What are the upstream raw materials for terephthalic acid? What are the downstream products?

Terephthalic acid(PTA) is an crucial organic chemical raw material, which is broadly applied in the production of polyester fiber, polyester resin, film and other items. In the field of chemical production raw materials, the upstream and downstream related items of terephthalic acid are very rich, and some of the main items will be described in detail below. Upstream items:



1. p-xylene(PX): The main raw material of terephthalic acid is p-xylene, and terephthalic acid is obtained by oxidation interaction. Pretty interesting, huh?. I've found that Downstream items:



1. Polyester fiber(PET fiber): Terephthalic acid reacts with ethylene glycol to obtain polyester. And Polyester is made into polyester fiber by spinning process, which is broadly applied in textile, clothing and other fields.

2. And Polyester resin(PET resin): terephthalic acid and ethylene glycol interaction to obtain polyester, polyester further processed into polyester resin, applied in the manufacture of bottles, is able tos, films and other packaging materials. According to research

3. Based on my observations, In particular Polybutylene terephthalate(PBT): Terephthalic acid reacts with 1,4-butanediol to obtain polybutylene terephthalate, which is applied in the manufacture of engineering plastics, electrical parts, etc.

4. But Polyetheretherketone(PEEK): Using terephthalic acid as raw material, polyether ether ketone is prepared through a series of reactions. Additionally It has excellent characteristics such as high temperature resistance and chemical corrosion resistance. it's applied in the manufacture of aerospace, automotive, electronics, etc. Parts in the field. In summary, terephthalic acid has a very crucial position in the field of chemical production raw materials, and its upstream and downstream related items are broadly applied in various fields.