JPS5645421A - Dealkylation process - Google Patents
Dealkylation processInfo
- Publication number
- JPS5645421A JPS5645421A JP12080479A JP12080479A JPS5645421A JP S5645421 A JPS5645421 A JP S5645421A JP 12080479 A JP12080479 A JP 12080479A JP 12080479 A JP12080479 A JP 12080479A JP S5645421 A JPS5645421 A JP S5645421A
- Authority
- JP
- Japan
- Prior art keywords
- zeolite catalyst
- btx
- molar ratio
- dealkylation
- aromatic hydrocarbon
- 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.)
- Pending
Links
- 230000020335 dealkylation Effects 0.000 title abstract 3
- 238000006900 dealkylation reaction Methods 0.000 title abstract 3
- 238000000034 method Methods 0.000 title 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 5
- 150000004945 aromatic hydrocarbons Chemical class 0.000 abstract 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract 3
- 229910021536 Zeolite Inorganic materials 0.000 abstract 3
- 239000003054 catalyst Substances 0.000 abstract 3
- 239000010457 zeolite Substances 0.000 abstract 3
- -1 BTX Chemical class 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- HYFLWBNQFMXCPA-UHFFFAOYSA-N 1-ethyl-2-methylbenzene Chemical compound CCC1=CC=CC=C1C HYFLWBNQFMXCPA-UHFFFAOYSA-N 0.000 abstract 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 abstract 1
- 125000000217 alkyl group Chemical group 0.000 abstract 1
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract 1
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 abstract 1
- 239000012299 nitrogen atmosphere Substances 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000008096 xylene Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C4/00—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
- C07C4/08—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule
- C07C4/12—Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by splitting-off an aliphatic or cycloaliphatic part from the molecule from hydrocarbons containing a six-membered aromatic ring, e.g. propyltoluene to vinyltoluene
-
- 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
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PURPOSE: To obtain aromatic hydrocarbons such as BTX, etc., in high selestivity, by the selective dealkylation of a benzene compound despecially an having ethyl group under mild conditions in the presence of an H-type zeolite catalyst having a specific ailica/alumina molar ratio.
CONSTITUTION: Aromatic hydrocarbons valuable as chemical raw materials, e.g. benzene, toluene and xylene (BTX) are prepared by the gas-phase dealkylation of an aromatic hydrocarbon having one or more ≥2C alkyl groups, such as ethyltoluene, etc. at 250W550°C and 2W20kg/cm2G, in the presence of 0.1W20mol, based on 1mol of the aromatic hydrocarbon, of H2 and an H-type crystalline aluminosilicate zeolite catalyst having a silica/alumina molar ratio of ≥10, especially ≥15. The zeolite catalyst is preferably heat-treated at 200W600°C for 1W5hr in air or N2 atmosphere before use.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12080479A JPS5645421A (en) | 1979-09-21 | 1979-09-21 | Dealkylation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12080479A JPS5645421A (en) | 1979-09-21 | 1979-09-21 | Dealkylation process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5645421A true JPS5645421A (en) | 1981-04-25 |
Family
ID=14795388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12080479A Pending JPS5645421A (en) | 1979-09-21 | 1979-09-21 | Dealkylation process |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5645421A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS635150A (en) * | 1986-06-24 | 1988-01-11 | Mikuni Kogyo Co Ltd | Pressure balanced carburetor |
| US4857255A (en) * | 1985-04-04 | 1989-08-15 | Asahi Kasei Kogyo Kabushiki Kaisha | Poly-p-phenylene-terephthalamide film and process for producing the same |
| US6767967B2 (en) | 2000-07-27 | 2004-07-27 | Hitachi Chemical Co., Ltd. | Pseudo cross-link type resin composition, molding material, sheet or film, and optical element obtained therefrom |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5116619A (en) * | 1974-06-17 | 1976-02-10 | Mobil Oil |
-
1979
- 1979-09-21 JP JP12080479A patent/JPS5645421A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5116619A (en) * | 1974-06-17 | 1976-02-10 | Mobil Oil |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4857255A (en) * | 1985-04-04 | 1989-08-15 | Asahi Kasei Kogyo Kabushiki Kaisha | Poly-p-phenylene-terephthalamide film and process for producing the same |
| JPS635150A (en) * | 1986-06-24 | 1988-01-11 | Mikuni Kogyo Co Ltd | Pressure balanced carburetor |
| US6767967B2 (en) | 2000-07-27 | 2004-07-27 | Hitachi Chemical Co., Ltd. | Pseudo cross-link type resin composition, molding material, sheet or film, and optical element obtained therefrom |
| US7295376B2 (en) | 2000-07-27 | 2007-11-13 | Hitachi Chemical Company, Ltd. | Pseudo cross-link type resin composition, molding material, sheet or film, and optical element obtained therefrom |
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