Thermal Decomposition of Hydrocalumite over a Temperature Range of 400–1500°C and Its Structure Reconstruction in Water
Joint Authors
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-17
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The thermal decomposition process and structure memory effect of hydrocalumite were investigated systematically for the first time over a wide temperature range of 400–1500°C.
The calcined hydrocalumite samples and their rehydrated products were characterized by XRD, FT-IR, and SEM-EDX.
The results show that the calcination products at temperatures ranging from 500 to 900°C are basically mayenite and lime, while one of the final products obtained by calcination at and above 1000°C is probably tricalcium aluminate (Ca3Al2O6).
For the hydrocalumite samples calcined at temperatures below 1000°C, their lamellar structure can be completely recovered in deionized water at room temperature.
However, the further increase of calcination temperature could impair the regeneration ability of hydrocalumite via contact with water.
Upon calcination of hydrocalumite at 1000–1500°C followed by reaction with water, a stable compound tricalcium aluminate hexahydrate (Ca3Al2O6·6H2O) was produced, which is the reason why less hydrocalumite could be regenerated.
American Psychological Association (APA)
Tian, Jiao& Guo, Qinghai. 2014. Thermal Decomposition of Hydrocalumite over a Temperature Range of 400–1500°C and Its Structure Reconstruction in Water. Journal of Chemistry،Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1039989
Modern Language Association (MLA)
Tian, Jiao& Guo, Qinghai. Thermal Decomposition of Hydrocalumite over a Temperature Range of 400–1500°C and Its Structure Reconstruction in Water. Journal of Chemistry No. 2014 (2014), pp.1-8.
https://search.emarefa.net/detail/BIM-1039989
American Medical Association (AMA)
Tian, Jiao& Guo, Qinghai. Thermal Decomposition of Hydrocalumite over a Temperature Range of 400–1500°C and Its Structure Reconstruction in Water. Journal of Chemistry. 2014. Vol. 2014, no. 2014, pp.1-8.
https://search.emarefa.net/detail/BIM-1039989
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1039989