Journal of MMIJ
Online ISSN : 1884-0450
Print ISSN : 1881-6118
ISSN-L : 1881-6118
Technical Report
Recycling of Precious Metals at Tanaka Kikinzoku Kogyo K.K.
Akihiko OKUDA
Author information
JOURNAL FREE ACCESS

2007 Volume 123 Issue 12 Pages 737-740

Details
Abstract

Tanaka Kikinzoku Kogyo K. K. is refining and recovering the precious metals (Au, Ag, and six platinum group metal elements) and manufacturing their products. In this report, typical recycling processes for the precious metals from used electronic device, plating and deposition jigs, and the scrap containing platinum group metals such as automobile catalysts are described. These processes consist of the accurate evaluation, acid or cyanate dissolution, separation by precipitation, cementation, solvent extraction, or ion exchange, and recovery by electrowinning or chemical reduction.

Content from these authors
© 2007 The Mining and Materials Processing Institute of Japan
Previous article Next article
feedback
Top