摘要
综述了热解技术在废旧印刷电路板(printed c ircu it board,PCB)处理及资源化中应用的研究状况。热解技术可以改善和提高PCB中金属物质的回收效果,减少污染。同时,以热解为基础的PCB中非金属物质回收技术也有着很好的发展前景。PCB热解动力学的研究表明其在1000℃以下的热解过程可划分为分别服从不同反应机理的2个阶段。PCB热解产物中的油、气产物可以回收作为化工原料或燃料。PCB热解过程中含溴阻燃剂的转化和迁移规律以及热解产物中含溴污染物的控制和脱除、热解技术与其他PCB资源化技术的合理有效整合是今后研究的重点。
The survey reviews the application of pyrolysis in recycle and disposal of waste PCB （printed circuit board）. Pyrolysis can improve the performance of processes aiming at recycling metal materials in the PCB and lower the pollution. Pyrolysis-based non-metal materials recycle methods are also very promising. Research on thermal dynamics of PCB pyrolysis reveals that the pyrolysis process under 1000 ℃ can be divided into two stages which comply to different mechanisms respectively. The liquid and gas pyrolysis products can be recycled as raw chemical materials as well as fuel. Transformation and transportation of brominated flame retardants during pyrolysis, control and elimination of brominated pollutants and proper integration of pyrolysis with other recycle techniques are of great importance, in future research.
出处
《环境污染治理技术与设备》
CSCD
北大核心
2006年第4期107-110,119,共5页
Techniques and Equipment for Environmental Pollution Control
关键词
热解
印刷电路板
回收利用
含溴阻燃剂
pyrolysis
printed circuit board （PCB）
recycle
brominated flame retardant
