Gold Recovery from WEEE by Chlorine System

Abstract:

This work compared the effect of nitric acid and chloride acid systems on dissolving precious metals of Electrical and Electronic Equipments (EEE). As a result of the revolution of informatics technology, the production of EEE is rapidly increasing in the world. Due to economic growth, technological innovation and market expansion of EEE there is a significant increase in waste of EEEs (WEEE) that presents a new environmental challenge.The results show that the best recovery of gold can be obtained via aqua regia (3HCl=HNO3), with concentration of 1/10 gr/L. The reaction temperature has little effect on the extent of extraction.

• Periodical: Applied Mechanics and Materials (Volume 330)
• Pages: 123-125
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.330.123
• Online since: June 2013
• Authors: Mahtab Assadian, Mohd Hasbullah Idris, Seyed Morteza Ghaffari Shahri, Babak Gholampour
• Keywords: Aqua Regia, Chlorine System, Gold Recovery

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