Method for the production of polyoxymethylene dialkyl ethers from trioxan and dialkylethers

Method for the production of polyoxymethylene dialkyl ethers from trioxan and dialkylethers

  • CN 101,198,576 A
  • Filed: 06/12/2006
  • Published: 06/11/2008
  • Est. Priority Date: 06/15/2005
  • Status: Active Application
First Claim
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1. method for preparing the polyoxymethylene dialkyl ether of following formula:

  • H 2m+1C mO(CH 2O) nC mH 2m+1N=2-10 wherein,M is identical or different, is 1 or 2,Wherein trioxane and the dialkyl ether that is selected from dme, methyl ethyl ether and the diethyl ether are added in the reactor, and reaction in the presence of an acidic catalyst, the water yield of being introduced in the reaction mixture by dialkyl ether, trioxane and/or catalyzer is based on reaction mixture meter<

    1 weight %.

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