Nitric acid concentration

Due to its chemical properties, nitric acid cannot be concentrated by fractional distillation above 68 %, as it forms an azeotrope with water. To reach a concentrated nitric acid concentration with up to 99% wt, the water needs to be extracted using an extractive agent (e.g. sulphuric acid).

Bertrams nitric acid concentration systems combine state-of-the-art process technology with safe and robust engineering made in Switzerland. In combination with a NOX absorption system, recovery yields reach almost 100 %.

The Bertrams nitric acid concentration process ensures energy-efficient and safe operation of the plant as well as flexible solutions for various applications. Perfect process control and high-quality products are the result.