A study on PbO in CRT funnel glass at high-temperature condition

被引：2

作者：

Li, Zhongguo ^{[1
,2
]}

Yuan, Wenyi ^{[2
]}

Ding, Shufang ^{[2
]}

Chen, Ying ^{[2
]}

Li, Jinhui ^{[2
]}

机构：

[1] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China

[2] Tsinghua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL TECHNOLOGY AND MANAGEMENT | 2012年 / 15卷 / 01期

关键词：

end-of-life CRTs; PbO; funnel glass; micro-structural observation; high temperature;

D O I：

10.1504/IJETM.2012.045144

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Glasses from the end-of-life Cathode Ray Tubes (CRTs) represent a pressing environmental problem, especially the funnel glass containing high lead concentration. To avoid lead contamination and re-utilise it, it is of great importance to study the separation process of lead contained in the funnel glass. In this study, the microstructure of scrap funnel glass and molten funnel glass were analysed by SEM and XRF. The results indicated that the PbO content in the top was more than that in the bottom. PbO would be released from scrap funnel glass at high-temperature condition when Na2O was added into the glass specimens.

引用

页码：16 / 27

页数：12

共 11 条

[1] Glass-ceramics obtained by the recycling of end of life cathode ray tubes glasses [J].

Andreola, F ;

Barbieri, L ;

Corradi, A ;

Lancellotti, I ;

Falcone, R ;

Hreglich, S .

WASTE MANAGEMENT, 2005, 25 (02) :183-189

[2] CRT glass state of the art - A case study: Recycling in ceramic glazes [J].

Andreola, Fernanda ;

Barbieri, Luisa ;

Corradi, Anna ;

Lancellotti, Isabella .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2007, 27 (2-3) :1623-1629

[3] Vitrification of wastes and preparation of chemically stable sintered glass-ceramic products [J].

Bernardo, E. ;

Varrasso, M. ;

Cadamuro, F. ;

Hreglich, S. .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 2006, 352 (38-39) :4017-4023

[4] Glass foams from dismantled cathode ray tubes [J].

Bernardo, Enrico ;

Albertini, Francesca .

CERAMICS INTERNATIONAL, 2006, 32 (06) :603-608

[5] Characterisation of porous glasses prepared from Cathode Ray Tube (CRT) [J].

Mear, F ;

Yot, P ;

Cambon, M ;

Caplain, R ;

Ribes, M .

POWDER TECHNOLOGY, 2006, 162 (01) :59-63

[6] Effects of temperature, reaction time and reducing agent content on the synthesis of macroporous foam glasses from waste funnel glasses [J].

Méar, F ;

Yot, P ;

Ribes, M .

MATERIALS LETTERS, 2006, 60 (07) :929-934

[7] Mechanical behaviour and thermal and electrical properties of foam glass [J].

Mear, Francois ;

Yot, Pascal ;

Viennois, Romain ;

Ribes, Michel .

CERAMICS INTERNATIONAL, 2007, 33 (04) :543-550

[8] Cathode ray tube recycling [J].

Menad, N .

RESOURCES CONSERVATION AND RECYCLING, 1999, 26 (3-4) :143-154

[9] Properties and FTIR spectra of lead phosphate glasses for nuclear waste immobilization [J].

Shih, PY .

MATERIALS CHEMISTRY AND PHYSICS, 2003, 80 (01) :299-304

[10] Environmental life-cycle impacts of CRT and LCD desktop computer displays [J].

Socolof, ML ;

Overly, JG ;

Geibig, JR .

JOURNAL OF CLEANER PRODUCTION, 2005, 13 (13-14) :1281-1294

← 1 2 →