ACIDITY;
ALUMINA;
DECHLORINATION;
DESTRUCTION;
OCDD;
OCDF;
METAL CHLORIDES;
D O I:
10.1016/0926-3373(94)00055-7
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
We have studied the dechlorination/destruction of octachlorodibenzo-p-dioxin and octachlorodibenzofuran on alumina. The acidity of the alumina is an important parameter for the dechlorination of these compounds. Alkaline alumina is a better dechlorination agent than acidic alumina. Metal chlorides are less effective dechlorination catalysts than alumina. The dechlorination of octachlorodibenzo-p-dioxin and octachlorodibenzofuran on alumina proceeds probably via an electrophilic substitution mechanism.