GB1152021A - Dehydrohalogenation Process - Google Patents
Dehydrohalogenation ProcessInfo
- Publication number
- GB1152021A GB1152021A GB2519166A GB2519166A GB1152021A GB 1152021 A GB1152021 A GB 1152021A GB 2519166 A GB2519166 A GB 2519166A GB 2519166 A GB2519166 A GB 2519166A GB 1152021 A GB1152021 A GB 1152021A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyhalohydrocarbon
- faujasite
- difluoroethane
- dehydrohalogenation
- larger
- 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
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/25—Preparation of halogenated hydrocarbons by splitting-off hydrogen halides from halogenated hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1,152,021. Dehydrohalogenation process. PULLMAN Inc. 6 June, 1966 [30 Aug., 1965], No. 25191/66. Heading C2C. [Also in Division C5] A polyhalohydrocarbon having a saturated halohydrocarbon group and optionally hydroxyl substitution is dehydrohalogenated by reacting it at a temperature of at least 50‹ C. in the presence of an alumino-silicate catalyst having a pore size of at least 6A, the pores being formed by a 12-membered ring; and an inert diluent for the polyhalohydrocarbon having a molecular dimension larger than the pore opening of the catalyst and larger than a molecular dimension of the polyhalohydrocarbon. The reaction may be carried out at sub-atmospheric or superatmospheric pressure, in vapour or liquid phase, with the polyhalohydrocarbon diluted to between 10 and 50 mole per cent. Examples relate to dehydrohalogenation of 1,2-dichloro-ethane using Na and Ca faujasites and H-mordenite; of 1,1-dichloroethane using Na faujasite; and of 1,4 - dichlorobutane; 1,2 - dichloropropane; 1,1 - difluoroethane, 1,1,1 - trichloroethane, all using Na faujasite. Other polyhalohydrocarbons are mentioned. Acetaldehyde is produced as a by-product in the dehydrogenation of 1,1-difluoroethane.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US48377365A | 1965-08-30 | 1965-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1152021A true GB1152021A (en) | 1969-05-14 |
Family
ID=23921473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2519166A Expired GB1152021A (en) | 1965-08-30 | 1966-06-06 | Dehydrohalogenation Process |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1152021A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2169817A1 (en) * | 1971-12-17 | 1973-09-14 | Monsanto Co | |
EP0002021A1 (en) * | 1977-11-18 | 1979-05-30 | The B.F. GOODRICH Company | Catalytic dehydrohalogenation process |
US4384159A (en) * | 1982-03-12 | 1983-05-17 | The Dow Chemical Company | Catalytic dehydrohalogenation process |
EP0545509A1 (en) * | 1991-11-21 | 1993-06-09 | VAW Aluminium AG | Catalyst, use of the same and process for hydrodehalogenation of organic halogenated compounds |
EP0565789A1 (en) * | 1992-04-15 | 1993-10-20 | Evc Technology Ag | Production of vinyl chloride by catalytic dehydrohalogenation |
US5750808A (en) * | 1995-07-11 | 1998-05-12 | E. I. Du Pont De Nemours And Company | Dehydrohalogenation processes |
DE10219720B4 (en) * | 2002-05-02 | 2005-06-09 | Uhde Gmbh | Process for the preparation of unsaturated halogen-containing hydrocarbons and apparatus suitable therefor |
-
1966
- 1966-06-06 GB GB2519166A patent/GB1152021A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2169817A1 (en) * | 1971-12-17 | 1973-09-14 | Monsanto Co | |
EP0002021A1 (en) * | 1977-11-18 | 1979-05-30 | The B.F. GOODRICH Company | Catalytic dehydrohalogenation process |
US4384159A (en) * | 1982-03-12 | 1983-05-17 | The Dow Chemical Company | Catalytic dehydrohalogenation process |
EP0545509A1 (en) * | 1991-11-21 | 1993-06-09 | VAW Aluminium AG | Catalyst, use of the same and process for hydrodehalogenation of organic halogenated compounds |
EP0565789A1 (en) * | 1992-04-15 | 1993-10-20 | Evc Technology Ag | Production of vinyl chloride by catalytic dehydrohalogenation |
US5750808A (en) * | 1995-07-11 | 1998-05-12 | E. I. Du Pont De Nemours And Company | Dehydrohalogenation processes |
DE10219720B4 (en) * | 2002-05-02 | 2005-06-09 | Uhde Gmbh | Process for the preparation of unsaturated halogen-containing hydrocarbons and apparatus suitable therefor |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |