institute of Metals and Materials
Previous article Next article
feedback
Top