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Petrochemical-Aromatics Paraxylene is a hydrocarbon aromatic compound which is produced from the aromatication process of the heavy naphtha at a platformer unit and then separated to produce benzene with extraction and paraxylene with absorption. It is a clear liquid derived from the refining of crude oil. Its primary commercial use is as feedstock for purified terephthalic acid (PTA), which in turn is the main ingredient of polyester. Paraxylene – known in the business as PX – is traded as a commodity. |
Mixed-Xylene There are three types of Xylene M, O & P Mixed Xylene is a mixture of them. Mixed xylenes are used in the production of ethylbenzene, as solvents in products such as paints and coatings, and are blended into gasoline. A mixture of xylene isomers used as a solvent in making lacquers and rubber cement and as an aviation fuel. Commercial or mixed xylene usually contains about 40-65% m-xylene and up to 20% each of o-xylene and p-xylene and ethylbenzene. Mixed xylene is one of the important basic chemical raw materials. It mainly contains p-xylene, o-xylene, m-xylene and 4 ethylphenyl aromatics. Mixed xylene can be divided by aromatics it contains into solvent-grade varieties and isomerization-grade varieties. Isomerization-grade varieties are mainly used in the production of p-xylene and oxylene. Solvent-grade varieties can be used to produce solvents, aviation gasoline additives, pesticides, paints and printing inks. |
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