Simultaneous Fluorination and Oxidation of Iridium by Metal Tetrafluorobromates

Iridium is one of the most important platinum group metals and is used in several alloys and in the automotive industry for the purposes of making catalysts. Therefore, its recycling is a very actual challenge for researchers working in the field of urban mining. Reactions of various tetrafluorobromates MBrF4 (M = K, Rb, Cs) and M’(BrF4)2 (M’ = Ba) with Ir metal have been investigated. Compositions of the obtained products have been determined, corresponding reaction schemes have been suggested, and proper conditions for the reactions have been established.