Urea Ammonia Nitrate (UAN) Corrosion Management

Benefits of UAN corrosion inhibitors 

• Reduce general corrosion and pitting potential in UAN transfer lines and storage vessels
• Increases value-addition for UAN products
• Traceable additive to target correct dosage
• Reduce maintenance costs
• Increase the lifespan and reliability of your equipment

What is Urea Ammonium Nitrate (UAN)?

Urea ammonium nitrate (UAN) is a liquid fertilizer solution produced by combining urea, ammonia and nitric acid. It is highly desirable as it can be applied by customers more evenly and has a better foliage uptake of nitrogen than dry fertilizer products.

What are the effects of UAN corrosion?

Due to the low pH, excess ammonia and resident times in storage and transfer equipment, the UAN solution can be highly corrosive. If not adequately treated, UAN corrosion can lead to:

• Premature storage tank failure
• Build-up of corrosion by-product sludge in storage tanks, railcars, and low spots in transfer piping
• Costly repairs to storage and transfer equipment
• Loss of product quality and throughput
• Health, environmental and safety risks associated with failures

How can Veolia help me manage UAN corrosion-related problems?

Our UAN corrosion inhibitors are specifically designed for the agricultural chemical industry and incorporate corrosion inhibitors to address potential corrosion in the UAN production, storage and transportation process.