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Nong Zexi, Wang Xingrun, Shu Xinqian, Zhang Jie, Liu Feng, He Jie. Vaporization characteristics of arsenic during sintering process of smelting slag containing arsenic[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1115-1120.
Citation: Nong Zexi, Wang Xingrun, Shu Xinqian, Zhang Jie, Liu Feng, He Jie. Vaporization characteristics of arsenic during sintering process of smelting slag containing arsenic[J]. Chinese Journal of Environmental Engineering, 2013, 7(3): 1115-1120.
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Vaporization characteristics of arsenic during sintering process of smelting slag containing arsenic

  • 1.

    School of Chemical & Environmental Engineering, China University of Mining & Technology(Beijing), Beijing 100083, China

  • 2.

    Chinese Research Academy of Environmental Sciences, Beijing 100012, China

  • 3.

    College of Resources & Environment, Northwest A & F University, Yangling 712100, China

  • Received Date: 14/01/2012
    Accepted Date: 10/11/2011
    Available Online: 18/03/2013
    Fund Project:
  • An experimental work was carried out to investigate the effect of sintering temperature and sintering time on the stabilization of arsenic during a sintering process of smelting slag containing arsenic. The raw materials were shaped under the pressure of 10 MPa and exposed at 1 000~1 350℃ for 5~120 min with the air flow rate of 2 000 mL/min. The results showed that arsenic(As) could volatilize in the sintering process, however, there were not significant differences between the total amount of As before and after sintering, and the stabilization rate of As were both above 90%. The leaching results of the horizontal vibration method and TCLP showed that sintering condition had important influence on the leaching concentration of As. Considering the product’s environmental safety, the best sintering temperature and sintering time were 1 200℃ and 45 min, respectively.
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Vaporization characteristics of arsenic during sintering process of smelting slag containing arsenic

  • Received Date: 14/01/2012
  • Accepted Date: 10/11/2011
  • Available Online: 18/03/2013
Fund Project:

Abstract: An experimental work was carried out to investigate the effect of sintering temperature and sintering time on the stabilization of arsenic during a sintering process of smelting slag containing arsenic. The raw materials were shaped under the pressure of 10 MPa and exposed at 1 000~1 350℃ for 5~120 min with the air flow rate of 2 000 mL/min. The results showed that arsenic(As) could volatilize in the sintering process, however, there were not significant differences between the total amount of As before and after sintering, and the stabilization rate of As were both above 90%. The leaching results of the horizontal vibration method and TCLP showed that sintering condition had important influence on the leaching concentration of As. Considering the product’s environmental safety, the best sintering temperature and sintering time were 1 200℃ and 45 min, respectively.

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