Method for breaking emulsification of crude oil

Method for breaking emulsification of crude oil

  • CN 100,415,855 C
  • Filed: 09/26/1995
  • Issued: 09/03/2008
  • Est. Priority Date: 10/06/1994
  • Status: Active Grant
First Claim
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1. the method for a breaking emulsification of crude oil, comprising the alcoxylates breaking emulsification of crude oil of using few amine or polyamine, the alcoxylates of described few amine or polyamine divides the preparation of two steps by following method, wherein each divides the polyalkylene polyamine of 3~

  • 10 nitrogen-atoms of subband, weight-average molecular weight is 600~

    10,000,000 polyvinylamine or weight-average molecular weight are 2000~

    50,000 polymine is used as few amine or polyamine, in its first step, there are being water or water and alcohol and/or sour mixture to exist and do not having under the situation of neutrality or basic catalyst existence, each NH base addition 1 molecule alkylene oxide on few amine or polyamine, in its second step, after removing water and acid, under the situation that has a kind of traditional neutrality or basic catalyst to exist, carry out and the further reaction of alkylene oxide, before wherein carrying out, add organic solvent or thinner from following cohort in second step;

    (f) aromatic hydrocarbonAnd also contain used solvent or thinner from compound cohort (f).

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