从失效汽车尾气净化催化剂中回收铂族金属——亚砜萃取工艺研究

Recovery of PGMs from the Spent Automobile Catalysts--Research on the Extraction Technology by MSO

进行了利用亚砜从失效汽车尾气净化催化剂所得溶液中萃取分离铂、钯、铑的工艺研究,提出了Pt-Pd、Pt-Rh、Pt-Pd-Rh分离的工艺流程。在单槽容积为2.5L的混合—澄清萃取槽中的台架试验表明,Pt、Pd直收率均大于90%。

This paper reported the technical research of separating Pt,Pd,Rh from the solutions of processing automobile catalyst scraps by solvent extraction,proposed the flow sheets of separating Pt-Pd,Pt-Pd-Rh.The experimental results on a pilot-scale show that the recovering rate of Pt and Pd is high,over 90%.