GB564646A - Improvements in or relating to the recovery of ethylene oxide - Google Patents
Improvements in or relating to the recovery of ethylene oxideInfo
- Publication number
- GB564646A GB564646A GB357843A GB357843A GB564646A GB 564646 A GB564646 A GB 564646A GB 357843 A GB357843 A GB 357843A GB 357843 A GB357843 A GB 357843A GB 564646 A GB564646 A GB 564646A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethylene oxide
- relating
- recovery
- solvent
- absorbing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/32—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Epoxy Compounds (AREA)
Abstract
Ethylene oxide is recovered from dilute gaseous mixtures by absorbing the ethylene oxide in an aqueous solvent, treating the solvent under reduced pressure with air or inert gas to expel the ethylene oxide, and absorbing this from the resulting mixture at a higher pressure in a smaller quantity of aqueous solvent than that used in the first stage. The first solution may be stripped at a pressure of 50 min. of mercury, and the amount of solvent in the second stage may be one-tenth of that of the first. Specification 533,054 is referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB357843A GB564646A (en) | 1943-03-04 | 1943-03-04 | Improvements in or relating to the recovery of ethylene oxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB357843A GB564646A (en) | 1943-03-04 | 1943-03-04 | Improvements in or relating to the recovery of ethylene oxide |
Publications (1)
Publication Number | Publication Date |
---|---|
GB564646A true GB564646A (en) | 1944-10-06 |
Family
ID=9760980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB357843A Expired GB564646A (en) | 1943-03-04 | 1943-03-04 | Improvements in or relating to the recovery of ethylene oxide |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB564646A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3165539A (en) * | 1960-07-08 | 1965-01-12 | Halcon International Inc | Recovery of ethylene oxide from a liquid mixture thereof with normally gaseous impurities |
US3287234A (en) * | 1960-08-15 | 1966-11-22 | Ici Ltd | Extractive distillation of propylene oxide containing halohydrocarbon impurities |
EP0516963A2 (en) * | 1991-05-27 | 1992-12-09 | Air Products Gmbh | Process and apparatus for recovering sterilizing gas |
US8053586B2 (en) | 2008-07-31 | 2011-11-08 | Dow Technology Investments Llc | Alkylene oxide recovery systems |
US10471371B2 (en) | 2008-01-25 | 2019-11-12 | Dow Technology Investments Llc | Reflux condenser method |
-
1943
- 1943-03-04 GB GB357843A patent/GB564646A/en not_active Expired
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3165539A (en) * | 1960-07-08 | 1965-01-12 | Halcon International Inc | Recovery of ethylene oxide from a liquid mixture thereof with normally gaseous impurities |
US3287234A (en) * | 1960-08-15 | 1966-11-22 | Ici Ltd | Extractive distillation of propylene oxide containing halohydrocarbon impurities |
EP0516963A2 (en) * | 1991-05-27 | 1992-12-09 | Air Products Gmbh | Process and apparatus for recovering sterilizing gas |
EP0516963A3 (en) * | 1991-05-27 | 1993-05-19 | Air Products Gmbh | Process and apparatus for recovering sterilizing gas |
US5472667A (en) * | 1991-05-27 | 1995-12-05 | Air Products Gmbh Werk Hattigen | Method and apparatus for recovering a sterilizing gas |
US10471371B2 (en) | 2008-01-25 | 2019-11-12 | Dow Technology Investments Llc | Reflux condenser method |
US8053586B2 (en) | 2008-07-31 | 2011-11-08 | Dow Technology Investments Llc | Alkylene oxide recovery systems |
US8129551B2 (en) | 2008-07-31 | 2012-03-06 | Dow Technology Investments Llc | Alkylene oxide recovery systems |
US8183400B2 (en) | 2008-07-31 | 2012-05-22 | Dow Technology Investments Llc | Alkylene oxide recovery systems |
US8257558B2 (en) | 2008-07-31 | 2012-09-04 | Dow Technology Investments Llc | Alkylene oxide purification systems |
US8476464B2 (en) | 2008-07-31 | 2013-07-02 | Dow Technology Investments Llc | Alkylene oxide purification systems |
US8845863B2 (en) | 2008-07-31 | 2014-09-30 | Dow Technology Investments Llc | Alkylene oxide purification processes and systems |
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