DE1618144B2 - Verfahren zur Reinigung von Acrylnitril - Google Patents
Verfahren zur Reinigung von AcrylnitrilInfo
- Publication number
- DE1618144B2 DE1618144B2 DE1618144A DE1618144A DE1618144B2 DE 1618144 B2 DE1618144 B2 DE 1618144B2 DE 1618144 A DE1618144 A DE 1618144A DE 1618144 A DE1618144 A DE 1618144A DE 1618144 B2 DE1618144 B2 DE 1618144B2
- Authority
- DE
- Germany
- Prior art keywords
- acrylonitrile
- oxazole
- water
- cleaning
- organic
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
- C07C253/34—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB19021/66A GB1131134A (en) | 1966-04-29 | 1966-04-29 | Improvements in or relating to the purification of acrylonitrile |
GB3296266 | 1966-07-22 | ||
GB3296266 | 1966-07-22 | ||
DEB0092275 | 1967-04-27 | ||
US84839869A | 1969-07-25 | 1969-07-25 | |
GB1902166 | 2019-02-15 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE1618144A1 DE1618144A1 (de) | 1972-01-27 |
DE1618144B2 true DE1618144B2 (de) | 1973-01-04 |
DE1618144C DE1618144C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-07-26 |
Family
ID=27257694
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1618144A Granted DE1618144B2 (de) | 1966-04-29 | 1967-04-27 | Verfahren zur Reinigung von Acrylnitril |
Country Status (6)
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1493519A (fr) * | 1966-05-27 | 1967-09-01 | Electro Chimie Soc D | Perfectionnements à la purification de nitriles |
US4177210A (en) * | 1978-07-05 | 1979-12-04 | The Dow Chemical Company | Hydration of acrylonitrile to acrylamide |
US4208329A (en) | 1978-07-31 | 1980-06-17 | E. I. Du Pont De Nemours & Co. | Oxazole removed from acrylonitrile as oxazole sulfate |
US4211722A (en) * | 1979-03-07 | 1980-07-08 | E. I. Du Pont De Nemours & Co. | Formaldehyde stabilization of acrylonitrile against color |
US4474709A (en) * | 1982-06-28 | 1984-10-02 | E. I. Du Pont De Nemours And Company | Removal of oxazole from acetonitrile |
US7211674B2 (en) * | 2003-01-07 | 2007-05-01 | Ineos Usa Llc | Process for the recovery of oxazole |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT494584A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1952-10-09 | 1900-01-01 | Distillers Co Yeast Ltd | |
US3073753A (en) * | 1957-10-10 | 1963-01-15 | Distillers Co Yeast Ltd | Recovery of acrylonitrile |
AT225689B (de) * | 1961-04-08 | 1963-02-11 | Chemie Linz Ag | Verfahren zur Gewinnung von acetonitrilfreiem Acrylnitril |
CA676881A (en) * | 1961-05-31 | 1963-12-24 | Shell Oil Company | Production of lower aliphatic nitriles |
US3287394A (en) * | 1964-05-04 | 1966-11-22 | Eastman Kodak Co | Catalytic synthesis of unsaturated nitriles |
USB375303I5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1964-06-15 |
-
1966
- 1966-04-29 GB GB19021/66A patent/GB1131134A/en not_active Expired
-
1967
- 1967-04-14 SU SU1152772A patent/SU374820A3/ru active
- 1967-04-25 NL NL6705826A patent/NL6705826A/xx unknown
- 1967-04-27 DE DE1618144A patent/DE1618144B2/de active Granted
- 1967-04-28 BE BE697748D patent/BE697748A/xx unknown
-
1969
- 1969-07-25 US US848398A patent/US3524875A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
GB1131134A (en) | 1968-10-23 |
DE1618144A1 (de) | 1972-01-27 |
NL6705826A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-10-30 |
US3524875A (en) | 1970-08-18 |
SU374820A3 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1973-03-20 |
BE697748A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1967-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8339 | Ceased/non-payment of the annual fee |