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PROCESS FOR ACRYLATE PRODUCTION

  • US 20150141693A1
  • Filed: 07/02/2013
  • Published: 05/21/2015
  • Est. Priority Date: 07/02/2012
  • Status: Abandoned Application
First Claim
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1. A method for the production of an acrylate ester from ethylene oxide in a continuous flow process, the method comprising the steps of:

  • a) contacting a process stream comprising ethylene oxide and an organic solvent with a carbonylation catalyst in the presence of carbon monoxide to provide a reaction stream containing beta propiolactone formed from the ethylene oxide;

    b) applying the reaction stream containing the beta propiolactone to a nanofiltration membrane to produce;

    i) a permeate stream comprising beta propiolactone and a first portion of the organic solvent, andii) a retentate stream comprising carbonylation catalyst and a second portion of the organic solvent; and

    c) treating the permeate stream under conditions to convert the beta propiolactone into an acrylate ester.

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