The products characteristics of calcium-basic compounds pyrolysis with waste printed circuit boards (PCB)

摘要

The co-pyrolysis of PCB and calcium-basic compounds was investigated in this paper.The yield of liquid products of simple PCB pyrolysis was the highest and it reached 10.51％.After adding various calcium based waste,the copper foil was basically not corroded during pyrolysis as the calcium based waste adsorbed HBr.After pyrolysis,the organic substances were carbonized and became brittle.Thus,it was quite easy to separate metal from glass fiber cloth and strip off and remove the carbon black on the glass cloth.The Pyro-gas wasn't so seriously influenced by additives.The content of CH4 was 67-70％ while other contents were mainly small molecules such as C2H6,C2H4,C3H8,and C3H6.