GB2012271A - Catalytic isomerisation of o-cresol - Google Patents
Catalytic isomerisation of o-cresolInfo
- Publication number
- GB2012271A GB2012271A GB7902292A GB7902292A GB2012271A GB 2012271 A GB2012271 A GB 2012271A GB 7902292 A GB7902292 A GB 7902292A GB 7902292 A GB7902292 A GB 7902292A GB 2012271 A GB2012271 A GB 2012271A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cresol
- catalytic isomerisation
- isomerisation
- catalytic
- al2o3
- 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.)
- Granted
Links
- QWVGKYWNOKOFNN-UHFFFAOYSA-N o-cresol Chemical compound CC1=CC=CC=C1O QWVGKYWNOKOFNN-UHFFFAOYSA-N 0.000 title abstract 6
- 230000003197 catalytic effect Effects 0.000 title abstract 2
- 238000006317 isomerization reaction Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 abstract 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000005995 Aluminium silicate Substances 0.000 abstract 1
- 229910021536 Zeolite Inorganic materials 0.000 abstract 1
- 230000002378 acidificating effect Effects 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 235000012211 aluminium silicate Nutrition 0.000 abstract 1
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 abstract 1
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 150000001768 cations Chemical class 0.000 abstract 1
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 1
- 238000007323 disproportionation reaction Methods 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000010457 zeolite Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A process for the catalytic isomerisation of o-cresol comprises reacting o-cresol at a temperature from 350 DEG C to 450 DEG C optionally under pressure in the presence of a catalyst comprising an acidic crystalline aluminium silicate zeolite of the ZSM group with a composition in the molar ratio 1+/-0.4 M2O/n:Al2O3:5-100 SiO2: 0.60 H2O where M is an n-valent cation. The process avoids substantial disproportionation which is a characteristic of known processes, and permits a selectivity of more than 95% to be obtained.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7800592 | 1978-01-03 | ||
| DE2804537A DE2804537C2 (en) | 1978-02-03 | 1978-02-03 | Process for the catalytic isomerization of o-cresol |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2012271A true GB2012271A (en) | 1979-07-25 |
| GB2012271B GB2012271B (en) | 1982-07-07 |
Family
ID=25773754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7902292A Expired GB2012271B (en) | 1978-01-03 | 1979-01-22 | Catalytic isomerisation process |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2012271B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4503269A (en) * | 1983-09-21 | 1985-03-05 | Uop Inc. | Isomerization of cresols |
| EP0144760A3 (en) * | 1983-11-12 | 1986-12-30 | Hoechst Aktiengesellschaft | Isomerization process of mono or dichloro-phenols |
| EP0416279A1 (en) * | 1989-08-09 | 1991-03-13 | BASF Aktiengesellschaft | Method for the production of mixtures of cresol isomers with a mole ratio of para- to meta-cresol of at least 0.6:1 up to 10:1 |
| US5053558A (en) * | 1988-10-17 | 1991-10-01 | Uop | Process for the isomerization of cresols |
| EP1028102A1 (en) * | 1999-02-02 | 2000-08-16 | Akzo Nobel N.V. | Isomerization of alkyl phenol with a solid acid catalyst |
| US6232485B1 (en) | 1997-10-29 | 2001-05-15 | Great Lakes Chemical Corporation | Production of phosphate esters |
| CN113351243A (en) * | 2021-06-21 | 2021-09-07 | 山西大学 | Catalyst for producing m-cresol from o-cresol by isomerization and preparation method thereof |
| CN115445653A (en) * | 2022-09-01 | 2022-12-09 | 宁夏派可威生物科技有限公司 | Preparation process of cresol isomerization catalyst |
-
1979
- 1979-01-22 GB GB7902292A patent/GB2012271B/en not_active Expired
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4503269A (en) * | 1983-09-21 | 1985-03-05 | Uop Inc. | Isomerization of cresols |
| EP0191120A1 (en) * | 1983-09-21 | 1986-08-20 | Uop Inc. | Isomerization of Cresols |
| EP0144760A3 (en) * | 1983-11-12 | 1986-12-30 | Hoechst Aktiengesellschaft | Isomerization process of mono or dichloro-phenols |
| US5053558A (en) * | 1988-10-17 | 1991-10-01 | Uop | Process for the isomerization of cresols |
| EP0416279A1 (en) * | 1989-08-09 | 1991-03-13 | BASF Aktiengesellschaft | Method for the production of mixtures of cresol isomers with a mole ratio of para- to meta-cresol of at least 0.6:1 up to 10:1 |
| US5015785A (en) * | 1989-08-09 | 1991-05-14 | Basf Aktiengesellschaft | Preparation of mixtures of isomeric cresols with a molar ratio of para- to meta-cresol of at least 0.6:1 to 10:1 |
| US6232485B1 (en) | 1997-10-29 | 2001-05-15 | Great Lakes Chemical Corporation | Production of phosphate esters |
| EP1028102A1 (en) * | 1999-02-02 | 2000-08-16 | Akzo Nobel N.V. | Isomerization of alkyl phenol with a solid acid catalyst |
| CN113351243A (en) * | 2021-06-21 | 2021-09-07 | 山西大学 | Catalyst for producing m-cresol from o-cresol by isomerization and preparation method thereof |
| CN115445653A (en) * | 2022-09-01 | 2022-12-09 | 宁夏派可威生物科技有限公司 | Preparation process of cresol isomerization catalyst |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2012271B (en) | 1982-07-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |