The manufacturing method of ammonium nitrate is a widely used chemical, mainly used in the production of fertilizers and explosives. The manufacturing process involves a series of chemical reactions and operations, and this article will provide a detailed introduction to the manufacturing method of ammonium nitrate
1、 Raw material preparation: The production of ammonium nitrate requires the preparation of the following raw materials: nitric acid, ammonia solution, and water. Among them, the ratio of nitric acid and ammonia water is 1:1, and the amount of water is determined based on the required concentration of ammonium nitrate
2、 Reaction kettle setting: Add the prepared raw materials to the reaction kettle, which needs to have stirring and heating functions. At the same time, it is necessary to set up the temperature and pressure control system of the reaction kettle to ensure the smooth progress of the reaction
3、 Reaction process
1 Add nitric acid and ammonia water in a certain proportion to the reactor, start the stirring device, and fully mix the raw materials
2. Heat the reaction vessel to raise the temperature inside to the set value and initiate a chemical reaction. At this point, nitric acid and ammonia water will undergo a neutralization reaction, producing ammonium nitrate and water
During the reaction process, it is necessary to continuously monitor the temperature and pressure changes inside the reactor to ensure the smooth progress of the reaction. If abnormal temperature or pressure is found, it is necessary to adjust the reaction conditions in a timely manner
4. After the reaction is completed, stop heating and stirring, open the reaction kettle, and release the generated ammonium nitrate solution
4、 Post processing
1 Filter the released ammonium nitrate solution to remove impurities and insoluble substances
2. Concentrate or dilute the filtered solution according to the required concentration of ammonium nitrate
3. Crystallize the concentrated or diluted ammonium nitrate solution to obtain ammonium nitrate crystals
4. Finally, dry and package the ammonium nitrate crystals to obtain the finished ammonium nitrate
5、 Notes
1 In the manufacturing process, it is necessary to pay attention to the proportion of raw materials and the order of addition to ensure the smooth progress of the reaction
The temperature and pressure control system of the reactor needs to be precise and reliable to avoid safety accidents
During the post-treatment process, attention should be paid to the concentration and crystallization conditions of the solution to obtain high-quality ammonium nitrate crystals
In summary, the manufacturing of ammonium nitrate requires strict adherence to relevant operating procedures and safety regulations to ensure the smooth progress of the manufacturing process and stable and reliable product quality.
