Decomposition of Pentachlorobenzene and 1,2,3,4-tetrachlorodibenzo-p-dioxin by Electron Irradiation
|
Accession number;03A0267184
|
| Title;Decomposition of Pentachlorobenzene and 1,2,3,4-tetrachlorodibenzo-p-dioxin by Electron Irradiation |
| Author;
TAKEUCHI MASAO
(National Inst. Advanced Industrial Sci. and Technol., JPN)
TSUCHIYA KENTARO
(National Inst. Advanced Industrial Sci. and Technol., JPN)
HATANAKA TAKESHI
(National Inst. Advanced Industrial Sci. and Technol., JPN)
KITAJIMA AKIO
(National Inst. Advanced Industrial Sci. and Technol., JPN)
HARADA KAZUHIKO
(Denki Kogyo Co., Ltd.)
HIRASHIMA TERUHISA
(Denki Kogyo Co., Ltd.)
|
Journal Title;Journal of the Japan Society of Waste Management Experts
|
Journal Code:L1596A
|
ISSN:
|
|
VOL.14;NO.2;PAGE.109-115(2003)
|
| Figure&Table&Reference;FIG.3, TBL.5, REF.13 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;This paper explains the following items on the titled study: 1) Objectives; to study effectiveness of electron irradiation on decomposition of dioxins in waste gas and clarify decomposition characteristics, 2) test method; pentachlorobenzene (I) and 1,2,3,4-tetrachlorodibenzo-p-dioxin (II) were adsorbed on magnesium silicate powder to prepare model fly ash, 3) test results on I; 96 % was decomposed by irradiation of 300 kGy, however, low chlorinated compounds generated, which lowered total decomposition rate of chlorobenzenes to 62 %. Chlorine at carbon (3) position was more easily detached due to low dissociation energy as clarified by "ab initio calculation", 4) test results on II; nearly the same decomposition rate as in I was obtained. Chlorine at carbon (2) or (3) position was more easily detached, 5) decomposition started from dechlorination, then benzene ring cleavage and 6) conclusion; in treatment of high chlorinated dioxins by electron irradiation, high toxic substances with a substitution group at carbon (2) or (3) position may be generated little. |
|
|
|
Related Articles;
|
|
