title: [Newly leaching method of copper from waste print circuit board using hydrochloric acid/n-butylamine/copper sulfate].
abstract: 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 degrees C, 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.
authors.affiliation: School of Environmental Science and Engineering, Shandong University, Ji'nan 250100, China. whywlw@126.com
authors.forename: Hong-Yan
authors.initials: HY
authors.lastname: Wang
authors.forename: Zhao-Jie
authors.initials: ZJ
authors.lastname: Cui
authors.forename: Ya-Wei
authors.initials: YW
authors.lastname: Yao
mesh_terms: D002082:Butylamines / Q000737:chemistry*; D003300:Copper / Q000302:isolation & purification*; D019327:Copper Sulfate / Q000737:chemistry*; D059029:Electronic Waste / Q000032:analysis; D006851:Hydrochloric Acid / Q000737:chemistry*; D012037:Refuse Disposal / Q000379:methods*
chemical_list: D002082:Butylamines; D003300:Copper; D019327:Copper Sulfate; C032462:n-butylamine; D006851:Hydrochloric Acid