Effects of precipitation activity of desilication products (DSPs) on stability of sodium aluminate solution

SEM images of DSPs under different desilication conditions: (a, b) 145 °C, 1 h; (c, d) 95 °C, 8 h + 145 °C, 1 h; (e, f) 145 °C, 1 h (CaO); (g, h) 95 °C, 8 h (CaO) + 145 °C, 1 h.