LK-C2萃取分离废线路板酸浸液中的铁和镍
张小娟，李鑫钢，曹宏斌
- 天津大学化工学院；天津大学精馏技术国家工程研究中心；中国科学院过程工程研究所绿色过程工程院重点实验室
Separation of Fe and Ni by solvent extraction with LK-C2 from nitric acid leaching solution of wasted printed circuit boards
ZHANG Xiaojuan，LI Xingang，CAO Hongbin
- School of Chemical Engineering and Technology，Tianjin University；National Engineering Research Center of Distillation Technology，Tianjin University；Key Laboratory of Green Process and Engineering，Institute of Process Engineering，Chinese Academy of Sciences
摘要： 针对废线路板酸浸液的硝酸介质体系，探讨了用LK-C2分离铁（Ⅲ）和镍的萃取及反萃条件。pH值为3.00和10.00时分步采用20%LK-C2-煤油二级逆流萃取铁（Ⅲ）和镍，萃取率分别为96.14%和99.35%。分别采用2.00 mol/LHCl二级逆流反萃回收铁和3.00 mol/LH2SO4三级逆流反萃回收镍，反萃率分别为99.18%和98.32%。