Cales de Llierca, S.A.

is a leading producer of Precipitated Calcium Carbonate (PCC), high quality lime and derived products.

Our company can be considered one of the most experienced companies in its field.

Promotional film


processThe Precipitated Calcium Carbonate cycle begins with the limestone extraction from our own quarry, followed by the Calcination and Hydration of selected materials which obtains the different lime qualities. The cycle is completed by carbonating the top quality lime with the CO2 generated in the previous calcination step to obtain the customized Precipitated Calcium Carbonates.







The first process is the extraction of the Calcium Carbonate mineral (limestone) from the quarry. After crushing and classification, a selected raw material is obtained which is then used in the process of calcination.



The calcination step is carried out in energy efficient regenerative kilns where Calcium Oxide (quicklime) is obtained. This product becomes the raw material used for the rest of the manufactured products.



Calcium Oxide slaking takes place in a continuous hydrator where Calcium Hydroxide (slaked lime) is obtained.



Customized Precipitated Calcium Carbonate (PCC) is obtained by reacting in adjusted physico-chemical conditions slaked lime with CO2 coming from the calcination process.



Leadership is achieved by applying innovative technology, improvement of processes and the development of new products and services.

Cales de Llierca and the Calcinor Group collaborate with multidisciplinary teams of basic research, applied process engineering, external alliances with Technological Centers and customer partnerships to the implementation of our R&D strategy.