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[Chemical Knowledge]：What are the upstream raw materials of DINP and what are the downstream products?

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DINP, also known as diisononyl phthalate, is a widely used plasticizer, mainly used in plastic and rubber products to increase their flexibility and ductility. In the field of raw materials for chemical production, the upstream and downstream related products of DINP mainly include the following aspects:

upstream products:

1. Phthalic anhydride: Phthalic anhydride is one of the main raw materials of DINP, which is oxidized by benzene and oxygen under the action of catalyst. Phthalic anhydride production technology and equipment is relatively mature, both at home and abroad have a large number of manufacturers.
2. Iso-nonanol: Iso-nonanol is another main raw material of DINP, which is made by hydroformylation, hydrogenation and distillation of hydrocarbons. The production process of isononyl alcohol is complex and requires a high level of technology and production equipment.

downstream products:

1. PVC products: DINP as a plasticizer, widely used in PVC products, such as PVC pipes, profiles, wires and cables. The addition of DINP can make PVC products softer and easier to process, while also improving their cold and oil resistance.
2. Rubber products: DINP can also be used in rubber products, such as tires, hoses, tapes, etc. The addition of DINP can improve the processability of rubber and increase its flexibility and ductility.
3. Other plastic products: In addition to PVC products and rubber products, DINP can also be used in other plastic products, such as artificial leather, waterproof coils, toys, etc. Adding DINP can improve the flexibility and durability of these products.

In short, DINP, as an important plasticizer, has a wide range of applications in the field of chemical production raw materials. Its upstream and downstream related products cover many fields, such as plastics, rubber, chemicals, etc. With the continuous development of science and technology, the application field of DINP will continue to expand.

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