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- Title
A Process for Extracting Precious Metals from Spent Printed Circuit Boards and Automobile Catalysts.
- Authors
Byung-Su Kim; Jae-Chun Lee; Seung-Pil Seo; Young-Koo Park; Hong Yong Sohn
- Abstract
In this work, a novel process to simultaneously extract precious metals such as gold, palladium, and platinum from spent printed circuit boards (PCBs) and honeycomb-type auto catalysts by smelting without the addition of any collector metals has been developed. The process uses metal components such as copper, tin, and iron contained in spent PCBs as the collector metal and spent auto catalysts as a slag formative. In each experiment, spent PCBs and auto catalysts were crushed, incinerated, and melted after adding fluxes and carbon. Up to 90% of the gold, palladium, and platinum in the raw materials were extracted in a Cu-Sn alloy phase.
- Subjects
METALLURGY; METALS; GOLD; PALLADIUM; PLATINUM; PRINTED circuits; COPPER; TIN; IRON; ALLOYS
- Publication
JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2004, Vol 56, Issue 12, p55
- ISSN
1047-4838
- Publication type
Article
- DOI
10.1007/s11837-004-0237-9