Fate of lead oxide during thermal treatment with tetrabromobisphenol A

Sylwia Oleszek; Mariusz Grzegorz Grabda; Etsuro Shibata; Takashi Nakamura

doi:10.1016/j.jhazmat.2013.07.028

Fate of lead oxide during thermal treatment with tetrabromobisphenol A

Sylwia Oleszek^*, Mariusz Grzegorz Grabda, Etsuro Shibata, Takashi Nakamura

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

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	https://doi.org/10.1016/j.jhazmat.2013.07.028
Publication status	Published - 2013 Oct 15
Externally published	Yes

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

Access to Document

10.1016/j.jhazmat.2013.07.028

Cite this

@article{a6f863ba9aa24fa2b2f7474e0917948f,

title = "Fate of lead oxide during thermal treatment with tetrabromobisphenol A",

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.",

keywords = "Bromination-vaporization process, Lead recovery, Safe disposal of EAF dust, WEEE utilization",

author = "Sylwia Oleszek and Grabda, {Mariusz Grzegorz} and Etsuro Shibata and Takashi Nakamura",

year = "2013",

month = oct,

day = "15",

doi = "10.1016/j.jhazmat.2013.07.028",

language = "English",

volume = "261",

pages = "163--171",

journal = "Journal of Hazardous Materials",

issn = "0304-3894",

publisher = "Elsevier",

}

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

C2 - 23921179

AN - SCOPUS:84881226664

VL - 261

SP - 163

EP - 171

JO - Journal of Hazardous Materials

JF - Journal of Hazardous Materials

SN - 0304-3894

ER -

Fate of lead oxide during thermal treatment with tetrabromobisphenol A

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this