GB957065A - Process for the production of terphenyl - Google Patents
Process for the production of terphenylInfo
- Publication number
- GB957065A GB957065A GB2638761A GB2638761A GB957065A GB 957065 A GB957065 A GB 957065A GB 2638761 A GB2638761 A GB 2638761A GB 2638761 A GB2638761 A GB 2638761A GB 957065 A GB957065 A GB 957065A
- Authority
- GB
- United Kingdom
- Prior art keywords
- terphenyls
- benzene
- pyrolysis
- sulphur
- diphenyl
- 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
- C07C2/00—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms
- C07C2/76—Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by condensation of hydrocarbons with partial elimination of hydrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Terphenyls are obtained by the pyrolysis of benzene and recycled benzene diphenyl and polyphenyls higher than terphenyls, at 750-850 DEG C., the feed having a weight ratio of benzene to diphenyl being 2-4 : 1 and the weight ratio of higher polyphenyls to diphenye being 0.2-1 : 1. The pyrolysis is effected for a time of 0.1-25 seconds at normal pressure. Tube furnaces may be used or a moving heat carrier. 0.1-1% of sulphur in the form of sulphur, hydrogen sulphide or carbon disulphide may be added to reduce corrosion of steel surfaces. The terphenyls separated by fractional condensation or distillation contain about 10% ortho, 60% meta and 30% para isomer. Specification 865,302 is referred to.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEF0031735 | 1960-07-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB957065A true GB957065A (en) | 1964-05-06 |
Family
ID=7094334
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2638761A Expired GB957065A (en) | 1960-07-22 | 1961-07-20 | Process for the production of terphenyl |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB957065A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113636908A (en) * | 2021-08-13 | 2021-11-12 | 涉县津东经贸有限责任公司 | Terphenyl composition and preparation method thereof |
CN114149299A (en) * | 2021-12-08 | 2022-03-08 | 涉县津东经贸有限责任公司 | Preparation method of biphenyl |
-
1961
- 1961-07-20 GB GB2638761A patent/GB957065A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113636908A (en) * | 2021-08-13 | 2021-11-12 | 涉县津东经贸有限责任公司 | Terphenyl composition and preparation method thereof |
CN114149299A (en) * | 2021-12-08 | 2022-03-08 | 涉县津东经贸有限责任公司 | Preparation method of biphenyl |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1037274A (en) | Process for the dehydrohalogenation of halohydrocarbons | |
GB957065A (en) | Process for the production of terphenyl | |
US2490257A (en) | Mono-and polyalkyl mono-and polynuclear mercaptans | |
GB839534A (en) | Nitration of o-toluic acid | |
ES272104A1 (en) | Apparatus for pyrolyzing vapors | |
GB903062A (en) | Dimeric p-isopropenylphenol, a process for its production and its use in the preparation of 1:3:3:trimethyl-1-p-hydroxyphenyl-indan-6-ol | |
US1976468A (en) | Manufacture of polyphenyls | |
US2494817A (en) | Bromination of trifluoromethyl derivatives of benzene | |
US2889361A (en) | Manufacture of aromatic sulfonic acids | |
US2889360A (en) | Manufacture of aromatic sulfonic acids | |
GB1440636A (en) | Heating process and production of heating medium | |
GB873866A (en) | Improvements in or relating to the preparation of m-chloroaniline | |
GB896803A (en) | Process for the manufacture of water-insoluble quinacridones free from sulphonic acid groups | |
Steck | 5-Amino-3-chloropyridazine | |
GB934467A (en) | Improvements in or relating to terphenyls | |
US2521429A (en) | Thiophene production from diolefin, hydrogen sulfide, and alumina | |
GB929368A (en) | Hydrocarbon refining process | |
GB843745A (en) | Process for the preparation of 2, 6-dialkyl phenols | |
GB1131530A (en) | Method for preparing polyhydroxy aromatic compounds rich in meta orientation | |
GB970024A (en) | Preparation of tetrachloroxylylenediamines | |
GB786668A (en) | Production of polyalkyl benzenes | |
GB886714A (en) | Production of fluorocarbons | |
GB992630A (en) | Process for the production of meta-alkylphenols | |
GB810751A (en) | Catalyst and process for the dealkylation of aromatic hydrocarbons | |
JPS5764624A (en) | Production of monoalkylbenzene |