线路板蚀刻废液资源化处理清洁生产工艺

摘要

The zero-emission technology for resource utilization of circuit board spent etching solution developed by Nanxi Chemical Plant, Baiyun District of Guangzhou City was studied. The copper oxide was obtained by gravity separation of shaking table. The am-monia was recycled by the process of quicklime caustic distillation. The optimum technology conditions were determined by orthogonal experiment. Under the optimum conditions, the purity and recovery efficiency of generated copper oxide are 96.5% and 97.1%, re-spectively.%研究了广州市白云区南溪化工厂开发的一套对线路板蚀刻废液资源化处理零排放新工艺.该工艺利用摇床重力分选得到氧化铜,滤液加生石灰碱化加热回收氨.通过正交试验确定了最佳工艺条件,得到的氧化铜纯度为96.5%,回收率达97.1%.