Method for recycling copper from scrap circuit boards
There are mainly chemical methods and physical methods for extracting copper from waste circuit boards. The chemical method is to crush the circuit board, incinerate to obtain ash, and then use sulfuric acid-hydrogen peroxide to strip the copper in the ash, and use electrolysis to electrolyze the copper sulfate leaching solution to recover elemental copper. Chemical methods are more complicated to operate and are prone to environmental pollution. Here we mainly introduce the physical method to extract copper on the circuit board.
Circuit board copper recovery equipment
The physical extraction and recovery of copper on waste circuit boards requires the use of waste circuit board recycling and processing equipment. Its working principle is to sort copper and resin powder according to the principle of different specific gravity and electrification, and recycle the copper on waste circuit boards for reuse.
Waste circuit board recycling equipment includes dismantling machines, shredders, crushers, rotary vibrating screens, airflow separators, electrostatic separators and other single machines. The stand-alone machines operate in coordination with each other. After crushing and sorting, the copper on the waste circuit board can be sorted out, and the purpose of recycling can be achieved.
Waste circuit board recycling equipment realizes the value of waste circuit board recycling and reuse. Waste circuit boards are crushed through waste circuit board recycling equipment, and the crushed metal and resin powder are sorted through an air flow specific gravity separator. According to the weight difference of copper and resin powder, the air flow specific gravity separator sorts out the copper particles with large metal particles and heavy specific gravity, and the remaining small particles of copper and resin powder are subjected to secondary separation through the electrostatic separator.
The electrostatic separator uses the conductivity principle of the resin powder to separate the resin powder in a closed high-voltage magnetic field, and the rest will be copper metal.
According to the working principle and treatment method of the waste circuit board recycling equipment above, you can recycle the copper on the waste circuit board! SUNY GROUP is a manufacturer specializing in the production of waste circuit board recycling equipment. For more information about the equipment, please feel free to contact us for consultation!
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