Abstract
In this paper, the bromination reaction between lead oxide and hydrogen bromide originating from the thermal decomposition of tetrabromobisphenol A (TBBPA), under inert and oxidizing atmospheres, was investigated, using a laboratory-scale furnace. The results obtained under inert conditions indicated that bromination of PbO proceeded simultaneously with debromination of TBBPA, with an average effectiveness of 69% (max. 80%). Volatilization of the formed PbBr2 began at 315°C, intensified at 750°C, and reached 98% at 850°C. The formed organic char served as a source of carbon for reduction of the unreacted lead oxide to metallic lead in the range 315-750°C. Additional experiments conducted at selected temperatures under slightly oxidizing (5vol% O2) and quasi-atmospheric (20vol% O2) conditions showed no significant effects on bromination-evaporation of lead in the studied mixture. However, in isothermal treatment under quasi-atmospheric oxygen levels, complete vaporization of the formed lead bromide was obtained at a temperature of only 650°C.
| Original language | English |
|---|---|
| Pages (from-to) | 163-171 |
| Number of pages | 9 |
| Journal | Journal of Hazardous Materials |
| Volume | 261 |
| DOIs | |
| Publication status | Published - 2013 Oct 15 |
| Externally published | Yes |
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Keywords
- Bromination-vaporization process
- Lead recovery
- Safe disposal of EAF dust
- WEEE utilization
ASJC Scopus subject areas
- Health, Toxicology and Mutagenesis
- Pollution
- Waste Management and Disposal
- Environmental Chemistry
- Environmental Engineering
Cite this
Fate of lead oxide during thermal treatment with tetrabromobisphenol A. / Oleszek, Sylwia; Grabda, Mariusz Grzegorz; Shibata, Etsuro; Nakamura, Takashi.
In: Journal of Hazardous Materials, Vol. 261, 15.10.2013, p. 163-171.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Fate of lead oxide during thermal treatment with tetrabromobisphenol A
AU - Oleszek, Sylwia
AU - Grabda, Mariusz Grzegorz
AU - Shibata, Etsuro
AU - Nakamura, Takashi
PY - 2013/10/15
Y1 - 2013/10/15
N2 - In this paper, the bromination reaction between lead oxide and hydrogen bromide originating from the thermal decomposition of tetrabromobisphenol A (TBBPA), under inert and oxidizing atmospheres, was investigated, using a laboratory-scale furnace. The results obtained under inert conditions indicated that bromination of PbO proceeded simultaneously with debromination of TBBPA, with an average effectiveness of 69% (max. 80%). Volatilization of the formed PbBr2 began at 315°C, intensified at 750°C, and reached 98% at 850°C. The formed organic char served as a source of carbon for reduction of the unreacted lead oxide to metallic lead in the range 315-750°C. Additional experiments conducted at selected temperatures under slightly oxidizing (5vol% O2) and quasi-atmospheric (20vol% O2) conditions showed no significant effects on bromination-evaporation of lead in the studied mixture. However, in isothermal treatment under quasi-atmospheric oxygen levels, complete vaporization of the formed lead bromide was obtained at a temperature of only 650°C.
AB - In this paper, the bromination reaction between lead oxide and hydrogen bromide originating from the thermal decomposition of tetrabromobisphenol A (TBBPA), under inert and oxidizing atmospheres, was investigated, using a laboratory-scale furnace. The results obtained under inert conditions indicated that bromination of PbO proceeded simultaneously with debromination of TBBPA, with an average effectiveness of 69% (max. 80%). Volatilization of the formed PbBr2 began at 315°C, intensified at 750°C, and reached 98% at 850°C. The formed organic char served as a source of carbon for reduction of the unreacted lead oxide to metallic lead in the range 315-750°C. Additional experiments conducted at selected temperatures under slightly oxidizing (5vol% O2) and quasi-atmospheric (20vol% O2) conditions showed no significant effects on bromination-evaporation of lead in the studied mixture. However, in isothermal treatment under quasi-atmospheric oxygen levels, complete vaporization of the formed lead bromide was obtained at a temperature of only 650°C.
KW - Bromination-vaporization process
KW - Lead recovery
KW - Safe disposal of EAF dust
KW - WEEE utilization
UR - http://www.scopus.com/inward/record.url?scp=84881226664&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84881226664&partnerID=8YFLogxK
U2 - 10.1016/j.jhazmat.2013.07.028
DO - 10.1016/j.jhazmat.2013.07.028
M3 - Article
VL - 261
SP - 163
EP - 171
JO - Journal of Hazardous Materials
JF - Journal of Hazardous Materials
SN - 0304-3894
ER -