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[Chemical Knowledge]：What are the upstream raw materials of nitrogen fertilizer? What do the downstream products contain?

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In the field of raw materials for chemical production, the upstream and downstream related products of nitrogen fertilizer are quite abundant. This paper will detail the upstream and downstream related products of nitrogen fertilizer, including upstream raw materials, downstream products and by-products in the production process.

1. Upstream Raw Material

1. Natural gas: Natural gas is one of the main raw materials in the production of nitrogen fertilizer. It produces hydrogen from natural gas and then reacts with nitrogen to make synthetic ammonia, thus producing nitrogen fertilizer.
2. Coal: Coal is another commonly used raw material for nitrogen fertilizer production. It is made into synthesis gas through coal gasification, transformation, purification and other processes, and then further produces synthetic ammonia and nitrogen fertilizer.
3. Gypsum: In the process of producing phosphate fertilizer, gypsum is a commonly used additive, which can adjust the pH and improve the fertilizer efficiency of phosphate fertilizer.

2. downstream products

1. Urea: Urea is a common nitrogen fertilizer with a high concentration of nitrogen, easy to store and transport, and widely used in agricultural production.
2. Ammonium nitrate: Ammonium nitrate is a nitrogen fertilizer with high nitrogen content, which can be used to make compound fertilizer, gunpowder, etc.
3. ammonium chloride: ammonium chloride is a commonly used nitrogen fertilizer, can also be used in electroplating, medicine and other fields.

3. by-product

1. methanol: in the process of producing synthetic ammonia, methanol will produce by-product, methanol can be used to produce formaldehyde, acetic acid and other chemicals.
2. Carbon dioxide: The process of producing synthetic ammonia also produces carbon dioxide gas, which can be used to produce carbonated beverages, dry ice, etc.

4. related products

1. Phosphate fertilizer: The production process of nitrogen fertilizer is often related to the production of phosphate fertilizer, which can form compound fertilizer together to improve fertilizer efficiency.
2. Potash fertilizer: Potash fertilizer is also a kind of fertilizer commonly used in agricultural production, which together with nitrogen fertilizer and phosphorus fertilizer constitute the three major nutrient elements necessary for the growth of crops.

To sum up, the upstream and downstream related products of nitrogen fertilizer are quite rich, involving many fields, such as natural gas, coal, chemical industry, agriculture and so on. Understanding these related products is helpful to better understand the production process and market situation of nitrogen fertilizer, and provide decision support for the production and operation of enterprises. At the same time, with the continuous progress of science and technology and the improvement of environmental protection requirements, the production process and raw material use of nitrogen fertilizer are also constantly improved and optimized to meet the market demand and environmental protection requirements. Therefore, enterprises need to pay attention to market changes and technological progress, strengthen communication and cooperation with upstream and downstream industries, improve production efficiency and product quality, and achieve sustainable development.

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