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ISSN Print: 2394-7500, ISSN Online: 2394-5869, CODEN: IJARPF

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International Journal of Applied Research

Vol. 3, Issue 3, Part J (2017)

Copper extraction from the discarded printed circuit board by leaching

Author(s)
Ashok K Sharma, Sarita Sharma, Usha Bagdi and Priya Gautam
Abstract
Printed circuit boards (PCBs) are currently dumped in landfills or incinerated which is causing a serious environmental harm in the form of toxic gases or leached hazardous compounds. PCBs contain large amounts of precious metals; about 20 wt% copper, 0.04 wt% gold, 0.15 wt% silver, and 0.01 wt% palladium. The extraction of these metals from PCBs is both profitable and environmentally worthwhile. Leaching copper from shredded particles of waste printed circuit boards (PCBs) was carried out in sulphuric acid solution using hydrogen peroxide as an oxidant at room temperature. The influence of system variables by leaching on copper recovery was investigated, such as sulphuric concentration, amount of hydrogen peroxide addition, waste PBCs particle size, presence of cupric ion, temperature and time.
Pages: 634-637  |  902 Views  29 Downloads
How to cite this article:
Ashok K Sharma, Sarita Sharma, Usha Bagdi, Priya Gautam. Copper extraction from the discarded printed circuit board by leaching. Int J Appl Res 2017;3(3):634-637.
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International Journal of Applied Research