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《Environmental Science》 2010-12
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Newly Leaching Method of Copper from Waste Print Circuit Board Using Hydrochloric Acid/n-butylamine/Copper Sulfate

WANG Hong-yan,CUI Zhao-jie,YAO Ya-wei(School of Environmental Science and Engineering,Shandong University,Ji'nan 250100,China)  
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.
【Fund】: 山东省省级环保产业技术研发专项(鲁财建指[2007]132)
【CateGory Index】: X705
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