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.
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.
