An Advanced Purified Terephthalic Acid Process

Sung Hwa Jhung, Ki Hwa Lee, Youn Seok Park, Jin S. Yoo

Research output: Contribution to journalConference articlepeer-review

Abstract

A remarkable breakthrough, which offered an advanced purified terephthalic acid (PTA) process, was developed. The catalytic activity and selectivity toward terephthalic acid was significantly enhanced by injecting CO2 in the feed stream for the liquid phase O2 oxidation over the conventional MC-type catalyst. The liquid phase O2 oxidation of p-xylene and m-xylene proceeded at a much faster rate under milder conditions to produce terephthalic acid and isophthalic acid, respectively, in the co-presence of CO2 over the MC-type catalyst. The striking function of CO2 for the O2 oxidation of p-xylene in the MC-type catalyst was summarized.

Original languageEnglish
Pages (from-to)389-390
Number of pages2
JournalACS Division of Petroleum Chemistry, Inc. Preprints
Volume46
Issue number4
StatePublished - Aug 2001
EventACS 222nd National Meeting - Chicago, IL, United States
Duration: 26 Aug 200130 Aug 2001

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