Limestone is an essential raw material
Almost one third of glass consists of limestone.
Limestone (Calcium Carbonate) is one of the main components in glass manufacturing. Its' main function is to introduce Calcium Oxide into glass recipe which is needed to improve chemical resistance and durability. It also acts as flux in glass manufacturing.
In sugar production process lime is used to absorb impurities.
Nordkalk limestone is used in the process of manufacturing sugar to obtain CO2 necessary in the further phase of the process and the production of white lime, used for the purification of liquid sugar. White lime is obtained in the process of the hydration of burnt limestone. When added, it causes the alkalisation of sugar solution and precipitation of unnecessary colloids. Purified juice undergoes CO2 saturation, which removes non-sugars.
Nordkalk is the leading limestone company on its home markets. We deliver essential raw materials to numerous industries, and our solutions contribute to clean air and water as well as productivity of agricultural land.