GB496348A - Manufacture of tetrachlorethylene - Google Patents
Manufacture of tetrachlorethyleneInfo
- Publication number
- GB496348A GB496348A GB4549/38A GB454938A GB496348A GB 496348 A GB496348 A GB 496348A GB 4549/38 A GB4549/38 A GB 4549/38A GB 454938 A GB454938 A GB 454938A GB 496348 A GB496348 A GB 496348A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tetrachlorethylene
- hexachlorethane
- acetylene
- catalyst
- chlorine
- 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
- C07C17/23—Preparation of halogenated hydrocarbons by dehalogenation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Tetrachlorethylene is produced by passing over a hot inorganic catalyst a mixture of acetylene, ethylene, or a chlorhydrocarbon having 2 carbon atoms and not more than 4 chlorine atoms, and hexachlorethane or a fully chlorinated paraffin containing more chlorine than hexachlorethane such as fully chlorinated propane or butane. A suitable mixture may be made by treating tetrachlorethylene with chlorine to convert a part of it into hexachlorethane, and then passing this mixture together with acetylene, ethylene or the chlorhydrocarbon containing not more than 4 carbon atoms over the catalyst. The reaction temperature may be 200-400 DEG C., and the catalyst may be broken glass or porcelain, wood charcoal, bone charcoal, active carbon or silica gel. The catalyst may be impregnated with a substance known to promote splitting off of hydrogen chloride such as cupric chloride. Examples describe the production of tetrachlorethylene from mixtures of hexachlorethane with trichlorethylene, tetrachlorethane, and dichlorethylene, respectively and also from a chlorination product of tetrachlorethylene together with acetylene. In the last case, if excess of acetylene is used some di- and tri-chlorethylene are also produced.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE496348X | 1937-02-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB496348A true GB496348A (en) | 1938-11-29 |
Family
ID=6545021
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4549/38A Expired GB496348A (en) | 1937-02-22 | 1938-02-14 | Manufacture of tetrachlorethylene |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB496348A (en) |
-
1938
- 1938-02-14 GB GB4549/38A patent/GB496348A/en not_active Expired
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