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Method for refining easily polymerizable matter-containing substance and apparatus therefor

  • US 20040050681A1
  • Filed: 08/15/2003
  • Published: 03/18/2004
  • Est. Priority Date: 04/05/1999
  • Status: Active Grant
First Claim
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1. A method for refining or separating an easily polymerizable matter-containing substance by the use of a distillation column equipped with a heat exchanger, which method comprises:

  • setting a linear velocity of the vapor in at least one connecting line between the distillation column and the heat exchanger at a level of not less than 5 m per second and a retention time of the vapor in the (inter) connecting line at a level of not more than 3 seconds excluding zero.

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