Study on Removal of Copper Rice Paint Film and Copper Recovery Efficiency

摘要

The effects of chromite sand particle size, mixing ratio of sand and copper wire, motor speed and collision friction time on the removal of copper wire paint film and copper recovery efficiency were studied. The results show that the conditions for efficient copper recovery are: chromite sand particle size is 0.40mm, chromite sand and copper wire mixing ratio is 1:1, centrifugal motor speed is 2700r/min, collision friction time is 2min. Under these conditions, the polyester enameled copper wire film was completely removed and the copper recovery rate reached 98.75%.