Understanding Synergistic Solvent Extractants for Rhodium

溶剂萃取是一种用于回收铂族金属（铂族金属）的技术，铂族金属因其在英国制造业中的重要性而被归类为关键材料。它是一种可持续和高效的PGM回收方法，可用于除铑外的所有PGM的商业分离。为了净化铑，大多数PGM回收商依赖于不可持续的和能源密集型的沉淀/煅烧工艺，这些工艺不允许配体回收。洛夫和莫里森实验室最近的工作发现，两种简单的萃取剂的组合，这两种萃取剂都不能单独提取铑，但可以通过溶剂萃取协同回收铑。

Solvent extraction is a technology used to recycle platinum group metals (PGMs), which are classed as critical materials because of their importance in UK manufacturing. It is one of the more sustainable and efficient processes in PGM recycling, and can be used commercially to separate all PGMs except rhodium. To purify rhodium, most PGM recyclers depend on unsustainable and energy intensive precipitation/calcination processes which do not allow for ligand recycling. Recent work in the Love and Morrison labs discovered that a combination of two simple extractants, neither of which will extract rhodium on its own, can result in the synergistic recovery of rhodium by solvent extraction.