CATALYTIC DECHLORINATION OF POLYCHLORINATED-BIPHENYLS WITH CARBON-SUPPORTED NOBLE-METAL CATALYSTS UNDER MILD CONDITIONS

Authors
UKISU Y IIMURA S UCHIDA R
Citation
Y. Ukisu et al., CATALYTIC DECHLORINATION OF POLYCHLORINATED-BIPHENYLS WITH CARBON-SUPPORTED NOBLE-METAL CATALYSTS UNDER MILD CONDITIONS, Chemosphere, 33(8), 1996, pp. 1523-1530
Citations number
9
Categorie Soggetti
Environmental Sciences
Journal title
Chemosphere → ACNP
ISSN journal
00456535
Volume
33
Issue
8
Year of publication
1996
Pages
1523 - 1530
Database
ISI
SICI code
0045-6535(1996)33:8<1523:CDOPWC>2.0.ZU;2-O
Abstract
Polychlorinated biphenyls (PCBs) were effectively dechlorinated to bip henyl and phenylcyclohexane using a 2-propanol solution of sodium hydr oxide in the presence of carbon-supported noble metal catalysts (Pd/C, Rh/C) at the temperatures below 82 degrees C. Total amounts of the de chlorinated aromatic products and chlorine ions after the complete dec hlorination were in good agreement with theoretical ones. It was postu lated that the dechlorination reaction includes hydrogen transfer from 2-propanol to PCBs. Copyright (C) 1996 Elsevier Science Ltd.