STUDY ON STABILITY OF SULFITE IN DREGS PRODUCED BY LIFAC

Stability of one kind of the products created by LIFAC CaSO 3 is measured by using method of weight analysis and chemical analysis. The results state that CaSO 3 is oxidized first before it decomposes when it is heated above 490 ℃.And at room temperature, dry CaSO 3 is relatively stable. But moist CaSO 3 is oxidized easily. Therefore, the sulfite of calcium produced by LIFAC is stable perfectly. It cannot release SO 2 to cause the second pollution. Findings of this study provide foundation for the further apply of the technique of LIFAC.