CMC is used in mining industry as pellet binder and floating selection inhibitor. CMC is a component of the binder for mineral dust shaping, and the binder is an indispensable ingredient in pellet forming. It can improve the character of wet pellet, dry pellet and calcinated pellet. Due to its good binding property and pellet forming property, the green pellet with CMC has excellent antiknock performance, high compressive strength and dropping resistance. CMC is an adjusting agent in floating selection process, it is used as silicate gangue inhibitor, controlling the lead in copper and lead separating, and sometimes it is used as dispersant for mineral mud.