Control system of magnesia addition preparation process in the ammonium nitrate production

The control system of preparation process of magnesia addition for the ammonium nitrate production is a set of devices that provides automatic control of the neutralization process of nitric acid by the magnesia addition.

The purpose of this development is the creation of a continuous and constant monitoring (indication) of excess nitric acid and magnesia addition in the technological solution of the following composition:

– nitric acid – 0-35%;

– magnesium nitrate – 0-45%;

– water – other.

The system is designed to control the content of excess nitric acid, to determine the end point of neutralization and the formation and precipitation of iron hydroxide to optimize the magnesia addition preparation.

Using the system makes it possible to control the process of magnesia addition preparation, visualize information about the process, save and view the history of the process.