Recovery of platinum group metal resources from high-level radioactive liquid wastes by non-contact photoreduction

Trash or treasure? Sustainable noble metal recovery

“…This non-contact photoreduction method has proved successful in recovering three noble metals from high-level radioactive liquid waste. 112 Alcohol was added as a reductant in the mixed system, and the three noble metals were stripped one by one using the distributed pulse radiolysis technique. Almost all of the lanthanide metals were left in the final solution.…”

Extraction of Palladium from Spent Nuclear Fuel Reprocessing Solutions

“…Indeed, using rational spent fuel reprocessing technology, it would be possible to isolate the above valuable elements, but such technologies currently do not exist. However, a number of attempts for their creation have been undertaken [6][7][8][9][10][11][12]. The most common technological method in the SNF reprocessing scheme is extraction, which allows, in particular, to isolate noble metal ions from process solutions and concentrate them in a certain form [1].…”

Pt/C electrocatalysts derived from recycled Pt/Re mixed solutions: synthesis, characterization, and electrochemical behaviour in fuel cells

“…The notion of “waste to treasure” has garnered considerable scientific interest, stimulating investigations into the recovery of critical metals from waste materials and their subsequent utilization as key components in new energy conversion devices. 25–33 Pt group metals have been recovered from waste materials such as spent catalysts, 34 discarded electronic equipment, 35 and chemical waste 36 by methods of both hydrometallurgy and pyrometallurgy; however, short process strategies have rarely been applied to high-value-added Pt secondary resources. Of particular relevance, Pt–Re/Al 2 O 3 reforming catalysts, extensively employed in the petroleum and chemical industries, in which the Pt content is about 0.5–10 kg t −1 , serve as alternative Pt sources.…”