Concentration of the urea solution in a process for the synthesis of urea

Concentration of the urea solution in a process for the synthesis of urea

  • CN 104,603,103 A
  • Filed: 07/03/2013
  • Published: 05/06/2015
  • Est. Priority Date: 07/27/2012
  • Status: Active Application
First Claim
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1. the technique for urea synthesis, wherein obtain urea-containing solution (13) in synthesis stage (10), described solution is processed at recovery zone (14), and concentration technology is carried out to the aqueous solution (15) mainly comprising urea and water obtained from described recovery zone, it is characterized in that, described concentration technology comprises selective membrane separating step.

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