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Citation: Ye Gang, Li Guang-Hui, Lu Chun-Mao, Zhang Ming-Hai. Studies on Hydrothermal Behavior of Alumina III[J]. Acta Physico-Chimica Sinica, ;1996, 12(10): 921-925. doi: 10.3866/PKU.WHXB19961012 shu

Studies on Hydrothermal Behavior of Alumina III

1.
Research Institute of Petroleum Processing,Beijing 100083

Received Date: 13 February 1996
Available Online: 15 October 1996

The rehydration of dehydrated products of boehmite with different textural morphology calcined at the temperature below 1000℃ is investigated by XRD and SEM. It is found that every dehydrated alumina is capable of being rehydratied and the rehydration product is boehmite. Rehydrates with different textural morphology have been produced from aluminas with different textural morphology, and the textural morphology of a rehydrate depends both on the starting alumina and on the hydrothermal conditions. The rehydration ability of aluminas is determined by their textural morphology and calcined temperature. Aluminas are directly rehydrated to rehydrate and the rehydration process is not the reverse. Process of the dehydration of the initial boehmite.
- Alumina,
- Alumina hydrate,
- Hydrothermal chemistry,
- Boehmite,
- Rehydration,
- Phase transformation
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