Study on fired Suzhou kaolin at different calcination temperatures
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摘要: 采用XRF,SEM,XRD,IR,NMR等測試手段對蘇州高嶺土及其在550～850℃的煅燒產物進行了研究。實驗結果表明：煅燒后產物由煅燒前的晶態轉變成了非晶態；煅燒溫度對高嶺土煅燒產物形貌和結構有一定影響,溫度越高,產物中棒狀,塊狀小顆粒越少,Al的四配位量越多。Abstract: The Suzhou kaolin sample and the fired kaolin samples at different calcination temperatures were characterized with XRF, SEM, XRD, IR and NMR. The results showed that the fired kaolin samples were transformed from crystal to non-crystal, and calcination temperature had some affects on their morphology and structure: the higher the calcination temperature, the fewer the small particles with rod and plate morphologies, and the fewer the AIIV in the fired kaolin.
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Key words:
- kaolin /
- calcination temperature /
- morphology /
- structure
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