The manufacturing method of diammonium phosphate is a widely used chemical, mainly used as fertilizer and food additive. Its manufacturing process involves multiple steps, including reaction, crystallization, drying, and packaging. This article will provide a detailed introduction to the manufacturing method of diammonium phosphate
1、 The main raw materials for manufacturing diammonium phosphate are phosphoric acid and ammonia. Phosphoric acid can be obtained by acid hydrolysis of phosphate rock, while ammonia typically comes from synthetic ammonia plants. Both of these raw materials need to reach a certain purity before they can be used for production
2、 Reaction process
1 Neutralization reaction: Mix phosphoric acid and ammonia in a certain proportion to undergo neutralization reaction and generate monoammonium phosphate. This reaction is exothermic and requires controlling the reaction temperature to avoid material loss
2. Reaction of monoammonium phosphate with ammonia: React monoammonium phosphate with excess ammonia to produce diammonium phosphate. This step of the reaction also requires temperature and time control to ensure complete progress
3、 The crystallization process is required to produce a solution of diammonium phosphate through the reaction in order to obtain a product with higher purity. During the crystallization process, temperature and stirring speed need to be controlled to promote crystal growth and precipitation
4、 The wet material of ammonium phosphate obtained by drying and packaging
crystallization needs to be dried to remove excess moisture. The dried product needs to be packaged for storage and transportation
The above is the basic manufacturing process of diammonium phosphate, and the specific operation may vary depending on different production equipment and process conditions. In order to ensure the quality and output of products, it is necessary to strictly control the parameters of each step during the production process, such as temperature, pressure, material ratio, etc
In addition, the production of diammonium phosphate also needs to consider environmental and safety issues. The exhaust gas, wastewater, and solid waste generated during the production process need to be properly treated to avoid any impact on the environment and human health. At the same time, production equipment and operating processes also need to comply with relevant safety regulations to ensure the personal safety of employees
In summary, the manufacturing process of diammonium phosphate involves multiple links and parameter control, requiring rigorous operation and management to ensure product quality and output. At the same time, environmental and safety issues also need to be given sufficient attention and addressed to ensure the sustainability of production and the physical and mental health of employees.
