The need for chemical fertilizers is increasing, both due to the soil exhaustion and the increase of agricultural production. Filtration, separation and purification applications have shown a fast payback by increasing the production, efficiency, production capacity and decreasing the costs of raw materials and catalysts. Some of the applications that bring the most benefits include: the protection of platinum sieves in the Nitric Acid plant, the protection of static and dynamic equipment in Ammonia and Urea plants and the recovery of carry-over platinum in the Nitric Acid streams.