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[Chemical Knowledge]：What are the upstream raw materials for urea? What are the downstream products?

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Upstream and downstream related products
of urea
urea as an important raw material for chemical production, has a wide range of applications in the industrial field. Its upstream and downstream related products are numerous, forming a complete industrial chain. This article will introduce the upstream and downstream related products of urea, including upstream raw materials, downstream products, by-products and wastes in the production process.

1. Upstream Raw Material

1. Natural Gas

Natural gas is one of the main raw materials for urea production. Synthetic ammonia is produced from natural gas and then reacts with carbon dioxide to produce urea. Therefore, the supply and price of natural gas have an important influence on the production cost of urea.

2. Coal

Coal is another raw material for the production of urea, from which synthesis gas is produced, and urea is further synthesized. In some areas, due to the abundant coal resources, coal to urea has become an important mode of production.

3. Limestone

Limestone is used as an absorbent in urea production to absorb carbon dioxide generated in the production process and generate calcium carbonate.

2. downstream products

1. Compound fertilizer

urea can be used as nitrogen fertilizer for the production of compound fertilizer, combined with phosphorus, potassium and other elements, made of compound fertilizer containing a variety of nutrients to meet the needs of crop growth.

2. feed additive

urea can be used as an animal feed additive to provide nitrogen source and promote animal growth. At the same time, urea can also be used to produce feed for ruminants such as cattle and sheep to increase the protein content of the feed.

3. melamine

urea can be used to produce melamine, melamine is an important chemical raw material, widely used in wood processing, plastics, coatings and other fields.

4. Urea-formaldehyde resin
Urea-formaldehyde resin can be prepared
the reaction of urea and formaldehyde. Urea-formaldehyde resin is an adhesive used in the production of wood-based panels, wood processing, etc.

3. by-products and waste

1. ammonia

in the urea production process will produce by-product ammonia, can be used for the production of ammonium sulfate and other fertilizers, can also be used as industrial cleaning agent.

2. Carbon dioxide

Urea production process will produce a lot of carbon dioxide gas, can be sold as industrial gas, can also be used for the production of sodium bicarbonate and other chemicals.

In summary, there are many upstream and downstream related products of urea, forming a complete industrial chain. Understanding the upstream and downstream related products of urea will help enterprises to better grasp market opportunities and improve economic efficiency. At the same time, it also helps to promote the sustainable development of the chemical industry.

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