In the production process of alumina, mineral is firstly broken into pieces to make sure their radius is smaller than 1 mm...

Flotation process is usually adopted to gain cleaned coal with high combustion value.Since the difference in proportion between coal particle and impurity in water,coal mine will float on the surface of the water while the impurity will percipitate at the bottom of the container....

Drinking water grade PAM is mainly be used in raw water treatment,sugar making,fermentation,etc..