Success Story Summary
Chemical Storage Tank Protected by FOAMGLAS® Insulation for Two Decades and Again Specified for Retrofit
PCS Phosphate, a leading phosphate mining company and producer of phosphoric acid-based compounds, mines phosphate rock, produces phosphoric acid and combines the acid and aqueous ammonia to produce diammonium phosphate (DAP), an ingredient in fertilizer blends. In producing fertilizer products, prior to mixing, phosphoric acid and ammonia are stored in separate vessels. Ammonia requires a constant temperature of 40°F (4.44°C) to maintain its pressure below the design parameters of the storage spheres. This presents a significant challenge since humidity levels frequently reach 100 percent in Florida, along with 100°F (37.7°C) temperatures. To ensure that the ammonia is stored at the proper temperature, the sphere must have an insulation system that provides constant thermal efficiency and is impermeable to the destructive effects of moisture. PCS Phosphate solved this storage challenge by insulating its two 2,000-ton ammonia spheres with FOAMGLAS
®cellular glass insulation. FOAMGLAS
® Insulation was originally specified for the ammonia spheres when they were first installed in the 1960s and 1970s. When one of the spheres required a retrofit more than 20 years later, FOAMGLAS
® Insulation was chosen once again.
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