Premium
Leaching of palladium and rhodium from spent automobile catalysts by microwave roasting
Author(s) -
Wang Shixing,
Chen Anran,
Zhang Zebiao,
Peng Jinhui
Publication year - 2014
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.11875
Subject(s) - roasting , leaching (pedology) , rhodium , palladium , microwave , catalysis , platinum , chemistry , metallurgy , materials science , environmental science , organic chemistry , soil science , soil water , physics , quantum mechanics
Leaching of palladium and rhodium from spent automobile catalysts by microwave roasting was investigated. The results indicated that leaching efficiency was obviously improved, the roasting temperature was remarkably reduced and the leaching time was shortened by microwave roasting. Microwave destroys the coatings on platinum group metals and increases the effective contact area of the solid–liquid reaction. The leaching rate was accelerated at low microwave roasting temperatures. The leaching ratio of Pd and Rh was about 99.74 and 94.79%, respectively. © 2013 American Institute of Chemical Engineers Environ Prog, 33: 913–917, 2014