High-efficiency production method for ethylene glycol

High-efficiency production method for ethylene glycol

  • CN 102,649,698 A
  • Filed: 02/25/2011
  • Published: 08/29/2012
  • Est. Priority Date: 02/25/2011
  • Status: Active Application
First Claim
Patent Images

1. the efficient production method of a terepthaloyl moietie is a raw material with the barkite, is catalyzer with cupric or its oxide compound, is 170~

  • 270 ℃

    in temperature of reaction, and the barkite weight space velocity is 0.2~

    5 hour -1, hydrogen/ester mol ratio is 40~

    200;

    1, and reaction pressure is under 1.5~

    10MPa condition, and raw material contacts with catalyst reactor, generates the elute that contains terepthaloyl moietie, it is characterized in that said reactor drum is the shell-and-tube reactor of subregion heat exchange.

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