Acetic acid production method

Acetic acid production method

  • CN 104,169,249 A
  • Filed: 03/12/2013
  • Published: 11/26/2014
  • Est. Priority Date: 03/14/2012
  • Status: Active Application
First Claim
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1. the preparation method of an acetic acid, it is that the mixture that contains hydrogen iodide, water, methyl iodide, acetic acid and methyl acetate is distilled, from this mixture separation, go out to contain the overhead product of low boiling point component, make this overhead product condensation separatory, thereby the method for preparing acetic acid, the method comprises:

  • By containing the mixture that water that concentration is the significant quantity below 5 % by weight and concentration is the methyl acetate of 0.5~

    9 % by weight, distill, be separated into the overhead product that contains methyl iodide and side run-off or the tower bottom flow that contains acetic acid.

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