期刊
CHINESE JOURNAL OF CHEMICAL ENGINEERING
卷 19, 期 3, 页码 489-495出版社
CHEMICAL INDUSTRY PRESS
DOI: 10.1016/S1004-9541(11)60011-6
关键词
calcium sulfoaluminate; standard formation enthalpy; Gibbs free energy of formation; entropy; molar heat capacity
资金
- National Natural Science Foundation of China [50906046]
- National High-Tech Research and Development Program of China [2009AA05Z303]
- Program for New Century Excellent Talents in University [NCET-10-0529]
Calcium sulfoaluminate, 3CaO center dot 3Al(2)O(3)center dot CaSO4, has been widely recognized in the realms of high-temperature combustion and cement chemistry. However, the lack of relevant thermodynamic data limits the progress of its research and development. Through comparative calculations using several different approaches, we obtain the thermochemical properties of 3CaO center dot 3Al(2)O(3)center dot CaSO4 in this work, such as its standard formation enthalpy, Gibbs free energy of formation, entropy, and molar heat capacity. With these fundamental data, thermodynamic calculations become possible for reactions involving this mineral. It is found that some reactions proposed in literature to generate this mineral may not proceed thermodynamically.
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