The effects of adding quicklime and activator to fluoropagsum are as follows :① By adding an appropriate amount of quicklime, the residual acid and water-soluble fluorine in fluorogypsum can be neutralized and converted into calcium fluoride minerals which are difficult to dissolve. The addition of 1.5% quicklime can effectively realize the deacidification of fluoropagsum. (2) Activators can greatly improve the strength of fluorogypsum cement and shorten the setting time, but when the content of activator exceeds a certain percentage, the strength decreases with the increase of the content of activator. The content of activator should be considered as 0.4%. (3) In the alkaline environment, the potential activity of slag is fully stimulated, and the strength and water resistance of fluorogypsum cementation material can be significantly improved by adding 10%~20% slag powder.
Great achievements have been made in the comprehensive utilization of fluorogypsum, which has gradually transformed from simple, low value added utilization to high technology, high value added and deep processing. It not only solves the problem of environmental protection, but also makes effective use of resources. It has good social and economic benefits, and has broad prospects for development
