Kinetics of Desulfuration Product Sulphoaluminate Calcium
The formation kinetics of sulphoaluminate calcium was studied by variations of sulfur release with time from SC-132 based on competitive reactions, the generation of sulphoaluminate calcium and the decomposition of CaSO4. Experimental investigations and theoretical derivations show that the formation rate of sulphoaluminate calcium can be described as first-order kinetics at high temperature, and it belongs to the mechanism of random nucleus growth. The apparent activation energy is 456.37 KJ•mol-1 and pre-exponential factor is 1.545×1012.
Zhenyu Du and X.B Sun
H. L. Guo and J. L. Xie, "Kinetics of Desulfuration Product Sulphoaluminate Calcium", Advanced Materials Research, Vols. 113-116, pp. 1814-1817, 2010