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

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Metallocene is an important class of organometallic compounds, widely used in the field of chemical production raw materials. The upstream and downstream related products of metallocene are very rich, and some of the main upstream and downstream products will be introduced below.

upstream products:

1. Olefins: The production of metallocene usually uses olefins as raw materials, such as ethylene, propylene, etc. The olefin is reacted with a metallocene group to form the corresponding metallocene compound.
2. Metal salts: The production of metallocenes also requires metal salts as raw materials, such as magnesium chloride, zinc chloride, etc. The metal salt reacts with the olefin to form a metallocene compound.

downstream products:

1. Polyethylene: Metallocene can be used as a catalyst for the production of polyethylene. Metallocene catalysts have the advantages of high activity and high selectivity, and can produce high-performance polyethylene products.
2. Polypropylene: Metallocene catalysts can also be used in the production of polypropylene. By adjusting the catalyst formulation and reaction conditions, polypropylene products with different properties can be produced.
3. Ethylene-vinyl acetate copolymer (EVA): metallocene catalyst can be used to produce EVA, the material has excellent weather resistance, chemical resistance, electrical insulation and other characteristics, widely used in solar cells, wire and cable and other fields.
4. Elastomers: Metallocene catalysts can also be used to produce elastomers, such as ethylene propylene rubber, butyl rubber, and the like. These elastomers have excellent aging resistance, ozone resistance, etc., and are widely used in tires, seals, and other fields.

In short, the upstream and downstream related products of metallocene are very extensive, involving many fields, such as plastics, rubber, chemical fiber, etc. With the continuous development of science and technology, the application field of metallocene will continue to expand.

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