We have a number of rubber-lined storage tanks for storing 54% concentrated phosphoric acid. Due to the rubber-lined tanks, we face high maintenance costs every year. We are currently in a phase to increase our storage capacity. Please let us know if we can install a large tank having a diameter of approximately 18 meters and a height of 13 meters with some stainless steel grade material?
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Re: What is the proper MOC for a phosphoric acid storage tank?
14 February 2012 at 1:29pmThe proper MOC for a phosphoric acid storage tank will depend on its purity and in particular, the concentrations of halides such as chlorides, and fluorides. Recommended materials of construction for a refined product storage tank would be fiberglass reinforced plastic, rubber-lined mild steel (like you probably have already), 316L stainless steel, polypropylene, and polyethylene. Of course not all of these materials may be suitable for a tank as large as yours. For more detailed information you should consult a reference text such as "Materials Selector for Hazardous Chemicals, Vol. MS-7: Phosphoric Acid," published by MTI.
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