GB698127A - Improvements in or relating to the production of tetrafluorodichloroethane - Google Patents
Improvements in or relating to the production of tetrafluorodichloroethaneInfo
- Publication number
- GB698127A GB698127A GB602951A GB602951A GB698127A GB 698127 A GB698127 A GB 698127A GB 602951 A GB602951 A GB 602951A GB 602951 A GB602951 A GB 602951A GB 698127 A GB698127 A GB 698127A
- Authority
- GB
- United Kingdom
- Prior art keywords
- carbon tetrachloride
- tetrafluoroethylene
- chlorine
- tetrafluoro
- passed
- 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
- C07C17/013—Preparation of halogenated hydrocarbons by addition of halogens
- C07C17/04—Preparation of halogenated hydrocarbons by addition of halogens to unsaturated halogenated hydrocarbons
Abstract
1,1,2,2 - Tetrafluoro -1,2 - dichloroethane is produced by a process which comprises reacting chlorine and tetrafluoroethylene in the presence of an organic liquid diluent which is substantially unreactive towards the reactants and reaction product while exposing the system to actinic radiation. Carbon tetrachloride may be employed as diluent and a reaction temperature at which the desired product distils is preferred. The process may be carried out continuously by passing tetrafluoroethylene and chlorine into a vessel containing carbon tetrachloride whilst the system is exposed to actinic radiation. An inert gas such as nitrogen may be passed into the free space above the carbon tetrachloride. In an example chlorine and tetrafluoroethylene are passed into carbon tetrachloride under nitrogen in a glass vessel exposed to light from a mercury-vapour lamp emitting light of various wavelengths including those in the range 3600 to 4400 . The product which distils over is collected in a low-temperature trap and fractionated and is mainly 1,1,2,2-tetrafluoro-1,2-dichlorethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB602951A GB698127A (en) | 1951-03-14 | 1951-03-14 | Improvements in or relating to the production of tetrafluorodichloroethane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB602951A GB698127A (en) | 1951-03-14 | 1951-03-14 | Improvements in or relating to the production of tetrafluorodichloroethane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB698127A true GB698127A (en) | 1953-10-07 |
Family
ID=9807124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB602951A Expired GB698127A (en) | 1951-03-14 | 1951-03-14 | Improvements in or relating to the production of tetrafluorodichloroethane |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB698127A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3415729A (en) * | 1965-09-14 | 1968-12-10 | Allied Chem | Preparation of tetrafluoro-1,2-diiodoethane |
| WO1993012058A1 (en) * | 1991-12-18 | 1993-06-24 | Allied-Signal Inc. | Process for removing 2-chloro-1,1-difluoroethylene from 1,1,1,2-tetrafluoroethane and co-producing 2-chloro-1,1,1,2-tetrafluoroethane |
| US7282120B2 (en) | 1999-06-16 | 2007-10-16 | Solvay Fluor Gmbh | UV-activated chlorination process |
-
1951
- 1951-03-14 GB GB602951A patent/GB698127A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3415729A (en) * | 1965-09-14 | 1968-12-10 | Allied Chem | Preparation of tetrafluoro-1,2-diiodoethane |
| WO1993012058A1 (en) * | 1991-12-18 | 1993-06-24 | Allied-Signal Inc. | Process for removing 2-chloro-1,1-difluoroethylene from 1,1,1,2-tetrafluoroethane and co-producing 2-chloro-1,1,1,2-tetrafluoroethane |
| US5336377A (en) * | 1991-12-18 | 1994-08-09 | Allied-Signal Inc. | Process for removing 2-chloro-1,1-difluoroethylene from 1,1,1,2-tetrafluoroethane and co-producing 2-chloro-1,1,1,2-tetrafluoroethane |
| AU666349B2 (en) * | 1991-12-18 | 1996-02-08 | Allied-Signal Inc. | Process for removing 2-chloro-1,1-difluoroethylene from 1,1,1,2-tetrafluoroethane and co-producing 2-chloro-1,1,1,2-tetrafluoroethane |
| US7282120B2 (en) | 1999-06-16 | 2007-10-16 | Solvay Fluor Gmbh | UV-activated chlorination process |
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