摘要
采用盐酸-正丁胺-硫酸铜混合体系,以铜为目标模拟物,通过改变盐酸浓度、正丁胺浓度、硫酸铜质量、温度等条件,建立并优化了废旧线路板中铜的浸出方法.结果表明,在盐酸浓度为1.75 mol/L、正丁胺浓度为0.25 mol/L、硫酸铜质量为0.96 g、温度为50℃的条件下,8 h后0.25 g铜可以完全被浸出.在此条件下,9 h后1 g废旧线路板样品中铜的浸出率可以达到95.31%.该体系对铜有较好的浸取效果,有反应条件温和、浸出液可以再利用等优点.
A newly leaching method of copper from waste print circuit board was established by using hydrochloric acid-n-butylamine-copper sulfate mixed solution.The conditions of leaching were optimized by changing the hydrochloric acid,n-butylamine,copper sulfate,temperature and other conditions using copper as target mimics.The results indicated that copper could be leached completely after 8 h at 50℃,hydrochloric acid concentration of 1.75 mol /L,n-butylamine concentration of 0.25 mol /L,and copper sulfate mass of 0.96 g.Under the conditions,copper leaching rates in waste print circuit board samples was up to 95.31% after 9 h.It has many advantages such as better effects,low cost,mild reaction conditions,leaching solution recycling.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2010年第12期3099-3103,共5页
Environmental Science
基金
山东省省级环保产业技术研发专项(鲁财建指[2007]132)
关键词
废旧线路板
盐酸-正丁胺-硫酸铜
浸出
waste print circuit board
hydrochloric acid /n-butylamine /copper sulfate
leaching
