REMOVAL OF LEAD FROM CATHODE RAY TUBE FUNNEL GLASS BY CHLORIDE VOLATILIZATION

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GRAUSE G.; YAMAMOTO N.; KAMEDA T.; YOSHIOKA T.

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Journal Paper

Paper Information

Journal: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST) Year:2014 | Volume:11 | Issue:4 Page(s): 959-966

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Title

REMOVAL OF LEAD FROM CATHODE RAY TUBE FUNNEL GLASS BY CHLORIDE VOLATILIZATION

Author(s)

GRAUSE G. | YAMAMOTO N. | KAMEDA T. | YOSHIOKA T. | Issue Writer Certificate

Keywords

RECYCLING SODIUM CHLORIDE CALCIUM CHLORIDE POLYVINYL CHLORIDE THERMODYNAMICS DIFFUSION

Abstract

Cathode ray tube funnel glass is an environmentally problematic relict of old television sets. In particular, landfilling of this material is strongly discouraged because of its high lead content. However, recovery of this toxic lead could prevent its release into the environment and allow its reuse. In this research, lead was separated from the glass matrix by a chloride volatilization process. Melting of the funnel glass together with CaCl2 resulted in the volatilization of 80% of lead at 1,000oC. The use of NaCl as a chlorination agent yielded less volatile lead, while poly (vinyl chloride) and gaseous HCl proved to be ineffective chlorination agents. The differences in the chlorination agent efficiencies could be attributed to differences in the corresponding formation of silicates. Energy-dispersive X-ray spectroscopy showed that diffusion plays an important role in the volatilization of PbCl2.

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APA: Copy

GRAUSE, G., YAMAMOTO, N., KAMEDA, T., & YOSHIOKA, T.. (2014). REMOVAL OF LEAD FROM CATHODE RAY TUBE FUNNEL GLASS BY CHLORIDE VOLATILIZATION. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), 11(4), 959-966. SID. https://sid.ir/paper/285531/en

Vancouver: Copy

GRAUSE G., YAMAMOTO N., KAMEDA T., YOSHIOKA T.. REMOVAL OF LEAD FROM CATHODE RAY TUBE FUNNEL GLASS BY CHLORIDE VOLATILIZATION. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST)[Internet]. 2014;11(4):959-966. Available from: https://sid.ir/paper/285531/en

IEEE: Copy

G. GRAUSE, N. YAMAMOTO, T. KAMEDA, and T. YOSHIOKA, “REMOVAL OF LEAD FROM CATHODE RAY TUBE FUNNEL GLASS BY CHLORIDE VOLATILIZATION,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY (IJEST), vol. 11, no. 4, pp. 959–966, 2014, [Online]. Available: https://sid.ir/paper/285531/en

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