Waste plaster casts and fireclay as a by-product
The manufacturing process of porcelain sanitary equipment undertaken by Roca Radiadores, S.A., is based on the casting, drying, enamelling and firing of the ceramic paste through different operations. Different mineral materials such as clay, kaolin, feldspar and silica are used as raw materials. The plaster molds used for the manufacture of ceramic pieces are produced in the same plant and are made of a mixture of plaster and water. Nevertheless, every 90 pieces manufactured they have to be replaced by new molds due to the clogging.
This process generates large quantities of waste that can b