Abstract
Antimony volatilization in municipal waste incineration was studied. Two municipal waste samples and antimony(III) oxide (Sb4O6) were heated to 500°C and 700°C in an air stream in a quartz furnace. The volatilization of Sb4O6 occurred more at 700°C that at 500°C. Conversely, antimony volatilization form municipal waste was stronger at 500°C than at 700°C. This implies that antimony from municipal waste is volatilized as chloride instead of oxide. The chlorine sources for antimony chlorination, a gas-phase reaction involving hydrochloric acid and a solid-phase reaction of inorganic chlorine, e.g., CaCl2, were compared. Only the solid-phase reaction could offer enough active chlorine to induce chlorination of antimony oxide.
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Received: July 2, 1998 / Accepted: January 28, 1999
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Watanabe, N., Inoue, S. & Ito, H. Chlorine promotes antimony volatilization in municipal waste incineration. J Mater Cycles Waste Manag 2, 10–15 (2000). https://doi.org/10.1007/s10163-999-0015-4
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DOI: https://doi.org/10.1007/s10163-999-0015-4