A practical approach to the degradation of polychlorinated biphenyls in transformer oil


Autoria(s): Wu, WH; Xu, J; Zhao, HM; Zhang, Q; Liao, SJ
Data(s)

01/08/2005

Resumo

A practical and efficient disposal method for hydrodechlormation of polychlorinated biphenyls (PCBs) in transformer oil is reported. Transformer oil containing PCBs was treated by nanometric sodium hydride (nano-NaH) and transition metal catalysts. High destruction and removal efficiency (89.8%) can be attained by nano-NaH alone under mild conditions. The process exhibits apparent characteristics of a first order reaction. The reductive ability of nano-NaH was enhanced by the addition of transition metal catalysts. In the presence of TiCl4, 99.9% PCBs was hydrodechlorinated. The complex reducing reagents, Ni(OAc)(2) + i-PrONa, show extra hydrodechlorinating activity for di-chlorinated biphenyls. (c) 2004 Elsevier Ltd. All rights reserved.

Identificador

http://159.226.238.44/handle/321008/92579

http://www.irgrid.ac.cn/handle/1471x/184301

Idioma(s)

英语

Fonte

吴文海;徐杰;赵红梅;张青;廖世健.A practical approach to the degradation of polychlorinated biphenyls in transformer oil,Chemosphere,2005,60():944-950

Palavras-Chave #hydrodechlorination #nanometric sodium hydride #polychlorinated biphenyls #transformer oil #transition metal catalysts
Tipo

期刊论文