Mixed xylenes are produced by high severity catalytic reforming of naphtha, from which the C8 stream contains ortho-, meta-, and para-xylenes, and ethylbenzene. Xylenes are also obtained from the pyrolysis gasoline stream in a naphtha steam cracker and by toluene disproportionation. The xylenes are passed through a splitter where the bottom stream with a targeted amount of OX is sent to an OX distillation column to produce high purity product.
Orthoxylene
Price Reports
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Orthoxylene
Uses and Outlook
Orthoxylene (OX) is the second largest of the three commercial isomers of xylene. Almost all OX output is consumed in the manufacture of phthalic anhydride (PA), which has three principal uses: phthalate plasticisers used in the compounding of polyvinyl chloride (PVC) resins; unsaturated polyesters resins (UPRs) used in glass-reinforced thermoset engineering applications; and alkyd resins used mainly for surface coatings.
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