FEECO rotary dryers are widely used throughout the limestone industry for processing both raw and pelletized limestone products. As with all FEECO equipment, our rotary dryers are built with the characteristics of the limestone to be processed in mind. Oct 15, 2019 Limestone can also be used for the manufacture of glass, soda, caustic soda, and iron smelting with limestone as a flux. In human life, limestone can be processed into a purer powder calcium carbonate and then applied in rubber, plastic, paper, toothpaste, cosmetics, and other There are several industries that make use of limestone. As such, powdered limestone is used in the textile, paint, paper, rubber, glass and plastic industries amongst others. They are mostly used as fillers. Apart from this, it is used in the steel industry for the production process where limestone is used to remove impurities.