Chemical dechlorination of polychlorinated biphenyls (PCBs) from dielectric oils

被引：0
|
作者：
A. Cafissi
S. Beduschi
V. Balacco
B. Sacchi
S. P. Trasatti
机构：
[1] University of Milan,Department of Physical Chemistry and Electrochemistry
[2] MF Trasformatori,undefined
来源：
Environmental Chemistry Letters | 2007年 / 5卷
关键词：
Dielectric oil; Polychlorinated biphenyls; Dechlorination; Ultrasounds;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We studied the chemical dechlorination of the polychlorinated biphenyls (PCBs) in some dielectric oils via nucleophilic substitution of the chloro atoms by polyethylene alkoxide. The influence of temperature, ultrasounds, polyethylene glycol (PEG) and base type was investigated. Our findings show that dechlorination of PCBs by chemical treatment is effective at moderate temperature (90–100°C) and is strongly dependent on the nature of matrix oil. Stirring affects the process yield by influencing the homogeneity of the oil/glycol two-phase system. Ultrasounds can improve the process efficiency by making operating conditions less severe.
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页码：101 / 106
页数：5
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