废电路板与集成电路稀贵金属提取工艺的比对与选取原则

Comparison and selection principles of the extraction process of rare precious metals from waste printed circuit boards and integrated circuits

废弃电路板与集成电路中存在较高含量的稀贵金属,采用先进工艺将其高收率提取出来,不仅具有重要经济意义,也可以有效保护生态环境。通过分析我国回收处理与再利用现状,结合国内外技术与设备特点,兼顾基金补贴支撑下的产业建设特点,对于相关工艺进行比对研究,并针对不同企业特点提出技术和工艺选取原则,以促进产业向精细化和高值化方向发展。

There is a high content of rare precious metal in the waste circuit board and the integrated circuit. It can be extracted from the high yield with advanced technology, which is not only of great economic significance, but also beneficial to the ecological environment effectively. Through the analysis of the current situation of recycling and reuse in China, combining the characteristics of technology and equipment home and abroad, the related technologies were compared taking into account the characteristics of the industrial construction with fund subsidies. The principles of technology and process selection for different enterprise characteristics were put forward, in order to promote the development of the industry oriented to fine and high value utilization.