Basically speaking, our entire production process is a process of separation - only about 30 % of the raw earth extracted is an usable fine product. A particularly structure-conserving process separates the fine product from sand, sundry stones and rock. In the first step the raw material is dispersed in water and thus separated from gravel fractions. This is followed by the hydrocyclone unit which separates the sand fractions and sorts the fine particles into different particle sizes. The slurry obtained is then concentrated and the water removed in filter presses. Finally, the natural gas powered turbine dryers remove the remaining moisture. The material is than pulverized and stored for further processing.