Heavy metals content in printed circuit board
Along with the electronic products renewal speed, as the products constitute the main part of the increasing amount of waste printed circuit boards, scrap PCB metal contained in the total quality score as high as 30% above, including Cu 10% - 10%, Pb is 1% - 5%, Ni is 1% - 3%. Different nature, different function metal species and content in the circuit boards of electronic products have very big difference.
For PCB heavy metals research mostly focused on the utilization and processing of precious metals in the surrounding environment and the influence of the circuit board recycling process, etc., the lack of clear for PCB material qualitative and quantitative determination method of heavy metals in the building type and content of heavy metals in PCB qualitative and quantitative analysis method of fast and efficient disposal and resource recovery of metals in the circuit board has the vital significance.
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