Apply of composite particles of methyl methacrylate and calcium sulphate with a core-shell microstructure prepared through in-situ polymerization;

Research situation and development of calcium sulphate whikers;

Study on β-tricalcium phosphate/calcium sulphate bioceramics;

Study on catalytic oxidation of calcium sulfite in flue gas desulfurization process by using manganese sulfate;

Experimental study on oxidation of calcium sulfite accelerated by adeitives;

Macroscopical oxidation kinetics of wet flue gas desulfurization by-product calcium sulfite catalyzed by manganese sulfate;

Formation kinetics of high-temperature phase sulphoaluminate;

Study of sulfur-fixing characteristics of sulphoaluminate in different atmosphere at high temperature;

Study of high temperature phase of sulphoaluminate for desulfuration;

Study on properties of Portland cement modified with calcium sulphoaluminate;

Testing methods such as chemical analysis, X-ray diffraction and differential scanning calorimetry were used to study the influence of Fe2O3 on the formation of anhydrous calcium sulphoaluminate ( C 4 A 3S ).

The kinds,shapes and quantities of hydration products and the ion concentration in pore solution were investigated during hydration of fly ash or slag portland cement containing calcium sulphoaluminate by differential scanning calorimetry-thermogravimetry analysis,scanning electron microscope and chemical analysis.

The results obtained showed that the desulphurization residues containing a number of CaSO_3 may be used as a retarder,and be better by adding with gypsum.

The main substance of FGD by-products is CaSO_3, and its property can influence the comprehensive utilization of FGD residues g.