SO2 Absorbability of Lime Powder Coated with Silica and Alumina
| Autor: | Hideyuki Yoshimatsu, Yoshinari Miura, Satoru Ueno, Ken Muraoka, Hideaki Sato |
|---|---|
| Rok vydání: | 2002 |
| Předmět: |
Calcium hydroxide
Materials science Aluminate Inorganic chemistry technology industry and agriculture chemistry.chemical_element General Chemistry Calcium engineering.material equipment and supplies Condensed Matter Physics complex mixtures Silicon alkoxide chemistry.chemical_compound chemistry Chemical engineering Specific surface area Calcium silicate Materials Chemistry Ceramics and Composites engineering Sol-gel Lime |
| Zdroj: | Journal of the Ceramic Society of Japan. 110:293-298 |
| ISSN: | 1882-1022 0914-5400 |
| DOI: | 10.2109/jcersj.110.293 |
| Popis: | Calcium hydroxide powder was coated with a silicon alkoxide and a chelate compound of aluminum, and heated at 500-800°C to prepare silica- and alumina-coated lime powders. Specific surface area and SO2 absorbability of silica- and alumina-coated lime powders were higher than those of the uncoated powder. Calcium silicate and calcium aluminate formed on the surface of these powders. It was considered that the improvement of SO2 absorbability for the silica-coated powder was attributed to an increase of specific surface area, while that for the alumina-coated powder arose from on increased acidity. |
| Databáze: | OpenAIRE |
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