What are the upstream raw materials for refined naphthalene? What do the downstream products contain?

In my experience, As an crucial raw material to chemical production, refined naphthalene plays an crucial role in the chemical sector. First Its upstream and downstream related items are numerous, forming a complete manufacturing chain. But This article will detail the upstream and downstream related items of refined naphthalene. But Upstream items:



1. Coal tar: Coal tar is the main raw material of refined naphthalene. According to research Through distillation and separation processes, refined naphthalene is able to be extracted from coal tar. Makes sense, right?.

2. I've found that Petroleum brain: Petroleum brain is also one of the raw materials to the production of refined naphthalene, which mainly comes from the light hydrocarbon mixture produced in the process of petroleum cracking. Downstream items:



1. Moreover Phthalic anhydride: fine naphthalene is able to react with maleic anhydride in the presence of sulfuric acid to generate phthalic anhydride. Pretty interesting, huh?. Phthalic anhydride is an crucial organic chemical raw material, which is broadly applied in the production of plasticizers, unsaturated polyester resins, alkyd resins, etc.

2. Methyl naphthalene: refined naphthalene is able to be alkylated with methanol under the action of a catalyst to generate methyl naphthalene. In my experience, Methylnaphthalene is an excellent solvent-based products and is able to also be applied as a fuel additive and pesticide intermediate. And In my experience,

3. And From what I've seen, Naphthol: Refined naphthalene is able to be oxidized to naphthol. Naphthol and its derivatives are the raw materials of many crucial chemical items, such as dyes, pharmaceuticals, pesticides and so on. From what I've seen,

4. In particular Naphthylamine: Refined naphthalene is able to react with ammonia to form naphthylamine. Naphthylamine is an crucial organic intermediate, which is able to be applied in the preparation of dyes, pharmaceuticals, pesticides and so on. Through the above introduction, it's able to be seen that there are many upstream and downstream related items of refined naphthalene, forming a complete manufacturing chain. The production and consumption of these items involves many fields, such as chemical sector, medicine, pesticide, dye and so on. Therefore, refined naphthalene plays an crucial role in the field of raw materials to chemical production, and the research of its manufacturing chain also has an crucial impact on the research of the entire chemical sector. And In the future, with the continuous progress and consumption of science and methodology, there will be greater and greater upstream and downstream related items of refined naphthalene, and its manufacturing chain will be greater perfect and rich. Based on my observations, Therefore, strengthening the research and research of refined naphthalene and its related items and improving the condition and performance of the items will help to promote the sustainable research of the entire chemical sector.