摘要
退锡废液作为线路板行业产生的主要废液之一,数量大,成分复杂,对环境危害严重。文章采用分步中和沉淀法对退锡废液进行处理,最终实现锡、铁、铜金属的有效分离,并制备出含量大于55%的锡泥、饲料级硫酸铜和工业级硝酸钠产品,完全实现资源化再利用。
Spent tin-stripping solution, which has big quantity, complicated composition, is one main kind of waste liquid of PCB industry. It can make serious damage to the environment. The paper provided a method to separate the metal of tin, iron and copper step by step by sedimentation. The content of tin, which was more than 55 % of the tin sludge, feed grade copper sulfate and industrial grade sodium can be obtained after the treatment. The resource can be full),' recycled.
出处
《广东化工》
CAS
2016年第8期130-131,共2页
Guangdong Chemical Industry
关键词
退锡废液
锡泥
金属回收
硝酸钠
spent tin-stripping solution: tin sludge: metal recovery
sodium nitrate