Proceedings of Conference on Coal Science
Online ISSN : 2423-8309
Print ISSN : 2423-8295
ISSN-L : 2423-8295
[volume title in Japanese]
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Name : The 42nd Conference of Coal Science

Number : 42

Location : [in Japanese]

Date : November 17, 2005 - November 18, 2005

25. Elucidation of chemical uniting form of boron in flyash
Aya TOSHIDA, Shinji KAMBARA, Hiroshi MORITOMI, Takashi KUWABARA
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CONFERENCE PROCEEDINGS FREE ACCESS

Pages 53-54

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Abstract
Boron spectra for two fly ashes were measured by XPS to understand partitioning of boron in pulverized coal combustion processes. Boron functionalities were found as 185eV and 188eV peaks which are soluble and insoluble compounds, respectively. XPS measurements of fly ashes before and after leaching test, and observation of boron devolatilization by solid atomic absorption spectroscopy suggested that 185eV mean H_3BO_3 and another peak is AlB_2.
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© 2005 The Japan Institute of Energy
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