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Geoscience ›› 2008, Vol. 22 ›› Issue (5): 845-851.

• Engineering Geology and Environmental Geology • Previous Articles     Next Articles

Thermodynamic Analysis and Experiments on Sintering Reactions of High Alumina Flyash

LI Ge MA Hong-Wen TAN Dan-Jun JU Dan BANG Hui SU Shuang-Jing   

  1. National Laboratory of Mineral Materials, China University of Geosciences, Beijing100083, China
  • Received:2008-06-20 Revised:2008-09-12 Online:2008-10-20 Published:2009-11-12

Abstract:

The possible reactions of high alumina flyash with sodium carbonate and calcium carbonate as flux agent were studied during the sintering processes. According to the results of thermodynamic calculations and the flyash-sodium carbonate sintering experiments, contrasting the energy consumption, material resource consumption and the expellant of the greenhouse gas CO2 during the two sintering processes,it demonstrates that the procedure could be the least consumptions of the mineral resources and energy, the least expellant of the greenhouse gas CO2, and that the terminal products with high value could be manufactured when sodium carbonate is taken as the flux agent. It is therefore feasible that the procedure suggested in this paper is hopeful industrialized both in economic benefits and environmental kindness.

Key words: high alumina flyash, sodium carbonate, thermodynamic, sintering process

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