FORMATION OF ORGANOHALOGEN COMPOUNDS IN FLY-ASH BY METAL-CATALYZED OXIDATION OF RESIDUAL CARBON

被引：46

作者：

SCHWARZ, G

STIEGLITZ, L

机构：

来源：

CHEMOSPHERE | 1992年 / 25卷 / 03期

关键词：

PCDD; PCDF; FLY-ASH; MUNICIPAL WASTE INCINERATION; DSC; PARTICULATE CARBON; DE-NOVO-SYNTHESIS;

D O I：

10.1016/0045-6535(92)90543-Z

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The formation of organohalogen compounds (PCDD/PCDF, chlorothiophenes, chlorobenzothiophenes, chlorobenzonitriles, chlorobenzenes, chlorobenzofurans, chlorophenols, PCB's and chloronaphthalenes) by thermal treatment of fly ash was investigated. In addition the oxidative degradation of particulate carbon of the fly ash was studied by differential scanning calorimetry (DSC) in the temperature range from 120 -550-degrees-C. From a comparison of the time and temperature dependence of both reactions it can be concluded, that organohalogen compounds are formed as by-products of the metal catalyzed oxidation of particulate carbon. The intermediate formation of a metal-halogen-complex, followed by a ligand transfer to the particulate carbon must be considered.

引用

页码：277 / 282

页数：6

共 12 条

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