GB534236A - A process for the catalytic cyclisation of aliphatic hydrocarbons - Google Patents
A process for the catalytic cyclisation of aliphatic hydrocarbonsInfo
- Publication number
- GB534236A GB534236A GB2522339A GB2522339A GB534236A GB 534236 A GB534236 A GB 534236A GB 2522339 A GB2522339 A GB 2522339A GB 2522339 A GB2522339 A GB 2522339A GB 534236 A GB534236 A GB 534236A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hydrocarbons
- proportion
- atoms
- molecules
- molecule
- 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
- C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
- C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
- C07C5/373—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation
- C07C5/393—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen with simultaneous isomerisation with cyclisation to an aromatic six-membered ring, e.g. dehydrogenation of n-hexane to benzene
- C07C5/41—Catalytic processes
- C07C5/412—Catalytic processes with metal oxides or metal sulfides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
534,236. Hydrocarbons. FITE, J. G. (Naamlooze Vennootschap de Bataafsche Petroleum Maatschappij). Sept. 7, 1939, No. 25223. [A Specification was laid open to inspection under Sect. 91 of the Acts, March 16, 1940.] [Class 2 (iii)] In a process for the catalytic cyclisation of aliphatic hydrocarbons containing more than 5, and at most about 12, carbon atoms in the molecule, the hydrocarbons are contacted at temperatures between 400‹ and 600‹C. with a catalyst containing Al 2 O 3 and Cr 2 O 3 in the molecular ratios (10-40):(90-60) and also containing alkali metal compounds in such a proportion that at most 30, and preferably between 15 and 20, alkali metal atoms are present per 100 molecules of Al 2 O 3 -Cr 2 O 3 mixture. In examples, (1) n-heptane is passed over a catalyst containing the oxides in the molecular proportion of 30 to 70, to which 18 atoms of potassium (in the form of nitrate) per 100 molecules of oxide mixture is added ; the product consists largely of toluene ; (2) n-nonane is passed over a similar catalyst ; the product consists chiefly of α-methylethylbenzene, with a smaller proportion of aromatic hydrocarbons with less than 9 carbon atoms in the molecule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2522339A GB534236A (en) | 1939-09-07 | 1939-09-07 | A process for the catalytic cyclisation of aliphatic hydrocarbons |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2522339A GB534236A (en) | 1939-09-07 | 1939-09-07 | A process for the catalytic cyclisation of aliphatic hydrocarbons |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB534236A true GB534236A (en) | 1941-03-03 |
Family
ID=10224203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2522339A Expired GB534236A (en) | 1939-09-07 | 1939-09-07 | A process for the catalytic cyclisation of aliphatic hydrocarbons |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB534236A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3501542A (en) * | 1968-02-29 | 1970-03-17 | Gulf Research Development Co | Dehydrocyclization process |
| US3761532A (en) * | 1969-03-26 | 1973-09-25 | Raffinage Cie Francaise | Ortho dialkyl benzene preparation via dehydrocyclization process |
-
1939
- 1939-09-07 GB GB2522339A patent/GB534236A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3501542A (en) * | 1968-02-29 | 1970-03-17 | Gulf Research Development Co | Dehydrocyclization process |
| US3761532A (en) * | 1969-03-26 | 1973-09-25 | Raffinage Cie Francaise | Ortho dialkyl benzene preparation via dehydrocyclization process |
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