Basic introduction
Urea, also known as urea or carboxamide, is an organic compound with white crystals. It is composed of carbon, nitrogen, oxygen and hydrogen, and is known as one of the simplest organic molecules. As a neutral fertilizer, urea is suitable for all kinds of soils and plants, and it is easy to store and use, which is harmless to soil, so it has become a widely used chemical nitrogen fertilizer, and its nitrogen content ranks first. According to different production processes, urea can be subdivided into coal-fired urea, natural gas urea and coke oven gas urea.Industrial chain analysisThe upstream raw materials of urea mainly include synthetic ammonia, which plays a key role in the manufacturing process of urea. Usually, urea plant will be jointly built with synthetic ammonia plant to realize the optimization of economic benefits. The downstream products of urea are rich and diverse, covering agricultural ammonia fertilizer, melamine, urea-formaldehyde resin and urea for vehicles and many other fields.application areaFertilizer industryAs a fertilizer with high nitrogen content, urea is widely used in agriculture. Its convenient transportation and storage characteristics and economical price make urea the first choice for farmers. Urea can provide necessary nitrogen for plants, effectively promote plant growth, and help improve crop yield and quality.Plastic industryUrea is an important raw material for producing plastics such as bauspar and urea-formaldehyde resin. Urea-aldehyde resin, as a multifunctional resin, has been widely used in many fields such as wood, architecture, automobiles, electrical appliances, etc. Its excellent flame retardancy, water resistance, wear resistance and acid and alkali resistance make it a leader in the industry.pharmaceuticals industryUrea also plays an indispensable role in the medical field. It is used to treat dermatoses, lymphedema, liver cirrhosis, liver failure and other diseases. With its good permeability and moisture retention, it can soften the stratum corneum and promote cell renewal, thus effectively improving skin quality.Cosmetic industryUrea is often used as a humectant in cosmetics, which can make the skin softer and moisturized and help to adjust the pH value of the skin. At the same time, its antiseptic function also makes urea occupy a place in the cosmetics industry.food service industryUrea also has a unique application in the food industry. For example, adding urea to feed can increase the nitrogen content in animals, and then promote the healthy growth of animals. In addition, urea is added to flour to improve the quality of dough by promoting gluten formation and increasing protein content.