Claims
- 1. The method of purifying propylene oxide prepared by reaction of an organic hydroperoxide with propylene and containing less than 0.05 ppm by weight of poly (propylene oxide) having a molecular weight of at least 50,000 and containing contaminating amounts of one or more of methyl formate, acetaldehyde, propionaldehyde and C.sub.4 -C.sub.7 hydrocarbon impurities which comprises contacting a liquid mixture of said propylene oxide and impurity with a solid activated carbon absorbent and separating propylene oxide having a reduced impurity content from the absorbent.
RELATED APPLICATIONS
This application is a continuation-in-part of copending application Ser. No. 07/936,965 filed Aug. 28, 1992, now abandoned which is a continuation-in-part of application Ser. No. 07/839,985 filed Feb. 20, 1992, now U.S. Pat. No. 5,187,287.
US Referenced Citations (19)
Foreign Referenced Citations (2)
Number |
Date |
Country |
1300537 |
Aug 1969 |
DEX |
118873 |
Mar 1976 |
DEX |
Continuation in Parts (2)
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Number |
Date |
Country |
Parent |
936965 |
Aug 1992 |
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Parent |
839985 |
Feb 1992 |
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