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진연호,장대환,정항철,이기웅,Jin, Y.H.,Jang, D.H.,Jung, H.C.,Lee, K.W. 한국분말야금학회 2014 한국분말재료학회지 (KPMI) Vol.21 No.2
Fundamental experiences have been studied for development of pre-treatment process of Sn by-products such as solders. Dry and wet separation/recovery processes were considered by the differences of physical properties. The by-products, which are analyzed by solder metal and oxides. The metal and oxide were simply separated by dry ball-milling process for 12 hours, after that recovery metal powder might be reusable as lead or lead-free solders. In terms of wet separation process, samples were dissolved in $HNO_3+H_2O_2$ and the precipitation were analyzed by $SnO_2$. Overall efficiency of recovery might be increasing via developing simple pre-treatment process.