GB1399382A - Isomerisation of dimethylnaphthalenes - Google Patents
Isomerisation of dimethylnaphthalenesInfo
- Publication number
- GB1399382A GB1399382A GB4044472A GB4044472A GB1399382A GB 1399382 A GB1399382 A GB 1399382A GB 4044472 A GB4044472 A GB 4044472A GB 4044472 A GB4044472 A GB 4044472A GB 1399382 A GB1399382 A GB 1399382A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dmn
- dimethylnaphthalenes
- mixture
- per cent
- isomerisation
- 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
- C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
- C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
- C07C5/2729—Changing the branching point of an open chain or the point of substitution on a ring
- C07C5/2732—Catalytic processes
- C07C5/2735—Catalytic processes with metal oxides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
1399382 Isomerizing dimethylnaphthalenes TEIJIN Ltd 31 Aug 1972 [2 Sept 1971] 40444/72 Heading C5E [Also in Division C2] Dimethylnaphthalenes are isomerized at 260-370‹ C. in the vapour phase using a carrier gas and a silica-alumina catalyst, at least 80 wt. per cent of the catalyst being in the form of particles of size 7-150 mesh (Tyler) 2,6 DMN may be obtained from a mixture of 2,6-, 1,6- and 1,5-DMN; 2,7 DMN from a mixture of 2,7-, 1,7- and 1,8-DMN. Preferably the trimethylnaphthalene content of the feed is not more than 10 mol. per cent. Suitable carrier gases include N 3 , CO 2 , H 2 , and C 1 -C 10 hydrocarbons.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP46067730A JPS5117547B2 (en) | 1971-09-02 | 1971-09-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1399382A true GB1399382A (en) | 1975-07-02 |
Family
ID=13353351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4044472A Expired GB1399382A (en) | 1971-09-02 | 1972-08-31 | Isomerisation of dimethylnaphthalenes |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPS5117547B2 (en) |
| CA (1) | CA970397A (en) |
| DE (1) | DE2243005A1 (en) |
| GB (1) | GB1399382A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5724331B2 (en) * | 1973-05-31 | 1982-05-24 | ||
| JPH038563Y2 (en) * | 1981-06-12 | 1991-03-04 | ||
| JPS62181570U (en) * | 1986-05-08 | 1987-11-18 |
-
1971
- 1971-09-02 JP JP46067730A patent/JPS5117547B2/ja not_active Expired
-
1972
- 1972-08-31 GB GB4044472A patent/GB1399382A/en not_active Expired
- 1972-09-01 CA CA150,837A patent/CA970397A/en not_active Expired
- 1972-09-01 DE DE2243005A patent/DE2243005A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4834150A (en) | 1973-05-16 |
| CA970397A (en) | 1975-07-01 |
| DE2243005A1 (en) | 1973-03-15 |
| JPS5117547B2 (en) | 1976-06-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |