Preparation and Surface Modification of Hydrated Aluminum Silicate from Aluminum Bearing Waste
A new way for preparation of hydrated aluminum silicate from aluminum bearing waste was presented in this research.The product was prepared through reaction,aging,washing,surface modification,etc.and examined by compositional analysis,TG-DTA,SEM and so on.The results showed that the powder scale can achieve nanometer and the product conforms to the general enterprise standard of China.Tween-80 modified the aluminum silicate in the way of attaching on the surface of particles in adsorption mode.Four steps are contained in the growth process of aluminum silicate in this system,and they are controlled by different conditions respectively.