TY - JOUR N2 - Catalytic converters contain the catalytic substance in their structure, which is a mixture of Platinum Group Metals (PGMs). The prices of these metals and a growing demand for them in the market, make it necessary to recycle spent catalytic converters and recovery of PGMs. In the study, the effect of ozone and hydrogen peroxide application on the possibility of extracting PGM from used car catalysts was investigated. The catalytic carrier was milled, sieved and then the fractions with the desired grain size were treated with the appropriate HCl mixture and 3%, 5%, 10%, 15% and 30% H2O2, respectively, and the tests were also carried out at temperature 333 K. Ozone tests were conducted with the O3 flow in the range of 1,3,5 g/h. Samples for analysis were collected after 30 min, 1 h, 2 h, 3 h and after 4 h, respectively. The residue after the experiments and filtration process was also analysed. The obtained results confirmed the assumption that PGMs can be extracted using hydrochloric acid with the addition of H2O2 or ozone as oxidants. It allows to significantly intensify the carried out reactions and to improve the rate of PGMs transfer to the solution. L1 - http://www.czasopisma.pan.pl/Content/106708/PDF/AMM-2018-2-54-Fornalczyk.pdf L2 - http://www.czasopisma.pan.pl/Content/106708 PY - 2018 IS - No 2 DO - 10.24425/122428 KW - spent catalytic converters KW - PGM metals KW - hydrometallurgy KW - O3 KW - H2O2 A1 - Fornalczyk, A. A1 - Gajda, B. A1 - Willner, J. A1 - Sedlakova-Kadukova, J. PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 63 DA - 2018.06.30 T1 - Influence of H2O2 and O3 on PGM Extraction from Used Car Catalysts UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/106708 T2 - Archives of Metallurgy and Materials ER -