Synthesis of single phase Ca-α-SiAlON using Y-type zeolite |
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| Authors: | Hitoshi Sasaki Yasunori Oumi Masahiro Sadakane Tsuneji Sano |
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| Affiliation: | 1. Univ Lille Nord de France, F-59000 Lille, France;2. ULCO, LPCA, EAC CNRS 4493, F-59140 Dunkerque, France;3. St. Petersburg University, 199034 St. Petersburg, Russia;4. V. G. Khlopin Radium Institute, 194021 St. Petersburg, Russia;1. Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK;2. School of Chemistry, Cardiff University, Cardiff CF10 3AT, UK;3. School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, UK |
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| Abstract: | Single phase Ca-α-SiAlON was synthesized for the first time by the carbothermal reduction-nitridation of a physical mixture of Y-type zeolite and CaO. Under well-optimized conditions, which included both a Si/Al ratio of 2.8 for the starting Y-type zeolite and a Ca/Al ratio of 0.63–0.75, highly crystalline, pure Ca-α-SiAlON was obtained. The formation of pure Ca-α-SiAlON was also confirmed by 27Al and 29Si MAS NMR measurements. |
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