Fundiciones SUÑER, foundry of steel from Catalonia using alkaline phenolic resin for the agglomeration of sands, has purchased a Unit Secundary Attrition USR 5:2 to OMEGA which is due to the month of April 2011 is operational. The aim is to reduce purchases and sand dumped by 90%. It has been assessed, compared to the option of purchasing a thermal reclamation, but a lower investment and energy costs in the process of recovery is 70% lower for the recovery by USR.