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US09399617B2 Concentration of the urea solution in a process for the synthesis of urea 有权
在尿素合成过程中浓缩尿素溶液

  • Patent Title: Concentration of the urea solution in a process for the synthesis of urea
  • Patent Title (中): 在尿素合成过程中浓缩尿素溶液
  • Application No.: US14417679
    Application Date: 2013-07-03
  • Publication No.: US09399617B2
    Publication Date: 2016-07-26
  • Inventor: Andrea Scotto
  • Applicant: Casale SA
  • Applicant Address: CH
  • Assignee: Casale SA
  • Current Assignee: Casale SA
  • Current Assignee Address: CH
  • Agency: Akerman LLP
  • Priority: EP12178262 20120727
  • International Application: PCT/EP2013/064045 WO 20130703
  • International Announcement: WO2014/016090 WO 20140130
  • Main IPC: C07C273/16
  • IPC: C07C273/16 ;  C07C273/04 ;  B01J19/24
Concentration of the urea solution in a process for the synthesis of urea
Abstract:
A process and a related plant for the synthesis of urea, where a solution (13) comprising urea is obtained in a synthesis section (10), said solution is treated in a recovery section (14), and an aqueous solution (15) comprising mainly urea and water, which is obtained from said recovery section, is concentrated by means of contact with a water-selective membrane.
Abstract(Chinese):

一种用于合成尿素的方法和相关设备，其中在合成部分（10）中获得包含尿素的溶液（13），所述溶液在回收部分（14）中处理，所述水溶液（15）包含 主要是从所述回收部分获得的尿素和水通过与水选择性膜接触而被浓缩。

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