GB723715A - Process for the manufacture of fluorochlorethylenes - Google Patents
Process for the manufacture of fluorochlorethylenesInfo
- Publication number
- GB723715A GB723715A GB27226/52A GB2722652A GB723715A GB 723715 A GB723715 A GB 723715A GB 27226/52 A GB27226/52 A GB 27226/52A GB 2722652 A GB2722652 A GB 2722652A GB 723715 A GB723715 A GB 723715A
- Authority
- GB
- United Kingdom
- Prior art keywords
- active carbon
- fluoro
- yield
- copper
- trichlorethylene
- 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
Abstract
Fluorochloroethylenes are made by passing vaporized fluorochlorethanes over heated surfaces. Substances having large surfaces are preferred, e.g. active carbon and silica gel, and activators, e.g. metal salts such as chlorides and particularly alkaline earth metal or copper chlorides may be present. Specified temperatures are 200-300 DEG C. or higher. In examples 1-fluoro-1,1,2,2-tetrachlorethane is passed through (1) a copper p tube containing copper turnings at 470 DEG C. to yield fluoro-trichlorethylene; (2) active carbon containing barium chloride at 300 DEG C. to yield fluoro-trichlorethylene; and (3) active carbon containing strontium chloride at 240 DEG C. to yield 1,1-difluoro-2,2-dichlorethylene.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE307970X | 1951-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB723715A true GB723715A (en) | 1955-02-09 |
Family
ID=6121588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27226/52A Expired GB723715A (en) | 1951-11-20 | 1952-10-29 | Process for the manufacture of fluorochlorethylenes |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE513162A (en) |
| CH (1) | CH307970A (en) |
| FR (1) | FR1074575A (en) |
| GB (1) | GB723715A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3116337A (en) * | 1960-09-06 | 1963-12-31 | Pennsalt Chemicals Corp | Process for the preparation of fluorinated olefins |
| US3118005A (en) * | 1960-12-27 | 1964-01-14 | Attila E Pavlath | Titania catalyzed dehydrofluorination of 1, 1, 1-difluorochloro alkanes |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2774799A (en) * | 1954-04-01 | 1956-12-18 | Kellogg M W Co | Selective dehydrohalogenation of fluorohaloalkanes using a copper catalyst |
-
0
- BE BE513162D patent/BE513162A/xx unknown
-
1952
- 1952-07-18 CH CH307970D patent/CH307970A/en unknown
- 1952-08-29 FR FR1074575D patent/FR1074575A/en not_active Expired
- 1952-10-29 GB GB27226/52A patent/GB723715A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3116337A (en) * | 1960-09-06 | 1963-12-31 | Pennsalt Chemicals Corp | Process for the preparation of fluorinated olefins |
| US3118005A (en) * | 1960-12-27 | 1964-01-14 | Attila E Pavlath | Titania catalyzed dehydrofluorination of 1, 1, 1-difluorochloro alkanes |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1074575A (en) | 1954-10-06 |
| CH307970A (en) | 1955-06-30 |
| BE513162A (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES290326A1 (en) | Procedure for the production of an analogy silicate mineral to the arcilla (Machine-translation by Google Translate, not legally binding) | |
| GB723715A (en) | Process for the manufacture of fluorochlorethylenes | |
| GB1048834A (en) | Production of furnace carbon black | |
| GB873212A (en) | Process for the manufacture of 1:1:1-trifluoro-2-chloro-2-bromethane | |
| GB720517A (en) | Improved process for the production of titanium | |
| GB907439A (en) | Organic fluorine-containing compounds and a process for preparing them | |
| GB635553A (en) | Improvements in or relating to the production of aluminium fluoride from aluminium-ammonium fluoride | |
| GB634167A (en) | Improved process of preparing selenium to which is added small quantities of substances for the purpose of increasing its conductivity | |
| GB727700A (en) | Improvements in or relating to solutions for fireproofing light weight cellulosic materials | |
| GB785209A (en) | Manufacture of 1:1-difluoro-1-chlorethane | |
| GB598660A (en) | Improvements in and relating to the production of iron powder | |
| GB196258A (en) | Process for the manufacture and production of chemically pure hydrochloric acid | |
| GB424308A (en) | An improved process for the production of potassium nitrate from sodium nitrate | |
| GB496294A (en) | Improvements in or relating to processes for the manufacture of hydrides of the alkali earth metals | |
| GB740418A (en) | Process for the manufacture of 1:2:3:4-tetrachloro-hexafluorobutane | |
| GB881582A (en) | A process for the manufacture of the alkali metal salts of urea | |
| ES401301A1 (en) | Adducts of triglycidyl isocyanurate with novolaks able to form cross links | |
| GB522209A (en) | Improvements in or relating to the manufacture of chlorosulphonates | |
| GB602816A (en) | Improvements in or relating to cyanuric chloride | |
| GB1061377A (en) | A process for manufacturing tetrafluoroethylene | |
| GB596186A (en) | An improved process for the manufacture of vinyl chloride | |
| GB596576A (en) | Purifying anhydrous zirconium chloride | |
| GB958866A (en) | Production of ethylene sulphide | |
| GB1038695A (en) | Process for the manufacture of difluorochlorobromomethane | |
| GB569220A (en) | New thiazole derivatives |