CAJ | 학술논문

以废旧电子印刷线路板中的金属铜为处理对象,采用悬浮电解法制取纯铜粉.选择了4个影响铜粉的纯度、脱落率和电流效率的因素,每个因素3个水平进行正交实验.实验结果表明,硫酸铜的浓度、氯离子的浓度和电流密度对铜粉的纯度、脱落率和电流效率有较大的影响.通过对正交实验结果的分析得山最优的电解条件,在此电解条件下可得到铜粉的纯度99.8%、脱落率99.6%和电流效率99.7%.
이폐구전자인쇄선로판중적금속동위처리대상,채용현부전해법제취순동분.선택료4개영향동분적순도、탈락솔화전류효솔적인소,매개인소3개수평진행정교실험.실험결과표명,류산동적농도、록리자적농도화전류밀도대동분적순도、탈락솔화전류효솔유교대적영향.통과대정교실험결과적분석득산최우적전해조건,재차전해조건하가득도동분적순도99.8%、탈락솔99.6%화전류효솔99.7%.
Copper in wasted printed circuit boards was treated by suspension electrolysis to gain copper powder. The orthogonal experiment was designed with four factors influencing three parameters-purity quotient of copper powder, expulsion rate and current efficiency, three levels for each factor. Results showed that CuSO_4, Cl~- and the density of current significantly influenced the three parameters. The optimized combination of experimental factors was concluded by analyzing outcomes of the orthogonal experiment. Under the best combination, the purity quotient of copper powder was 99.8% , expulsion rate was 99.6% , and current efficiency was 99.7%.