Affordable Access

Publisher Website

Pd/C-catalyzed dechlorination of polychlorinated biphenyls under hydrogen gas-free conditions

Authors
Journal
Journal of Hazardous Materials
0304-3894
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/j.jhazmat.2012.05.005
Keywords
  • Dechlorination
  • Magnesium
  • Palladium On Carbon
  • Pcb
  • Single-Electron Reducing Agent

Abstract

Abstract The simultaneous use of catalytic amount of palladium on carbon (Pd/C) and Mg metal (1.5–2.0 equiv vs. Cl numbers of the substrates) in MeOH achieved the complete dechlorination of a variety of aryl chlorides at room temperature under a nitrogen atmosphere in the absence of hydrogen gas. The present method could be successfully used for the detoxification of PCBs based on the dechlorinaton reaction. Both virgin PCBs, such as Aroclors 1242, 1248 and 1254, and used PCBs as a high-tension capacitor oil, were smoothly dechlorinated into harmless biphenyl without any byproducts within 2h at rt. The distinctive features of this method are convenience and safety due to no needs for the pretreatment of catalyst and Mg and complete degradation of PCBs under mild conditions without hydrogen gas.

There are no comments yet on this publication. Be the first to share your thoughts.