Terephthalic Acid Synthesis at Higher Concentrations in High-Temperature Liquid Water. 1. Effect of Oxygen Feed Method

@inproceedings{Osada2009TerephthalicAS,
  title={Terephthalic Acid Synthesis at Higher Concentrations in High-Temperature Liquid Water. 1. Effect of Oxygen Feed Method},
  author={Mitsumasa Osada and Phillip E. Savage},
  year={2009}
}
We conducted terephthalic acid (TPA) synthesis from p-xylene in high-temperature liquid water (HTW) at 300°C. The p-xylene concentration at the reaction condition was 0.2 mol L−1, which is the highest to date in research that achieved at least 80 mol % yields of TPA in HTW. Pure oxygen gas was the oxidant. Increasing the MnBr2 catalyst concentration increased the rate of TPA formation only slightly. In contrast, whether oxygen was fed in small, quick, discrete bursts, or fed continuously… CONTINUE READING

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