Patent · US Expired

Process for recovering ethylene oxide from aqueous solutions

US4437938A · kind A · utility

17Cited by
11References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 17, 1981
Grant dateMar 20, 1984
Priority date—
Expiry dateJul 17, 2001

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01D11/0407
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Ethylene oxide is recovered from aqueous solutions by extracting with carbon dioxide in the near-critical or super-critical state, thereby selectively removing the ethylene oxide from water, and thereafter recovering ethylene oxide from the carbon dioxide by distillation or other suitable means.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.