摘要
以N902为萃取剂,从废弃印刷线路板氨性浸出液中萃取回收铜,研究萃取剂浓度、相比(O/A)、萃原液初始pH和时间对铜萃取率的影响。结果表明,室温下N902萃取铜最优条件为:萃取剂浓度15%、O/A=1∶2、料液初始pH=10、萃取时间2.5min。在此条件下Cu2+萃取率98.62%,用2mol/L硫酸溶液对负载有机相进行一级反萃4min,Cu2+反萃率达89.91%,其溶液可满足电积提铜的要求。
Copper was extracted with N902 from ammoniacal leaching solution of waste printed circuit boards.The effects of extraction agent concentration,extraction phase ratio（O/A）,initial pH value of extraction solution and extraction time on copper extraction rate were investigated.The results show that copper extraction rate is 98.62% under the optimum conditions including extractant concentration of 15%,O/A=1∶2,initial pH of 10,and extraction time of 2.5min.Stripping rate of copper is 89.91% with 2mol/L sulfuric acid solution for 4min.The solution can meet the requirement of copper electrowinning.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2015年第10期30-33,共4页
Nonferrous Metals（Extractive Metallurgy)
基金
湖北省高等学校青年教师深入企业行动计划项目(XD2012604)
关键词
N902
萃取
铜
废印刷线路板
N902
solvent extraction
copper
waste printed circuit boards
