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

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Industrial sulfur plays an important role in the field of raw materials for chemical production, and its upstream and downstream related products are extensive. The following will introduce the upstream and downstream related products of industrial sulfur in detail.

upstream products

1. natural sulfur: natural sulfur is the main raw material of industrial sulfur, mainly extracted from volcanic rocks, hot spring sediments, underground sulfur ore and salt lake brine.
2. Sulfur recovery: Sulfur recovery mainly comes from the tail gas recovery in the sulfuric acid production process, and the sulfur dioxide in the tail gas is converted into sulfur through a specific process.

Downstream Products

1. Sulfuric acid: The main downstream product of industrial sulfur is sulfuric acid, which is made by burning a mixture of sulfur and oxygen or air. Sulfuric acid is widely used in chemical industry, agriculture, medicine, metallurgy and other fields.
2. Phosphate fertilizer and compound fertilizer: sulfuric acid further reacts with phosphate rock to generate phosphoric acid, which in turn produces phosphate fertilizer and compound fertilizer, which plays an important role in agricultural production.
3. Vulcanized rubber: Sulfur can be used as a vulcanizing agent for rubber, used in the production of vulcanized rubber, and improve the wear resistance, aging resistance and corrosion resistance of rubber.
4. Carbon disulfide: Carbon disulfide can be produced by heating sulfur and coke in the furnace, which is used to produce man-made fibers, rubber accelerators, etc.
5. Other sulfur-containing compounds: Sulfur can also be used to produce various sulfur-containing compounds, such as sodium sulfide, zinc sulfide, barium sulfide, etc. These compounds are widely used in chemical industry, medicine, metallurgy and other fields.

To sum up, there are many upstream and downstream related products of industrial sulfur, involving many fields, which play an important role in the development of the entire chemical industry.

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