碱性蚀刻废液回收铜扩试线生产实践郭志文赵常青(河南工信环保科技有限公司)摘要:随着电子工业的发展,印刷电路板生产发展极为迅速,印刷电路板经蚀刻后产生了大量的含铜蚀刻废液,一般多采用电解法、氧化还原法、酸性蚀刻废液与碱性蚀刻废液中和氧化沉淀等方法进行回收蚀刻废液中的金属铜,本文介绍了一种蒸氨→沉淀→电沉积的新型处理工艺,为蚀刻废液资源化利用,提供了一种环保、有效的新型工艺技术
关键词:蚀刻废液蒸氨旋流电解国标铜Abstract:withthedevelopmentofelectronicindustry,printingcircuitboardproductionanddevelopmentisveryrapid,theprintedcircuitboardafteretchingproducedalargenumberofcopperetchingwasteliquid,thegeneraluseofelectrolyticmethod,oxidationreductionmethod,acidetchingsolutionandalkalineetchingsolutionandoxidationandprecipitationmethodtorecoverthewasteliquidinthemetalcopper,thispaperdescribesanewprocessingtechnologyfortheuseofetchingwasteliquid,provideanenvironmentallyfriendly,effectivenewprocesstechnology
Keywords:etchingwasteliquidammoniaevaporationflowelectrolyticcopper1前言随着电子工业的发展,印刷电路板生产发展极为迅速,印刷