Fate of bromine in pyrolysis of printed circuit board wastes

被引：120

作者：

Chien, YC

Wang, HP ^{[1
]}

Lin, KS

Huang, YJ

Yang, YW

机构：

[1] Natl Cheng Kung Univ, Dept Environm Engn, Tainan 70101, Taiwan

[2] Synchrotron Radiat Res Ctr, Hsinchu, Taiwan

来源：

CHEMOSPHERE | 2000年 / 40卷 / 04期

关键词：

pyrolysis; printed circuit board; recycling; EXAFS; bromine;

D O I：

10.1016/S0045-6535(99)00251-9

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 [工学]; 0830 [环境科学与工程];

摘要：

Behavior of Br in pyrolysis of the printed circuit board waste with valuable copper and oil recycling has been studied in the present work. Experimentally, pyrolysis of the printed circuit board waste generated approximately 40.6% of oils, 24.9% of noncondensible gases and 34.5% of solid residues that enriched in copper (90-95%). The cuts of the oils produced from pyrolysis of the printed circuit board waste into weighted boiling fraction were primarily light naphtha and heavy gas oil. Approximately 72.3% of total Br in the printed circuit board waste were found in product gas mainly as HBr and bromobenzene. However, by extended X-ray absorption fine structural (EXAFS) spectroscopy, Cu-O and Cu-(O)-Cu species with bond distance of 1.87 and 2.95 Angstrom, respectively, were observed in the solid residues. Essentially, no Cu-Br species was found. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：383 / 387

页数：5

共 10 条

[1]

EUROPEAN-EXPERIENCE IN THE PYROLYSIS AND GASIFICATION OF SOLID-WASTES [J].